波谱学杂志2017，Vol.34Issue(3)：283-293,11.DOI:10.11938/cjmr20172555
基于同时多层激发和并行成像的心脏磁共振电影成像
Accelerated Cardiac CINE Imaging with CAIPIRINHA and Partial Parallel Acquisition
摘要
Abstract
Cardiac magnetic resonance imaging (CMRI) is a non-invasive technique that features multi-contrast and allows imaging at arbitrary orientations. However, the clinical applications of cardiac MRI are limited, mainly due to its long scan time. To speed up cardiac CINE imaging, a multi-fold accelerated cardiac CINE imaging method based on simultaneous multi-slice imaging and reconstruction technique was proposed. By combining the controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) technique and a partial parallel acquisition (PPA) scheme, a four-fold acceleration (i.e., 2-fold along the phase encoding direction and 2-fold along the slice encoding direction) was achieved. The proposed technique was tested and verified on phantoms and human subjects using an improved image reconstruction method SENSE/GRAPPA. Results demonstrated that the proposed method is effective in reducing cardiac CINE scan time, while preserving image quality and accuracy of cardiac function assessment.关键词
磁共振成像(MRI)/心脏电影成像/相位调制多层激发(CAIPIRINHA)/并行成像/SENSE/GRAPPAKey words
MRI/cardiac CINE imaging/CAIPIRINHA/parallel imaging/SENSE/GRAPPA分类
数理科学引用本文复制引用
黄小倩,赵乐乐,陈利勇,徐健,陈群..基于同时多层激发和并行成像的心脏磁共振电影成像[J].波谱学杂志,2017,34(3):283-293,11.基金项目
中国科学院重点部署项目(Y325511211). （Y325511211）
