- Meeting abstract
- Open Access
404 New developments in adaptive imaging by real-time prospective tracking of cardiac motion on a COMB tag pre-scan
© Dowsey et al; licensee BioMed Central Ltd. 2008
- Published: 22 October 2008
- Cardiac Motion
- Aortic Valve Leaflet
- Ventricular Trabecula
- Axis Image Plane
- Phantom Validation
In conventional CMR, bulk cardiac motion causes target structures to move in and out of the image plane. This results in poor localisation of subtle features and causes systematic errors in the measurement of flow and perfusion. Retrospective motion correction is only possible if comprehensive 3D acquisitions are obtained. To attain optimal data acquisition efficiency, it is necessary to prospectively track the tissue motion and adapt the imaging plane during data acquisition. In contrast to respiratory-induced motion tracking, there has been little progress so far in correcting cardiac motion .
This paper demonstrates the use of COMB tagging for prospective tissue tracking in CMR and its value for valve imaging and accurate delineation of mobile structures such as ventricular trabeculae.
The methods developed will facilitate the evaluation of diseases such as ischemic heart disease, valve disease and insufficiency, isolated ventricular non-compaction and arrythmogenic ventricular dysplasia. It will also have implications on future CMR sequence design, allowing motion-compensated measurements of flow and myocardial perfusion.
This article is published under license to BioMed Central Ltd.