Format

Send to

Choose Destination
MAGMA. 1999 Oct;9(1-2):85-91.

Single breath-hold slice-following CSPAMM myocardial tagging.

Author information

1
Institute of Biomedical Engineering and Medical Informatics, University and ETH Zurich, Switzerland.

Abstract

Myocardial tagging has shown to be a useful magnetic resonance modality for the assessment and quantification of local myocardial function. Many myocardial tagging techniques suffer from a rapid fading of the tags, restricting their application mainly to systolic phases of the cardiac cycle. However, left ventricular diastolic dysfunction has been increasingly appreciated as a major cause of heart failure. Subtraction based slice-following CSPAMM myocardial tagging has shown to overcome limitations such as fading of the tags. Remaining impediments to this technique, however, are extensive scanning times (approximately 10 min), the requirement of repeated breath-holds using a coached breathing pattern, and the enhanced sensitivity to artifacts related to poor patient compliance or inconsistent depths of end-expiratory breath-holds. We therefore propose a combination of slice-following CSPAMM myocardial tagging with a segmented EPI imaging sequence. Together with an optimized RF excitation scheme, this enables to acquire as many as 20 systolic and diastolic grid-tagged images per cardiac cycle with a high tagging contrast during a short period of sustained respiration.

PMID:
10555178
DOI:
10.1007/bf02634597
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Zurich Open Access Repository and Archive
Loading ...
Support Center