Test-Retest Reliability of Cerebral Blood Flow and Blood Oxygenation Level-Dependent Responses to Hypercapnia and Hyperoxia Using Dual-Echo Pseudo-Continuous Arterial Spin Labeling and Step Changes in the Fractional Composition of Inspired Gases

摘要

Purpose: To assess the reproducibility of blood oxygenation level-dependent / cerebral blood flow (BOLD/CBF) responses to hypercapnia/hyperoxia using dual-echo pseudo-continuous arterial spin labeling (pCASL) and step changes in inspired doses.