Cardiac and Respiratory-Resolved Image Reconstruction with the Beat Pilot Tone

作者：Kathryn Lamar-Bruno, Suma Anand, Michael Lustig · 发表于：Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition · 年份：2023 · DOI：10.58530/2022/4446 · 被引用次数：2 · 研究领域：Atomic and Subatomic Physics Research、Advanced MRI Techniques and Applications、Medical Imaging Techniques and Applications

We have previously proposed Beat Pilot Tone (BPT), a motion sensing method using ultra-high-frequency RF and preamplifier intermodulation. BPT uses ultra-high-frequencies, which provides greater sensitivity to motion compared to the Pilot Tone (PT). In this work, we use the motion estimates from the BPT to reconstruct respiratory and cardiac-resolved images and compare them to motion-resolved images obtained using PT, respiratory bellows, and electrocardiogram (ECG) data. We show that BPT provides comparable image quality to conventional motion sensing for respiratory and cardiac motion.