Real-time phase-contrast flow cardiovascular magnetic resonance with low-rank modeling and parallel imaging

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• 作者：Aiqi Sun ; Bo Zhao ; Yunduo Li ; Qiong He…
• 关键词：Cardiovascular imaging ; Phase ; contrast CMR ; Cine ; Real ; time flow imaging ; Model ; based reconstruction ; Low ; rank modeling ; Parallel imaging
• 刊名：Journal of Cardiovascular Magnetic Resonance
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：19
• 期：1
• 全文大小：2422KB
• 刊物主题：Imaging / Radiology; Angiology; Cardiology;
• 出版者：BioMed Central
• ISSN：1532-429X
• 卷排序：19

文摘

BackgroundConventional phase-contrast cardiovascular magnetic resonance (PC-CMR) employs cine-based acquisitions to assess blood flow condition, in which electro-cardiogram (ECG) gating and respiration control are generally required. This often results in lower acquisition efficiency, and limited utility in the presence of cardiovascular pathology (e.g., cardiac arrhythmia). Real-time PC-CMR, without ECG gating and respiration control, is a promising alternative that could overcome limitations of the conventional approach. But real-time PC-CMR involves image reconstruction from highly undersampled (k, t)-space data, which is very challenging. In this study, we present a novel model-based imaging method to enable high-resolution real-time PC-CMR with sparse sampling.