Heart-Model-Based Automated Method for Left Ventricular Measurements in Cardiac MR: Comparison with Manual and Semi-automated Methods.
10.13104/jksmrm.2013.17.3.200
- Author:
Seung Hoon CHAE
1
;
Whal LEE
;
Eun Ah PARK
;
Jin Wook CHUNG
Author Information
1. Department of Radiology, Seoul National University Hospital, Seoul, Korea. whal.lee@gmail.com
- Publication Type:Original Article
- Keywords:
Magnetic resonance imaging (MRI);
Heart;
Volumetery
- MeSH:
Axis, Cervical Vertebra;
Heart;
Heart Ventricles;
Humans
- From:Journal of the Korean Society of Magnetic Resonance in Medicine
2013;17(3):200-206
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To assess the effect of applying an automated heart model based measurements of left ventricle (LV) and compare with manual and semi-automated measurements at Cardiovascular MR Imaging. MATERIALS AND METHODS: Sixty-two patients who underwent cardiac 1.5T MR imaging were included. Steady state free precession cine images of 20 phases per cardiac cycle were obtained in short axis views and both 2-chamber and 4-chamber views. Epicardial and endocardial contours were drawn in manual, automated, and semi-automated ways. Based on these acquired contour sets, the end-diastolic (ED) and end-systolic (ES) volumes, ejection fraction (EF), systolic volume (SV) and LV mass were calculated and compared. RESULTS: In EDV and ESV, the differences among three measurement methods were not statistically significant (P = .399 and .145, respectively). However, in EF, SV, and LV mass, the differences were statistically significant (P=.001, <001, <001, respectively) and the measured value from automated method tend to be consistently higher than the values from other two methods. CONCLUSION: An automatic heart model-based method grossly overestimate EF, SV and LV mass compared with manual or semi-automated methods. Even though the method saves a considerable amount of efforts, further manual adjustment should be considered in critical clinical cases.
