Comparison of 4D flow and 2D velocity-encoded phase contrast MRI sequences for the evaluation of aortic hemodynamics.
Comparison of 4D flow and 2D velocity-encoded phase contrast MRI sequences for the evaluation of aortic hemodynamics.
复制标题
DOI：
10.1007/s10554-016-0938-5
复制
发表时间：
2016-10
影响因子：
2.1
通讯作者：
Barker, Alex J.
中科院分区：
文献类型：
--
作者：
Bollache, Emilie;van Ooij, Pim;Powell, Alex;Carr, James;Markl, Michael;Barker, Alex J.
The purpose of this study was to compare aortic flow and velocity quantification using 4D flow MRI and 2D CINE phase-contrast (PC)-MRI with either one-directional (2D-1dir) or three-directional (2D-3dir) velocity encoding. 15 healthy volunteers (51 ± 19 years) underwent MRI including (1) breath-holding 2D-1dir and (2) free breathing 2D-3dir PC-MRI in planes orthogonal to the ascending (AA) and descending (DA) aorta, as well as (3) free breathing 4D flow MRI with full thoracic aorta coverage. Flow quantification included the co-registration of the 2D PC acquisition planes with 4D flow MRI data, AA and DA segmentation, and calculation of AA and DA peak systolic velocity, peak flow and net flow volume for all sequences. Additionally, the 2D-3dir velocity taking into account the through-plane component only was used to obtain results analogous to a free breathing 2D-1dir acquisition. Good agreement was found between 4D flow and 2D-3dir peak velocity (differences = −3 to 6 %), peak flow (−7 %) and net volume (−14 to −9 %). In contrast, breath-holding 2D-1dir measurements exhibited indices significantly lower than free breathing 2D-3dir and 2D-1dir (differences = −35 to −7 %, p < 0.05). Finally, high correlations (r ≥ 0.97) were obtained for indices estimated with or without eddy current correction, with the lowest correlation observed for net volume. 4D flow and 2D-3dir aortic hemodynamic indices were in concordance. However, differences between respiration state and 2D-1dir and 2D-3dir measurements indicate that reference values should be established according to the PC-MRI sequence, especially for the widely used net flow (e.g. stroke volume in the AA).
登录
查看更多内容
影响因子：
3.3
作者：
Stalder, A. F.;Russe, M. F.;Markl, M.
通讯作者：
Markl, M.
影响因子：
1.3
作者：
MOHIADDIN, RH;YANG, GZ;KILNER, PJ
通讯作者：
KILNER, PJ
影响因子：
6.7
作者：
Frydrychowicz A;Wieben O;Niespodzany E;Reeder SB;Johnson KM;François CJ
通讯作者：
François CJ
影响因子：
4.4
作者：
Nordmeyer, Sarah;Riesenkampff, Eugenie;Kuehne, Titus
通讯作者：
Kuehne, Titus
DOI：
10.1186/1532-429x-12-9
发表时间：
2010-02-12
期刊：
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance
影响因子：
--
作者：
Eriksson J;Carlhäll CJ;Dyverfeldt P;Engvall J;Bolger AF;Ebbers T
通讯作者：
Ebbers T