Arterial flow volume measurement using signal intensity gradient versus phase contrast.

ABSTRACT: Determining blood flow in major cerebral arteries is crucial for understanding cerebrovascular diseases. This study focused on comparing flow volumes derived from the signal intensity gradient (SIG) of Time-of-flight magnetic resonance angiography (TOF-MRA), referred to as SIG volume, and two-dimensional phase-contrast MR (PC-MR) and assessing their correlation in both experimental and human studies. The SIG volume of TOF-MRA could be calculated based on the concept of SIG as velocity gradient correspondingly. This research encompassed an experimental study as well as a prospective cross-sectional study involving human participants. Flow volumes were measured in four varying-sized tubes using PC-MR and TOF-MRA in the experimental study. The internal carotid and vertebral arteries were exam

SUBMITTER: Lee CH 

PROVIDER: S-EPMC12749070 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature