Comparison study of 3DUS-US and CT-US image fusion technology based on electromagnetic positioning
10.3760/cma.j.issn.1004-4477.2015.09.019
- VernacularTitle:三维超声-二维超声、CT-二维超声磁定位图像融合技术的比较
- Author:
Liujun LI
;
Xuqi HE
;
Rongqin ZHENG
;
Kai LI
;
Erjiao XU
;
Peishan GUAN
;
Zhongzhen SU
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Image fusion;
Tomography,X-ray computed;
Electromagnetic positioning;
Phantom
- From:
Chinese Journal of Ultrasonography
2015;(9):805-808
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the accuracy,convenience and repeatability of 3DUS-US and CT-US image fusion technology based on electromagnetic positioning.Methods A tissue-mimicking phantom was established and used to obtain ultrasound or CT volume images.Two different operators performed 3DUS-US and CT-US image fusion and repeated 10 times,respectively.The success rate,the registration error distance and fusion time of two techniques were recorded and compared between the different operators.Results The ultrasound and CT images of the phantom and its stability could meet the demands of this experiment.3DUS-US and CT-US image fusions were successful.The registration error distance of 3DUS-US image fusion was (1 .70 ± 0.42)mm and fusion time was (76.00 ± 9.99)s,they were obviously superior to CT-US (P = 0.014,P < 0.001 ).There were no significant differences between the two operators in the registration error distance and fusion time of 3DUS-US (P =0.508,P =0.5 1 7).But the registration error distance of CT-US image fusion in experienced operator was lower than the junior (P =0.009),and fusion time had not statistical difference between the two operators (P =0.234).Conclusions The technique of 3DUS-US automatic image fusion based on electromagnetic positioning has advantages of convenience and no experiential dependence comparing with CT-US in the phantom experiments,so it is worthy of being widely popularized in clinical application.
