Int J CARS (2017) 12:1585–1597 DOI 10.1007/s11548-017-1603-8 ORIGINAL ARTICLE BEM-based simulation of lung respiratory deformation for CT-guided biopsy 1 2 2 2 Dong Chen · Weisheng Chen · Lipeng Huang · Xuegang Feng · 3 1 Terry Peters · Lixu Gu Received: 10 October 2016 / Accepted: 27 April 2017 / Published online: 10 May 2017 © CARS 2017 Abstract model. Results reveal that it is possible to predict the lung Purpose Accurate and real-time prediction of the lung and motion with ASSD of 1.9 ± 0.8 mm and a mean TRE of lung tumor deformation during respiration are important con- 2.5±2.1 mm at largest over the entire respiratory cycle. In the siderations when performing a peripheral biopsy procedure. CT-/electromagnetic-guided biopsy experiment, the whole However, most existing work focused on ofﬂine whole lung process was assisted by our BEM model and ﬁnal puncture simulation using 4D image data, which is not applicable in errors in two studies were 3.1 and 2.0 mm, respectively. real-time image-guided biopsy with limited image resources. Conclusion The experiment results reveal that both the In this paper, we propose a patient-speciﬁc biomechanical accuracy of simulation and real-time performance meet the model based on the boundary
International Journal of Computer Assisted Radiology and Surgery – Springer Journals
Published: May 10, 2017
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