Combined angiography and perfusion using radial imaging and arterial spin labeling.

ABSTRACT:

Purpose

To demonstrate the feasibility of a novel noninvasive MRI technique for the comprehensive evaluation of blood flow to the brain: combined angiography and perfusion using radial imaging and arterial spin labeling (CAPRIA).

Methods

In the CAPRIA pulse sequence, blood labeled with a pseudocontinuous arterial spin labeling pulse train is continuously imaged as it flows through the arterial tree and into the brain tissue using a golden ratio radial readout. From a single raw data set, this flexible imaging approach allows the reconstruction of both high spatial/temporal resolution angiographic images with a high undersampling factor and low spatial/temporal resolution perfusion images with a low undersampling factor. The sparse and high SNR nature of angiographic images e

SUBMITTER: Okell TW 

PROVIDER: S-EPMC6282709 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature