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Abstract #1756

Comparing Beat Sensor-Triggered and ECG-Triggered Cardiac MRI: A Prospective Clinical Study

Xianling Qian1,2, Yali Wu1,2, Caixia Fu3, Caizhong Chen1,2, Shiyu Wang1,2, Kai Liu1,2, Yinyin Chen1,2, Ling Chen1,2, Hang Jin1,2, and Mengsu Zeng1,2
1Radiology Department, Zhongshan Hospital, Fudan University, Shanghai, China, 2Shanghai Institute of Medical Imaging, Shanghai, China, 3MR Application Development, Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China

Synopsis

Keywords: Myocardium, Cardiovascular

Motivation: Traditional cardiac magnetic resonance imaging (MRI) relies on electrocardiography (ECG) for triggering, which involves complex preparation and is susceptible to false triggering due to magnetic field interference.

Goal(s): To evaluate the clinical feasibility of beat sensor (BS) for efficient heartbeat-triggered cardiac MR scanning.

Approach: In a prospective study, 50 participants underwent cardiac MRI triggered by both BS and ECG, with assessments of image quality and quantitative parameters.

Results: BS-triggered cardiac MRI showed comparable image quality and quantitative metrics to ECG, with higher signal-to-noise ratio (SNR) in Cine and contrast-to-noise ratio (CNR) in LGE images.

Impact: This study demonstrates the clinical feasibility of BS-triggering for cardiac MRI, offering a viable alternative to ECG triggering, and potentially enhancing the quality of Cine and LGE images.

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