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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

Meconium peritonitis. Fetus at 26 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image showing a small amount of ascites (short arrow) and dilatation of intestinal loops (long arrow); a small hypointense area is seen in the left hemiabdomen (arrowhead), suggestive of peritoneal calcification. b CT after birth shows peritoneal calcifications and a meconium pseudocyst (arrows)
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Fig11: Meconium peritonitis. Fetus at 26 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image showing a small amount of ascites (short arrow) and dilatation of intestinal loops (long arrow); a small hypointense area is seen in the left hemiabdomen (arrowhead), suggestive of peritoneal calcification. b CT after birth shows peritoneal calcifications and a meconium pseudocyst (arrows)

Mentions: Ascites and dilatation of the small intestine can be detected with MRI. This is best done using T2-weighted sequences (Fig. 11). Peritoneal calcifications are difficult to appreciate on MRI, as they tend to be small and linear. When seen, they are hypointense in both T1- and T2-weighted sequences. A meconium pseudocyst may result from a contained perforation [22]. Polyhydramnios may also be present.Fig. 11


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

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

Meconium peritonitis. Fetus at 26 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image showing a small amount of ascites (short arrow) and dilatation of intestinal loops (long arrow); a small hypointense area is seen in the left hemiabdomen (arrowhead), suggestive of peritoneal calcification. b CT after birth shows peritoneal calcifications and a meconium pseudocyst (arrows)
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3369121&req=5

Fig11: Meconium peritonitis. Fetus at 26 weeks’ gestation. a Fetal coronal single-shot fast spin-echo MR image showing a small amount of ascites (short arrow) and dilatation of intestinal loops (long arrow); a small hypointense area is seen in the left hemiabdomen (arrowhead), suggestive of peritoneal calcification. b CT after birth shows peritoneal calcifications and a meconium pseudocyst (arrows)
Mentions: Ascites and dilatation of the small intestine can be detected with MRI. This is best done using T2-weighted sequences (Fig. 11). Peritoneal calcifications are difficult to appreciate on MRI, as they tend to be small and linear. When seen, they are hypointense in both T1- and T2-weighted sequences. A meconium pseudocyst may result from a contained perforation [22]. Polyhydramnios may also be present.Fig. 11

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