| Autor: |
Hiroki Usuku, Eiichiro Yamamoto, Daisuke Sueta, Kanako Imamura, Fumi Oike, Kyohei Marume, Masanobu Ishii, Shinsuke Hanatani, Yuichiro Arima, Seiji Takashio, Seitaro Oda, Hiroaki Kawano, Mitsuharu Ueda, Hirotaka Matsui, Kenichi Tsujita |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
International Journal of Cardiology: Heart & Vasculature, Vol 47, Iss , Pp 101227- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2352-9067 |
| DOI: |
10.1016/j.ijcha.2023.101227 |
| Popis: |
Background: Left ventricular (LV) apical sparing by transthoracic echocardiography (TTE) has not been widely accepted to diagnose transthyretin amyloid cardiomyopathy (ATTR-CM), because it is time consuming and requires a level of expertise. We hypothesized that automatic assessment may be the solution for these problems. Methods-and-Results: We enrolled 63 patients aged ≥70 years who underwent 99mTc-labeled pyrophosphate (99mTc-PYP) scintigraphy on suspicion of ATTR-CM and performed TTE by EPIQ7G, and had enough information for two-dimensional speckle tracking echocardiography at Kumamoto University Hospital from January 2016 to December 2019. LV apical sparing was described as a high relative apical longitudinal strain (LS) index (RapLSI). Measurement of LS was repeated using the same apical images with three different measurement packages as follows: (1) full-automatic assessment, (2) semi-automatic assessment, and (3) manual assessment. The calculation time for full-automatic assessment (14.7 ± 1.4 sec/patient) and semi-automatic assessment (66.7 ± 14.4 sec/patient) were significantly shorter than that for manual assessment (171.2 ± 59.7 sec/patient) (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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