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- W2367717817 abstract "Objective To analyze the fluctuation of heart rate during the scanning and its influence on image quality in coronary angiography with 64-detector spiral CT.Methods A retrospective study was undertaken in 138 cases which had 64-detector spiral CT scan in coronary angiography. Fluctuation of heart rate during the scanning was recorded. 138 cases were divided into 4 groups(group A, fluctuation of heart rate was 0~4 times/ min; group B, fluctuation of heart rate was 5~9 times/ min ; group C, fluctuation of heart rate was 10~20 times/ min ; group D, fluctuation of heart rate20 times/ min ).The image quality of branches or segments of coronary arteries (total 1104) was compared between different groups. Results The fluctuation of heart rate less than 10 times/min was 89% in all cases. There was no significant differences( P0.05)in image quality between group A,B and C in the display of RCA1,RCA3,PDA,LMA,LAD,LCX1and LCX2.The image quality in group D was significantly lower than those in group A,B and C in the display of RCA1,RCA3,PDA,LMA,LAD,LCX1 and LCX2. The image quality in RCA2 was significant different among different groups (P0.05).Conclusion The fluctuation of heart rate in coronary angiography with 64-detector spiral CT is minor.The image quality of coronary artery begins to be poor when the fluctuation of heart rate is greater than 20 times/min especially RCA2." @default.
- W2367717817 created "2016-06-24" @default.
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- W2367717817 date "2007-01-01" @default.
- W2367717817 modified "2023-09-25" @default.
- W2367717817 title "Fluctuation of Heart Rate and Its Influence on Image Quality of 64-slice Spiral CT in Coronary Angiography" @default.
- W2367717817 hasPublicationYear "2007" @default.
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