.png){kind=icon}
返回
CArtesian sampling with Variable density and Adjustable temporal resolution (CAVA)
.png){kind=icon}
OA
AI
DOI：10.1002/mrm.28059.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Purpose To develop a variable density Cartesian sampling method that allows retrospective adjustment of temporal resolution for dynamic MRI applications and to validate it in real-time phase contrast MRI (PC-MRI). Theory and Methods The proposed method, called CArtesian sampling with Variable density and Adjustable temporal resolution (CAVA), begins by producing a sequence of phase encoding indices based on the golden ratio increment. Then, variable density is introduced by nonlinear stretching of the indices. Finally, the elements of the resulting sequence are rounded up to the nearest integer. The performance of CAVA is evaluated using PC-MRI data from a pulsatile flow phantom and real-time, free-breathing data from ten healthy volunteers. Results CAVA enabled image recovery at various temporal resolutions that were selected retrospectively. For the pulsatile flow phantom, image quality and flow quantification accuracy from CAVA were comparable to that from another pseudo-random sampling pattern with fixed temporal resolution. In addition, flow quantification results based on CAVA were in good agreement with a breath-held segmented acquisition. Conclusions By allowing retrospective binning of the MRI data, CAVA provides an avenue to retrospectively adjust the temporal resolution of PC-MRI.
Keyword:
Bayesian
CMR
golden ratio
phase contrast
real-time
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3
论文数:
1.2W
被引数:
3.1W
机构
引用论文
分享收藏Coronary MR imaging:: Breathhold capability and patterns, coronary artery rest periods, and β-blocker use.png)
RADIOLOGY
RADIOLOGYIF15.2
PREAI
分享收藏
Variable density incoherent spatiotemporal acquisition (VISTA) for highly accelerated cardiac MRIOAAI
OAAI分享收藏
查看更多内容