Evaluation of ventricular dysfunction using semi-automatic longitudinal strain analysis of four-chamber cine MR imaging

Masateru Kawakubo, Michinobu Nagao, Seiji Kumazawa, Yuzo Yamasaki, Akiko S. Chishaki, Yasuhiko Nakamura, Hiroshi Honda, Junji Morishita

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)283-289
ページ数7
ジャーナルInternational Journal of Cardiovascular Imaging
32
2
DOI
出版ステータス出版済み - 2 1 2016

All Science Journal Classification (ASJC) codes

  • 放射線学、核医学およびイメージング
  • 循環器および心血管医学

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