The use of fetal MRI for renal and urogenital tract anomalies

Chalouhi, G. E.; Millischer, A.; Mahallati, Houman; Siauve, Nathalie; Melbourne, Andrew; Grévent, David; Vinit, Nicolas; Heidet, Laurence; Aigrain, Yves; Ville, Y.; Blanc, Thomas; Salomon, Laurent

doi:10.1002/pd.5610

Cited by 24 publications

(18 citation statements)

References 89 publications

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“…In this sequence, fetal kidneys are visualized as elliptical structures in a paravertebral location having an intermediate signal intensity. The renal cortex displays a slightly hypointense signal compared to the medulla, and the signal intensity ratio of the renal cortex to the medulla undergoes a steady increase with the advancement of gestational age [8,9]. The pelvicalyceal system and urinary tract exhibit hyperintense T2 signal intensity similar to the fluid.…”

Section: Discussionmentioning

confidence: 99%

Prenatal diagnosis of congenital anomalies of genito-urinary system on fetal magnetic resonance imaging

Gupta

Mohi

Gambhir

et al. 2020

Egypt J Radiol Nucl Med

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Background: The aim of this study is to elucidate the spectrum of commonly encountered anomalies affecting fetal genito-urinary system (GUS) on fetal MRI and examine its utility in providing better morphological information resulting in improved diagnostic accuracy and in detecting additional malformations. The study also aims to highlight the promising role of fetal MRI in the detection and characterization of renal fusion anomalies like the horseshoe kidney or developmental abnormalities such as renal agenesis/ectopia. Results: The mean age of study participants was 29 years ± 3 years. The gestation age of pregnant mothers ranged from 18 weeks and 1 day to 39 weeks and 0 day. Amniotic fluid was reduced or absent in 41% (N = 13) and normal in 59% (N = 18) of participating mothers. Overall, urinary obstruction was the commonest anomaly encountered (29%) followed by the multicystic dysplastic kidney (MCDK) (22%). Bilateral renal disease was seen in all mothers having features of anhydramnios {B/L MCDK (N = 3), autosomal recessive polycystic kidney disease (ARPKD) (N = 2), posterior urethral valves (PUV) (N = 2), B/L renal agenesis (N = 3), and megacystis (N = 1)}. Fusion anomalies (horseshoe kidney) and rotation anomaly (malrotation) were detected in one case each. Additional extrarenal findings were seen on fetal MRI in 35% (N = 11) cases. Conclusions: Fetal MRI improves diagnostic accuracy in anomalies affecting the fetal kidney and genito-urinary systems by better morphological delineation. It has the ability to detect additional extra-renal malformations and perform a more accurate assessment of associated pulmonary hypoplasia. The diffusion-weighted sequence is particularly useful in confirming the diagnosis of renal agenesis/ectopia.

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Section: Discussionmentioning

confidence: 99%

Prenatal diagnosis of congenital anomalies of genito-urinary system on fetal magnetic resonance imaging

Gupta

Mohi

Gambhir

et al. 2020

Egypt J Radiol Nucl Med

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“…The use of fetal magnetic resonance imaging (MRI) is becoming more prevalent [9]. The imaging fusion of real time US and MRI is feasible and may improve the fetal diagnosis of LUTO.…”

Section: Improving the Accuracy Of Prenatal Diagnosismentioning

confidence: 99%

Therapeutic intervention for fetal lower urinary tract obstruction: Current evidence and future strategies

Farrugia

Kilby

2021

Journal of Pediatric Urology

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“…In addition, fetal MRI is the appropriate next step after detection of fetal urinary tract dilatation specially if fetal intervention is available (Fig. 9) [17].…”

Section: (A)mentioning

confidence: 99%

Imaging of urinary tract in children in different clinical scenarios: a guide for general radiologists

Mohammad

Rawash

AbouZeid

2021

Egypt J Radiol Nucl Med

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Background Children are frequently referred to the pediatric radiology department due to complaints related to the urinary tract. Main body We aimed to describe common clinical scenarios in paediatric urology practice and their recommended imaging diagnostic algorithms. Practical imaging approach to following common clinical scenarios and the common radiological findings are discussed: (A) perinatal urinary tract dilatation and other congenital anomalies; (B) recurrent urinary tract infection; (C) enuresis and daytime urinary incontinence; (D) abdominal masses; (E) flank pain; (F) hematuria; (G) trauma; (H) nonpalpable testis, ambiguous genitalia and common urogenital sinus anomalies; and I) renovascular hypertension Conclusions Imaging investigations should be tailored according to the clinical presentation in a stepwise approach aiming for optimum patients’ care.

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The use of fetal MRI for renal and urogenital tract anomalies

Cited by 24 publications

References 89 publications

Prenatal diagnosis of congenital anomalies of genito-urinary system on fetal magnetic resonance imaging

Prenatal diagnosis of congenital anomalies of genito-urinary system on fetal magnetic resonance imaging

Therapeutic intervention for fetal lower urinary tract obstruction: Current evidence and future strategies

Imaging of urinary tract in children in different clinical scenarios: a guide for general radiologists

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