Balanced Steady-State Free Precession Cine MR Imaging in the Presence of Cardiac Devices: Value of Interleaved Radial Linear Combination Acquisition With Partial Dephasing.

ABSTRACT:

Background

Balanced steady-state free precession (bSSFP) is important in cardiac MRI but suffers from off-resonance artifacts. The interpretation-limiting artifacts in patients with cardiac implants remain an unsolved issue.

Purpose

To develop an interleaved radial linear combination bSSFP (lcSSFP) method with partial dephasing (PD) for improved cardiac cine imaging when implanted cardiovascular devices are present.

Study type

Prospective.

Phantom and subjects

Flow phantom adjacent to a pacemaker and 10 healthy volunteers (mean age ± standard deviation: 31.9 ± 2.9 years, 4 females) with a cardioverter-defibrillator (ICD) positioned extracorporeally at the left chest in the prepectoral region.

Field strength/sequence

A 3-T, 1) Cartesian bSSFP, 2) Cartesia

SUBMITTER: Xiang J 

PROVIDER: S-EPMC11238270 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature