作者
Kimberly Kallianos, Gabriel C Brooks, Kanae Mukai, Florent Seguro de Carvalho, Jing Liu, David M Naeger, Teresa De Marco, Karen G Ordovas
发表日期
2018/1/1
期刊
Academic radiology
卷号
25
期号
1
页码范围
129-135
出版商
Elsevier
简介
Rationale and Objectives
We investigated the feasibility of detecting left ventricular (LV) cardiac magnetic resonance (CMR) strain abnormalities using feature-tracking in patients with pulmonary hypertension (PH).
Materials and Methods
CMR was performed in 16 patients with all groups of PH and in 13 controls. Global and regional peak circumferential strains (%) (which have been shown to be robust by CMR), peak diastolic strain rate (%/s), and dyssynchrony index (ms) were quantified with feature-tracking software. Ventricular function and volumes were calculated from CMR, and right heart pressures were measured with catheterization.
Results
Left ventricular ejection fraction (LVEF) was similar in patients (60.2% ± 11.0%) and controls (61.9% ± 4.5%), P = .150. Global LV peak circumferential strain was significantly different in patients compared to controls, −16.7 ± 2.8% vs −19.9 ± 1.8%, respectively (P …
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K Kallianos, GC Brooks, K Mukai, FS de Carvalho, J Liu… - Academic radiology, 2018