Clinical application value of single pass scanning using multi-slice spiral CT for polytrauma patients
10.3760/cma.j.cn112271-20240130-00036
- VernacularTitle:多层螺旋CT一次性扫描在多发创伤患者多部位检查中的价值
- Author:
Gang WANG
1
;
Ying ZHANG
;
Teng TANG
;
Hongyang DAI
;
Nan WANG
;
Mimi QIU
;
Hongwei XU
;
Fangfang XIA
;
Xinglin XIANG
;
Jian LI
Author Information
1. 西安凤城医院放射科，西安 710016
- Keywords:
Spiral CT;
Polytrauma;
Image quality;
Effective dose
- From:
Chinese Journal of Radiological Medicine and Protection
2024;44(8):693-698
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the clinical application value of single pass scanning using muti-slice spiral CT for polytrauma patients.Methods:Totally 60 polytrauma patients treated from January to November in 2023 were randomly enrolled in this study. They were categorized into an experimental group and a control group using a random number table, with 30 patients in each group. The patients in the experimental group underwent single pass scaning for the head, neck, chest, and abdomen, whereas those in the control group receiving separate scanning for various parts. Then, the noise, signal-to-noise ratio (SNR), and contrast-to-noise (CNR) of the CT images of both groups were recorded. Furthermore, the objective and subjective evaluation, volume CT dose index (CTDI vol), effective dose ( E), scanning time, and scan ranges of the images were compared between both groups. Results:Compared to the control group, the test group exhibited lower SNR of the head ( t = -5.47, P < 0.05) and higher SNR and CNR of the chest scans ( t = -5.95, -6.15, P < 0.05). Furthermore, the test group demonstrated decreased ED, CTDIvol, scanning time, and scan range, which dropped from 18.53 mSv to 13.81 mSv ( t = 3.29, P < 0.001), from 15.77 mGy to 10.59 mGy ( t = 4.48, P< 0.001), from 31.68 s to 10.97 s ( t = 6.95, P < 0.001), and from 64.92 cm to 45.21 cm ( t = 9.05, P < 0.001), respectively compared to the control group. Conclusions:Single pass CT scanning can reduce E, scanning time, and scan range in the treatment of polytrauma patients while ensuring the high quality of CT images, thus warranting wide clinical applications.
