Phantom with multiple active points for ultrasound calibration
Phantom with multiple active points for ultrasound calibration
复制标题
具有多个用于超声校准的活动点的体模
DOI:
10.1117/1.jmi.5.4.045001
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发表时间:
2018
影响因子:
2.4
通讯作者:
Boctor, Emad M.
中科院分区:
文献类型:
--
作者:
Zhang, Haichong K.;Cheng, Alexis;Kim, Younsu;Ma, Qianli;Chirikjian, Gregory S.;Boctor, Emad M.
Accurate tracking and localization of ultrasound (US) images are used in various computer-assisted interventions. US calibration is a preoperative procedure to recover the transformation bridging the tracking sensor and the US image coordinate systems. Although many calibration phantom designs have been proposed, a limitation that hinders the resulted calibration accuracy is US elevational beam thickness. Previous studies have proposed an active-echo (AE)-based calibration concept to overcome this limitation by utilizing dynamic active US feedback from a single PZT element-based phantom, which assists in placing the phantom within the US elevational plane. However, the process of searching elevational midplane is time-consuming and requires dedicated hardware to enable “AE” functionality. Extending this active phantom, we present a US calibration concept and associated mathematical framework enabling fast and accurate US calibration using multiple “active” points. The proposed US calibration can simplify the calibration procedure by minimizing the number of times midplane search is performed and shortening calibration time. This concept is demonstrated with a configuration mechanically tracking a US probe using a robot arm. We validated the concept through simulation and experiment, and achieved submillimeter calibration accuracy. This result indicates that the multiple active-point phantom has potential to provide superior calibration performance for applications requiring high tracking accuracy.
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影响因子:
2.9
作者:
DETMER, PR;BASHEIN, G;STRANDNESS, DE
通讯作者:
STRANDNESS, DE
DOI:
--
发表时间:
2014
期刊:
International Conference on Medical Image Computing and Computer-Assisted Intervention
影响因子:
--
作者:
Xiaoyu Guo;Alexis Cheng;Haichong K. Zhang;Hyun;R. Etienne;E. Boctor
通讯作者:
E. Boctor
DOI:
--
发表时间:
2004
期刊:
IEEE International Symposium on Biomedical Imaging
影响因子:
--
作者:
E. Boctor;A. Viswanathan;M. Choti;R. Taylor;G. Fichtinger;Gregory Hager
通讯作者:
Gregory Hager
影响因子:
2.4
作者:
Cheng, Alexis;Guo, Xiaoyu;Zhang, Haichong K.;Kang, Hyun Jae;Etienne-Cummings, Ralph;Boctor, Emad M.
通讯作者:
Boctor, Emad M.
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
N. Ayache;S. Ourselin;A. Maeder
通讯作者:
A. Maeder