本文關(guān)鍵詞：基于對(duì)稱(chēng)性的頜骨復(fù)位方法研究及應(yīng)用　出處：《圖學(xué)學(xué)報(bào)》2016年03期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 計(jì)算機(jī)輔助手術(shù) 頜骨復(fù)位 網(wǎng)格分割 對(duì)稱(chēng)性檢測(cè)

【摘要】：針對(duì)嚴(yán)重錯(cuò)位骨折的頜骨復(fù)位口腔外科手術(shù),提出一種幫助醫(yī)生進(jìn)行術(shù)前規(guī)劃和準(zhǔn)備的破損頜骨復(fù)位方法。首先使用移動(dòng)立方體(MC)算法從患者CT圖像中提取頜骨的面片模型;然后結(jié)合圖割算法、形狀直徑函數(shù)(SDF)描述子和混合高斯模型的交互式分割方法,允許醫(yī)生通過(guò)簡(jiǎn)單的勾畫(huà)快速分割出破損骨塊;最后基于頜骨的對(duì)稱(chēng)性特性自動(dòng)完成破損骨塊復(fù)位。通過(guò)破損骨塊復(fù)位完成頜骨模型重構(gòu),能完整保留對(duì)醫(yī)生非常重要的骨折線信息。該方法已應(yīng)用于自主開(kāi)發(fā)的計(jì)算機(jī)輔助破損頜骨復(fù)位系統(tǒng),并使用安徽醫(yī)科大學(xué)附屬醫(yī)院的患者數(shù)據(jù)進(jìn)行了測(cè)試,結(jié)果表明了該方法的有效性。
[Abstract]:Maxillary reduction and oral surgery for severe dislocation fracture. A reduction method of broken jaw bone is proposed to help doctors to plan and prepare before operation. Firstly, the facial model of jaw is extracted from the CT image of patients by moving cube (MCMC) algorithm. Then, an interactive segmentation method based on graph cutting algorithm, shape diameter function (SDF) descriptor and mixed Gao Si model is proposed, which allows doctors to quickly segment broken bone pieces by simple sketching. Finally, based on the symmetry characteristics of the jaw bone, the broken bone mass is automatically reduced. The reconstruction of the broken bone model is completed by the broken bone block reduction. The method has been applied to the self-developed computer-aided reduction system of broken jaw and has been tested using patient data from the affiliated Hospital of Anhui Medical University. The results show that the method is effective.
【作者單位】： 合肥工業(yè)大學(xué)計(jì)算機(jī)與信息學(xué)院;合肥工業(yè)大學(xué)信息工程系;安徽醫(yī)科大學(xué)第四附屬醫(yī)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(11305205,61370167,61305093) 中石油-中國(guó)科學(xué)院重大戰(zhàn)略合作項(xiàng)目(2015A-4812)
【分類(lèi)號(hào)】：TP391.7;R782.4
【正文快照】： 頜骨(如圖1所示)因具有形態(tài)不規(guī)則、骨縫多、骨質(zhì)薄弱等特點(diǎn),易在運(yùn)動(dòng)、交通事故等過(guò)程中受到撞擊而出現(xiàn)嚴(yán)重移位骨折,因此頜骨的復(fù)位與固定是非常普遍的口腔科手術(shù)[1]。CT圖像已被廣泛用于頜骨外科手術(shù)的術(shù)前檢查和術(shù)后效果評(píng)估,近年來(lái)計(jì)算機(jī)輔助手術(shù)(computer aidedsurgery,

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1 王杭;宋福民;計(jì)寶輝;田衛(wèi)東;;計(jì)算機(jī)輔助手術(shù)技術(shù)在口腔頜面畸形整復(fù)的應(yīng)用[A];第七屆中國(guó)醫(yī)師協(xié)會(huì)美容與整形醫(yī)師大會(huì)論文集[C];2010年

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