Abstract: In order to explore the effect of acoustic contrast-enhanced evaluation on left ventricular thickness and improve the accuracy of clinical measurement of wall thickness, 94 patients with cardiology were selected as subjects from January 2018 to May 2019. The patients were divided into two groups according to the random number table method. The control group (47 cases) received two-dimensional echocardiography. The observation group (47 cases) received left heart contrast echocardiography. The left ventricular wall was divided into 18 segments, and the difference in accuracy between the two groups was compared. There were significant differences in the wall thickness between the two groups in the apical two-chamber (A2CH) section and the 3rd, 6th, 15th, and 18th stages of systolic phase (P<0.05). There were significant differences between the two groups in the wall thickness of the 4th, 10th, 13th and 16th stages of apical period and the 4th, 10th and 16th stages of systolic phase in the apical three-chamber (A3CH) section (P<0.05). There were significant differences in the wall thickness of the 5th, 14th stages of the apical period of the apical four-chamber view (A4CH) and the 5th, 17th stages of the systolic phase between the two groups (P<0.05). Two-dimensional echocardiography has accurate and reliable measurements in the 1st, 2nd, 7th, 8th, and 11th segments of the diastolic phase and the 1st, 2nd, 7th, 8th, 9th, 11th, 12th, 13th, and 14th segments of the systolic phase, while the left cardiac echocardiography can provide a more accurate left ventricular thickness index, which is of great significance to improve the accuracy of clinical detection of left ventricular wall thickness.

Key words: left ventricular thickness, two-dimensional echocardiography, contrast echocardiography