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1.
BJOG ; 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-39010306

RESUMO

OBJECTIVE: To compare the effectiveness of endometriosis excision alone to excision plus hysterectomy, with and without bilateral oophorectomy, for endometriosis-related symptoms. DESIGN: Multicentre prospective cohort. SETTING: Eighty-six specialist endometriosis centres. POPULATION: Women undergoing rectovaginal endometriosis surgery between 2009 and 2021. METHODS: We performed multivariable regression with random effects for patient and centre, controlling for age, BMI, smoking, laparoscopic versus open approach and type of bowel surgery performed, with sensitivity analysis for loss to follow-up. MAIN OUTCOME MEASURES: Pain scores, bowel symptoms and quality-of-life measures. RESULTS: Compared to endometriosis excision alone, women undergoing hysterectomy with conservation of ovaries had greater improvement in non-cyclical pain (MD: 1.41/10, 95% CI: 1.03-1.78, p < 0.001), dyspareunia (MD: 1.12/10, 95% CI: 0.71-1.53, p < 0.001), back pain (MD: 1.29/10, 95% CI: 0.92-1.67, p < 0.001) and quality-of-life scores (MD: 8.77/100, 95% CI: 5.79-11.75, p < 0.001) at 24 months post-operatively. Women undergoing hysterectomy with bilateral oophorectomy also had greater improvement in non-cyclical pelvic pain (MD: 2.22/10, 95% CI: 1.80-2.63, p < 0.001), dyspareunia (MD: 1.05/10, 95% CI: 0.59-1.52, p < 0.001), back pain (MD: 1.18/10, 95% CI: 0.77-1.59, p < 0.001) and quality of life (MD: 12.41/100, 95% CI: 9.07-15.74, p < 0.001) at 24 months compared to endometriosis excision alone. Compared to hysterectomy with ovarian conservation, hysterectomy with bilateral oophorectomy was associated with greater improvement in non-cyclical pelvic pain (MD: 0.81/10, 95% CI: 0.32-1.30, p = 0.001) at 24 months and quality of life (MD: 3.74/100, 95% CI: 0.56-6.92, p = 0.021) at 12 months, although this result was sensitive to loss to follow-up. CONCLUSIONS: Patients who undergo endometriosis excision plus hysterectomy experience greater improvement in pain and quality of life compared to those who have endometriosis excision alone. There are additional benefits of bilateral oophorectomy with hysterectomy, although its value is less clear due to loss of follow-up.

2.
Am J Case Rep ; 25: e942237, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38946127

RESUMO

BACKGROUND Incisional flank hernias represent a complication after lateral lumbar spine surgery. Given the increasing rate of lateral lumbar interbody fusions, the rate of incisional flank hernias will increase. Since there are no reports of open massive flank hernia repair utilizing preoperative botulinum injections, we sought to publish this technique to provide surgeons with an innovative method for preoperatively treating patients with massive flank hernias. CASE REPORT A 75-year-old man with a history of coronary artery disease, chronic kidney disease, and abdominal hernia repair presented for evaluation of left lateral abdominal and left lower back bulging for 5 months. The symptoms began after an L2-L4 lateral lumbar spinal fusion. Physical examination revealed a left posterior lateral flank bulge. Computed tomography (CT) showed a fat-containing left posterolateral abdominal hernia. The patient was scheduled for CT-guided lateral abdominal wall botulinum injections, followed by open flank hernia repair. He tolerated the surgery well, was admitted for pain control, and discharged on day 2. Repeat imaging with CT at 3 months showed no evidence of patient's prior hernia defect. CONCLUSIONS Open flank hernia repair, in conjunction with preoperative botulinum toxin injections, allows for optimal visualization and re-approximation of the myofascial components of flank hernia defects. Failure to achieve adequate myofascial and skin closure, along with mesh reinforcement, in open flank hernia repair can result in various surgical site complications, including incisional flank hernia recurrence. We recommend further investigation on the benefits of botulinum injections as an adjunct in management of massive flank hernias.


Assuntos
Herniorrafia , Vértebras Lombares , Fusão Vertebral , Humanos , Masculino , Idoso , Fusão Vertebral/efeitos adversos , Toxinas Botulínicas Tipo A/administração & dosagem , Cuidados Pré-Operatórios , Tomografia Computadorizada por Raios X , Hérnia Incisional/cirurgia
3.
Fertil Steril ; 119(4): 589-595, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36592648

RESUMO

OBJECTIVE: To determine any significant differences in the reproductive outcome from intracytoplasmic sperm injection (ICSI) with surgical sperm retrieval (SSR) between cycles using fresh and cryopreserved sperm and between cycles using epididymal and testicular sperm. DESIGN: A retrospective national cohort study using data from the UK Human Fertilisation and Embryology Authority, including all ICSI cycles performed in the United Kingdom over a 10-year period. SETTING: Hospital. PATIENT(S): All nondonor ICSI cycles from 2008 to 2017 categorized by sperm source and cryopreservation status. INTERVENTION(S): Intracytoplasmic sperm injection with SSR using fresh or cryopreserved sperm and using ejaculated, testicular, and epididymal sperm. MAIN OUTCOME MEASURE(S): Live birth rate, pregnancy rate, and implantation rate. RESULT(S): We analyzed data from 214,649 ICSI cycles, including 199,818 cycles of ejaculated sperm, 5,646 cycles of epididymal sperm, and 9,185 cycles of testicular sperm. Live births rates per ICSI cycle were 28.5%, 30.6%, and 28.7% for ejaculated, epididymal, and testicular sperm cycles, respectively. Epididymal sperm cycles had a higher live birth rate than that of testicular sperm cycles (odds ratio [OR], 1.067; 95% confidence interval [CI], 1.014-1.123). This was despite a higher mean male age (42.5 vs. 40.6 years; 95% CI of difference, 1.81-1.85 years) and female age (34.3 vs. 34.0 years; 95% CI of difference, 0.32-0.34 years) in epididymal cycles than in testicular cycles. Implantation (61.2% vs. 58.0%; OR, 1.086; 95% CI, 1.041-1.133) and clinical pregnancy rates (34.3% vs. 31.3%; OR, 1.085; 95% CI, 1.039-1.132) were also higher in epididymal cycles than in testicular cycles. There were no statistically significant differences in outcomes between cycles using fresh sperm and those using cryopreserved sperm for SSR-ICSI. CONCLUSION(S): Our study indicates that reproductive outcomes of SSR-ICSI are at least comparable with those of ICSI using ejaculated sperm and does not support the preferential use of fresh sperm over cryopreserved sperm in SSR-ICSI. Births per SSR-ICSI cycle were higher for cycles using epididymal sperm than for cycles using testicular sperm; however, the differences were small, which may provide reassurance to patients undergoing these procedures. The results must be interpreted with caution because multivariable analysis was not possible because of aggregation of data.


Assuntos
Infertilidade Masculina , Recuperação Espermática , Gravidez , Masculino , Humanos , Feminino , Estudos Retrospectivos , Estudos de Coortes , Sêmen , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/cirurgia , Testículo , Espermatozoides , Taxa de Gravidez
4.
J Minim Invasive Gynecol ; 29(9): 1092-1098, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35667556

RESUMO

STUDY OBJECTIVE: To retrospectively evaluate the ability of routinely collected preoperative ultrasound data to predict bowel resection during surgery for rectovaginal endometriosis. DESIGN AND SETTING: Patients at the University College London Hospital who underwent surgery for rectovaginal endometriosis during a 6-year period were identified from the prospectively generated hospital (British Society for Gynaecological Endoscopy) database. Imaging data were collected and analyzed to determine associations with the requirement for bowel resection. PATIENTS: We evaluated 228 consecutive women undergoing bowel surgery (shave, disc resection, or segmental resection) for rectovaginal endometriosis. INTERVENTIONS: The patients in our study underwent surgical resection of rectovaginal endometriosis and interventions included shave, disc resection, and segmental resection of the bowel. All patients underwent a preoperative transvaginal ultrasound to assess the extent of endometriosis. MEASUREMENTS AND MAIN RESULTS: There were 206 rectal shaves (90.4%), 2 disc resections (0.9%), and 20 segmental bowel resections (8.8%). A multivariable analysis demonstrated an association between bowel resection and ≥2 nodules located in the rectovaginal space (odds ratio [OR] 6.85; 95% confidence interval [CI], 1.37-34.2), nodules in the vesicouterine pouch (OR 5.87; 95% CI, 1.03-33.3), and increasing nodule size (OR 2.39 per 1 cm increase per 1 cm diameter increase; 95% CI, 1.56-3.64). CONCLUSION: Ultrasound findings of endometriotic nodule location, number of nodules, and increasing size are independent predictors of segmental bowel resection at the time of surgery for rectovaginal endometriosis. This highlights the importance of accurate diagnostic evaluation to aid counseling and surgical planning in the preoperative setting for women with rectovaginal endometriosis.


Assuntos
Endometriose , Laparoscopia , Doenças Retais , Endometriose/complicações , Endometriose/diagnóstico por imagem , Endometriose/cirurgia , Feminino , Humanos , Laparoscopia/métodos , Doenças Retais/complicações , Doenças Retais/diagnóstico por imagem , Doenças Retais/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
5.
J Low Genit Tract Dis ; 25(2): 142-145, 2021 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-33587530

RESUMO

OBJECTIVE: Malignant melanoma of the female genital tract is a rare disease with poor prognosis, with controversies remaining in its staging and management. In this study, we investigate clinical, pathological, and outcome data for patients referred to a tertiary cancer center with female genital tract melanoma over a decade. METHODS: Patients were retrospectively identified using a search of pathology reports to identify all cases of female genital tract melanoma from 2007 to 2019. Electronic patient records were used to record clinical information. Histopathology specimens were reviewed by a gynecological and dermatological pathology specialist. RESULTS: We identified 30 cases of genital tract melanoma, of which 19 were vulvar, 10 were vaginal, and 1 cervical. Overall survival at 1, 3, and 5 years was found to be 80%, 60%, and 57%. Patients who died were not significantly older at presentation than patients who survived (62 y vs 69 y, p = .215). No association was found between mortality and microscopic ulceration, lymphovascular invasion, pigmentation, resection margins, or radical versus local surgery.Nonvulvar lesions were significantly associated with mortality compared with vulvar lesions (p = .0018), despite similar age and Breslow thickness. Five patients were diagnosed at in situ stage, all of these were vulvar. Even after excluding these melanomas in situ, nonvulvar melanomas still had a significantly worse mortality rate (p = .048). A higher proportion of nonvulvar lesions than vulvar lesions displayed loss of pigmentation (p = .026). CONCLUSIONS: Nonvulvar genital tract melanomas carry a significantly worse prognosis. Survival was not related to resection margins, supporting the use of more conservative surgical margins.


Assuntos
Neoplasias dos Genitais Femininos/epidemiologia , Neoplasias dos Genitais Femininos/patologia , Melanoma/epidemiologia , Melanoma/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Neoplasias dos Genitais Femininos/terapia , Humanos , Melanoma/terapia , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Centros de Atenção Terciária , Reino Unido/epidemiologia , Neoplasias do Colo do Útero , Neoplasias Vaginais , Neoplasias Vulvares
6.
Top Magn Reson Imaging ; 27(1): 25-31, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29406412

RESUMO

The expansive technological developments that occurred over the past decades have clearly moved the field of Interventional MRI beyond the arena of the "proof of concept" to a viable option for minimally invasive diagnosis and therapy. State-of-the-art MRI technology can currently be employed to identify an occult target pathology, confidently steer an interventional device into complex anatomy, accurately deliver a device, drug, or energy, and/or monitor the real time effect of a treatment. Implementing a full-scope interventional MRI service requires substantial physical and conceptual modifications of the traditional diagnostic MRI environment. As such, it is essential to recognize that interventional MRI does not only involve the actual MRI-guided interventional event but should rather be perceived as a whole foundation of technology, development, set-up, conceptual training, and an institutional culture that realizes the opportunities offered by and understands the challenges and limitations of MRI-guided interventions. At Emory University, we had the privilege to build a de novo interventional MRI suite and to subsequently operate a high volume clinical interventional MRI service. The Emory program was launched with the goal of establishing a destination site for a comprehensive clinical service of MRI-guided interventions. The experience gained and the lessons learned are shared with the readers in this article.


Assuntos
Departamentos Hospitalares/organização & administração , Imagem por Ressonância Magnética Intervencionista/métodos , Radiologia/organização & administração , Humanos , Imagem por Ressonância Magnética Intervencionista/instrumentação
7.
Emerg Med J ; 35(2): 127-129, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29351927

RESUMO

A short cut review was carried out to establish whether chemical thromboprophylaxis was a safe early intervention in patients with solid organ injury that is being managed non-operatively. Eight papers presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these papers are tabulated. It is concluded that there is inadequate evidence assessing safety of low molecular weight heparin (LMWH) within 24 hours of trauma. The current available evidence does suggest that administration of LMWH within 48 hours is safe in non-operative management of patients who have sustained solid organ injury from blunt trauma.


Assuntos
Traumatismos Abdominais/tratamento farmacológico , Heparina de Baixo Peso Molecular/efeitos adversos , Guias de Prática Clínica como Assunto , Trombose/prevenção & controle , Ferimentos não Penetrantes/tratamento farmacológico , Heparina de Baixo Peso Molecular/farmacologia , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Trombose/tratamento farmacológico
8.
Am J Orthop (Belle Mead NJ) ; 46(2): E124-E130, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28437498

RESUMO

Superior mesenteric artery (SMA) syndrome is a rare and potentially life-threatening complication of scoliosis surgery. The anatomical relationship of the duodenum and the superior mesenteric artery, the correction of angular deformity of the spine, and the normal adolescent growth spurt all contribute to the condition. We report the case of a 14-year-old boy who had a history of idiopathic scoliosis and presented with bilious vomiting that had persisted for 7 days after posterior T9-L4 fusion with instrumentation. After an unremarkable immediate postoperative course, on postoperative day 19 the patient presented to the emergency department with abdominal pain, nausea, and vomiting. Unrelenting brown vomitus, abdominal pain, and a 20-lb weight loss were noted. A series of upper gastrointestinal radiographs confirmed a diagnosis of SMA syndrome. A nasojejunal tube was placed, and nutritional rehabilitation was optimized. We highlight this case for its rarity and emphasize the importance of maintaining a high index of suspicion when evaluating a child who has had spinal deformity correction and presents with postoperative gastrointestinal complaints. Early recognition of the nonspecific symptoms of abdominal pain, abdominal distension, bilious or projectile vomiting, hypoactive bowel sounds, and anorexia plays a key role in post-scoliosis surgery and is crucial in preventing the severe morbidity and mortality associated with SMA syndrome.


Assuntos
Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/terapia , Escoliose/cirurgia , Fusão Vertebral/métodos , Síndrome da Artéria Mesentérica Superior/etiologia , Síndrome da Artéria Mesentérica Superior/terapia , Adolescente , Nutrição Enteral/métodos , Humanos , Masculino
9.
Eur Radiol ; 27(9): 3647-3651, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28280932

RESUMO

Advances in informatics and information technology are sure to alter the practice of medical imaging and image-guided therapies substantially over the next decade. Each element of the imaging continuum will be affected by substantial increases in computing capacity coincident with the seamless integration of digital technology into our society at large. This article focuses primarily on areas where this IT transformation is likely to have a profound effect on the practice of radiology. KEY POINTS: • Clinical decision support ensures consistent and appropriate resource utilization. • Big data enables correlation of health information across multiple domains. • Data mining advances the quality of medical decision-making. • Business analytics allow radiologists to maximize the benefits of imaging resources.


Assuntos
Sistemas de Informação em Radiologia/tendências , Radiologia/tendências , Tomada de Decisão Clínica/métodos , Mineração de Dados/métodos , Mineração de Dados/tendências , Sistemas de Apoio a Decisões Clínicas/tendências , Humanos , Tecnologia da Informação/tendências , Internet/tendências , Informática Médica/tendências
11.
J Magn Reson Imaging ; 45(4): 1154-1162, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27796061

RESUMO

PURPOSE: To demonstrate the feasibility, safety, and effectiveness of image-guided sclerotherapy of low-flow vascular malformations using a 1.5 Tesla (T) MR scanner with real-time imaging capability and in-suite fluoroscopy. MATERIALS AND METHODS: Thirty-three procedures were performed with real-time 1.5T MR-guidance on 22 patients with a vascular malformation in the neck (n = 2), chest (n = 6), abdomen and pelvis (n = 15), and extremities (n = 11). Quantitative analysis was performed for changes in (a) planning time, (b) targeting time (interval between needle skin puncture and lesion access), (c) intervention time (interval between needle skin puncture and needle removal), and (d) total procedure time. Qualitative analysis was performed for (a) success of therapy and (b) occurrence of complications. RESULTS: Technical success was achieved in 29 of 33 procedures. The average planning time did not significantly change between the first seven procedures and the last seven procedures (P = 0.447). The average targeting time decreased by 0:24:45 (hours:minutes:seconds) (P = 0.043), the average intervention time decreased by 0:26:58 (P = 0.022), and the average procedure time decreased by 0:28:41 (P = 0.046) when comparing the first seven procedures and the last seven procedures. Overall, there was an improvement in the patients' predominant symptoms following 82% of procedures, including a significant decrease in average pain following therapy (P < 0.001). There was a minor complication rate of 3% with no major complications. CONCLUSION: MR-guided percutaneous sclerotherapy seems to be a safe, effective, and versatile technique for treating low-flow vascular malformations. LEVEL OF EVIDENCE: 3 J. Magn. Reson. Imaging 2017;45:1154-1162.


Assuntos
Imagem por Ressonância Magnética Intervencionista/métodos , Escleroterapia/métodos , Malformações Vasculares/terapia , Adolescente , Adulto , Criança , Estudos de Viabilidade , Feminino , Fluoroscopia , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Malformações Vasculares/diagnóstico por imagem , Adulto Jovem
12.
J Am Coll Radiol ; 13(8): 909-13, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27292371

RESUMO

PURPOSE: Radiation dose information is increasingly requested by nonradiology providers, but there are no standard methods for communicating dose. The aim of this study was to compare physicians' perceptions of the amount of radiation associated with similar dose quantities expressed using different dose terms to evaluate the impact of word choice on physicians' understanding of radiation dose. METHODS: Internal medicine and pediatric residents were surveyed online for 42 days. After obtaining demographics and training levels, respondents were asked to rank five different radiation dose quantities, each corresponding to one of the five ACR relative radiation levels (RRLs) expressed using different dose terms. Respondents ranked the choices from least to greatest (ie, from 1 to 5) or indicated if all five were equal. For the final question, the same dose quantity was expressed five different ways. RESULTS: Fifty-one medicine and 45 pediatric residents responded (a 44% response rate). Mean differences in rankings were as follows: for chest x-rays, 0.109 (95% confidence interval [CI], -0.018 to 0.236); for cross-country flights, 0.462 (95% CI, 0.338 to 0.585); for natural background radiation, -0.672 (95% CI, -0.793 to -0.551); for cancer risk, -0.294 (95% CI, -0.409 to -0.178); and for ACR RRL, 0.239 (95% CI, 0.148 to 0.329). Statistically significant differences were found in the distributions of rankings (P < .001) and percentage of correct rankings across each radiation dose term (P < .001), with the ACR RRL having the highest percentage of correct rankings (61.2%). CONCLUSIONS: Adult and pediatric physicians consistently over- or underestimated radiation dose quantities using different terms to express radiation dose. These results suggest that radiation dose information should be communicated using standard terminology such as the ACR RRL scale to foster consistency and improve the accuracy of physicians' radiation risk perceptions.


Assuntos
Atitude do Pessoal de Saúde , Atitude Frente a Saúde , Internato e Residência/estatística & dados numéricos , Idioma , Doses de Radiação , Exposição à Radiação/classificação , Terminologia como Assunto , Competência Clínica/estatística & dados numéricos , Pesquisas sobre Atenção à Saúde , Conhecimentos, Atitudes e Prática em Saúde , Medicina Interna/estatística & dados numéricos , Pediatria/estatística & dados numéricos , Estados Unidos
13.
Radiology ; 279(1): 226-38, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26465058

RESUMO

During the past decade, with its breakthroughs in systems biology, precision medicine (PM) has emerged as a novel health-care paradigm. Challenging reductionism and broad-based approaches in medicine, PM is an approach for disease treatment and prevention that takes into account individual variability in genes, environment, and lifestyle. It involves integrating information from multiple sources in a holistic manner to achieve a definitive diagnosis, focused treatment, and adequate response assessment. Biomedical imaging and imaging-guided interventions, which provide multiparametric morphologic and functional information and enable focused, minimally invasive treatments, are key elements in the infrastructure needed for PM. The emerging discipline of radiogenomics, which links genotypic information to phenotypic disease manifestations at imaging, should also greatly contribute to patient-tailored care. Because of the growing volume and complexity of imaging data, decision-support algorithms will be required to help physicians apply the most essential patient data for optimal management. These innovations will challenge traditional concepts of health care and business models. Reimbursement policies and quality assurance measures will have to be reconsidered and adapted. In their 10th biannual symposium, which was held in August 2013, the members of the International Society for Strategic Studies in Radiology discussed the opportunities and challenges arising for the imaging community with the transition to PM. This article summarizes the discussions and central messages of the symposium.


Assuntos
Diagnóstico por Imagem , Medicina de Precisão , Humanos
15.
Acad Radiol ; 22(12): 1600-5, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26854302

RESUMO

The ideal moderator of a conference session does more than simply introduce the speakers to the audience: a capable facilitator can do a great deal to lead the presenters and the participants on an informative journey. This article discusses expectations of a moderator and tips that can be applied to facilitate effective and efficient sessions at professional society meetings and to optimize the satisfaction of audience members. To assist first-time moderators become adept, these guidelines are comprehensive; however, even the most experienced moderators may benefit by reviewing this article.


Assuntos
Congressos como Assunto/organização & administração , Comunicação , Guias como Assunto , Humanos
16.
J Magn Reson Imaging ; 41(2): 525-35, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24395498

RESUMO

PURPOSE: Image-guided treatment of low-flow vascular (venous or lymphatic) malformations presents a challenging visualization problem, regardless of the imaging modality being used for guidance. The purpose of this study was to employ a new magnetic resonance imaging (MRI) sequence, T2 -weighted interrupted balanced steady-state free precession (T2 W-iSSFP), for real-time image guidance of needle insertion. MATERIALS AND METHODS: T2 W-iSSFP uses variable flip angle balanced steady-state free precession (bSSFP, a.k.a. SSFP) to establish T2 -weighting and fat suppression. Swine (n = 3) and patients (n = 4, three female, all with venous malformations) were enrolled in the assessment. T2 -weighted turbo spin echo (T2 -TSE) with spectral adiabatic inversion recovery (SPAIR), SPAIR-T2 -TSE or T2 -TSE for short, was used as the reference. T2 -weighted half Fourier acquired single shot turbo spin echo (T2 -HASTE) with SPAIR (SPAIR-T2 -HASTE, T2 -HASTE for short), fat saturated bSSFP (FS-SSFP), and T2 W-iSSFP were imaged. Numeric metrics, namely, contrast-to-noise ratio (CNR) efficiency (CNR divided by the square root of acquisition time) and local sharpness (the reciprocal of edge width), were used to assess image quality. MR-guided sclerotherapy was performed on the same patients using real-time T2 W-iSSFP to guide needle insertion. RESULTS: Comparing the visualization of needles in the images of swine, the local sharpness (mm(-1) ) was: 0.21 ± 0.06 (T2 -HASTE), 0.48 ± 0.02 (FS-SSFP), and 0.49 ± 0.03 (T2 W-iSSFP). T2 W-iSSFP is higher than T2 -HASTE (P < 0.001). For the patient images, their CNR efficiencies were: 797 ± 66 (T2 -HASTE), 281 ± 44 (FS-SSFP), and 860 ± 29 (T2 W-iSSFP). T2 W-iSSFP is higher than FS-SSFP (P < 0.02). The frame rate of T2 W-iSSFP was 2.5-3.5 frames per second. All MR-guided sclerotherapy procedures were successful, with all needles (six punctures) placed in the targets. CONCLUSION: T2 W-iSSFP provides effective lesion identification and needle visualization. This new pulse sequence can be used for MR-guided sclerotherapy of low-flow vascular malformations. It may have potential use in other MR-guided procedures where heavily T2 -weighted real-time images are needed.


Assuntos
Imagem por Ressonância Magnética Intervencionista/métodos , Escleroterapia/métodos , Malformações Vasculares/terapia , Adulto , Animais , Meios de Contraste , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Agulhas , Suínos
17.
Am J Med Qual ; 30(5): 447-53, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-24934127

RESUMO

The authors examined faculty's compliance with a hospital-approved neuroradiology critical findings (CFs) policy, which requires urgent verbal communication with the clinical team when 17 specific critical pathologies are identified. During June 2011 to July 2013, 50 random neuroradiology reports were sampled monthly for the presence of CFs and appropriate action. Faculty were provided ongoing feedback, and at the end of 2 years, the medical records for cases with noncommunicated CFs were reviewed to identify potential adverse outcomes. Of the 1200 reviewed reports, 195 (16.3%) had and 1005 (83.8%) did not have a CF. A total of 176 of 195 (90.3%) cases with CFs were communicated, and compliance increased from 77.4% to 85.6% (P = .027) since the monthly sampling was instituted; 1 of 19 (5.3%) noncommunicated CFs resulted in a potential adverse event. The ongoing monthly feedback resulted in improved faculty compliance with the CF policy. However, a small number of cases with CFs are still not being communicated.


Assuntos
Comunicação em Saúde/métodos , Neurorradiografia/métodos , Melhoria de Qualidade , Gestão da Qualidade Total/métodos , Comunicação em Saúde/normas , Humanos , Erros Médicos/estatística & dados numéricos , Neurologia/métodos , Neurologia/estatística & dados numéricos , Neurorradiografia/estatística & dados numéricos , Melhoria de Qualidade/estatística & dados numéricos , Radiologia/métodos , Radiologia/estatística & dados numéricos , Fatores de Tempo , Gestão da Qualidade Total/estatística & dados numéricos
18.
J Am Coll Radiol ; 11(10): 984-8, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25091152

RESUMO

PURPOSE: Physician malpractice expert witnesses may testify on behalf of physicians or patients. The goal of the study was to assess the experience of neuroradiologists as expert witnesses and their attitudes about such testimony. METHODS: A survey was distributed to the 4,357 e-mail addresses of the members of the American Society of Neuroradiology with questions about expert witnesses. RESULTS: The survey found that 1,301 of 4,357 answered at least one survey question. Five hundred twenty seven of 1194 (44.1%) of respondents had experience as expert witnesses. Most offer to testify on behalf of both plaintiffs and defendant physicians (324 of 465; 69.7%). Some do not testify/review cases on behalf of a plaintiff because they do not think that physicians should testify against other physicians, even if negligence is a factor (40 of 198; 20.2%). This reason was the most common for not agreeing to be an expert witness for a plaintiff, for all age groups. Of those expressing an opinion, 312 of 874 (35.7%) of neuroradiologists feel negatively about expert witnesses, whereas 434 of 874 (49.6%) say they serve a purpose, and 105 of 874 (12.0%) feel they should be commended for their work on behalf of the justice system. CONCLUSIONS: Of neuroradiologists answering the survey, nearly half have served as expert witnesses, and most feel comfortable testifying for both plaintiffs and defendants. Substantive negative perceptions (35.7%) of expert witnesses were found.


Assuntos
Prova Pericial , Imperícia/legislação & jurisprudência , Neuroimagem/normas , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Estados Unidos
19.
J Am Coll Radiol ; 11(9): 868-73, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25041992

RESUMO

Like all physicians, radiologists in the United States are subject to frequent and costly medical malpractice claims. Legal scholars and physicians concur that the US civil justice system is neither precise nor accurate in determining whether malpractice has truly occurred in cases in which claims are made. Sometimes, this inaccuracy is driven by biases inherent in medical expert-witness opinions. For example, expert-witness testimony involving "missed" radiology findings can be negatively affected by several cognitive biases, such as contextual bias, hindsight bias, and outcome bias. Biases inherent in the US legal system, such as selection bias, compensation bias, and affiliation bias, also play important roles. Fortunately, many of these biases can be significantly mitigated or eliminated through the use of appropriate blinding techniques. This paper reviews the major works on expert-witness blinding in the legal scholarship and the radiology professional literature. Its purpose is to acquaint the reader with the evidence that unblinded expert-witness testimony is tainted by multiple sources of bias and to examine proposed strategies for addressing these biases through blinding.


Assuntos
Prova Pericial , Imperícia/legislação & jurisprudência , Radiologia/legislação & jurisprudência , Humanos , Revisão por Pares , Competência Profissional , Estados Unidos
20.
AJR Am J Roentgenol ; 202(6): 1256-63, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24848822

RESUMO

OBJECTIVE: The objective of our study was to determine whether the CT scout view should be routinely reviewed by comparing diagnostic information on the scout view with that provided by the correlative CT study. MATERIALS AND METHODS: Two radiologists blinded to history and CT findings reviewed retrospectively 2032 scout views. All cases with major findings (defined as any abnormality that would prompt additional diagnostic tests or require management) were correlated with the CT study, other imaging study, or medical record when necessary by a third radiologist to determine the validity of the scout view finding and whether the finding was identifiable on the current CT study. RESULTS: Major findings were identified in 257 (13%, reader 1) and 436 (23%, reader 2) of cases. Most major findings were confirmed (69-78%) or refuted (13-16%) by the CT study. However, 15 (6%, reader 1) and 48 (11%, reader 2) of the major findings were not included in the CT FOV, of which five (2%, reader 1) and 21 (5%, reader 2) constituted a missed pathologic finding. The most common one was cardiomegaly detected on a nonchest CT scout view. Additional pathologic findings included fracture, metastasis, avascular necrosis or subluxation of the humeral head, dilated bowel, and thoracic aortic dilatation. The most common false-positive finding was cardiomegaly. CONCLUSION: In a small percentage of cases, review of the CT scout view will disclose significant pathologic findings not included in the CT FOV. The results of this study support the routine inspection of the scout view, especially for the detection of pathologic findings in anatomic regions not imaged by CT.


Assuntos
Erros de Diagnóstico/prevenção & controle , Erros de Diagnóstico/estatística & dados numéricos , Testes Diagnósticos de Rotina/estatística & dados numéricos , Tomografia Computadorizada por Raios X/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Maryland , Pessoa de Meia-Idade , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Método Simples-Cego , Revisão da Utilização de Recursos de Saúde , Adulto Jovem
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