Abnormal venous drainage in periventricular leukomalacia.
Age-matched six control subjects and 14 selected paediatric patients with periventricular leukomalacia were prospectively studied by MR imaging, and MR angiography. MR angiograms were acquired utilizing either the three-dimensional phase-contrast (3D-PC) or the two-dimensional time-of-flight (2D-TOF) techniques, or both, in an axial slab centred to the centrum semiovale. Abnormal draining veins (slightly enlarged and long vessels with abnormal courses) were found in eight of 14 patients (57%). In five of these eight patients (62.5%) abnormal vessels were identified on conventional MR imaging (spin-echo, T2-weighted and flow sensitive images), while the 3D-PC or 2D-TOF angiograms demonstrated the abnormal vessels in all the patients (100%). Usually there was single abnormal vessel at the region of interest. These vessels should not be misinterpreted as arteriovenous malformations or venous malformations.
Sener
R N
RN
Department of Radiology, Ege University Hospital, Bornova, Izmir, Turkey.
D000293:Adolescent; D016022:Case-Control Studies; D002547:Cerebral Palsy / Q000175:diagnosis / Q000473:pathology; D002550:Cerebral Veins / Q000002:abnormalities / Q000473:pathology*; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000175:diagnosis / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000175:diagnosis / Q000473:pathology; D005260:Female; D006801:Humans; D007089:Image Enhancement; D007231:Infant, Newborn; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis; D007969:Leukomalacia, Periventricular / Q000175:diagnosis / Q000473:pathology*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D011446:Prospective Studies
D003287:Contrast Media