Contribution of Computed Tomography Enema and Magnetic Resonance Imaging to Diagnose Multifocal and Multicentric Bowel Lesions in Patients With Colorectal Endometriosis.

STUDY OBJECTIVE: To evaluate the diagnostic contribution of the computed tomography (CT) enema and magnetic resonance imaging (MRI) for multifocal (multiple lesions affecting the same segment) and multicentric (multiple lesions affecting several digestive segments) bowel endometriosis. DESIGN: Prospective cohort study (Canadian Task Force classification II-2). PATIENTS: Eighty-five patients. SETTING: Tenon University Hospital, Paris, France. INTERVENTION: All patients received a preoperative CT enema and underwent MRI interpreted by 2 radiologists. MEASUREMENTS AND MAIN RESULTS: Patients underwent colorectal resection for colorectal endometriosis from February 2009 to November 2012. Nineteen patients (22%) had multifocal lesions, and 11 patients (13%) had multicentric lesions. Six patients (7%) had both multifocal and multicentric lesions. The sensitivity, specificity, and positive and negative likelihood ratios (LRs) of MRI for the diagnosis of multifocal lesions were 0.58, 0.84, 3.55, and 0.5, respectively. The sensitivity, specificity, and positive and negative LRs of the CT enema for the diagnosis of multifocal lesions were 0.64, 0.86, 4.56, and 0.4, respectively. The sensitivity, specificity, and positive LR of MRI for the diagnosis of multicentric lesions were 1, 0.88, and 8.4, respectively. The sensitivity, specificity, and positive and negative LRs of MRI for the diagnosis of multicentric lesions were 0.46, 0.92, 5.6, and 0.59, respectively. No difference was observed between MRI and the CT enema for the diagnosis of multifocal and multicentric colorectal endometriosis. The interobserver agreement was good for MRI and the CT enema (κ = 0.45 and 0.45) for multifocality, and it was poor for both MRI and the CT enema (κ = 0.32 and 0.34) for multicentricity. CONCLUSIONS: Both MRI and the CT enema were able to diagnose multifocal and multicentric bowel endometriosis with similar accuracy.

The value of MRI in assessing parametrial involvement in endometriosis.

STUDY QUESTION: What is the accuracy of magnetic resonance imaging (MRI) in the diagnosis of parametrial endometriosis in comparison with surgicopathological findings? SUMMARY ANSWER: MRI displayed an accuracy of 96.4% in the preoperative diagnosis of parametrial involvement by deep infiltrating endometriosis (DIE). WHAT IS KNOWN AND WHAT THIS PAPER ADDS: MRI is the best technique for preoperative mapping of DIE. This preliminary paper shows that T2-weighted MRI is a valuable tool for the preoperative evaluation of parametrial involvement by endometriosis. DESIGN: A retrospective study of an MRI database was used to identify examinations performed in women, who had a clinical suspicion of pelvic endometriosis (n=666), between 2005 and 2009 in a university medical centre in France. PARTICIPANTS AND SETTING: Exclusion criteria were previous surgery for DIE, incomplete surgical evaluation, repeat MRI examinations and incomplete MR protocol. Only symptomatic patients who underwent surgery with a pathological correlation were included (n=83). An experienced radiologist, blind to the surgical and histological findings, evaluated sagittal, axial and thin-section oblique axial MR images obtained from the 83 patients. DATA ANALYSIS METHOD: Descriptive statistics and Fisher exact test were used. MAIN FINDINGS: The prevalence of DIE and parametrial endometriosis was 76/83 (91.6%) and 12/83 (14.5%), respectively. The sensitivity, specificity, positive and negative predictive values, accuracy and positive and negative likelihood ratios for the diagnosis of parametrial endometriosis of low signal intensity on T2-weighted MRI, pelvic wall involvement and ureteral dilatation, were 83.3%, 98.6%, 90.9%, 97.2%, 96.4%, 59.2 and 0.17, 58.3%, 98.6%, 87.5%, 93.3%, 92.8%, 41.4 and 0.42 and 16.7%, 100%, 100%, 87.7%, 88%, infinity and 0.83, respectively, with the patient as the unit of analysis. BIAS AND LIMITATIONS: The study design was retrospective, and thus prone to bias. Only one experienced reader performed the analysis, so no data are available on intra- or interobserver variability. GENERALISABILITY: At present, no consensus exists on the optimal MR protocol to be used for the evaluation of DIE, thus limiting the wider implications of this study. STUDY FUNDING AND COMPETING INTERESTS: No funding was obtained for this study. The authors have no conflict of interest.

Evaluation of Iterative Denoising 3-Dimensional T2-Weighted Turbo Spin Echo for the Diagnosis of Deep Infiltrating Endometriosis.

OBJECTIVES: The primary end point of this study was to evaluate the image quality and reliability of a highly accelerated 3-dimensional T2 turbo spin echo (3D-T2-TSE) sequence with prototype iterative denoising (ID) reconstruction compared with conventional 2D T2 sequences for the diagnosis of deep infiltrating endometriosis (DIE). The secondary end point was to demonstrate the 3D-T2-TSE sequence image quality improvement using ID reconstruction. MATERIAL AND METHODS: Patients were prospectively enrolled to our institution for pelvis magnetic resonance imaging because of a suspicion of endometriosis over a 4-month period. Both conventional 2D-T2 (sagittal, axial, coronal T2 oblique to the cervix) and 3D-T2-TSE sequences were performed with a scan time of 7 minutes 43 seconds and 4 minutes 58 seconds, respectively. Reconstructions with prototype ID (3D-T2-denoised) and without prototype ID (3D-T2) were generated inline at the end of the acquisition. Two radiologists independently evaluated the image quality of 3D-T2, 3D-T2-denoised, and 2D-T2 sequences. Diagnosis confidence of DIE was evaluated for both 3D-T2-denoised and 2D-T2 sequences. Intraobserver and interobserver agreements were calculated using Cohen κ coefficient. RESULTS: Ninety female patients were included. Both readers found that the ID algorithm significantly improved the image quality and decreased the artifacts of 3D-T2-denoised compared with 3D-T2 sequences (P < 0.001). A significant image quality improvement was found by 1 radiologist for 3D-T2-denoised compared with 2D-T2 sequences (P = 0.002), whereas the other reader evidenced no significant difference. The interobserver agreement of 3D-T2-denoised and 2D-T2 sequences was 0.84 (0.73-0.95) and 0.78 (0.65-0.9), respectively, for the diagnosis of DIE. Intraobserver agreement for readers 1 and 2 was 0.86 (0.79-1) and 0.83 (0.76-1), respectively. For all localization of DIE, interobserver and intraobserver agreements were either almost perfect or substantial for both 3D-T2-denoised and 2D-T2 sequences. CONCLUSIONS: Three-dimensional T2-denoised imaging is a promising tool to replace conventional 2D-T2 sequences, offering a significant scan time reduction without compromising image quality or diagnosis information for the assessment of DIE.

Endovascular Treatment of Pelvic Congestion Syndrome: Visual Analog Scale Follow-Up.

Purpose: To evaluate medium-term clinical outcomes of transcatheter embolization and stenting in women with several pelvic venous disorders responsible for chronic pelvic pain and varicose veins of the lower limbs. Materials and Methods: The study population included 327 consecutively recruited patients referred to the interventional radiology unit from January 2014 to December 2019 due to chronic pelvic congestion (91; 27.83%), lower limb varices (15; 4.59%), or a combination of both the symptoms (221; 67.58%). Preprocedural pelvic, transvaginal Doppler ultrasound (US), and MRI were conducted in all the patients and revealed anatomical varicosities and incompetent pelvic veins in 312 patients. In all the patients, selective catheterization demonstrated uterine venous engorgement, ovarian plexus congestion, or pelvic vein filling. Retrograde flow was detected on catheter venography in the left ovarian vein (250; 78%), the right ovarian vein (85; 26%), the left internal iliac vein (222; 68%), and the right internal iliac vein (185; 57%). Patients were followed-up at 1, 6, and 12 months, and years thereafter systematically by the referring angiologist and the interventional radiologist of center. They were contacted by telephone in November and December 2020 to assess pain perception and quality of life by using the visual analog scales from 0 to 10 with assessments made at the baseline and last follow-up. Of the 327 patients (mean age, 42 ± 12 years), 312 patients were suffering from pelvic congestion syndrome and 236 patients was suffering from lower limb varices. All underwent embolization by using ethylene vinyl alcohol copolymer (Onyx®). Eighty-five right ovarian veins, 249 left ovarian veins, 510 tributaries of the right internal iliac vein, and 624 tributaries of the left internal iliac vein were embolized. A cohort of patients also underwent nutcracker syndrome angioplasty (6.7%) and May-Thurner syndrome angioplasty (14%) with a stent placement. Results: The initial technical success rate was 80.9% for embolization of pathological veins and 100% for stenting of stenoses. Overall, 307 patients attended 12-month follow-up visits and 288 (82%) patients completed the telephone survey at mean 39 (±18)-month postintervention. Main pelvic pain significantly improved from 6.9 (±2.4) pre- to 2.0 (±2.4) postembolization (p < 0.001), as did specific symptoms in each category. Improvement or disappearance of pain was achieved in 266/288 (92.36%) patients with improved quality of life in 276/288 (95.8%) patients. There were 16 minor and 4 major adverse events reported on the follow-up. Conclusion: Pelvic vein embolization (Onyx®) is an effective and safe procedure with high clinical success and quality of life improvement rates.

Value of 3D MRI and Vaginal Opacification for the Diagnosis of Vaginal Endometriosis.

Objective: The aim of the study was to evaluate three-dimensional (3D) T2 MRI before and after vaginal opacification (VO) by gel (3DT2VO) and the additional value of 3DT1 with fat-suppression (3DT1FS) MRI in the diagnosis of vaginal endometriosis. Methods: In this study conducted from 2010 to 2013, 51 patients scheduled for surgical treatment of endometriosis underwent MRI 1 day before surgery. Three readers (novice, intermediate, expert) were asked to retrospectively diagnose vaginal endometriosis independently and blindly using four different readings (i.e., 3DT2, 3DT2VO, 3DT2 with 3DT1FS, 3DT2VO with 3DT1FS). Vaginal endometriosis diagnosis was positive on observation of a thickening of vaginal walls on 3DT2 with or without high-signal-intensity spots on 3DT2 and/or 3DT1FS. The reference standard was surgery and histology. Descriptive analysis, Chi-square test, and ROC curves were used for statistical analysis. Results: For all readers, the combination of 3DT2 and 3DT1FS significantly improved the diagnosis of vaginal endometriosis compared with 3DT2 (p = 0.002, p = 0.02, and p = 0.003). 3DT2VO significantly improved diagnosis for the intermediate reader (p = 0.01). High-signal-intensity spots on 3DT1FS had a sensitivity of 50-63.6%, specificity of 86.2-96.6%, and high positive likelihood ratios (14.5-Inf). Conclusion: 3DT2 in association with 3DT1FS appears to be the best 3D MRI protocol for the diagnosis of vaginal endometriosis, whatever the level of experience of readers. The additional value of 3DT2VO is variable among the readers.

Socio-economic and psychological impact of the COVID-19 outbreak on private practice and public hospital radiologists.

PURPOSE: The COVID-19 pandemic has led to an urgent reorganisation of the healthcare system to prevent hospitals from overflowing and the virus from spreading. Our objective was to evaluate the socioeconomic and psychological impact of the COVID-19 outbreak on radiologists. MATERIAL AND METHODS: French radiologists were invited to answer an online survey during the pandemic through mailing lists. The questionnaire was accessible for nine days. It covered socio-demographic information, exposure to COVID-19 at work and impact on work organisation, and included the Insomnia Severity Index and Hospital Anxiety and Depression Scale. Outcomes were moderate to severe insomnia, definite symptoms of depression or anxiety. Risk and protective factors were identified through multivariate binary logistic regression. RESULTS: 1515 radiologists answered the survey. Overall, 674 (44.5 %) worked in a highCOVID-19 density area, 671 (44.3 %) were women, and 809 (53.4 %) worked in private practice. Among responders, 186 (12.3 %) expressed insomnia, 222 (14.6 %) anxiety, and 189 (12.5 %) depression symptoms. Lack of protective equipment, increased teleradiology activity and negative impact on education were risk factors for insomnia (respectively OR [95 %CI]:1.7[1.1-2.7], 1.5[1.1-2.2], and 2.5[1.8-3.6]). Female gender, respiratory history, working in COVID-19 high density area, increase of COVID-19 related activity, and impacted education were risk factors for anxiety (OR[95 %CI]:1.7[1.2-2.3], 2[1.1-3.4], 1.5[1.1-2], 1.2[1-1.4], and 2.1[1.5-3]). Conversely, working in a public hospital was a protective factor against insomnia, anxiety, and depression (OR[95 %CI]:0.4[0.2-0.7], 0.6[0.4-0.9], and 0.5[0.3-0.8]). CONCLUSIONS: During COVID-19 pandemic, many radiologists expressed depression, anxiety and insomnia symptoms. Working in a public hospital was a protective factor against every psychological symptom. Socio-economic impact was also major especially in private practice.

Persistent Müllerian duct syndrome with torsion of a transverse testicular ectopia: first reported case.

Persistent Müllerian duct syndrome with transverse testicular ectopia is a rare pathologic association. A 7-month-old boy was admitted to the emergency department with a right testicular swelling. Physical examination revealed a tender right testis, the upper limits of which could not be palpated. The left testis was impalpable. An ultrasound revealed a normal right testis with an evident blood flow, overcome by a similar mass but avascular. At surgery, the right hernial sac contained both testes with an infantile uterus and fallopian tubes. The left testis was viable after manipulation. Proximal-salpingectomy with corporeal hysterectomy was performed to allow bilateral scrotal orchiopexy.