Fetal MRI compared with ultrasound for the diagnosis of obstructive genital malformations

Millischer, A.; Grévent, David; Rousseau, Véronique; O’Gorman, Neil; Sonigo, P.; Bessières, Bettina; Ville, Y.; Boddaert, Nathalie; Salomon, Laurent

doi:10.1002/pd.5155

Cited by 19 publications

(31 citation statements)

References 19 publications

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“…The normal rectum exhibits meconium‐like high intensity signal on T1W images and low intensity signal on T2W images after 24 weeks. The rectum is located close to the bladder with the peritoneum's cul‐de‐sac going down at least 10 mm below the bladder neck, confirming its normal anatomy and ruling out rectal atresia (Figure ).…”

Section: Normal Anatomymentioning

confidence: 71%

“…Fetal MR imaging using fast and ultrafast pulse sequences enables the acquisition of high‐quality images regardless of maternal body habitus, fetal position, or amniotic fluid index. Fetal MRI is also not hampered by the acoustic shadowing from fetal pelvic bones, thereby allowing multiplanar imaging and a better differentiation of kidneys and pelvic organs compared to US, especially late in pregnancy …”

Section: Fetal Mri Of the Genito‐urinary Tractmentioning

confidence: 99%

“…For instance, MRI helps excluding the diagnosis of cloacal malformation by identifying the normal rectum, because of the presence of a normal meconium signal (hyperintense on T1W and hypointense on T2W images) because of the absence of urogenital secretions in the rectum. In a consecutive series of 20 MRIs in obstructive urogenital anomalies, MRI was found to facilitate evaluation of major pelvic organs and to provide significant additional information, optimizing the prenatal management, when compared to US . In particular, MRI facilitated the exclusion of a cloaca …”

Section: Imaging Of the Pathologic Urinary Tractmentioning

confidence: 99%

“…In these circumstances, or when sonography is inconclusive, MRI provides important additional information, certainly as faster sequences become available, which minimize motion hence improve image quality . There are three areas where MRI can add value: (a) adequate morphological examination and additional tissue contrast from MRI to improve the diagnostic accuracy, (b) the detection of additional anomalies not detected by sonography, and (c) the provision of information regarding renal function . Herein, we aimed to review the role of fetal MRI in the anatomical and functional evaluation of renal and urogenital tract anomalies.…”

Section: Introductionmentioning

confidence: 99%

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The use of fetal MRI for renal and urogenital tract anomalies

et al. 2019

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Fetal anomalies are detected in approximately 2% of all fetuses and, among these, genitourinary tract abnormalities account for 30% to 50% of all structural anomalies present at birth. Although ultrasound remains the first line diagnostic modality, fetal MRI provides important additional structural and functional information, especially with the development of faster sequences and the use of functional sequences. The added value of MRI-based imaging is three-fold: (a) improvement of diagnostic accuracy by adequate morphological examination, (b) detection of additional anomalies, and (c) in addition, MRI has the potential to provide information regarding renal function. In this review, we describe the role of fetal MRI in the anatomical evaluation of renal and urogenital tract anomalies, and we also touch upon the contribution of functional MRI to the diagnostic workup of these conditions.

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Section: Normal Anatomymentioning

confidence: 71%

Section: Fetal Mri Of the Genito‐urinary Tractmentioning

confidence: 99%

Section: Imaging Of the Pathologic Urinary Tractmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The use of fetal MRI for renal and urogenital tract anomalies

et al. 2019

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“…Fetal MRI has been shown to improve diagnostic accuracy and diagnostic confidence for brain anomalies, and some body indications leading to management changes in a significant proportion of pregnancies . However, while fetal MR may add clinically relevant information in the second or third trimester of pregnancy, in earlier gestations (first/early second trimesters) its value is limited.…”

Section: Strengths and Weaknessesmentioning

confidence: 99%

Fetal MRI for dummies: what the fetal medicine specialist should know about acquisitions and sequences

et al. 2019

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Fetal MRI is an increasingly used tool in the field of prenatal diagnosis. While US remains the first line screening tool, as an adjuvant imaging tool, MRI has been proven to increase diagnostic accuracy and change patient counseling. Further, there are instances when US may not be sufficient for diagnosis. As a multidisciplinary field, it is important that every person involved in the referral, diagnosis, counseling and treatment of the patients is familiar with the basic principles, indications and findings of fetal MRI. The purpose of the current paper is to equip radiologists and nonradiologists with basic MRI principles and essential topics in patient preparation and provide illustrative examples of when fetal MRI may be used. This aims to aid the referring clinician in better selecting and improve patient counseling prior to arrival in the radiology department and, ultimately, patient care.

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