作者
Felicia Seemann, Einar Heiberg, Marcus Carlsson, Ricardo A Gonzales, Lauren A Baldassarre, Maolin Qiu, Dana C Peters
发表日期
2020/5
期刊
Journal of Magnetic Resonance Imaging
卷号
51
期号
5
页码范围
1412-1421
出版商
John Wiley & Sons, Inc.
简介
Background
In mitral valve dysfunction, noninvasive measurement of transmitral blood flow is an important clinical examination. Flow imaging of the mitral valve, however, is challenging, since it moves in and out of the image plane during the cardiac cycle.
Purpose
To more accurately measure mitral flow, a slice‐following MRI phase contrast sequence is proposed. This study aimed to implement such a sequence, validate its slice‐following functionality in a phantom and healthy subjects, and test its feasibility in patients with mitral valve dysfunction.
Study Type
Prospective.
Phantom and Subjects
The slice‐following functionality was validated in a cone‐shaped phantom by measuring the depicted slice radius. Sixteen healthy subjects and 10 mitral valve dysfunction patients were enrolled at two sites.
Field Strength/Sequence
1.5T and 3T gradient echo cine phase contrast.
Assessment
A single breath‐hold …
学术搜索中的文章
F Seemann, E Heiberg, M Carlsson, RA Gonzales… - Journal of Magnetic Resonance Imaging, 2020