Clinacal value of 256-slice spiral CT triple examination in the diagnosis of acute chest pain

ZHANG Zhi; LIU Tao; FU Jianli; ZHANG Wei

Abstract：Objective To analyze and investigate the clinical value of 256-slice MSCTA triple examination. At the same time, we analyzed the radiotion dose to provide evidence for low-dose MSCTA inspection. Methods We collected 50 patients of triple examination as study group, compared to 40 cases with pure 256-slice MSCT coronary angiography, 30 cases with pulmonary artery imaging and 20 cases with aortic imaging. The results from the above examinations were analyzed to evaluate whether or not the quality of the images could meet the need of the clinical diagnosis. At the same time, we calculated the radiation dose. Analyses were performed using the statistical software (SPSS, version 16 for Windows). A P value less than 0.01 was indicative of a statistically significant difference. Results The imaging quality of triple examination was compared with control group, there was no significant differenceere (P>0.05 ). As for radiation dose, when study group compared with coronary group, there was statistically significant (P<0.01); But for the study group and the group aorta, pulmonary artery group, there was no significant difference (P>0.05). Conclusion The examination of 256-slice CT can show coronary artery, pulmonary artery, aorta at the same time. The image quality of coronary artery, aorta and pulmonary artery are all excellent. There is no significant difference between the image quality of the single coronary artery, aorta imaging and the unified examination of the MSCT, which has important clinical value. Although the radiation dose in MSCT chest pain triple check than simply coronary arteries, the aorta and pulmonary examination is high and the three kinds of contrast are much lower doses examined separately. This provides a basis for clinic in low-dose MSCTA examination.