Attractive deep morphology-aware active contour network for vertebral body contour extraction with extensions to heterogeneous and semi-supervised scenarios.

Automatic vertebral body contour extraction (AVBCE) from heterogeneous spinal MRI is indispensable for the comprehensive diagnosis and treatment of spinal diseases. However, AVBCE is challenging due to data heterogeneity, image characteristics complexity, and vertebral body morphology variations, which may cause morphology errors in semantic segmentation. Deep active contour-based (deep ACM-based) methods provide a promising complement for tackling morphology errors by directly parameterizing the contour coordinates. Extending the target contours' capture range and providing morphology-aware parameter maps are crucial for deep ACM-based methods. For this purpose, we propose a novel Attractive Deep Morphology-aware actIve contouR nEtwork (ADMIRE) that embeds an elaborated contour attraction term (CAT) and a comprehensive contour quality (CCQ) loss into the deep ACM-based framework. The CAT adaptively extends the target contours' capture range by designing an all-to-all force field to enable the target contours' energy to contribute to farther locations. Furthermore, the CCQ loss is carefully designed to generate morphology-aware active contour parameters by simultaneously supervising the contour shape, tension, and smoothness. These designs, in cooperation with the deep ACM-based framework, enable robustness to data heterogeneity, image characteristics complexity, and target contour morphology variations. Furthermore, the deep ACM-based ADMIRE is able to cooperate well with semi-supervised strategies such as mean teacher, which enables its function in semi-supervised scenarios. ADMIRE is trained and evaluated on four challenging datasets, including three spinal datasets with more than 1000 heterogeneous images and more than 10000 vertebrae bodies, as well as a cardiac dataset with both normal and pathological cases. Results show ADMIRE achieves state-of-the-art performance on all datasets, which proves ADMIRE's accuracy, robustness, and generalization ability.

Effectiveness of combined use of targeted pressure energy, radiofrequency, and high-intensity focused electromagnetic fields to improve skin quality and appearance of fat and muscle tissue in different body parts.

BACKGROUND: Inevitable signs of aging are especially noticeable in middle to elder age when stretch marks, loose skin, cellulite, and body-contour changes naturally appear. AIMS: To verify efficacy of high-intensity focused electromagnetic field (HIFEM), radiofrequency (RF), and Targeted Pressure Energy (TPE) combination treatment to address unfavorable changes in skin, fat, and muscle tissue. METHODS: The device simultaneously emitting monopolar RF and TPE energies was consecutively combined with simultaneous HIFEM+RF procedure in 32 subjects (21-64 years, 17.4-33.5 kg/m2 ) for treatment of thighs (N = 15; back, inner, or front), buttocks/saddlebags (N = 7), abdomen (N = 8), and upper arms (N = 2). All patients underwent four weekly, combined treatments of 30-min HIFEM+RF procedure followed by 15-30 min RF+TPE, depending on treatment area. Circumferential measurements, digital photographs, subject satisfaction, and comfort questionnaires were assessed up to 3-months post-treatment. RESULTS: Majority of participants found treatments comfortable, no adverse events occurred. Subjects showed substantial improvement in all treated areas from 1-month follow-up. Combination of HIFEM+RF, monopolar RF, and TPE resulted in significant circumference decrease. Generally, more pronounced results were seen at 3 months when subjects showed -5.2 cm on abdomen, -3.0 cm on thighs, and -5.5 cm on saddlebags, respectively. Ninety-four percent of subjects were satisfied with treatment results, most noticed improvement in cellulite, skin laxity, and muscle definition. CONCLUSIONS: Results showed high patient satisfaction and efficacy in improving body contour and skin quality. Combining simultaneous HIFEM+RF procedure with simultaneous monopolar RF+TPE treatments considerably enhanced body contour and skin tissue. The procedure proved versatile and may effectively treat multiple body parts.

Braquioplastia en pacientes con pérdida masiva de peso. Experiencia del Servicio de Cirugía Plástica y Microcirugía del Hospital Pasteur, Montevideo, Uruguay / Brachioplasty in massive weight loss patients. Experience at the Plastic Surgery and Microsurgery Unit of Hospital Pasteur, Montevideo, Uruguay

Introducción y objetivo: En la actualidad se ha visto un incremento en la cirugía de contorno corporal producto del aumento de la cirugía bariátrica. Las deformidades del brazo tras adelgazamiento masivo son también motivo frecuente de preocupación y consulta por los pacientes. Están descritas numerosas técnicas de braquioplastia para mejorar el contorno en dicha región, con un alto índice de satisfacción. Nuestro Servicio de Cirugía Plástica y Microcirugía del Hospital Pasteur en Montevideo, Uruguay, ha incursionado en los últimos años en la técnica de braquioplastia en L descrita por Hurwitz por ser sencilla, reproducible y con buenos resultados, adaptable a distintos tipos de afectación. El objetivo de este trabajo es mostrar la experiencia de nuestro Servicio con dicha técnica. Material y método: Describimos la técnica quirúrgica empleada y llevamos a cabo una revisión de la casuística de pacientes intervenidos en nuestro centro entre 2015 y 2018. Resultados: Recogimos un total de 28 pacientes, 20 mujeres y 8 varones con una edad media de 47 años y un índice de masa corporal medio de 27. En el 42% empleamos anestesia general (casos severos o con procedimientos asociados). En 9 pacientes el procedimiento fue ambulatorio, 15 fueron dados de alta a las 24 horas y 3 a las 48 horas. Un solo caso tuvo 5 días de hospitalización por complicación. Estas complicaciones fueron 2 cicatrices patológicas, 1 dehiscencia de sutura, 1 asimetría en la altura de la cicatriz y 1 síndrome compartimental. Conclusiones: En nuestra experiencia, la braquioplastia en L en pacientes postbariátricos es una técnica versátil, que permite resolver diferentes grados de afectación. (AU)

Background and objective: Currently, there has been an increase in body contouring surgery as a result of the increase in bariatric surgery. Arm deformities after massive weight loss are also a frequent reason for concern and consultation by patients. Numerous brachioplasty techniques have been described to improve the contour in this region, with a high satisfaction rate. Our Department of Plastic Surgery and Microsurgery at Hospital Pasteur in Montevideo, Uruguay, is using in recent years the L-shaped brachioplasty technique described by Hurwitz as being simple, reproducible and with good results, adaptable to different types of involvement. The objective of this work is to show the experience of our Service with this technique. Methods: We describe the surgical technique used and carry out a review of patients operated on in our center between 2015 and 2018. Results: We collected a total of 28 patients, 20 women and 8 men with a mean age of 47 years and a mean body mass index of 27 Kg/m2. In 42% we used general anesthesia (severe cases or with associated procedures). In 9 patients the procedure was ambulatory, 15 were discharged after 24 hours and 3 after 48 hours. Only 1 case had 5 days of hospitalization due to a complication. These complications were 2 pathological scars, 1 suture dehiscence, 1 asymmetry in the height of the scar, and 1 compartment syndrome. Conclusions: In our experience, L-shaped brachioplasty in postbariatric patients is a versatile technique that allows different degrees of involvement to be resolved. (AU)

Analysis of the Influence of Peripheral Anatomical Changes for CBCT-Guided Prostate Cancer Radiotherapy.

PURPOSE: To analyze the influence of the bladder and rectum filling and the body contour changes on the prostate target dose. METHODS: A total of 190 cone-beam CT (CBCT) image data sets from 16 patients with prostate cancer were used in this study. Dose reconstruction was performed on the virtual CT generated by the deformable planning CT. Then, the effects of the bladder filling, rectal filling, and the patient's body contour changes of the PCTV1 (the prostate area, B1) and PCTV2 (the seminal vesicle area, B2) on the target dose were analyzed. Correlation analysis was performed for the ratio of bladder and rectal volume variation and the variation of the bladder and rectal dose. RESULTS: The mean Dice coefficients of B1, B2, bladder, and rectum were 0.979, 0.975, 0.888 and 0.827, respectively, and the mean Hausdorff distances were 0.633, 1.505, 2.075, and 1.533, respectively. With the maximum volume variations of 142.04 ml for the bladder and 40.50 ml for the rectum, the changes of V100, V95, D2, and D98 were 1.739 ± 1.762 (%), 0.066 ± 0.169 (%), 0.562 ± 0.442 (%), and 0.496 ± 0.479 (%) in PCTV1 and 1.686 ± 1.051 (%), 0.240 ± 0.215 (%), 1.123 ± 0.925 (%), and 0.924 ± 0.662 (%) in PCTV2, respectively. With a 10% increase in the volume of the bladder and rectum, the V75, V70, and V65 of rectum increased at 0.73 (%), 0.71 (%), and 1.18 (%), and the V75, V70, and V65 of bladder changed at -0.21 (%), -0.32 (%), and -0.39 (%), respectively. CONCLUSION: Significant correlations were observed between the volume variation and the dose variation of the bladder and rectum. However, when a bladder and rectal filling protocol was adopted, the target dose coverage can be effectively ensured based on CBCT guidance to correct the prostate target position.

Abdominoplastia circunferencial simples e composta: evolução técnica, experiência de 10 anos e análise das complicações / Simple and composite circumferential abdominoplasty: technical evolution, 10-year experience and analysis of complications

Introdução: Pacientes portadores de obesidade mórbida submetidos à cirurgia bariátrica, após perda ponderal maciça, evoluem com grandes dobras de pele em várias regiões do corpo, incluindo abdome. Nos pacientes com excessos dermogordurosos em toda circunferência abdominal e ptose da região glútea, a abdominoplastia circunferencial (simples ou composta) tem demonstrado ser uma solução cirúrgica eficaz, pois a abdominoplastia convencional ou "em âncora" traz resultados insatisfatórios naqueles pacientes com dismorfia severa. O objetivo é analisara evolução técnica da abdominoplastia circunferencial simples e composta e suas complicações. Métodos: Foram avaliados 29 pacientes, sendo 28 do sexo feminino, com média etária de 41,17 anos, submetidos à abdominoplastia circunferencial, entre 2002 e 2012. Este estudo retrospectivo, realizado através de dados colhidos dos prontuários médicos, avaliou: tempo de cirurgia, peso da peça cirúrgica ressecada, tempo de internação hospitalar, antibioticoterapia utilizada, complicações associadas e alterações ocorridas na técnica operatória neste período. Resultados: A abdominoplastia circunferencial composta foi realizada em 23 pacientes (79,3%) e a simples em seis (20,7%). O tempo cirúrgico médio foi de 346 minutos e o peso médio da peça operatória foi 4323 gramas. Três pacientes (10,3%) tiveram complicações maiores (anemia sintomática e deiscência de sutura maior) e cinco (17,2%) complicações menores (pequenas deiscências, pequeno sangramento espontâneo, seroma e cicatriz hipertrófica). Entre 2002 e 2004 ocorreram 75% das complicações. O índice de reoperação foi de 6,9%. Conclusão: Houve importante evolução técnica na realização da abdominoplastia circunferencial, sendo que a incidência de complicações e a taxa de reoperação foram similares àquelas encontradas na literatura.

Introduction: Morbidly obese patients undergoing bariatric surgery after massive weight loss evolve with large skin folds in various body regions, including the abdomen. In patients with dermofat excesses throughout the abdominal circumference and ptosis of the gluteal region, circumferential abdominoplasty (simple or composite) has been an effective surgical solution conventional or "anchor" abdominoplasty brings unsatisfactory results in those patients with severe dysmorphia. The objective is to analyze the technical evolution of simple and composite circumferential abdominoplasty and its complications. Methods: Twenty-nine patients were evaluated, 28 females, with a mean age of 41.17 years, submitted to circumferential abdominoplasty between 2002 and 2012. This retrospective study, conducted through data collected from medical records, evaluated: surgery time, the weight of the resected surgical specimen, length of hospital stays, antibiotic therapy used, associated complications, and changes in the surgical technique in this period. Results: Composite circumferential abdominoplasty was performed in 23 patients (79.3%) and the simple one in six (20.7%). The mean surgical time was 346 minutes, and the surgical specimen's mean weight was 4323 grams. Three patients (10.3%) had significant complications (symptomatic anemia and major suture dehiscence) and five (17.2%) minor complications (minor dehiscence, slight spontaneous bleeding, seroma, and hypertrophic scarring). Between 2002 and 2004, 75% of the complications occurred. The reoperation rate was 6.9%. Conclusion: There was a significant technical evolution in circumferential abdominoplasty performance, and the incidence of complications and the rate of reoperation were similar to those found in the literature.

Improvement of body contour in young women using a high-power radiofrequency device.

Localized fat and excess body fat: this is one of the main causes of dissatisfaction with body contour and decreased self-esteem. The objective of this report is to present the results of treatment using Capenergy C 200 in a group of young volunteers who received treatment only in the right half of the body. We will review the science and literature of the effect of TECAR and its role in body contouring. The average decrease in the arm is 2.9 cm p = .026. The nipple rise was 2.1 cm, p = .002. The decrease in abdominal diameter was 3.3 cm, p = .027 at the end of the treatment. For the thigh, the difference in diameter was 3.9 p = .026, this difference being statistically significant. TECAR radiofrequency treatment therapies, for body contouring in the breast, arms, abdomen and thighs, are effective and can show positive results after 6 treatment sessions, resulting in body satisfaction at the end of the treatment.

Complicação grave do uso irregular de silicone industrial em paciente transexual: relato de caso / Severe complication by irregular use of industrial silicone in a transsexual patient: a case report

O uso do silicone líquido industrial como material para modificação estética no contorno corporal é uma prática realizada de forma clandestina há cerca de 60 anos. Atualmente, a maioria dos relatos provém de países da Ásia e América do Sul e as vítimas são principalmente mulheres e transexuais. Devido ao grande número de casos com complicações, o uso do silicone industrial para fins estéticos nunca foi aprovado. Entretanto, continua a ser aplicado isoladamente ou associado a outros produtos, determinando graves complicações locais e sistêmicas. Relata-se um caso de óbito de paciente transexual após injeção de silicone industrial em coxas e glúteos.

The use of industrial liquid silicone as a material for aesthetic modification of body contour is a practice that has been carried out clandestine for about 60 years. Currently, most reports come from countries in Asia and South America, and the victims are mainly women and transsexuals. Due to the large number of cases with complications, the use of industrial silicone for aesthetic purposes has never been approved. However, it continues to be applied alone or associated with other products, determining severe local and systemic complications. We report a case of death of a transsexual patient after injecting industrial silicone in the thighs and buttocks.

Outras tendências na abdominoplastia: novo desenho e importância da lipomidiabdominoplastia na cirurgia do contorno corporal / Other trends in abdominoplasty: new design and importance of lipomid- abdominoplasty in body contour surgery

Introdução: Durante os últimos anos, os princípios cirúrgicos da abdominoplastia permaneceram inalterados. Portanto, muitos resultados observados apresentam desalinhamento, cicatrizes transversais altas e retas do abdome, levando ao posicionamento final da cicatriz umbilical a ser muito próximo da cicatriz transversal, o que dá a impressão de abdome curto. Propomos que a abdominoplastia modifique a concepção básica de sua marcação, pois acreditamos que é importante posicionar a cicatriz transversal mais baixa na região medial e púbica, e mais alta nas extremidades laterais, permitindo, no nível dos flancos, a rotação dos retalhos lombares no sentido anterior em direção inferomedial. Métodos: Foram analisados de forma retrospectiva 146 pacientes portadores de deformidades abdominais e os submetemos a lipomidiabdominoplastia, marcando com forte concavidade superior e orientando os lados da cicatriz em direção à linha transversa inferior do abdômen, 4cm equidistantes da raiz da coxa. Também associamos a lipoaspiração como um tratamento complementar ao contorno corporal. Resultados: Consideramos que os parâmetros da midiabdominoplastia são aplicáveis na maioria dos casos, obtendo resultados igualmente satisfatórios, tanto nos pacientes com flacidez e lipodistrofia abdominal supraumbilical, quanto nos pacientes com abdome em avental com importante flacidez e diástase dos retos abdominais. Conclusão: É importante determinar a área da deformidade abdominal e sua classificação, para estabelecer as estratégias do tratamento e associação de procedimentos complementares. Uma marcação mais baixa, respeitando as áreas de tratamento, permitirá uma melhor cicatriz estética e um contorno corporal harmônico, além de uma adequada colocação dos elementos: cicatriz umbilical, púbis e extremidades laterais da cicatriz abdominal transversa.

Introduction: During the last few years, the surgical principles of abdominoplasty have remained unchanged. Therefore, many patients undergoing this technique have misalignment and high and straight transverse scars of the abdomen, with the final position of the umbilical scar being very close to the transverse scar, making the abdomen seem short. We propose modifying the basic concept of marking in abdominoplasty, because we believe it is important to position the transverse scar lower in the medial and pubic region and higher at the lateral ends, allowing anterior lumbar flap rotation in an inferomedial direction. Methods: We retrospectively analyzed 146 patients with abdominal defects and subjected them to lipo-mid-abdominoplasty, marking with strong upper concavity and guiding the sides of the scar towards the lower transverse line of the abdomen, 4 cm equidistant from the root of the thigh. We also define liposuction as a complementary treatment to body contouring. Results: We consider that midabdominoplasty parameters are applicable in most cases, obtaining satisfactory results both in patients with flatness and supraumbilical abdominal lipodystrophy and patients with an "apron" abdomen with considerable flaccidity and diastasis of the abdominal rectus. Conclusion: It is important to determine the area of the abdominal defect and its classification to establish treatment strategies and association with complementary procedures. A lower marking with respect to the treatment areas will allow a more aesthetic scar and a harmonic body contour as well as an adequate placement of the umbilical scar, pubis, and lateral ends of the transverse abdominal scar.

Effects of multi-directional oscillatory vibration in the treatment of cellulite and body remodeling / Efeitos da terapia vibro-oscilatória multidirecional no tratamento da celulite e remodelamento corporal

Abstract Introduction: Several technologies have been developed and optimized for the treatment of unaesthetic disorders. Among them is the oscillatory vibration therapy, a novel form of treatment based on the mechanical and physiological fundamentals of the vibration platform. Objective: The present study evaluated the efficacy of the oscillatory vibration therapy in the improvement of body contour remodeling and in the aspect of cellulite in women. Methods: This is a prospective longitudinal comparative study, in which the following evaluation tools are used: anthropometry, perimetry, adipometry, evaluation of skin viscoelasticity with Cutometer®, evaluation of the thickness of the hypodermis with diagnostic ultrasound and analysis of severity of cellulite (CSS). The evaluations occurred at the start and 1 week after the end of ten oscillatory vibration therapy. The results were analyzing using a paired student's t-test with interval confidence of 95% (PValue <0.05). Results: Thirty women took part in the research, with age of 33 ± 9 years, weight of 62 ± 11 kg, height of 1.66 ± 0.06 m, BMI of 22 ± 2 kg/m2. The measurements of perimetry, adipometry, analysis of subcutaneous tissue thickness by means of diagnostic ultrasound and analysis of skin viscoelasticity did not present significant alterations. However, the CSS variable of the right gluteus (7.3 ± 1.8 to 5.8 ± 1.6 ≤ 0.0001), left gluteus (7.2 ± 1.9 to 5.8 ± 1.6= 0.0001), right thigh (6.9 ± 1.9 to 5.6 ± 1.4 = 0.0004), left thigh (6.9 ± 1.9 to 5.6 ± 1.3 = 0.0004) and Celluqol® (59 ± 16 to 49 ± 16 = 0.022) presented significant difference. Conclusion: The multi-directional oscillatory vibration therapy is an effective and efficient therapy for the treatment of cellulite; however, for the treatment of body remodeling, it must be further evaluated and studied. (AU)

Introdução: Várias tecnologias vêm sendo desenvolvidas e otimizadas para o tratamento das afecções inestéticas. Dentre elas está a terapia vibro-oscilatória, uma nova forma de tratamento baseada na fundamentação mecânica e fisiológica da plataforma vibratória Objetivo: O presente estudo avaliou a eficácia da terapia vibro-oscilatória para melhora do remodelamento corporal e aspecto de celulite em mulheres. Métodos: Trata-se de um estudo clínico longitudinal prospectivo e comparativo, no qual se utilizaram as seguintes ferramentas de avaliação: antropometria, perímetria, adipometria, avaliação da viscoelasticidade da pele com Cutometer®, avaliação da espessura da hipoderme com ultrassom diagnóstico e análise da escala de severidade da celulite (CSS). As avaliações ocorreram no início e após 1 semana de término das dez sessões da terapia vibro-oscilatória. As análises estatísticas foram realizadas com o software Bioestat 5.0, utilizando o teste de normalidade de Lilliefor (P-valor > 0,05), teste paramétrico e teste T-Student da amostra pareada. Resultados: Trinta mulheres participaram da pesquisa, com média de idade de 33 ± 9 anos, peso médio de 62 ± 11 kg, altura média de 1,66 ± 0,06 metros, IMC médio de 22 ± 2 kg/m2 . As medidas de perímetria, adipometria, análise da espessura do tecido subcutâneo por meio de ultrassom diagnóstico e análise da viscoelasticidade da pele não apresentaram alterações significativas. Entretanto as variáveis de CSS glúteo direito (7,3 ± 1,8 para 5,8 ± 1,6 ≤ 0,0001), glúteo esquerdo (7, 2 ± 1,9 para 5,8 ± 1,6 = 0,0001), coxa direita (6,9 ± 1,9 para 5,6 ± 1,4 = 0,0004), coxa esquerda (6.9 ± 1,9 para 5,6 ± 1,3 = 0,0004) e Celluqol® (59 ± 16 para 49 ± 16 = 0,022), apresentaram diferença significativa. Conclusão: A terapia vibro-oscilatória multidirecional é uma terapia efetiva e eficaz para o tratamento da celulite, porém para o tratamento de remodelamento corporal ela deve ser mais bem avaliada e estudada. (AU)

Association of body image (dis)satisfaction and perception with food consumption according to the NOVA classification: Pró-Saúde Study.

The literature on body image and food consumption has generally focused on isolated food items, while overlooking the growing role of ultra-processed foods in the overall diet. The objective of this study was to assess the association of body image (dis)satisfaction and perception with food consumption, according to the NOVA classification, which takes into account the extent and purpose of industrial food processing. A silhouette scale developed considering the Brazilian adults' Body Mass Index was used to assess body image (dis)satisfaction and perception. Food consumption was evaluated using a Food Frequency Questionnaire, and its items were categorized into three groups: unprocessed or minimally-processed foods and culinary preparations; processed foods; ultra-processed foods. The association was assessed using linear regression models. A total of 514 of Brazilian university employees were evaluated. Women dissatisfied due to excess weight consumed less unprocessed or minimally-processed foods and culinary preparations (-6.6, 95% CI: -10.7; -2.5) and more ultra-processed foods (3.7, 95% CI: 0.1; 7.2) compared to satisfied. Women that overestimated their body size consumed less unprocessed or minimally-processed food and culinary preparations (-4.2, 95% CI: -7.3; -1.1), compared to those who had not distorted body image. Food consumption appears to be more strongly associated with body image (dis)satisfaction than with perception. An association was established between body image dissatisfaction and unhealthy eating habits. This relation deserves public health attention since it may contribute to the development of chronic diseases and reduce the quality of life and body image assessment could be adopted by nutritionists and other health professionals in their practice.

Avaliação da segurança no emprego do VASER® em cirurgia de lipoaspiração para melhora de contorno corporal / Evaluation of the safety of VASERTM in liposuction surgery to improve body contour

Introdução: A lipoaspiração tem sido submetida à evolução constante desde a sua consolidação e emprego sistemático. O auxílio de tecnologia ultrassônica de terceira geração, VASER® (Vibration Amplification of Sound Energy at Resonance), se destina a facilitar a execução da lipoaspiração e trazer maior segurança e resultados satisfatórios, especialmente na busca por maior definição e lipoaspiração superficial. Métodos: No período de 2015 a 2017, 76 pacientes foram submetidas à lipoaspiração para melhora de contorno corporal no Centro Hospitalar Santa Mônica em Erechim. Foram avaliados os resultados obtidos, as possíveis complicações e a segurança do emprego do VASER®. Resultados: A utilização rotineira do VASER® gera aperfeiçoamento de resultados em contorno corporal. A emulsificação gerada pelo dispositivo associada à lipoaspiração em diversos níveis permite uma maior definição e evidenciação dos marcos anatômicos. Conclusão: Lipoaspiração associada ao VASER® permite ao cirurgião plástico o refinamento de seus resultados com a preservação da segurança do paciente.

Introduction: Liposuction has been improved continuously since it was first introduced. The third-generation ultrasound technology VASERTM (Vibration Amplification of Sound Energy at Resonance) facilitates liposuction, providing improved safety and satisfactory results, especially in the search for greater definition and superficial liposuction. Methods: From 2015 to 2017, 76 patients underwent liposuction to improve their body contour at the Santa Monica Hospital Center in Erechim, Rio Grande do Sul, Brazil. The results, complications, and the safety of VASERTM were evaluated. Results: The routine use of VASERTM improves body contour. The emulsification generated by the device, along with liposuction, resulted in greater definition and revelation of the anatomical landmarks. Conclusion: Liposuction associated with VASERTM allows plastic surgeons to refine the results better while ensuring patient safety is maintained.

Dose distribution comparison in volumetric-modulated arc therapy plans for head and neck cancers with and without an external body contour extended technique.

AIM: This study compared volumetric-modulated arc therapy (VMAT) plans for head and neck cancers with and without an external body contour extended technique (EBCT). BACKGROUND: Dose calculation algorisms for VMAT have limitations in the buildup region. MATERIALS AND METHODS: Three VMAT plans were enrolled, with one case having a metal artifact from an artificial tooth. The proper dose was calculated using Eclipse version 11.0. The body contours were extended 2 cm outward from the skin surface in three-dimensional space, and the dose was recalculated with an anisotropic analytical algorithm (AAA) and Acuros XB (AXB). Monitor units (MUs) were set, and the dose distributions in the planning target volume (PTV), clinical target volume, and organ at risk (OAR) and conformity index (CI) with and without an EBCT were compared. The influence of a metal artifact outside of the thermoplastic head mask was also compared. RESULTS: The coverage of PTV by the 95% dose line near the patient's skin was increased drastically by using an EBCT. Plan renormalization had a negligible impact on MUs and doses delivered to OARs. CI of PTV with a 6-MV photon beam was closer to 1 than that with a 10-MV photon beam when both AAA and AXB were used in all cases. Metal artifacts outside the head mask had no effect on dose distribution. CONCLUSIONS: An EBCT is needed to estimate the proper dose at object volumes near the patient's skin and can improve the accuracy of the calculated dose at target volumes.

Avaliação do emprego da técnica universal para mastoplastias marcação única de Pessoa em um serviço de ensino de Cirurgia Plástica / Effectiveness of Pessoa's universal technique for single marking in mastoplasty performed while training plastic surgeons

Introdução: A mamoplastia redutora é ainda um procedimento que desafia o cirurgião plástico. O objetivo é demonstrar os resultados no tratamento de variados graus de hipertrofia e ptose mamária utilizando-se a técnica de Marcação Única, proposta por Pessoa, durante o treinamento de novos cirurgiões plásticos. Métodos: Coorte retrospectivo de 95 pacientes submetidas à mamoplastia redutora pela técnica de Pessoa. Incluídas pacientes com ptose, hipertrofia, gigantomastia e/ou assimetria das mamas. Os procedimentos foram realizados por residentes do primeiro, segundo e terceiro ano. Como fatores de exclusão foram usados: distúrbios psicológicos, obesidade mórbida e/ou pacientes com indicação de implante de prótese sem redução de pele e/ou aréola. Foram avaliados a idade, sexo, volume resultante, grau de satisfação, complicações e dificuldades dos residentes para realização do procedimento cirúrgico. Resultados: Todas as pacientes do sexo feminino, com idade entre 21 e 61 anos. 90,53% das pacientes declararam-se muito satisfeitas, 5,26% satisfeitas, 3,16% pouco satisfeitas e 1,05% insatisfeita. Como complicações, foram observadas necrose de complexo areolopapilar (1,05%), epidermólise (11,58%) e deiscência de sutura (9,47%). As dificuldades encontradas pelos residentes, dependendo da etapa do procedimento cirúrgico, variaram entre 11,1% e 55,6%. Conclusões: Verificou-se alto grau de satisfação tanto da parte das pacientes quanto dos residentes envolvidos. Os resultados encontrados confirmam a efetividade da técnica no treinamento de residentes.

Introduction: Reduction mastoplasty is still a challenging procedure for plastic surgeons. The Objective is to show the results of the treatment of different degrees of breast hypertrophy using Pessoa's single marking technique performed while training plastic surgeons. Methods: A retrospective cohort of 95 patients underwent reduction mastoplasty using Pessoa's technique. The cohort included patients with breast ptosis, hypertrophy, gigantomastia, and/ or breast asymmetry. The procedures were performed by first-, second-, and third-year residents. The exclusion criteria were psychological disorders, morbid obesity, and/or indication for prosthesis implantation without skin and/or areola reduction. The analyzed factors were age, sex, final size, patient's degree of satisfaction, complications, and difficulties experienced by the residents in performing the surgery. Results: All patients were women aged between 21 and 61 years. Of the patients, 90.53% reported being very satisfied; 5.26%, satisfied; 3.16%, poorly satisfied; and 1.05%, dissatisfied. The complications observed were necrosis of the nipple-areola complex (1.05%), epidermolysis (11.58%), and suture dehiscence (9.47%). The rate of difficulty experienced by the residents varied between 11.1% and 55.6%, depending on the step of the surgical procedure. Conclusions: A high degree of satisfaction was reported by both the patients and residents. The results confirm the effectiveness of the technique while training residents.

Dosimetric effect of body contour changes for prostate and head and neck volumetric modulated arc therapy plans.

Body contour changes are commonly seen in prostate and head and neck (H&N) patients undergoing volumetric modulated arc therapy (VMAT) treatments, which may cause a discrepancy between the planned dose and the delivered dose. Dosimetrists, radiation oncologists or medical physicists sometimes are required to visually assess the dosimetric impact of body contour changes and make a judgment call on whether further re-assessment of the plan is needed. However, an intuitive judgment cannot always be made in a timely manner due to the complexity of VMAT plans as well as the complicated forms of body contour changes. This study evaluated the dosimetric effect of body contour changes for prostate and H&N patients to help with clinical decision-making. By analyzing the one-dimensional spatial dose profiles from the original body and the body with different body contour deformations, rules of thumb for dose percentage change and isodose line shift due to body contour changes were ascertained. Moreover, based on dose distribution comparison using three-dimensional gamma analysis, the response of the clinical prostate and H&N VMAT plans to body contour changes was assessed. Within center specific dose deviation tolerances, prostate patients who had less than 2 cm single side body contour change or less than 1 cm uniform body contour change were unlikely to need plan re-assessment; H&N VMAT plans with less than 1 cm uniform body contour change or less than 1 cm shoulder superior-inferior positional change were also unlikely to trigger further evaluation. Dose percentage change and isodose line shift were considered independently from the problem of volume changes in this study, but clinically, both aspects must be considered.

Prevention and management of complications in body contouring surgery.

This patient safety article discusses strategies to prevent, diagnose, and manage complications from body contouring surgery. Preoperative, intraoperative, and postoperative approaches to avoiding, identifying, and treating complications are addressed. Individual complications, such as hematoma, seroma, infection, dehiscence, suture extrusion, deep venous thrombosis, and pulmonary embolism are discussed and a review of complication rates in the body contouring literature is provided. The article addresses procedure-specific complications and pearls to avoiding complications in these cases. Difficult problems such as skin relaxation and management of the disappointed patient are also discussed.

Mamoplastia após grande perda ponderal / Mammoplasty after massive weight loss

INTRODUÇÃO: Após perda ponderal maciça, as pacientes apresentam alterações mamárias, como flacidez, ptose em graus variados e polo superior vazio. Diferentes técnicas de mamoplastia são empregadas para dar forma ao cone mamário e reposicionar o complexo aréolo-papilar (CAP). Neste trabalho, avaliamos diferentes abordagens cirúrgicas preenchendo as necessidades de cada caso. MÉTODO: Vinte e cinco pacientes submetidas à gastroplastia antes da mamoplastia foram analisadas. As técnicas utilizadas foram (1) mastopexia sem prótese e retalho inferior; (2) mastopexia sem prótese e pedículo areolado inferior; (3) mastopexia com prótese com cobertura pelo retalho inferior; (4) mastopexia com prótese com plicatura de retalhos cruzados (jaquetão). RESULTADOS: A média do IMC antes da mamoplastia foi de 26,6 (variando de 21,6 a 31,2). Todas as pacientes submetidas à cirurgia consideraram o resultado bom ou ótimo. Em avaliação por observador cego às técnicas empregadas, os resultados foram considerados bons com relação à forma da mama, correção da ptose e preenchimento do polo superior. Uma paciente submetida à mastopexia com prótese com retalhos cruzados apresentou seroma e contratura capsular subsequente, necessitando capsulectomia. Oito pacientes apresentaram deiscências: sete, na junção dos retalhos cutâneos no sulco inframamário, e uma na vertical, unilateralmente, resolvidas por cicatrização por segunda intenção. Não houve caso de necrose ou epiteliólise do CAP. CONCLUSÃO: Empregando-se diferentes técnicas de mamoplastia, individualizadas caso a caso, foram obtidos resultados agradáveis, alcançando satisfação das pacientes. Fatores, como distância fúrcula-papila, necessidade de elevação do CAP, volume mamário pré-mamoplastia e desejo de aumento de volume pela paciente, influenciam a escolha da técnica cirúrgica.

INTRODUCTION: After massive weight loss, patients present with various mammary changes, such as sagging, different grades of ptosis, and empty upper pole. Different mammoplasty techniques are used to shape the mammary cone and to reposition the nipple-areolar complex (NAC). In this study, we evaluate how different surgical approaches can satisfy the requirements of each patient. METHOD: Twenty-five patients who underwent mammoplasty following gastroplasty were analyzed. The mammoplasty techniques used were (1) mastopexy without implant with inferior flap; (2) mastopexy without implant with inferior areolar pedicle; (3) mastopexy with implant and coverage by inferior flap; (4) mastopexy with implant and plication of cross flaps (jacket procedure). RESULTS: The average body mass index (BMI) before mammoplasty was 26.6 (ranging from 21.6 to 31.2). All patients who underwent this surgery rated the outcome obtained as good or great. In an evaluation carried out by an observer unaware of the techniques employed, the results obtained were considered to be satisfactory for breast shape, correction of breast ptosis, and filling of the upper pole. One patient who underwent mastopexy with implants and cross flaps developed seroma and subsequent capsular contracture, which required capsulectomy. Eight patients developed unilateral dehiscence: seven at the junction of skin flap in the inframammary fold, and one vertically, which were resolved with healing by secondary intention. No cases of necrosis or NAC epitheliosis were observed. CONCLUSION: Using different mammoplasty techniques, which were personalized and analyzed on a case-by-case basis, good outcomes and a high level of patient satisfaction were achieved. Various factors, such as the furcula-papilla distance, the need to lift the NAC, pre-mammoplasty breast volume and the patient's desire to increase breast volume, influence the choice of the surgical technique.

A volumetric approach to path-length measurements is essential when treating radiotherapy with modulated beams.

The established dosimetric benefits of intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy have lead to their increased use in prostate radiotherapy. Complimenting these techniques, volumetric image guidance has supported increased positional accuracy. In addition, 3-dimensional image guidance has also allowed for assessment of potential dosimetric variation that can be attributed to a deformation of either internal or external structures, such as rectal distension or body contour. Compounding these issues is the variation of tissue density through which the new field position passes and also the variation of dose across a modulated beam. Despite the growing level of interest in this area, there are only a limited number of articles that examine the effect of a variation in beam path length, particularly across a modulated field. IMRT and volumetric-modulated radiation therapy (VMAT) fields are dynamic in nature, and the dose gradient within these fields is variable. Assessment of variation of path length away from the beam׳s central axis and across the entire field is vital where there is considerable variation of dose within the field, such as IMRT and VMAT. In these cases, reliance on the traditional central axis to focus skin distances is no longer appropriate. This article discusses these more subtle challenges that may have a significant clinical effect if left unrecognized and undervalued.

Scatterogram: a method for outlining the body during lymphoscintigraphy without using external flood source.

BACKGROUND: We evaluated the feasibility of outlining the body with scattered photons using a low dose intradermal injection of the radiotracer. PATIENTS AND METHODS.: Sixty breast cancer patients were included into the study. 30 minutes post radiotracer injection static lymphoscintigraphy images were acquired using low energy high resolution collimator in anterior and lateral views. For patients with 2-day protocol another set of images was taken 20 hours post-injection. Two photopeaks were used during imaging: 1-Tc-99m (130-150 keV) and 2- Scatter photons (60-120). The fusion image of these two images was constructed by NM-NM fusion workflow of the workstation. The usual body outline of the patients was also acquired in 20 cases using the external flood source without moving the patients from their positions. RESULTS: The early (30 minute image) scatterograms of the patients clearly showed the contour of the body. The 20 hour scatterograms were not as high quality as the corresponding early images. The constructed overlaid images showed the location of the axillary sentinel nodes and the body contours clearly for early scatterograms but not the delayed (20 hour) ones. The processing of the images for the reconstruction of overlaid scatterograms took the mean time of 10±5 seconds. CONCLUSIONS: Imaging the scattered photons is feasible for the intradermal low dose injection of the radiotracers in order to outline the body contour. This imaging method does not increase the radiation exposure of the patients or operators and does not extend the time of imaging either.

Gigantomastia secundaria a inyección de aceite mineral: Reporte de un caso

La utilización de inyección de materiales ilícitos para mejoramiento del contorno corporal sigue siendo un problema de salud frecuente en nuestro País; los más utilizados son los materiales oleosos que en muchos de los pacientes pueden ocasionar complicaciones estéticas y funcionales incapacitantes. Se reporta el caso de un paciente hombre homosexual de 32 años a quien se le inyectó 80 cc de aceite mineral en cada mama lo que ocasionó reacción inflamatoria importante de las mismas con aparente buen estado general, se trató satisfactoriamente con mastectomía subcutánea bilateral e injerto libre del complejo areola pezón. Consideramos que esta patología sigue siendo un problema de salud frecuente lo cual debería de alertar a las autoridades de salud para crear medidas preventivas de su realización.

Use injections of illicit material to improve body contour is still a health problem in Mexico. Most commonly used are oily materials that in many patients may cause aesthetic and incapacitating functional complications. The case of a 32-year-old homosexual male patient is reported; he was injected with 80 cc of mineral oil in each mamma, which caused an important inflammatory reaction, growth, and severe ptosis of these. He was in apparent general good shape; thus, he was treated with bilateral subcutaneous mastectomy and free full-thickness nipple-areola complex graft. We consider that this pathology remains a current health problem that should alert health authorities to take preventive measures with regard to its administration.