MRI of fetal GI tract abnormalities

Veyrac, C; Couture, A.; Saguintaah, M.; Baud, C.

doi:10.1007/s00261-003-0147-2

Cited by 151 publications

(82 citation statements)

References 33 publications

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“…Fetal magnetic resonance imaging (MRI) has evolved over the last few years as a supplementary imaging method for fetuses at risk, with several studies published on the MR appearance of the fetal abdomen and gastrointestinal tract [1][2][3]. However, no systematic study on the MRI appearance of the fetal gallbladder has yet been performed.…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging of the fetal gallbladder and bile

2010

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Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging of the fetal gallbladder and bile

2010

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“…In the malformation without urorectal fistula, the rectal signal remained normal (1,2). In our case, absence of normal meconium signal was suggesting for an urorectal fistula (1,9). The situation of the cul-de-sac may be interesting to consider.…”

Section: Discussionmentioning

confidence: 69%

“…If the two structures are in close contact, a high ARM would be suspected; if the two structures are separated by a third one, the diagnosis of cloacal malformation is suggested. In the malformation without urorectal fistula, the rectal signal remained normal (1,2). In our case, absence of normal meconium signal was suggesting for an urorectal fistula (1,9).…”

Section: Discussionmentioning

confidence: 76%

Second trimester diagnosis of imperforate anus

Mhabrech

Zrig

Ksiaa

et al. 2015

The Egyptian Journal of Radiology and Nuclear Medicine

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Imperforate anus or anorectal atresia is often associated with major fetal structural defects but it may also be an isolated abnormality. Prenatal diagnosis is difficult but may be assisted by ultrasound detection of enterolithiasis in dilated bowel and confirmed by MRI study. We report a case of imperforate anus in which enterolithiasis with dilated bowel was detected by ultrasound examination at 25 weeks of gestation and confirmed by MRI examination. At birth, the newborn was diagnosed to have a low type of imperforate anus.A 26-year-old woman gravida 2 para 2 presented to the ultrasound unit at 25 weeks of spontaneous gestation for routine screening. Ultrasound examination using Esaoti (MyLabSIX) machine equipped with 7-10-MHz probes, revealed dilated bowel with intraluminal circular hyperechogenic structures associated with single umbilical artery. No other malformation could be depicted on ultrasound study. Follow-up ultrasound examinations at 28 weeks gestation showed progressive dilatation of bowel and persistence of intraluminal echogenic foci (Fig. 1). MRI examination, was performed on GE 1.5 Tesla superconducting magnet. Axial T1 W images are obtained using 256 · 160 matrix, 48 cm field of view (FOV), 4 mm slice thickness, 2 mm interslice gap, and 1 number of excitation (NEX). High-resolution T2 W images of pelvis are acquired in axial, sagittal, and coronal planes using 256 · 256 matrix, 48 cm FOV, 4 mm slice thickness, 0.4 mm interslice gap, and 0.53 NEX.MRI confirmed at 32 weeks of gestation dilated bowel loops and detected rectal obstruction. The rectal cul-de-sac was located at a level lower than the level of the bladder neck, confirming low anorectal malformation (Fig. 2a) with abnormal and heterogeneous fluid signal on T1 and T2 weighted images: the usual hyperintensity on T1 and hypointensity on T2 of meconium was not identified (Fig. 2b). The urinary bladder was normal. A 3150 g male was born spontaneously at 35 weeks of gestation, with Apgar score (healthy infant score) of 8/9. Esophageal continuity had been confirmed by passing 8 cm red rubber catheter into the stomach. Physical examination revealed an absence of an anal opening and a massively distended abdomen. The abdominal radiograph demonstrated a cluster of multiple calcified shadows, cardiomegaly, and left side pneumothorax associated with right pulmonary hypoplasia (Fig. 3). Abdominal ultrasound confirmed the dilated small and large bowels. Echocardiography done after Abbreviation: ARM, anorectal malformation

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“…We performed a literature search via PubMed on this topic (searching until 2005) and found that no-one except Petrikovsky et al 3 has ever quantified human fetal swallowing movements. Various other studies have quantified ovine fetal swallowing 4,5 .…”

Section: Quantification Of Fetal Swallowing By Ultrasound Is Impossiblementioning

confidence: 99%