Wideband myocardial perfusion pulse sequence for imaging patients with a cardiac implantable electronic device.

ABSTRACT:

Purpose

To develop a wideband cardiac perfusion pulse sequence and test whether it is capable of suppressing image artifacts in patients with a cardiac implantable electronic device (CIED), while not exceeding the specific absorption rate (SAR) limit (2.0 W/kg).

Methods

A wideband perfusion pulse sequence was developed by incorporating a wideband saturation pulse to achieve a good balance between saturation of magnetization and SAR. Clinical standard and wideband perfusion MRI scans were performed back-to-back in a randomized order on 16 patients with a CIED undergoing clinical cardiac MRI. Two expert readers graded the artifact intensity and extent on a segmental basis using a 5-point Likert scale, where significant artifact was defined by a composite score. The variance in

SUBMITTER: Hong K 

PROVIDER: S-EPMC6289847 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature