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首頁(yè)> 美國(guó)衛(wèi)生研究院文獻(xiàn)>Journal of Contemporary Brachytherapy >Multi-axis dose accumulation of noninvasive image-guided breast brachytherapy through biomechanical modeling of tissue deformation using the finite element method
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Multi-axis dose accumulation of noninvasive image-guided breast brachytherapy through biomechanical modeling of tissue deformation using the finite element method

機(jī)譯:通過(guò)使用有限元方法對(duì)組織變形進(jìn)行生物力學(xué)建模無(wú)創(chuàng)圖像引導(dǎo)式乳房近距離放射療法的多軸劑量累積

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摘要

PurposeNoninvasive image-guided breast brachytherapy delivers conformal HDR 192Ir brachytherapy treatments with the breast compressed, and treated in the cranial-caudal and medial-lateral directions. This technique subjects breast tissue to extreme deformations not observed for other disease sites. Given that, commercially-available software for deformable image registration cannot accurately co-register image sets obtained in these two states, a finite element analysis based on a biomechanical model was developed to deform dose distributions for each compression circumstance for dose summation.
機(jī)譯:目的無(wú)創(chuàng)圖像引導(dǎo)乳房近距離放射療法在壓迫乳房,并在頭尾和內(nèi)側(cè)-外側(cè)方向上進(jìn)行保形的HDR 192 Ir近距離放射療法。該技術(shù)使乳房組織遭受其他疾病部位未觀察到的極端變形。鑒于可商購(gòu)的可變形圖像配準(zhǔn)軟件無(wú)法精確地共配準(zhǔn)在這兩種狀態(tài)下獲得的圖像集,因此開(kāi)發(fā)了基于生物力學(xué)模型的有限元分析,以使每種壓縮情況下的劑量分布變形以求和。

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