MRI findings of posttraumatic intrahepatic vascular shunts.
OBJECTIVE
To describe the features of posttraumatic intrahepatic vascular shunts (PIVS) as seen on MRI.


METHODS
A search was performed for patients with MRI features compatible with PIVS in the Abdominal MRI databases between January 2002 and March 2008. This study was approved by our institutional review board. All patients were imaged using a protocol that included noncontrast T1-weighted and T2-weighted images, and postgadolinium gradient-echo images.


RESULTS
Eleven patients (eight men, three women; mean age 55.36 years; range 43-77 years) were identified with PIVS. The following imaging features were observed: dilation of afferent and efferent vessels (five patients), transient hepatic parenchymal blush in a watershed distribution (11 patients), and early opacification of efferent vessels (11 patients).


CONCLUSIONS
Patients with PIVS exhibit features that are distinctive for this entity and include: dilatation of efferent and afferent vessels, transient parenchymal blush, and early opacification of efferent vessels.
Semelka
Richard C
RC
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7510, USA. richsem@med.unc.edu
Lessa
Teresa
T
Shaikh
Faiq
F
Miller
Frank H
FH
Elazzazi
Mohamed
M
Dyson
Matt
M
D000328:Adult; D000368:Aged; D003287:Contrast Media; D004108:Dilatation, Pathologic / Q000175:diagnosis; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008099:Liver / Q000098:blood supply* / Q000293:injuries*; D008103:Liver Cirrhosis / Q000150:complications; D008107:Liver Diseases / Q000175:diagnosis* / Q000209:etiology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D012189:Retrospective Studies; D014949:Wounds, Nonpenetrating / Q000150:complications*
D003287:Contrast Media; C064925:gadodiamide; D019786:Gadolinium DTPA