| Purpose: This study is to observe the sensitivity and accuracy of color kinesis (CK) images on semi-quantitative regional wall motion (RWM) analysis at patients with coronary artery disease (CAD). Materials and Methods: 50 patients with CAD (40 males and 10 females, aged 56.7 ±9.5 yrs) were recruited in this study. Two dimensional echocardiography (2DE) and end-systolic CK images were recorded at parasternal long axis, apical four and two-chamber views respectively. 2DE images were reviewed by two experienced observers and the consensus 2D scores of RWM were used as standard. The same 2DE images were read and the RWM was scored by an less experienced observer (group 2D). Acquired CK images were reviewed among them separately (group CK1 and group CK2). The results of these three groups were compared with the 2D score standard. Results: Group CK1 and group CK2 had sensitivity of 98.1% and 98.8%, accuracy of 87.6% and 86.8% respectively in identifying abnormal segments, which were higher than group 2D (P<0.05). There was no significant difference between group CK1 and group CK2. The reproducibility of two CK groups was higher than group 2D (P<0.05). Conclusion: CK is a relatively accurate and sensitive method in semi-quantitative assessment of RWM of CAD patients, with higher inter-observer reproducibility and less operator-dependence. |
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