Usefulness of automatic assessment for longitudinal strain to diagnose wild-type transthyretin amyloid cardiomyopathy.
Usefulness of automatic assessment for longitudinal strain to diagnose wild-type transthyretin amyloid cardiomyopathy.
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DOI：
10.1016/j.ijcha.2023.101227
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发表时间：
2023-08
影响因子：
2.9
通讯作者：
Matsui, Hirotaka
中科院分区：
文献类型：
--
作者：
Usuku, Hiroki;Yamamoto, Eiichiro;Sueta, Daisuke;Imamura, Kanako;Oike, Fumi;Marume, Kyohei;Ishii, Masanobu;Hanatani, Shinsuke;Arima, Yuichiro;Takashio, Seiji;Oda, Seitaro;Kawano, Hiroaki;Ueda, Mitsuharu;Matsui, Hirotaka
关键词：
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. 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 < 0.01 for both). Receiver operating characteristic curve analysis showed that the area under curve of the RapLSI evaluated by full-automatic assessment for predicting ATTR-CM was 0.70 (best cut-off point; 1.14 [sensitivity 63%, specificity 81%]), by semi-automatic assessment was 0.85 (best cut-off point; 1.00 [sensitivity, 66%; specificity, 100%]) and by manual assessment was 0.83 (best cut-off point; 0.97 [sensitivity, 72%; specificity, 97%]). There was no significant difference between the diagnostic accuracy of RapLSI estimated by semi-automatic assessment and that estimated by manual assessment. Semi-automatically assessed RapLSI is useful to diagnose ATTR-CM in terms of rapidity and diagnostic accuracy.
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DOI：
10.1016/s0735-1097(85)80475-7
发表时间：
1985-01-01
影响因子：
24
作者：
CUETOGARCIA, L;REEDER, GS;TAJIK, AJ
通讯作者：
TAJIK, AJ
影响因子：
3.8
作者：
Oike, Fumi;Usuku, Hiroki;Yamamoto, Eiichiro;Marume, Kyohei;Takashio, Seiji;Ishii, Masanobu;Tabata, Noriaki;Fujisue, Koichiro;Yamanaga, Kenshi;Sueta, Daisuke;Hanatani, Shinsuke;Arima, Yuichiro;Araki, Satoshi;Oda, Seitaro;Kawano, Hiroaki;Soejima, Hirofumi;Matsushita, Kenichi;Ueda, Mitsuharu;Fukui, Toshihiro;Tsujita, Kenichi
通讯作者：
Tsujita, Kenichi
影响因子：
39.3
作者：
Gonzalez-Lopez, Esther;Gallego-Delgado, Maria;Garcia-Pavia, Pablo
通讯作者：
Garcia-Pavia, Pablo
影响因子：
5.7
作者：
Phelan, Dermot;Collier, Patrick;Thomas, James D.
通讯作者：
Thomas, James D.
影响因子：
7.5
作者：
Liu, Dan;Hu, Kai;Weidemann, Frank
通讯作者：
Weidemann, Frank