Biometric and morphological features on magnetic resonance imaging of fetal bladder in lower urinary tract obstruction: new perspectives for fetal cystoscopy
| Autor: | Pascale Sonigo, V.M. Pandya, Alessandro Delmonte, David Grevent, Nicolas Vinit, Sabine Sarnacki, Nathalie Boddaert, A.-E. Millischer-Bellaiche, Thomas Blanc, Bettina Bessières, G. Benchimol, Yves Aigrain, Julien Stirnemann, Yves Ville, Laurent Salomon |
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| Rok vydání: | 2019 |
| Předmět: |
Posterior urethral valve
Adult Male Biometry Cystoscope Gestational Age urologic and male genital diseases Ultrasonography Prenatal 03 medical and health sciences 0302 clinical medicine Pregnancy Prenatal Diagnosis medicine Humans Radiology Nuclear Medicine and imaging 030212 general & internal medicine Retrospective Studies 030219 obstetrics & reproductive medicine Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Obstetrics and Gynecology Gestational age Magnetic resonance imaging General Medicine Cystoscopy medicine.disease Magnetic Resonance Imaging Urinary Bladder Neck Obstruction Neck of urinary bladder Urethra medicine.anatomical_structure Reproductive Medicine Case-Control Studies Female Nuclear medicine business Urinary tract obstruction |
| Zdroj: | Ultrasound in obstetricsgynecology : the official journal of the International Society of Ultrasound in Obstetrics and GynecologyREFERENCES. 56(1) |
| ISSN: | 1469-0705 |
| Popis: | OBJECTIVES Incompatibility between currently available fetoscopes and the anatomical constraints of the distended fetal bladder, with the resulting curvature around the bladder neck, account for most technical difficulties during fetal cystoscopy in lower urinary tract obstruction (LUTO). The aim of this anatomical study was to assess by magnetic resonance imaging (MRI) the variation in three bladder angles (bladder-neck angle (BNA), vesicourethral angle (VUA) and angle between bladder dome and posterior urethra (DUA)), according to gestational age (GA), bladder volume and the presence of LUTO. METHODS From our fetal medicine database, we retrieved for review 46 MRI examinations of male fetuses between 2015 and 2019, including 17 with LUTO, examined at a mean GA of 28.1 (range, 17.3-35.0) weeks and 29 age-matched controls, examined at 29.9 (range, 21.9-35.0) weeks. We measured bladder volume, bladder-wall thickness and the three bladder angles, and used the Mann-Whitney U-test to compare values between groups. Variations according to GA and bladder volume were determined using analysis of variance (ANOVA). A reliability study was performed using the Bland-Altman method and Lin's correlation coefficient was calculated. RESULTS Both bladder volume and bladder-wall thickness were significantly greater in the LUTO group (P |
| Databáze: | OpenAIRE |
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