Dynamic pseudo-continuous arterial spin labeling angiography using a 3D-radial multi-spoke spoiled gradient-recalled sequence.

ABSTRACT:

Purpose

Accurate identification of arterial feeders and draining veins is critical for treatment decision-making in patients with intracranial high-flow vascular lesions. Currently available MRI sequences lack the temporal and spatial resolution needed for this task. A novel time-resolved pseudo-continuous arterial spin labeling (ASL) angiography sequence with high spatial and temporal resolution was developed, and image quality metrics relevant to clinical performance were assessed.

Methods

Ten volunteers and eight patients with intracranial high-flow vascular lesions underwent a brain MRI protocol, augmented with the new sequence with multi-spoke (1-3) readouts and dynamic, sliding-window reconstruction. For each of the acquisitions, image quality was assessed using a 5-po

SUBMITTER: Petrovic A 

PROVIDER: S-EPMC12681305 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature