Intraclass correlation coefficients for parameters
| Angle-PW | Distance-PW | |||||||
| Left decubitus | Right decubitus | Left decubitus | Right decubitus | |||||
| End-diastole | End-systole | End-diastole | End-systole | |||||
| Intraobserver | 0.989 | 0.996 | 0.992 | 0.996 | 0.986 | 0.988 | ||
| Interobserver | 0.994 | 0.994 | 0.984 | 0.987 | 0.984 | 0.992 | ||
Angle-PW, the end-diastolic angle between the left ventricular posterior wall and the ultrasound beam; Distance-PW, the distance between the ultrasound transducer and the most distal part of left ventricular posterior wall.