Self-made reverse leveling device for assisting CT-guided puncture:Phantom experiment
10.13929/j.issn.1672-8475.2025.07.010
- VernacularTitle:自制逆向调平装置用于辅助CT引导下穿刺:体模实验
- Author:
Feng WANG
1
;
Jianyuan QUAN
1
;
Jun LI
1
;
Junjie ZHANG
1
;
Liqin ZHANG
1
;
Liye LIU
1
Author Information
1. 武警山西总队医院医学影像科,山西 太原 030006
- Publication Type:Journal Article
- Keywords:
tomography,X-ray computed;
punctures;
self-developed reverse leveling device
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(7):477-480
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effect of the self-made reverse leveling device for assisting CT-guided puncture of phantom.Methods The reverse leveling device was made using protractor base,leveling bubble,puncture needle fixator,protractor and protractor pointer,and a puncture phantom was self-made with 18K foam plastic.Using a random function to set the puncture angle,3 physicians performed each 50 punctures at different angles respectively on the puncture phantom without assistance(control group)or under assistance of the self-made reverse leveling device(experimental group),and the absolute values of the errors in angles of puncture needle at head-foot and left-right directions measured on CT among 3 physicians were observed and compared between groups.Taken the absolute values of puncture angle errors at head-foot and left-right directions both≤3° as criteria of qualified puncture,the puncture qualification rates were calculated and compared between groups.Results There was no significant difference of the absolute values of puncture angle error at head-foot or left-right direction with or without assistance among 3 physicians(all P＞0.05).In experimental group,the absolute values of puncture angle error at head-foot and left-right directions were all lower than(both P＜0.001),while the puncture qualification rate was higher than those in control group(52.00%[78/150]vs.4.67%[7/150],χ2=82.752,P＜0.001).Conclusion The self-made reverse leveling device could improve the accuracy of CT-guided puncture of phantom.
