RT Journal Article
SR Electronic
T1 e0706 Evaluation of intraventricular flow in DCM patients using vector flow mapping
JF Heart
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP A218
OP A218
DO 10.1136/hrt.2010.208967.706
VO 96
IS Suppl 3
A1 Zhou Xiao
A1 Zhi Guang
A1 Xu Yong
A1 Wang Jing
A1 Tong Kai
A1 Zhao Bei
YR 2010
UL http://heart.bmj.com/content/96/Suppl_3/A218.3.abstract
AB Aims To assess the change of intraventricular flow due to DCM (Dilated Cardiomyopathy) using VFM (Vector Flow Mapping). Methods DCM patients and healthy candidates were included into two groups. 3C and 5C images were stored using VFM. Vector velocity of intraventricular flow was measured at the different planes and compared among groups. Results Six DCM patients and 11 candidates were included. The vector velocity measured at LV outflow tract is lower in DCM group; a flow in direction of LV apex was found in the middle and apical planes of DCM patients while not in healthy candidates; the vector velocity of isovolumic contraction measured at basal plane is found to be higher in healthy group, but lower in the same group at middle and apical planes. Conclusions In DCM patients, the vector velocity of LVOT is lower, which is accompanied by an abnormal flow distribution in middle and apical parts of left ventricle in both systole and isovolumic contraction. VFM can be used to evaluate the change of the intraventricular blood flow.