Longitudinal strain correlated with haemodynamics in patients with chronic thromboembolic pulmonary hypertension

Methods After informed consent, 36 patients (age, 45.9 ± 10.1 years; male/female= 25/11, Heart rate=65 ± 8bpm) with chronic thromboembolic pulmonary hypertension (CTEPH) underwent CMRI at 3T (TimTrio, Siemens) and right heart catheterization in the same day. After Four-chamber cine images were acquired during short breath-holds with a retrospectively gated turbo FLASH gradient-echo sequence and the longitudinal strain independently measured by two radiologists on four-chamber cine images with Trufistrain (Siemens). The hemodynamics was evaluated with right heart catheterization. The feasibility of the longitudinal strain assessed by Trufistrain. The feasibility of strain evaluated with Trufistrain were assessed with A Bland-Altman plot and correlation of strain with hemodynamics was evaluated with Spearman correlation on Medicalc and SPSS