RT Journal Article
SR Electronic
T1 MR High-Resolution Blood Oxygenation Level–Dependent Venography of Occult (Low-Flow) Vascular Lesions
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1239
OP 1242
VO 20
IS 7
A1 Lee, Benjamin C.P.
A1 Vo, Katie D.
A1 Kido, Daniel K.
A1 Mukherjee, Pratik
A1 Reichenbach, Juergen
A1 Lin, Weili
A1 Yoon, Myeong S.
A1 Haacke, Mark
YR 1999
UL http://www.ajnr.org/content/20/7/1239.abstract
AB Summary: A new technique for detecting vascular malformations, high-resolution BOLD venography (HRBV), is described. This technique relies on the BOLD principle for detecting deoxygenated blood in low-flow malformations. HRBV images are acquired using a modified 3D gradient-echo with voxel volumes of 0.5 × 0.5 × 2 mm3. The magnitude data are masked with the phase images to enhance visibility of the venous structures and are displayed using the minimum intensity projection. Preliminary results for 10 patients show that HRBV is more sensitive in detecting cavernomas than is T2*-weighted imaging, and lesions that are presumed to be telangiectasias are detected only with this technique.