Imaging diagnosis, pathological upgrade, and imaging technology progress of ductal carcinoma in situ of the breast / 国际肿瘤学杂志

Ductal carcinoma in situ of the breast (DCIS) most commonly manifests as asymptomatic calcifications at mammography. The most common manifestation of MRI is nonmass enhancement. The ultrasound mainly presents as a hypoechoic irregular hypervascular mass without posterior features. Core-needle biopsy is a commonly used method for preoperative diagnosis of DCIS. Due to differences in needle type and sample size, there is a certain degree of pathological upgrading of the lesion. In recent years, there has been controversy over the diagnosis and treatment of DCIS. With the development of breast disease diagnostic technology, advances in digital breast tomography, artificial intelligence, and radiomics are expected to help DCIS management and address issues such as overdiagnosis.

Longitudinal evaluation of RTVue optical coherence tomography in patients with glaucoma and suspected glaucoma and stable visual fields / Avaliação longitudinal da tomografia de coerência óptica RTVue em pacientes glaucomatosos e suspeitos de glaucoma com campos visuais estáveis

ABSTRACT Purpose: To longitudinally compare isolated structural parameters obtained using RTVue optical coherence tomography in patients with glaucoma and suspected glaucoma with stable visual fields. Methods: All patients were required to have a reliable SITA Standard 24-2 Humphrey Visual Field test. Visual field stability was defined as having <5 points with p<5% and/or having no points with p<1% and/or p<0.05% in the glaucoma progression analysis comparison graph. Furthermore, the glaucoma assessment strategy was used in optical coherence tomography. Results: The study included 75 eyes from 75 patients, 43 of which had glaucoma and 32 had suspected glaucoma. The mean visual field intervals were 29.57 ± 9.65 months between the first and third tests. No visual field parameter variations (mean deviation, pattern standard deviation, and visual field index) and no retinal nerve fiber layer or optic disk parameter variations between the first and third tests were observed (p>0.05 for all), and no retinal nerve fiber layer parameter variations throughout the study were observed, except for optic disk parameters presenting with cup volume changes (p=0.004). However, ganglion complex cells presented a progressively decreased average ganglion cell complex parameter, with a variability of -0.98% ± 3.71% (p=0.04) between the first and third tests. By contrast, the global loss volume progressively increased throughout the study, with a variability of 14.71% ± 44.52% (p=0.04) between the first and third tests. The inferior ganglion cell complex parameter was significantly decreased between the first and third tests (p=0.02). Conclusion: The present findings suggest that patients with glaucoma or suspected glaucoma with stable visual fields may present structural ganglion complex cell progression as assessed using RTVue optical coherence tomography.

RESUMO Objetivo: Comparar longitudinalmente os parâmetros estruturais isolados obtidos através da tomografia de coerência óptica RTVue em pacientes glaucomatosos e suspeitos de glaucoma com campos visuais estáveis. Métodos: Todos os incluídos deveriam ter Campimetria Computadorizada Humphrey Sita Standard 24-2 confiáveis. A estabilidade campimétrica foi definida se apresentassem menos de cinco pontos com p<5% e/ou nenhum ponto com p<1% e/ou p<0,05% no gráfico de comparação do Glaucoma Progression Analysis. Para a tomografia de coerência óptica, foi utilizado a estratégia de avaliação para glaucoma. Resultados: Foram incluídos 75 olhos de 75 pacientes: 43 com glaucoma e 32 suspeitos. A média dos intervalos do campo visual entre o 1o e 3o exame, foi de 29,57 ± 9,65 meses. Não houve variação para os parâmetros do campo visual (desvio médio, desvio padrão e índice da função visual) entre o primeiro e o último exame (p>0,05 para todos). Não houve variação dos parâmetros da camada de fibras nervosas da retina ao longo do estudo, enquanto que para os parâmetros do disco óptico, apenas cup volume apresentou mudança (p=0,004). Em relação à camada de células ganglionares da retina, notou-se uma redução progressiva na espessura média da Ganglionar Complex Cells com uma variabilidade entre o primeiro e último exame de -0,98 ± 3,71% (p=0,04). Quanto ao Global loss volume, houve um aumento progressivo ao longo do estudo com uma variabilidade entre o primeiro e último exame de 14,71 ± 44,52% (p=0,04). O parâmetro inferior do Ganglionar Complex Cells também reduziu significativamente entre o 1o e 3o exames (p=0,02). Os demais parâmetros da tomografia de coerência óptica RTVue se mantiveram estáveis entre o 1o e 3o exames. Conclusão: Os presentes achados sugerem que pacientes glaucomatosos ou com suspeita de glaucoma e com campos visuais estáveis, podem apresentar progressão estrutural na camada de células ganglionares da retina avaliada por meio da tomografia de coerência óptica RTVue.

Carcinoma basocelular de la piel cabelluda tratado con HeberFERON. Seguimiento clínico, ecográfico e histopatológico

Fundamento: El carcinoma basocelular es infrecuente en la piel cabelluda. Es un tumor de invasión local y crecimiento lento, puede ser agresivo, destruir tejidos vecinos, causar ulceración e invadir en profundidad cartílago y hueso. Objetivo: Evaluar los resultados de la aplicación del HeberFERON y el seguimiento con ecografía cutánea en pacientes con carcinoma basocelular en la piel cabelluda. Metodología: Se realizó un estudio observacional, descriptivo y longitudinal en una serie de casos con diagnóstico de carcinoma basocelular de la piel cabelluda en el Policlínico Centro de la ciudad Sancti Spíritus, durante el período de 10 de julio del 2018 a 29 de julio del 2022. Se incluyeron 6 casos. Las variables estudiadas fueron la respuesta al tratamiento mediante la clínica, la ecografía cutánea e histopatología y presencia de eventos adversos. Resultados: Predominó el sexo masculino, subtipo histológico sólido, subtipo clínico nódulo ulcerativo, tamaño del tumor mayor de 30 mm y tiempo de evolución de más de 12 meses; la respuesta al tratamiento en la mayoría de los casos fue parcial. Los eventos adversos fueron dolor y ardor en el sitio de inyección, fiebre, edema y eritema perilesional. Conclusiones: El HeberFERON resultó de utilidad en los pacientes con carcinoma basocelular del cuero cabelludo ya que redujo el tumor en unos casos y en otros lo eliminó. La ecografía permitió la evaluación en tiempo real de la neoplasia; los eventos adversos más frecuentes fueron la fiebre y el dolor en el sitio de inyección, a pesar de ello ningún paciente abandonó el tratamiento.

Background: Basal cell carcinoma is uncommon in the scalp. It is a slow-growing locally invasive tumor, it can be aggressive in destroying neighboring tissues, cause ulceration and invade deep into the cartilage and bone. Objective: To evaluate the results of HeberFERON application and follow-up with cutaneous echographical in patients with scalp basal cell carcinoma. Methodology: An observational, descriptive and longitudinal study was conducted in a series of cases diagnosed with scalp basal cell carcinoma at the Center Polyclinic in Sancti Spíritus city during the period from July 10, 2018 to July 29, 2022. Six clinical cases were included. The studied variables were the answer to the treatment by clinical, cutaneous echographical and histopathology and the presence of adverse events. Results: Male sex predominated, solid histologic subtype, clinical subtype ulcerative nodule, tumor size greater than 30 mm and evolution time of over 12 months; the treatment response in most cases was partial; adverse events were pain and burning at the injection site, fever, edema and perilesional erythema. Conclusion: It was observed that in patients with scalp basal cell carcinoma, the HeberFERON treatment reduced in some cases and eliminated the tumor in others. Echography allowed real-time evaluation of the neoplasm, fever and pain at the injection site were the most frequent adverse events. In spite of this, none of the patients abandoned the therapy.

Diagnóstico tomográfico en pacientes con COVID-19, guía de observación y reporte

La expansión de la pandemia de COVID-19 incrementó el interés en la utilidad y pertinencia del diagnóstico por imágenes en el manejo de pacientes sospechosos o confirmados. El trabajo pretende comunicar elementos para facilitar la interpretación de la información ofrecida por la tomografía computarizada y brindar una guía básica, a partir de los hallazgos observados en 1622 pacientes, para el análisis de las imágenes tomográficas. Se realizó una revisión, análisis crítico y sistematización de la información encontrada a partir de una búsqueda en las bases de datos y motores Medline, Epistemonikos, LibreOffice Base, Microsoft Academic, ClinicalKey, Science Research y MedNar con el criterio: imagen en SARS-CoV-2 (COVID-19), en inglés y español. En COVID-19 no todo es opacidad en vidrio esmerilado. Si bien son las lesiones más observadas, se resalta, como característico, la distribución de las mismas predominantemente periféricas, multifocales, bilaterales, posteriores y con una tendencia a la asimetría; más tarde, en la evolución, seguiría el patrón en empedrado. Este y otros hallazgos menos frecuentes pueden ser encontrados en alguna fase del curso de la enfermedad. En el trabajo se propone una guía de observación para la correcta interpretación de la tomografía del paciente con COVID-19.

The spread of COVID-19 pandemics increased interest in the usefulness and pertinence of imaging diagnosis in the management of suspected or confirmed patients. This work aims to communicate elements to facilitate the interpretation of the information offered by computed tomography and provide a basic guide, based on the findings observed in 1622 patients, for the analysis of tomographic images. A review, critical analysis and systematization of the information―found from a search in Medline, Epistemonikos, LibreOffice Base, Microsoft Academic, ClinicalKey, Science Research y MedNar databases and engines―was carried out, with the criterion: image in SARS-CoV-2 (COVID-19), in English and Spanish. In COVID-19 not everything is opacity in ground glass. Although they are the most observed lesions, their distribution predominantly peripheral, multifocal, bilateral; posterior and with a tendency to asymmetry is highlighted as characteristic; later, in the evolution, they will follow the crazy paving pattern. This and other less frequent patterns may be found at some stage in the course of the disease. An observation guide for the correct interpretation of the tomographic imaging of patients with COVID-19 is proposed in the work.

Biometría fetal en la confirmación de restricciones del crecimiento intrauterino / Fetal Biometrics in Confirming Restrictions of Intrauterine Growth

Introducción: El crecimiento y el desarrollo son fenómenos biológicos que implican aumento de masa celular y diferenciación de forma o función, respectivamente. En beneficio del diagnóstico, se utilizan las bondades del ultrasonido en la evolución biométrica del crecimiento fetal. Objetivo: Determinar mensuraciones biométricas fetales más asociadas a la restricción del crecimiento fetal en infantes que sufrieron restricción del crecimiento intrauterino. Métodos: Se realizó un estudio longitudinal descriptivo y retrospectivo de gestantes captadas en dos áreas de salud del municipio Santa Clara, que terminaron su embarazo entre septiembre del 2013 y octubre del 2018 y cuyos recién nacidos experimentaron restricción del crecimiento. La muestra se clasificó al nacimiento en pequeños y adecuados, según condición trófica y en cada grupo se estudió relación con valores percentilares de variables biométricas en los dos últimos trimestres. Resultados: Predominaron en todas las biometrías y en los dos trimestres los valores por debajo del décimo percentil. En la totalidad de los infantes y durante todo el período fetal, la circunferencia abdominal estuvo por debajo del percentil 10. En las variables largo del fémur y circunferencia cefálica los percentiles más altos se encontraron en el tercer trimestre y desde el segundo en la variable diámetro biparietal, posiblemente relacionado con restricciones asimétricas del crecimiento. Conclusiones: La variable biométrica circunferencia abdominal desde el segundo trimestre es fiable en la detección de restricciones del crecimiento intrauterino y su existencia por debajo del décimo percentil debe servir como certeza de su existencia, aun cuando la condición trófica del recién nacido parezca revelar otra realidad(AU)

Introduction: Growth and development are biological phenomenons involving cell mass increase and differentiation of form or function, respectively. For diagnostic purposes, the benefits of ultrasound are used for the biometric evolution of fetal growth. Objective: To determine fetal biometric measurements mostly associated with fetal growth restriction in infants who suffered intrauterine growth restriction. Methods: A descriptive and retrospective longitudinal study was carried out with pregnant women from two health areas of Santa Clara Municipality, who finished their pregnancy between September 2013 and October 2018 and whose newborns experienced growth restriction. The sample was classified at birth into small and adequate, according to trophic condition; and, in each group, the relationship with percentile values of biometric variables in the last two trimesters was studied. Results: Values below the tenth percentile predominated in all biometrics and in the two trimesters. In all infants and during the whole fetal period, abdominal circumference was below the tenth percentile. In the variables femur length and cephalic circumference, the highest percentiles were found in the third trimester; while, from the second trimester on, the same occurred in the variable biparietal diameter, possibly related to asymmetric growth restrictions. Conclusions: The biometric variable abdominal circumference is, from the second trimester on, reliable in the detection of intrauterine growth restrictions; its existence below the tenth percentile should serve as certainty of its existence, even when the trophic condition of the newborn seems to reveal another reality(AU)

Imaging analysis and clinical follow-up of Ewing sarcoma of bone / 中国医师进修杂志

Objective:To analyze and summarize the imaging characteristics and clinical follow-up results of Ewing sarcoma of bone.Methods:The imaging data of 23 patients with Ewing sarcoma confirmed by pathology who treatment in Drum Tower Hospital Affiliated to Nanjing University School of Medicine from May 2010 to October 2021 were retrospectively analyzed, and clinical follow-up was performed.Results:Of the 23 patients with Ewing sarcoma of the bone in this group, a total of 18 patients had follow-up results and 5 cases were lost to follow-up. Of the 18 cases, 6 cases died and 12 cases survived. The main cause of death was lung metastasis. There were 27 lesions in total, femoral diaphysis was the most common site of the disease; bone structure destruction and soft tissue mass shadows could be seen in the images of each lesion. Periosteal reaction could be seen in most of the lesions (92.59%, 25/27). There were certain differences in signs of bone destruction and periosteal reaction between different bone types.Conclusions:The imaging of Ewing sarcoma of bone mainly manifests various types of bone destruction, soft tissue masses and periosteal reactions. Ewing sarcoma of bone is mainly bone marrow metastasis and lung metastasis, and lung metastasis is the main cause of death.

The application of blended learning in clinical practice of college students majoring in medical imaging diagnosis / 中华医学教育探索杂志

Objective:To explore the application effect of blended learning in clinical practice of undergraduate students majoring in medical imaging diagnosis.Methods:A total of 60 undergraduate students majoring in medical imaging diagnosis who practiced in the Department of Radiology of Chongqing General Hospital from 2017 to 2019 were selected as subjects. The students were divided into experimental group and control group, each with 30 students. During the internship, the experimental group adopted the blended learning, including lecture-based learning, case-based learning, problem-based learning and team-based learning according to different teaching scenarios. While the control group adopted the traditional teaching mode. At the end of the internship, the test scores of the two groups of intern students were compared, and the satisfaction degree of the teaching was investigated by questionnaire. SPSS 19.0 was used to conduct t-test and Chi-square test. Results:The score of theoretical knowledge examination in the experimental group was (90.27±5.38) points, and that in the control group was (83.13±7.57) points. The difference between the two groups was statistically significant ( t=4.21, P<0.001). The score of imaging analysis examination in the experimental group was (90.07 ± 4.80) points, and that in the control group was (82.13±8.71) points. The difference between the two groups was statistically significant ( t=4.37, P<0.001). The results of the satisfaction survey showed that the overall satisfaction with teaching was 76.7% (23/30) in the experimental group and 50.0% (15/30) in the control group, with statistically significant difference ( χ2= 6.57, P=0.037). Conclusion:The blended learning has a good effect in the teaching of undergraduate students majoring in medical imaging diagnosis.

Application and prospect of machine learning in orthopaedic trauma / 中国修复重建外科杂志

OBJECTIVE@#To review the current applications of machine learning in orthopaedic trauma and anticipate its future role in clinical practice.@*METHODS@#A comprehensive literature review was conducted to assess the status of machine learning algorithms in orthopaedic trauma research, both nationally and internationally.@*RESULTS@#The rapid advancement of computer data processing and the growing convergence of medicine and industry have led to the widespread utilization of artificial intelligence in healthcare. Currently, machine learning plays a significant role in orthopaedic trauma, demonstrating high performance and accuracy in various areas including fracture image recognition, diagnosis stratification, clinical decision-making, evaluation, perioperative considerations, and prognostic risk prediction. Nevertheless, challenges persist in the development and clinical implementation of machine learning. These include limited database samples, model interpretation difficulties, and universality and individualisation variations.@*CONCLUSION@#The expansion of clinical sample sizes and enhancements in algorithm performance hold significant promise for the extensive application of machine learning in supporting orthopaedic trauma diagnosis, guiding decision-making, devising individualized medical strategies, and optimizing the allocation of clinical resources.

Philosophical thinking in medical image diagnosis / 中华医学教育探索杂志

Medical imaging is an important auxiliary means of disease diagnosis. In the process of diagnosis, diseases are usually presented in a static way, which is one of the characteristics of imaging diagnosis. However, this static representation of diseases imposes certain limitations, which can, to some extent, lead to the loss of medical humanities. Therefore, it is very important for imaging diagnostic doctors to correctly use philosophical thinking to understand, analyze, and solve problems. The reinforcement of philosophical thinking in imaging diagnosis entails commitment to the "patient-centered" perspective in medicine as well as the integration of comprehensiveness, regularity, and proactivity. This not only effectively trains the diagnostic thinking of imaging diagnostic doctors but also improves their humanistic quality, thereby addressing the problems associated with these limitations. This allows the diagnosis to be both technically accurate and emotionally attuned.

Recent advance in TDP-43 proteinopathy in diagnosing and treating Alzheimer's disease / 中华神经医学杂志

The important role of TDP-43 proteinopathy in Alzheimer's disease (AD) has been gradually revealed. High proportion of AD patients have TDP-43 proteinopathy on their postmortem diagnosis. Patients with TDP-43 proteinopathy show more sever hippocampal atrophy and cognitive dysfunction, suggesting that TDP-43 proteinopathy can serve as an important target in AD diagnosis and treatment. Evaluation of TDP-43 proteinopathy in vivo would hold great promise in AD diagnosis, drug development and treatment. In this review, we describe the pathological characteristics of TDP-43 proteinopathy in AD, and summarize the recent progress of TDP-43 proteinopathy in the diagnosis and treatment of AD.

Uso de protocolos de examen radiográfico para la evaluación diagnóstica de la osteogénesis imperfecta / Use of radiographic examination protocols for diagnostic evaluation of osteogenesis imperfecta

RESUMEN La osteogénesis imperfecta (OI), también conocida como enfermedad de los huesos de cristal, es una enfermedad rara, causada principalmente por mutaciones en los genes COL1A1 y COL1A2. Aunque el 85-90% de los eventos son causados por mutaciones en el propio colágeno, las formas recesivas pueden ser el resultado de otros defectos. Dado que pueden ocurrir hallazgos similares entre la OI y otras enfermedades, es necesario un diagnóstico diferencial para una adopción más rápida de los tratamientos apropiados. Debido a la necesidad constante de exámenes, estos pacientes tienen más probabilidades de tener complicaciones por la radiación ionizante, por lo que es muy importante cumplir estrictamente con todos los requisitos de protección radiológica. OBJETIVO Verificar la existencia de protocolos de imagen utilizados en el diagnóstico de la OI y describir las técnicas radiográficas involucradas en el proceso. METODOLOGIA Se trata de un estudio cualitativo en el que se utilizaron las revistas PubMed, BIREME, CAPES y ScienceDirect, con el objetivo de verificar la presencia de investigaciones dirigidas a la creación de protocolos de imagen para auxiliar el diagnóstico de la OI. CONSIDERACIONES FINALES: Si bien ha demostrado ser de gran utilidad, debido a los riesgos a los que están expuestos los pacientes con OI, el uso de herramientas que liberan radiaciones ionizantes debe ser monitoreado constantemente. Por lo tanto, los protocolos deben revisarse para que, incluso con una reducción de la dosis, no se pierda la resolución y el detalle de la imagen.

ABSTRACT: The osteogenesis imperfecta (OI), also known as brittle bone disease, is a rare disease, mainly caused by mutations in genes COL1A1 and COL1A2. Although 85-90% of events are caused by mutations in collagen itself, the recessive forms may be the result of other defects. Since similar findings may occur between OI and other diseases, a differential diagnosis is required for faster adoption of appropriate treatments. Due to the constant need for tests, these patients are more likely to have complications due to ionizing radiation, so it is very important to strictly comply with all radiological protection requirements. OBJETIVO To verify the existence of imaging protocols used in the diagnosis of OI and to describe the radiographic techniques involved in the process. METHODOLOGY This is a qualitative study in which PubMed, BIREME, CAPES y ScienceDirect databases were used, with the objective of verifying the presence of research aimed at the creation of imaging protocols to assist in the diagnosis of OI. FINAL CONSIDERATIONS Although it has proved very useful, because of the risks to which patients with OI are exposed, the use of tools that release ionizing radiation should be monitored constantly. With this, the protocols should be reviewed so that even with a dose reduction, the resolution and detail of the image are not lost

Modified amoebic liver abscess: Case report / Absceso hepático amebiano modificado: reporte de un caso

Abstract We present the case of a 56-year-old black female patient from a rural area in the Morón municipality, Ciego de Ávila province, Cuba. She was admitted with symptoms of dysentery with several days of evolution and a later episode of high fever, compromised general status, and abdominal pain located in the right hypochondrium. Analytical studies reported leukocytosis with a predominance of polymorphonuclear cells, Entamoeba histolytica was found in the stool study. Abdominal ultrasound reported a mixed image of 110 x 84 mm in the upper right lobe of the liver, as confirmed by computed tomography. This image was interpreted as a possible liver abscess. The patient received antimicrobial treatment for four weeks without a good response, thus requiring surgical intervention. She evolved favorably and was discharged after 21 days.

Resumen Se presenta el caso de una paciente de raza negra de 56 años procedente de área rural de Morón, provincia Ciego de Ávila (Cuba), quien ingresa por cuadro clínico de disentería de varios días de evolución acompañado de fiebre, compromiso de su estado general y dolor abdominal en el hipocondrio derecho. Los estudios analíticos de laboratorio mostraron leucocitosis con predominio de neutrófilos y presencia de trofozoitos de Entamoeba histolytica en la materia fecal. La ecografía de abdomen reporto una imagen mixta de 110 x 84 mm en el lóbulo derecho del hígado y la tomografía confirmó la lesión que se interpretó como un posible absceso hepático. Se inició tratamiento antimicrobiano por un periodo de 4 semanas sin adecuada respuesta por lo que requirió tratamiento quirúrgico. Su evolución fue favorable con egreso a los 21 días.

Características clínico quirúrgicas de los pacientes con trauma cerrado de abdomen / Clinical-Surgical Characteristics of Patients with Blunt Abdominal Trauma

Introducción: El traumatismo abdominal cerrado puede provocar lesiones orgánicas graves con hemorragias que demandan un tratamiento quirúrgico emergente y es la principal causa de muertes evitables en todos los grupos de edad. Objetivo: Evaluar las características clínico quirúrgicas de los pacientes con trauma cerrado de abdomen. Métodos: Se realizó un estudio observacional descriptivo y retrospectivo para evaluar el comportamiento del trauma cerrado de abdomen en 81 pacientes atendidos en el Hospital General Provincial Docente "Roberto Rodríguez Fernández" de Morón desde enero del 2014 hasta diciembre de 2019. Resultados: El adulto joven fue el grupo de edad predominante (34,6 por ciento) del sexo masculino (19,8 por ciento), el accidente de tránsito (48,1 por ciento) fue la causa principal. El cuadro hemorrágico (39,5 por ciento) seguidos del cuadro doloroso abdominal (38,3 por ciento) representaron los síntomas clínicos más relevantes. La positividad de los exámenes auxiliares estuvo representada por la ecografía abdominal (74,1 por ciento) seguida de la punción abdominal (9,9 por ciento. Las lesiones hepáticas (27,0 por ciento) seguidas de las esplénicas (19,0 percent) fueron las vísceras macizas más afectadas. El 77,8 por ciento fue intervenido quirúrgicamente y las técnicas quirúrgicas hepáticas fueron las más empleadas para un total de 17 casos (26,9 por ciento). El choque hipovolémico (12,7 por ciento) fue la complicación posoperatoria más encontrada. Se reportó un 12,3 por ciento de fallecidos. Conclusiones: El paciente con trauma cerrado de abdomen debe ser considerado siempre politraumatizado cuyo tratamiento inicial se dirige a la estabilización rápida e identificación de lesiones que amenacen la vida(AU)

Introduction: Blunt abdominal trauma can cause severe organ injury with hemorrhage demanding emergent surgical treatment. It is the leading cause of preventable death among all age groups. Objective: To assess the clinical-surgical characteristics of patients with blunt abdominal trauma. Methods: A descriptive and retrospective observational study was carried out to assess the characteristics of blunt abdominal trauma in 81 patients treated at Roberto Rodríguez Fernández General Provincial Teaching Hospital of Morón from January 2014 to December 2019. Results: Young adults represented the predominant age group (34.6 percent), together with the male sex (19.8 percent). Traffic accident (48.1 percent) was the main cause. Hemorrhagic symptoms (39.5 percent) was the most relevant clinical symptoms, followed by abdominal pain (38.3 percent). Positive results in complementary tests were represented by abdominal ultrasound (74.1 percent), followed by abdominal puncture (9.9 percent). Hepatic lesions (27.0 percent) was the most affected solid viscera, followed by splenic lesions (19.0 percent). 77.8 percent of cases were operated on and hepatic surgical techniques were the most frequently used, accounting for 17 cases (26.9 percent). Hypovolemic shock (12.7 percent) was the most frequent postoperative complication. A death rate of 12.3 percent was reported. Conclusions: The patient with blunt abdominal trauma should always be considered polytraumatized, in which case the initial treatment is aimed at rapid stabilization and identification of life-threatening injuries(AU)

Infectious intracranial aneurysms / 国际脑血管病杂志

Infectious intracranial aneurysms (IIA) is a rare infectious neurovascular disease. The most common clinical manifestation of IIA is subarachnoid hemorrhage or intracranial hematoma caused by aneurysm rupture, which has a high morbidity and mortality. For unruptured IIA, the clinical manifestations are hidden and the diagnosis is more difficult. This article mainly reviews the research progress of diagnosis and treatment of IIA, in order to provide reference for the diagnosis and treatment of IIA.

Normalize the imaging diagnosis of cerebral small vessel disease / 中华神经科杂志

The diagnosis of cerebral small vessel disease (CSVD) is highly dependent on neuroimaging, and its imaging changes include lacune, lacunar infarction, white matter hyperintensity (WMH), perivascular space (PVS), cerebral microbleed, etc. In previous studies, the definitions of these imaging changes were quite different, resulting in misdiagnosis of lacuna, WMH and PVS. This comment will summarize the clinical, imaging, and pathological characteristics of CSVD, sort out the process and effectiveness of the gradually normalized diagnostic standards, and propose errors that should be avoided, aiming to improve the accuracy and consistency of clinical diagnosis and research.

Peripheral venous puncture and contrast in radiological exams: social representations anchored in neuman's stressors / Punción venosa periférica y contraste en exámenes radiológicos: representaciones sociales ancladas en los estresores de neuman / Punção venosa periférica e contraste nos exames radiológicos: representações sociais ancoradas nos estressores de neuman

ABSTRACT Objective: to discuss the social representations about peripheral venipuncture and the use of contrast media of people submitted to radiological examinations, referring to stressor concept. Method: this is qualitative research, outlined in the procedural approach of the Social Representation Theory, carried out with 57 users undergoing computed tomography and magnetic resonance imaging at a university hospital in Juiz de Fora, Minas Gerais, Brazil. In-depth individual interviews triggered by guiding questions were conducted in January 2019. The contents of the interviews were fully transcribed and content analysis was carried out in three stages (pre-analysis, material exploration and treatment/interpretation of results). We established thematic analysis based on the dimensions and representational origins, which made it possible to discuss the findings anchored in the concepts of stressors, allowing the identification of three categories based on intrapersonal, interpersonal and transpersonal stressors. Results: puncture and examination were represented by individual, group, professional and therapeutic environment experiences, classified into the following categories: itinerary and conceptions on puncture and contrasted examinations based on intrapersonal stressors; shared relationships on puncture and examination, based on interpersonal stressors; and experiences in the therapeutic environment of a diagnostic imaging service, based on transpersonal stressors. Conclusion: the social representations were signified by examination, results and impacts on life, portraying stressors based on images/feelings of doubt and positive behaviors rationally justified, which explain human responses to reified content, enabling the restructuring of health care and nursing.

RESUMEN Objetivo: discutir las representaciones sociales sobre la venopunción periférica y el uso de medios de contraste en personas sometidas a exámenes radiológicos, refiriéndose al concepto de estresores. Método: investigación cualitativa, enmarcada en el enfoque procedimental de la Teoría de las Representaciones Sociales, realizada con 57 usuarios sometidos a tomografía computarizada y resonancia magnética en un hospital universitario de Juiz de Fora, Minas Gerais, Brasil. Se realizaron entrevistas individuales en profundidad desencadenadas por preguntas orientadoras en enero de 2019. Los contenidos de las entrevistas se transcribieron íntegramente y se realizó un análisis de contenido en tres etapas (preanálisis, exploración del material y tratamiento/interpretación de los resultados). El análisis de contenido temático-categoría establecido a partir de las dimensiones y orígenes representacionales permitió discutir los hallazgos anclados en los conceptos de estresores, permitiendo la identificación de tres categorías a partir de estresores intrapersonales, interpersonales y transpersonales. Resultados: la punción y el examen fueron representados por las experiencias individuales y grupales, con los profesionales y el ambiente terapéutico, clasificados en las categorías: itinerario y concepciones sobre punción y exámenes contrastados, a partir de estresores intrapersonales; relaciones compartidas sobre punción y examen, basadas en estresores interpersonales; y experiencias en el ambiente terapéutico de un servicio de diagnóstico por imagen, basado en estresores transpersonales. Conclusión: las representaciones sociales fueron significadas por el examen, los resultados y los impactos en la vida, retratando estresores a partir de imágenes/sentimientos de duda y comportamientos positivos justificados racionalmente, que explican las respuestas humanas a los contenidos cosificados, posibilitando la reestructuración de los cuidados de salud y enfermería.

RESUMO Objetivo: discutir as representações sociais sobre a punção venosa periférica e o uso de meios de contraste de pessoas submetidas a exames radiológicos, referenciando-se no conceito de estressores. Método: pesquisa qualitativa, delineada na abordagem processual da Teoria das Representações Sociais, realizada com 57 usuários submetidos a exames de Tomografia Computadorizada e Ressonância Magnética em um Hospital Universitário de Juiz de Fora, Minas Gerais, Brasil. Realizaram-se entrevistas individuais em profundidade desencadeadas por questões norteadoras em janeiro de 2019. Os conteúdos das entrevistas foram transcritos na íntegra e realizou-se análise de conteúdo em três etapas (pré-análise, exploração do material e tratamento/interpretação dos resultados). A análise temático-categorial estabelecida a partir das dimensões e origens representacionais possibilitou a discussão dos achados ancorada nos conceitos de estressores, permitindo a identificação de três categorias baseadas nos estressores intrapessoais, interpessoais e transpessoais. Resultados: a punção e o exame foram representados pelas vivências individuais, grupais, com profissionais e ambiente terapêutico, classificados nas categorias: itinerário e concepções sobre punção e exames contrastados, com base em estressores intrapessoais; relações compartilhadas sobre a punção e o exame, fundamentadas em estressores interpessoais e vivências no ambiente terapêutico de um serviço de diagnóstico por imagem, a partir dos estressores transpessoais. Conclusão: as representações sociais foram significadas por exame, resultado e impactos na vida, retratando estressores alicerçados em imagens/sentimentos de dúvida e comportamentos positivos justificados racionalmente, que explicitam respostas humanas a conteúdos reificados, possibilitando a reestruturação do cuidado em saúde e em enfermagem.

Anatomical description of the skulls of peccaries (Tayassu tajacu, Linnaeus 1758) by computed tomography / [Descrição anatômica de crânio de catetos (Tayassu tajacu, Linnaeus, 1758) por tomografia computadorizada]

The aim of this study was to evaluate the anatomical structures of the skulls of peccaries to establish the basis for their clinical study and future preclinical research. Ten skulls of adult peccaries were subjected to tomographic examination. The data obtained were processed via three-dimensional image reconstruction software (3D images). The reconstructions obtained from the neurocranium of the studied specimens allowed the identification and description of the following structures: nasal bone, frontal bone, parietal bones, incisor bone, maxillary bone, zygomatic bone, temporal bone, palatal bone, occipital bone, vomer bone, pterygoid bone, sphenoid bone, paranasal sinuses and orbit. Computed tomography proved to be an important diagnostic tool in the investigation of the skull of this species, allowing the acquisition of anatomical values not yet documented for the species in the literature.(AU)

O objetivo deste estudo foi avaliar as estruturas anatômicas dos crânios de catetos, a fim de se estabelecerem as bases para seu estudo clínico e futuras pesquisas pré-clínicas. Dez crânios de catetos adultos foram submetidos a exame tomográfico. Os dados obtidos foram introduzidos em um software de reconstrução de imagens tridimensionais (imagens em 3D). As reconstruções obtidas do neurocrânio dos espécimes estudados permitiram a identificação e a descrição das seguintes estruturas: osso nasal, osso frontal, ossos parietais, osso incisivo, osso maxilar, osso zigomático, osso temporal, osso palatino, osso occipital, osso vômer, osso pterigoide, osso esfenoide, seios paranasais e órbita. A tomografia computadorizada mostrou-se como uma ferramenta diagnóstica importante na investigação do crânio dessa espécie, permitindo a aquisição de valores anatômicos ainda não documentados para a espécie na literatura.(AU)

Características clínicas y tomográficas de pacientes con enfermedad cerebrovascular isquémica / Clinical and tomographic characteristics of patients with ischemic cerebrovascular disease

Introducción: El método clínico por sí solo no es definitivo para diagnosticar una enfermedad cerebrovascular, por lo que es importante el uso de medios de diagnóstico imagenológicos como la tomografía axial computarizada, que permite investigar los aspectos morfológicos y funcionales del cerebro. Objetivo: Describir las características clínicas y tomográficas de pacientes con infarto cerebral. Métodos: Se efectuó un estudio descriptivo y transversal de 269 pacientes con infarto cerebral, atendidos en el Hospital Provincial Docente Clinicoquirúrgico Saturnino Lora Torres de Santiago de Cuba, desde enero hasta diciembre de 2019. Resultados: Predominaron el sexo masculino (54,6 %), el grupo etario de 70-79 años, las afectaciones motoras (76,5 %), la alteración de la conciencia (51,3 %) y el trastorno del lenguaje (50,5 %). En 38 pacientes los resultados de la tomografía fueron negativos antes de las 24 horas de evolución y 64,0 % se consideraron mejorados con secuelas. Conclusiones: La tomografía antes de las 24 horas demuestra una baja positividad y los hallazgos evolucionan con el tiempo, aunque es posible reconocer varios signos precoces de ictus agudo en menos de 4-6 horas.

Introduction: The clinical method by itself is not definitive to diagnose a cerebrovascular disease, reason why the use of imaging diagnostic means, as the computerized axial tomography is important, as it allows to investigate the morphological and functional aspects of the brain. Objective: To describe the clinical and tomographic characteristics of patients with complete stroke. Methods: A descriptive and cross-sectional study of 269 patients with complete stroke, assisted in Saturnino Lora Torres Teaching Clinical Surgical Provincial Hospital was carried out in Santiago de Cuba, from January to December, 2019. Results: There was a prevalence of the male sex (54.6 %), 70-79 age group, motor disorders (76.5 %), alteration of the conscience (51.3 %) and language disorder (50.5 %). In 38 patients the results of the tomography were negative before the 24 hours of clinical course and 64.0 % were better with aftereffects of the disease. Conclusions: Tomography before the 24 hours demonstrates a low positivity and findings have a favorable clinical course as time goes by, although it is possible to recognize several early signs of acute ictus in less than 4-6 hours.

Computer-aided intelligent diagnosis and education system for cardiac magnetic resonance imaging / 中华医学教育探索杂志

Cardiac magnetic resonance imaging (CMRI) can comprehensively observe the anatomical structure, motion function and tissue characteristics of the heart through multi-parameter and multi-plane sequence imaging, which has become the gold standard for the diagnosis of cardiomyopathy. However, there is a serious shortage of high-level imaging doctors who can diagnose CMRI due to the numerous sequences and difficult fusion of CMRI. To realize the personalized teaching and interactive education, we have designed a platform that could use artificial intelligence to pre-process medical images for clinical diagnosis, and localize the week points of knowledge, thus improving the teaching effect of cardiac imaging diagnosis.

Application of organ-system-based curriculum design in the training of post competency for medical imaging / 中华医学教育探索杂志

Objective:To explore the teaching effect of organ-system-based curriculum (OSBC) on cultivating the post competency of radiologists.Methods:Based on the teaching design of OSBC, our study has completed the teaching practice for imaging diagnosis of prostate diseases, focal liver lesions, small pulmonary nodules and intestinal obstruction. The imaging diagnosis of prostate diseases was taken as teaching point. Fifty-two trainees were divided into four groups: junior standardized residents and clinical-type postgraduates (JSRCP) group, senior grade of standardized residents and clinical-type postgraduates (SG-SRCP), advanced training radiologist (ATR) group, intern doctors (ID) group. The teaching framework of pre-training assessment, training and post-training test was designed, and the teaching effect and the operability evaluation of OSBC was compared in terms of test scores and subjective evaluation before and after the training. SPSS 18.0 was used for t test. Results:The test scores after training of four groups were significantly improved compared to the test scores before training. The test scores of SG-SRCP group and ATR group were significantly higher than those of ID group ( F=16.609, P<0.001). The results of subjective evaluation showed that the SG-SRCP and ATR group had the highest degree of satisfaction. Conclusion:OSBC education mode has a good training effectiveness of middle and advanced stages course of medical imaging. In the future teaching, OSBC teaching should be explored among different levels of students.