Abstract #3242

A novel sequence for Simultaneous imaging of cerebral Arteries and VEins (SAVE) based on velocity-selective arterial spin labeling

Lixin Liu¹, Lili Wang¹, Ying Hua Chu², Jian Wang³, Hao Li^1,4, He Wang^1,4,5, and Zhensen Chen^1,4

¹Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, Shanghai, China, ²MR Research Collaboration Team, Siemens Healthineers Ltd., Shanghai, China, ³The Department of Neurosurgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, China, ⁴Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence (Fudan University), Ministry of Education, Shanghai, China, ⁵Human Phenome Institute, Fudan University, Shanghai, China

Synopsis

Keywords: Data Acquisition, Vessels

Motivation: The conventional velocity-selective ASL-based (VSASL) MRA couldn’t separate arteries and veins unless additional module is used, which would cause long scan time. In addition, its acquisition efficiency is low since a long waiting time for blood refreshing.

Goal(s): To proposed a VSASL-based sequence for Simultaneous imaging of cerebral Arteries and VEins (SAVE).

Approach: SAVE uses the waiting period between consecutive shots of VSASL MRA to acquire SWI data. VSASL MRA/MRV were obtained by subtracting Control images from Label images, while SWI images were averaged to increase SNR.

Results: SAVE-VSASL MRA/MRV can well depict arteries and veins, and SAVE-SWI MRV could depict veins well.

Impact: The novel sequence can obtain decent VSASL MRA/MRV and SWI MRV images. The combination of the VSASL MRA/MRV and SWI MRV in SAVE should allows separation of arteries and veins by post-processing, that may be useful in clinical settings.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.