Mixed echo train acquisition displacement encoding with stimulated echoes: An optimized DENSE method for in vivo functional imaging of the human heart
✍ Scribed by Anthony H. Aletras; Han Wen
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 500 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0740-3194
- DOI
- 10.1002/mrm.1223
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✦ Synopsis
Abstract
__M__ixed __e__cho __t__rain __a__cquisition __d__isplacement __en__coding with __s__timulated __e__choes (meta‐DENSE) is a phase‐based displacement mapping technique suitable for imaging myocardial function. This method has been optimized for use with patients who have a history of myocardial infarction. The total scan time is 12–14 heartbeats for an in‐plane resolution of 2.8 × 2.8 mm^2^. Myocardial strain is mapped at this resolution with an accuracy of 2% strain in vivo. Compared to standard __st__imulated __e__cho (STE) methods, both data acquisition speed and resolution are improved with inversion‐recovery FID suppression and the meta‐DENSE readout scheme. Data processing requires minimal user intervention and provides a rapid quantitative feedback on the MRI scanner for evaluating cardiac function. Magn Reson Med 46:523–534, 2001. Published 2001 Wiley‐Liss, Inc.