Influence of labeling parameters and respiratory motion on velocity-selective arterial spin labeling for renal perfusion imaging.

ABSTRACT:

Purpose

Arterial transit time uncertainties and challenges during planning are potential issues for renal perfusion measurement using spatially selective arterial spin labeling techniques. To mitigate these potential issues, a spatially non-selective technique, such as velocity-selective arterial spin labeling (VSASL), could be an alternative. This article explores the influence of VSASL sequence parameters and respiratory induced motion on VS-label generation.

Methods

VSASL data were acquired in human subjects (n = 15), with both single and dual labeling, during paced-breathing, while essential sequence parameters were systematically varied; (1) cutoff velocity, (2) labeling gradient orientation and (3) post-labeling delay (PLD). Pseudo-continuous ASL was acquired as a spat

SUBMITTER: Bones IK 

PROVIDER: S-EPMC7384062 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature