Comparison of the application effect of different scanning methods in 64-slice spiral CT angiography examinations
10.3969/j.issn.1002-1671.2025.04.032
- VernacularTitle:不同扫描方法在64排螺旋CT血管成像检查中的应用效果对比
- Author:
Wenting KE
1
;
Xihao YE
Author Information
1. 浙江省台州医院放射科,浙江 台州 317000
- Publication Type:Journal Article
- Keywords:
computed tomography;
computed tomography angiography;
real-time vascular threshold detection;
low-dose contrast agent peak tracking
- From:
Journal of Practical Radiology
2025;41(4):683-686
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application effect of real-time vascular threshold detection and low-dose contrast agent peak tracking method via 64-slice spiral computed tomography angiography(CTA).Methods A total of 96 patients who underwent 64-slice spiral CT head CTA examination were selected,and all patients were divided into real-time vascular threshold detection group(n=48)and low-dose contrast agent peak tracking group(n=48)according to different scanning methods.The real-time vascular threshold detection group performed the real-time vascular threshold detection method,and the low-dose contrast agent peak tracking group used the low-dose contrast agent peak tracking method,the fulfillment diagnostic rate and radiation dose index between the two groups were compared.Results The fulfillment diagnostic rate of the low-dose contrast agent peak tracking group was significantly higher than that of the real-time vascular threshold detection group(P＜0.05).The volume CT dose index(CTDIvol),dose length product(DLP),and total radiation dose of the low-dose contrast agent peak tracking group were significantly higher than those of the real-time vascular threshold detection group(P＜0.05).Conclusion The low-dose contrast agent peak tracking method can be used in the clinic after substantially improving the image quality and diagnostic rate,and the real-time vascular threshold detection can save the contrast agent consumption,reduce the patient's radiation dose,save time,and benefit the patient's prognosis.
