Chunxue Wu1, Mengqi Dong1, Tao Hong2, Hongqi Zhang1, and Jie Lu1
1Xuanwu Hospital Capital Medical University, Beijing, China, 22030921@qq.com, Beijing, China
1Xuanwu Hospital Capital Medical University, Beijing, China, 22030921@qq.com, Beijing, China
Digital subtraction angiography (DSA) is the golden standard of radiological technique for diagnosis and treatment evaluation of cerebral arteriovenous malformations (CAVMs). However, DSA is invasive and ionizing radiative. Silent MRA, which combines arterial spin labeling (ASL) and an ultrashort time echo (UTE), is used for CAVM structure visualization. The silent MRA is superior to TOF-MRA and enables the same Spetzler-Martin classification of cerebral AVM as that at DSA.
Figure 1: DSA, silent and TOF MRA images of a 14-year-old male patient with a left
frontal CAVM. DSA anterior(a) and lateral (b) projection from the left internal carotid
artery reveals AVM nidus (*) fed primarily by the left anterior and middle cerebral
artery (arrowhead) and its drainer (arrow). The nidus (asterisk) feeders (arrowhead) and
drainer (arrow) are better delineated on Silent MRA images (c,d) than the TOF MRA
ones (e,f ).
Figure 2: DSA , silent and TOF MRA images of a 33-year-old female patient with a
right basal ganglia CAVM. DSA anterior(a) and lateral (b) projection from the right
internal carotid artery reveals AVM nidus (*) fed primarily by the right anterior and
middle cerebral artery (arrowhead) and its deep venous drainer (arrow). The nidus
(asterisk) and drainer (arrow) are better delineated on Silent MRA images (c,d) than the
TOF MRA ones (e,f )