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Abstract #1495

Myocardial cine T1 mapping using dynamic multiple trigger delay acquisition

Isao Shiina1, Michinobu Nagao2, Masami Yoneyama3, Hiroshi Hamano3, Jihun Kwon3, Yasuhiro Goto1, Yutaka Hamatani1, Kazuo Kodaira1, Takumi Ogawa1, Mana Kato1, Yasuyuki Morita1, and Shuji Sakai2
1Department of Radiological Services, Tokyo Women's Medical University Hospital, Tokyo, Japan, 2Department of Diagnostic imaging & Nuclear Medicine, Tokyo Women's Medical University Hospital, Tokyo, Japan, 3Philips Japan, Tokyo, Japan

Synopsis

Keywords: Myocardium, Cardiomyopathy, myocardium/T1Mapping

Motivation: Myocardial T1-mapping is a widely used quantitative method to evaluate the characteristics of myocardium. Commonly, the cardiac trigger delay (TD) during the diastolic phase depends on the settings of the system. However, because myocardial characteristics can affect both diastole and systole, acquiring T1 mapping at various cardiac phases may have clinical significance.

Goal(s): To acquire cardiac T1 mapping at various cardiac phases in one scan.

Approach: Dynamic trigger delay

Results: The proposed technique was successfully implemented. Application of image registration technique has improved the accuracy of T1 value quanitification.

Impact: CINE T1 mapping can acquire quantitative mapping of several different cardiac phases simultaneously in one scan; it may be useful for more detailed diagnosis of myocardial properties.

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Keywords