Multidetector CT venography and contrast-enhanced MR venography of the inferior mesenteric vein in paediatric extrahepatic portal vein obstruction.
BACKGROUND
Extrahepatic portal vein obstruction (EHPVO) is a common cause of paediatric portal hypertension and the only permanent treatment is shunt surgery. The inferior mesenteric vein (IMV) is a portal venous channel that can be used for the shunt when the splenic vein/superior mesenteric vein is thrombosed or when a lienorenal shunt is not possible.


OBJECTIVE
To compare MDCT venography (MDCTV) and contrast-enhanced MR venography (CEMRV) for visualisation of the IMV in children with EHPVO.


METHODS
This was a prospective study of 26 children (4-12 years, median 10 years) who underwent MDCTV and CEMRV. The IMV visualisation was graded using 4- and 2-point scales and the difference in visualisation was assessed by calculating the exact significance probability (P).


RESULTS
The IMV was visualised in all children on MDCTV and 25/26 children on CEMRV (96%). The images were diagnostic in 23/26 children (88%) on MDCTV and in 18/26 (69%) children on CEMRV (P=0.063).


CONCLUSIONS
MDCTV and CEMRV are comparable for IMV visualisation with a tendency toward MDCTV being superior.
Department of Radiology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
Vikash Srinivasaiah Setty
VS
Chennur
Raju
R
Sharma
Shivanand
S
Gamanagatti
Veereshwar
V
Bhatnagar
Arun Kumar
AK
Gupta
Sreenivas
S
Vishnubhatla
D002648:Child; D002675:Child, Preschool; D003251:Constriction, Pathologic; D003287:Contrast Media; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging*; D053783:Magnetic Resonance Imaging, Interventional; D008297:Male; D008642:Mesenteric Veins / Q000000981:diagnostic imaging* / Q000473:pathology*; D010690:Phlebography; D011169:Portal Vein / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology
D003287:Contrast Media