Left ventricular global longitudinal strain calculated from manually traced endocardial border lengths utilizing the images for routine ejection fraction measurement by biplane method of disks
| Autor: | Kazunori Okada, Nobuo Masauzi, Taisei Mikami, Sanae Kaga, Minami Araki, Mizuki Hara, Kosuke Tsujita, Yoichi Sakamoto, Ayaka Yoshikawa |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
Global longitudinal strain Ejection fraction Longitudinal strain Speckle tracking echocardiography Endocardial border Biplane Ventricular Function Left 030218 nuclear medicine & medical imaging Ventricular Dysfunction Left 03 medical and health sciences 0302 clinical medicine Humans Radiology Nuclear Medicine and imaging Biplane method of disks Mathematics business.industry Ultrasound Significant difference Left ventricular systolic function Speckle-tracking echocardiography Stroke Volume General Medicine Echocardiography Length change Female 030211 gastroenterology & hepatology business Nuclear medicine Algorithms |
| Zdroj: | Journal of medical ultrasonics. 47(1):91-96 |
| ISSN: | 1346-4523 |
| Popis: | Purpose The purpose of this study was to test whether the fractional change in the endocardial border length between end-diastole and end-systole as manually traced in left ventricular ejection fraction (LVEF) measurement using the biplane method of disks (MOD) was consistent with the global longitudinal strain derived from speckle-tracking echocardiography. Methods For 105 patients who underwent echocardiography, two- and four-chamber images with manually traced endocardial lines for LVEF measurement by MOD were stored. LV endocardial lengths at end-diastole and at end-systole were measured on both images to calculate the fractional length changes, which were averaged (GLS(MOD)). Speckle-tracking analysis was performed to measure global longitudinal strains in the apical two- and four-chamber and long-axis images, and the three values were averaged (GLS(STE)) according to the ASE and EACVI guidelines. Results There was no significant difference between GLS(MOD) and GLS(STE). GLS(MOD) correlated well with GLS(STE) (r = 0.81, p < 0.001), and there was no fixed bias in the Bland-Altman analysis. The intraclass correlations for the intra- and inter-observer comparisons for GLS(STE) were excellent, and those for GLS(MOD) were adequate. Conclusion The fractional LV endocardial border length change, GLS(MOD), showed sufficient agreement with GLS(STE) to justify its use as a substitute for the STE-derived global longitudinal strain. |
| Databáze: | OpenAIRE |
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