Application of Dual-source CT Three-dimensional Stereo Location Combined with Low-dose Scanning in Lung Puncture Biopsy
CHANG Feixia
ZHOU Zhihong
MA Xiaomei
ZHU Dalin
QIAN Jifang
Abstract：Objective:To evaluate the application value of dual-source computed tomography(CT)three-dimensional(3D)stereo localization combined with low-dose scanning in lung biopsy to improve the success rate of puncture and reduce radiation dose.Methods:Sixty patients who underwent CT-guided lung biopsy in our hospital between June 2024 and October 2024 were selected and randomly divided into control and experimental groups(30/group).The control group underwent conventional CT positioning combined with routine-dose scanning,whereas the experimental group underwent dual-source 3D stereotactic CT positioning combined with low-dose scanning.The puncture success rate,operation time,radiation dose,and complication rates were compared between groups.Results:The experimental group had 29 successful punctures(29/30),and the control group had 27 successful cases(27/30).The success rate of the experimental group was slightly higher than that of the control group,but the difference was not statistically significant.The operation time in the experimental group was(20.6±0.596)min,significantly shorter than 30.33±0.687 min in the control group,with a statistically significant difference.The experimental group had three complications(3/30),while the control group had seven(7/30).The complication rate in the experimental group was slightly lower than that in the control group,but the difference was not statistically significant.The volume CT dose index(CTDIvol),dose-length product(DLP),and average effective dose(ED)in the experimental group were(2.443±0.055)mGy,(18.653±0.686)mGy·cm,and(0.317±0.012)mSv,respectively.In the control group,these values were(4.958±0.031)mGy,(42.580±0.544)mGy·cm,and(0.724±0.009)mSv,respectively.The radiation dose in the experimental group was significantly lower than that in the control group.Conclusion:Dual-source CT 3D stereo location combined with low-dose scanning provides significant advantages for lung biopsies.This can significantly improve the accuracy of puncture positioning,reduce the occurrence of complications,reduce the radiation dose,and improve the puncture success rate.This technique offers a safer and more effective approach for the diagnosis and treatment of lung diseases and may be considered for broader implementation in clinical practice.
Keywords：dual-source CTlow-dosethree-dimensionallung puncture biopsy
Publication Date：2025-09-30
Online Publishing Date：2025-10-28(First online date of this platform, not the publication date of the document)
Pages：7( 929-935 )