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Fetal MR in the evaluation of pulmonary and digestive system pathology.

Martin C, Darnell A, Escofet C, Duran C, Pérez V - Insights Imaging (2012)

Bottom Line: Congenital malformations of the thorax, abdomen, and gastrointestinal tract are common.As various organs can be affected, accurate location and morphological characterization are important for accurate diagnosis.We describe the normal appearance of fetal thoracic, abdominal, and gastrointestinal structures on MRI, and we discuss the most common anomalies involving these structures and the role of MRI in their study. • To learn about the normal anatomy of the fetal chest, abdomen, and GI tract on MRI. • To recognize the MR appearance of congenital anomalies of the lungs and the digestive system. • To understand the value of MRI when compared to US in assessing fetal anomalies.

View Article: PubMed Central - PubMed

Affiliation: Radiology Department, UDIAT CD, Institut Universitari Parc Taulí-UAB, Sabadell, Spain.

ABSTRACT

Background: Prenatal awareness of an anomaly ensures better management of the pregnant patient, enables medical teams and parents to prepare for the delivery, and is very useful for making decisions about postnatal treatment. Congenital malformations of the thorax, abdomen, and gastrointestinal tract are common. As various organs can be affected, accurate location and morphological characterization are important for accurate diagnosis.

Methods: Magnetic resonance imaging (MRI) enables excellent discrimination among tissues, making it a useful adjunct to ultrasonography (US) in the study of fetal morphology and pathology.

Results: MRI is most useful when US has detected or suspected anomalies, and more anomalies are detected when MRI and US findings are assessed together.

Conclusion: We describe the normal appearance of fetal thoracic, abdominal, and gastrointestinal structures on MRI, and we discuss the most common anomalies involving these structures and the role of MRI in their study.

Teaching points: • To learn about the normal anatomy of the fetal chest, abdomen, and GI tract on MRI. • To recognize the MR appearance of congenital anomalies of the lungs and the digestive system. • To understand the value of MRI when compared to US in assessing fetal anomalies.

No MeSH data available.


Related in: MedlinePlus

Cecal atresia. Fetus at 22 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image and b fetal coronal T1-weighted gradient-echo flash image. In the right hemiabdomen, below the liver there is a dilated bowel loop hypointense on T2- and hyperintense on T1-weighted images (arrows), due to meconium. c Abdominal X-ray after birth shows a dilated bowel loop. d At surgery cecal atresia was found
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Fig12: Cecal atresia. Fetus at 22 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image and b fetal coronal T1-weighted gradient-echo flash image. In the right hemiabdomen, below the liver there is a dilated bowel loop hypointense on T2- and hyperintense on T1-weighted images (arrows), due to meconium. c Abdominal X-ray after birth shows a dilated bowel loop. d At surgery cecal atresia was found

Mentions: Atresia of the colon and anorectal atresia are uncommon and, as in other atresias, vascular impairment seems the most likely etiology. Intestinal loops above the atresia may be dilated, and meconium accumulated above the atresia may cause high signal intensity on T1-weighted sequences (Fig. 12) [22]. The differential diagnosis should include other causes of intestinal dilatation, atresia of the colon, and Hirschsprung’s disease.Fig. 12


Fetal MR in the evaluation of pulmonary and digestive system pathology.

Martin C, Darnell A, Escofet C, Duran C, Pérez V - Insights Imaging (2012)

Cecal atresia. Fetus at 22 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image and b fetal coronal T1-weighted gradient-echo flash image. In the right hemiabdomen, below the liver there is a dilated bowel loop hypointense on T2- and hyperintense on T1-weighted images (arrows), due to meconium. c Abdominal X-ray after birth shows a dilated bowel loop. d At surgery cecal atresia was found
© Copyright Policy
Related In: Results  -  Collection

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getmorefigures.php?uid=PMC3369121&req=5

Fig12: Cecal atresia. Fetus at 22 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image and b fetal coronal T1-weighted gradient-echo flash image. In the right hemiabdomen, below the liver there is a dilated bowel loop hypointense on T2- and hyperintense on T1-weighted images (arrows), due to meconium. c Abdominal X-ray after birth shows a dilated bowel loop. d At surgery cecal atresia was found
Mentions: Atresia of the colon and anorectal atresia are uncommon and, as in other atresias, vascular impairment seems the most likely etiology. Intestinal loops above the atresia may be dilated, and meconium accumulated above the atresia may cause high signal intensity on T1-weighted sequences (Fig. 12) [22]. The differential diagnosis should include other causes of intestinal dilatation, atresia of the colon, and Hirschsprung’s disease.Fig. 12

Bottom Line: Congenital malformations of the thorax, abdomen, and gastrointestinal tract are common.As various organs can be affected, accurate location and morphological characterization are important for accurate diagnosis.We describe the normal appearance of fetal thoracic, abdominal, and gastrointestinal structures on MRI, and we discuss the most common anomalies involving these structures and the role of MRI in their study. • To learn about the normal anatomy of the fetal chest, abdomen, and GI tract on MRI. • To recognize the MR appearance of congenital anomalies of the lungs and the digestive system. • To understand the value of MRI when compared to US in assessing fetal anomalies.

View Article: PubMed Central - PubMed

Affiliation: Radiology Department, UDIAT CD, Institut Universitari Parc Taulí-UAB, Sabadell, Spain.

ABSTRACT

Background: Prenatal awareness of an anomaly ensures better management of the pregnant patient, enables medical teams and parents to prepare for the delivery, and is very useful for making decisions about postnatal treatment. Congenital malformations of the thorax, abdomen, and gastrointestinal tract are common. As various organs can be affected, accurate location and morphological characterization are important for accurate diagnosis.

Methods: Magnetic resonance imaging (MRI) enables excellent discrimination among tissues, making it a useful adjunct to ultrasonography (US) in the study of fetal morphology and pathology.

Results: MRI is most useful when US has detected or suspected anomalies, and more anomalies are detected when MRI and US findings are assessed together.

Conclusion: We describe the normal appearance of fetal thoracic, abdominal, and gastrointestinal structures on MRI, and we discuss the most common anomalies involving these structures and the role of MRI in their study.

Teaching points: • To learn about the normal anatomy of the fetal chest, abdomen, and GI tract on MRI. • To recognize the MR appearance of congenital anomalies of the lungs and the digestive system. • To understand the value of MRI when compared to US in assessing fetal anomalies.

No MeSH data available.


Related in: MedlinePlus