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Echocardiographic Quantification of Regional Left Ventricular Wall Motion with Color Kinesis

陆 堃  廖京生  林 红  庞家传  阙绪光  吴妙玲

广州市中山医科大学附属第一医院超声科  510080

Lu Kum，Liao Jingsheng.Lin Hong，et al

<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />First Affiliated Hospital，Sun Yat－sen University of Medicine Sciences  Guangzhou  510080

ABSTRACT

　　Objective：To quantitatively analyse regional ventricular wall motion with color kinesis（CK）by a specially designed soft ware.

　　Methods：45 normal subjects and 15 old myocardial infarction patients were involved in this study.The end－systolic CK images of left ventricular midpapillary parasternal short axis view and apical four－chamber view were obtained from all subjects.And then regional fraction area change（RFAC）of every myocardial segment at specific phase during systolic cycle was calculated.

　　Resuits：CK displayed endocardial motion in a multicolor－band mode accurately.Patterns of CK images from normal subjects in the same kind of ultrasound views were relatively consistent.

　　Conclusion：RFAC is a good index to quantitate regional ventricular wall motion.It is a powerful tool for the dectection of abnormal wall segment in patients with coronary artery disease.

　　KEY WORDS： Echocardiogram  Color Kinesis  Coronary artery disease  Regional fraction area change