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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

Normal fetal anatomy of the thoracoabdominal region. Fetus at 28 weeks’ gestation. a, b and c Fetal axial, sagittal, and coronal single-shot fast spin-echo MR images showing some normal fetal structures: h heart, L lungs, t thymus, and li liver. The trachea and bronchi are seen as hyperintense tubular structures in (c)
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Fig1: Normal fetal anatomy of the thoracoabdominal region. Fetus at 28 weeks’ gestation. a, b and c Fetal axial, sagittal, and coronal single-shot fast spin-echo MR images showing some normal fetal structures: h heart, L lungs, t thymus, and li liver. The trachea and bronchi are seen as hyperintense tubular structures in (c)

Mentions: The liver is well depicted in all planes. It is fairly hypointense on T2-weighted sequences and has intermediate signal intensity on T1-weighted images. The gallbladder is well visualized and is hyperintense on T2-weighted sequences. The spleen is more difficult to see; its signal intensity is somewhat greater than that of the liver at T2. The pancreas is not usually seen, possibly due to its small size. The peritoneal cavity is a virtual cavity that is not usually seen except when ascites is present. The abdominal wall is easily identified in T2-weighted sequences in all planes. The umbilical cord and its place of insertion are also easily recognizable, especially in the midline sagittal and axial planes. Volumetric sequences can be very helpful in the evaluation of the umbilical cord (Figs. 1 and 2).Fig. 1


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

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

Normal fetal anatomy of the thoracoabdominal region. Fetus at 28 weeks’ gestation. a, b and c Fetal axial, sagittal, and coronal single-shot fast spin-echo MR images showing some normal fetal structures: h heart, L lungs, t thymus, and li liver. The trachea and bronchi are seen as hyperintense tubular structures in (c)
© Copyright Policy
Related In: Results  -  Collection

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

Fig1: Normal fetal anatomy of the thoracoabdominal region. Fetus at 28 weeks’ gestation. a, b and c Fetal axial, sagittal, and coronal single-shot fast spin-echo MR images showing some normal fetal structures: h heart, L lungs, t thymus, and li liver. The trachea and bronchi are seen as hyperintense tubular structures in (c)
Mentions: The liver is well depicted in all planes. It is fairly hypointense on T2-weighted sequences and has intermediate signal intensity on T1-weighted images. The gallbladder is well visualized and is hyperintense on T2-weighted sequences. The spleen is more difficult to see; its signal intensity is somewhat greater than that of the liver at T2. The pancreas is not usually seen, possibly due to its small size. The peritoneal cavity is a virtual cavity that is not usually seen except when ascites is present. The abdominal wall is easily identified in T2-weighted sequences in all planes. The umbilical cord and its place of insertion are also easily recognizable, especially in the midline sagittal and axial planes. Volumetric sequences can be very helpful in the evaluation of the umbilical cord (Figs. 1 and 2).Fig. 1

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