An approach for automatic selecting of optimal data acquisition window for magnetic resonance coronary angiography

Tetsuo Sato; Tomohisa Okada; Shigehide Kuhara; Kaori Togashi; Kotaro Minato

doi:10.1117/12.810223

27 March 2009 An approach for automatic selecting of optimal data acquisition window for magnetic resonance coronary angiography

Tetsuo Sato, Tomohisa Okada, Shigehide Kuhara, Kaori Togashi, Kotaro Minato

Author Affiliations +

Proceedings Volume 7259, Medical Imaging 2009: Image Processing; 72592A (2009) https://doi.org/10.1117/12.810223
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

The purpose of this study is to develop an automated method without user interaction for the optimal placing of ROI for selecting optimal data acquisition window in coronary MRA. One of the major problems of magnetic resonance coronary angiography (MRCA) is the effective suppression of coronary motion due to respiration and cardiac contraction. To compensate for cardiac movement, data acquisition is generally limited to the coronary artery rest period mainly found during end-diastole. End-diastole is called cardiac rest period. Generally, cardiac rest period is decided by operator. Therefore it is subjective, and requires many experiences. As for setting region of interest right coronary is known as an appropriate region for determining cardiac rest period. We proposed a method that is based on the extraction of intensive change regions and the calculation of the correlation coefficient. We tested the algorithm for two sets of clinical MR images and the results are shown.

Citation Download Citation

Tetsuo Sato, Tomohisa Okada, Shigehide Kuhara, Kaori Togashi, and Kotaro Minato "An approach for automatic selecting of optimal data acquisition window for magnetic resonance coronary angiography", Proc. SPIE 7259, Medical Imaging 2009: Image Processing, 72592A (27 March 2009); https://doi.org/10.1117/12.810223

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