Application value of 64-slice spiral CT with multiplanar reconstruction in CT-guided percutaneous liver puncture for biopsy
Objective To investigate the application value of 64-slice spiral CT for multiplanar reconstruction(MPR)in CT-guided percutaneous liver puncture for biopsy.Methods Fifty-two patients who underwent liver puncture from January 2020 to December 2022 were selected as the study subjects.They were randomly assigned into the MPR group(n=26)and axial image group(n=26)using the randomized numerical table method.Conventional axial images were used to localize liver lesions in the axial image group,and the volumetric data were reconstructed in axial,sagittal,and coronal directions for guiding the trajectory of the puncture approach and localization of liver lesions in the MPR group.The number of intraoperative adjustments for the direction of needle insertion,accuracy of material extraction,postoperative complications,puncture time,puncture success rate,and postoperative pain were compared between the two groups.Results Patients in the MPR group had significantly less number of intraoperative adjustments for needle direction,shorter puncture time and less postoperative pain than those of the axial image group(P<0.05).The accuracy of material extraction and the puncture success rate in the MPR group were significantly higher than those of the axial image group without significant differences(P>0.05).The incidence of complications in the MPR group was significantly lower than that of the axial image group(3.85%vs 26.92%,P<0.05).The satisfaction rate of MPR group was significantly higher than that of the axial image group(96.15%vs 76.92%,P<0.05).Conclusion Compared with conventional axial image localization,64-slice spiral CT for multiplanar reconstruction(MPR)in CT-guided percutaneous liver puncture for biopsy achieves the goal of less number of intraoperative adjustments for needle direction,shorter puncture time,less postoperative pain,higher accuracy of material extraction and higher success rate of puncture.It also achieves lower incidence of complications and higher satisfaction rate.