Abstract：Objective To analyze the influencing factors of image quality of coronary angiography with 64-slice CT. Methods Eighty-nine patients with known or suspected CAD underwent CT coronary angiography using 64 multi-slice CT. The image quality in those cases was analyzed retrospectively to evaluate the influence of heart rate, fluctuation of heart rate during the scanning. The relationship between heart rate and the value of pitch was analyzed, and the application value of the override function was discussed. Results ① The patient’s heart rate and fluctuation were negatively related to the coronary image quality. ② There was corresponding relationship between the value of pitch and segment scan/reconstruction mode according to the heart rate. ③ Correct use of override function could improve the image quality of coronary. Conclusion The appropriate control of heart rate and fluctuation, the correct use of override function, and the corresponding selection of segment scan/reconstruction mode according to the heart rate could improve the image quality and reliability of coronary angiography.
赵坤，邵广瑞，王勇，侯代伦. MSCT冠状动脉成像质量的影响因素分析[J]. 中国医疗设备, 2014, 29(7): 7-10.
ZHAO Kun, SHAO Guang-rui, WANG Yong, HOU Dai-lun. Analysis about Influencing Factors of Image Quality of Coronary Angiography with Multi-Slice CT. China Medical Devices, 2014, 29(7): 7-10.
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