長尾　充展
   Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine
   Position   Associate Professor
Article types Original article
Language English
Peer review Peer reviewed
Title Evaluation of ventricular dysfunction using semi-automatic longitudinal strain analysis of four-chamber cine MR imaging.
Journal Formal name：The international journal of cardiovascular imaging
Abbreviation：Int J Cardiovasc Imaging
ISSN code：(1875-8312)1569-5794(Linking)
Domestic / ForeginForegin
Volume, Issue, Page 32(2),pp.283-289
Author and coauthor Kawakubo Masateru, Nagao Michinobu, Kumazawa Seiji, Yamasaki Yuzo, Chishaki Akiko S, Nakamura Yasuhiko, Honda Hiroshi, Morishita Junji
Publication date 2016/02
Summary The aim of this study was to evaluate ventricular dysfunction using the longitudinal strain analysis in 4-chamber (4CH) cine MR imaging, and to investigate the agreement between the semi-automatic and manual measurements in the analysis. Fifty-two consecutive patients with ischemic, or non-ischemic cardiomyopathy and repaired tetralogy of Fallot who underwent cardiac MR examination incorporating cine MR imaging were retrospectively enrolled. The LV and RV longitudinal strain values were obtained by semi-automatically and manually. Receiver operating characteristic (ROC) analysis was performed to determine the optimal cutoff of the minimum longitudinal strain value for the detection of patients with cardiac dysfunction. The correlations between manual and semi-automatic measurements for LV and RV walls were analyzed by Pearson coefficient analysis. ROC analysis demonstrated the optimal cut-off of the minimum longitudinal strain values (εL_min) for diagnoses the LV and RV dysfunction at a high accuracy (LV εL_min = -7.8 %: area under the curve, 0.89; sensitivity, 83 %; specificity, 91 %, RV εL_min = -15.7 %: area under the curve, 0.82; sensitivity, 92 %; specificity, 68 %). Excellent correlations between manual and semi-automatic measurements for LV and RV free wall were observed (LV, r = 0.97, p < 0.01; RV, r = 0.79, p < 0.01). Our semi-automatic longitudinal strain analysis in 4CH cine MR imaging can evaluate LV and RV dysfunction with simply and easy measurements. The strain analysis could have extensive application in cardiac imaging for various clinical cases.
DOI 10.1007/s10554-015-0771-2
PMID 26384485