田和强, 吴冬梅, 王继虎, 杜志江, 孙立宁. 基于电磁定位的手术导航探针可视化与实时跟踪技术[J]. 机器人, 2011, 33(1): 59-65..
TIAN Heqiang, WU Dongmei, WANG Jihu, DU Zhijiang, SUN Lining. Visualization and Real-time Tracking Technologies of the Probe Used in Surgical Navigation Based on Electromagnetic Positioning. ROBOT, 2011, 33(1): 59-65..
Abstract:The visualization and real-time tracking technologies of the probe in surgical navigation system are studied.The electromagnetic positioning method is introduced,and the probe with data acquisition function is designed based on electromagnetic positioning.Firstly,the probe model is constructed by means of three-dimensional solid modeling technology, and the transformation from the solid geometry model to the three-dimensional surface models is completed.Secondly,the probe tip is registered using the pivot calibration method and the registration accuracy is also tested.Then,the registration between the CT model and the patients site is realized intraoperatively by means of iterative closest point(ICP) algorithm, and simulation analysis and accuracy verification are carried out.Finally,according to the preoperatively registered position and orientation,the spatial location of the probe is tracked in real-time and accurately,and is displayed in the system.The results show that the data acquisition function and registration accuracy of the probe,as well as the effect of registration algorithms can meet the needs for surgical navigation.
[1] Nolte L P,Beutler T.Basic principles of CAOS[J]. Injury,2004,35(S1):6-16.
[2] 王田苗,胡磊,王满宜,等.矫形外科微创手术与导航技术研究进展[J]. 高技术通讯,2005,15(4):102-106.Wang T M,Hu L,Wang M Y,et al.State of the art of minimally invasive surgery and navigation technology in orthopaedics[J]. High Technology Letters,2005,15(4):102-106.
[3] 林艳萍,张文强,王成焘.手术导航系统中器械的可视化与实时跟踪[J]. 生物医学工程学杂志,2006,23(5):995-998.Lin Y P,Zhang W Q,Wang C T.Visualization and real-time tracking of the instruments in surgical navigation system[J]. Journal of Biomedical Engineering,2006,23(5):995-998.
[4] Nixon M A,McCallum B C,Fright W R,et al.The effects of metals and interfering fields on electromagnetic trackers[J]. Presence,1998,7(2):204-218.
[5] Baluja S,Simon D A.Evolution-based methods for selecting point data for object localization:Applications to computerassisted surgery[J]. Applied Intelligence,1998,8(1):7-19.
[6] Lavallee S,Szeliski R.Recovering the position and orientation of free-form objects from image contours using 3D distance maps[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,1995,17(4):378-390.
[7] Birkfellner W,Watzinger E Wanschitz F,et al.Calibration of tracking systems in a surgical environment[J]. IEEE Transactions on Medical Imaging,1998,17(5):737-742.
[8] 王成焘,陈晓军,钱理为.数字医学与计算机辅助手术[J]. 中国医疗器械杂志,2007,31(5):313-323.Wang C T,Chen X J,Qian L W.Digital medicine and computeraided surgery[J]. Chinese Journal of Medical Instrumentation,2007,31(5):313-323.
[9] 于万民,王哈力,郑洪平.PC机与PIC单片机串行通讯的实现[J]. 现代电子技术,2003(18):26-28.Yu W M,Wang H L,Zheng H P.Serial communication realization of person computer and PIC single chip[J]. Modern Electronics Technique,2003(18):26-28.
[10] 李朝青.PC机及单片机数据通信技术[M]. 北京:北京航空航天大学出版社,2002.Li C Q.PC and MCU data communication technology[M]. Beijing:Beijing University of Aeronautics and Astronautics Press,2002.
[11] Boctor E M,Webster R J,Mathieu H,et al.Virtual remote center of motion control for needle placement robot[C] /International Conference on Medical Image Computing and Computer-Assisted Intervention.Berlin,Germany:Springer-Verlag,2003:157-164.
[12] Hassfeld S,Muhling J.Computer assisted oral and maxillofacial surgery-A review and an assessment of technology[J]. International Journal of Oral and Maxillofacial Surgery,2001,30(1):2-13.
[13] Besl P J,McKay N D.A method for registration of 3-D shapes[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,1992,14(2):239-256.