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- W3030273149 abstract "ObjectiveTo evaluate the necessity and feasibility of low-dose dual-source CT coronary angiography imaging in the evaluation of high body mass index (BMI) patients.MethodsSixty patients with BMI ≥28 kg/m2 and heart rate 65-90 beats/min were selected, and they were divided into prospective electrocardiography gated scanning group and retrospective electrocardiography gated scanning group by random digits table method with 30 cases each. The image quality, CT dose weighing index (CTDI) and dose length product (DLP) were compared between 2 groups.ResultsThere was no statistical difference in the score of coronary image quality between retrospective electrocardiography gated scanning group and prospective electrocardiography gated scanning group: (3.47±0.61) scores vs. (3.18±0.94) scores, P>0.05. The CTDI and DLP in prospective electrocardiography gated scanning were significantly lower than those that in retrospective electrocardiography gated scanning: (32.44±10.18) mGy vs. (45.86±15.34) mGy and (458.00±95.27) mGy/cm vs. (532.15±154.43) mGy/cm, and there were statistical differences (P<0.05).ConclusionFor high BMI patients, different low-dose dual-source CT scanning, especially prospective electrocardiography gated scanning, can guarantee image quality and reduce the radiation dose and the radiation damage at the same time.Key words: Tomography, X-ray computed; Body mass index; Radiation dosage" @default.
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- W3030273149 date "2015-10-05" @default.
- W3030273149 modified "2023-09-24" @default.
- W3030273149 title "Application of low-dose dual-source CT prospective electrocardiography gated scanning coronary imaging in evaluation of high body mass index patients" @default.
- W3030273149 doi "https://doi.org/10.3760/cma.j.issn.1673-4904.2015.10.011" @default.
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