Quantification of myocardial blood flow using non-ECG-triggered MR imaging.

ABSTRACT:

Purpose

MR myocardial perfusion imaging is dependent on reliable electrocardiogram (ECG) triggering for accurate measurement of myocardial blood flow (MBF). A non-ECG-triggered method for quantitative first-pass imaging may improve clinical feasibility in patients with poor ECG signal. The purpose of this study is to evaluate the feasibility of a non-ECG-triggered method for myocardial perfusion imaging in a single slice.

Methods

The proposed non-ECG-triggered technique uses a saturation-recovery magnetization preparation and golden-angle radial acquisition for integrated arterial input function (AIF) measurement. Image based self-gating with a temporal resolution of 42.6 ms is used to generate a first-pass image series with consistent cardiac phase. The AIF is measured usin

SUBMITTER: Chen D 

PROVIDER: S-EPMC4362861 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature