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[1]楊鵬,魏秋實(shí),陳鎮(zhèn)秋,等.基于多模態(tài)圖像配準(zhǔn)技術(shù)構(gòu)建半骨盆全髖關(guān)節(jié)有限元模型[J].中醫(yī)正骨,2017,29(05):1-6.
　YANG Peng,WEI Qiushi,CHEN Zhenqiu,et al.Construction of finite element models of hemipelvis and total hip joint using multi-modality image registration technique[J].The Journal of Traditional Chinese Orthopedics and Traumatology,2017,29(05):1-6.
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基于多模態(tài)圖像配準(zhǔn)技術(shù)構(gòu)建半骨盆全髖關(guān)節(jié)有限元模型()
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《中醫(yī)正骨》[ISSN:1001-6015/CN:41-1162/R]

卷:
第29卷
期數(shù):
2017年05期
頁(yè)碼:
1-6
欄目:
基礎(chǔ)研究
出版日期:
2017-05-20

文章信息/Info

Title:
Construction of finite element models of hemipelvis and total hip joint using multi-modality image registration technique
作者:
楊鵬; 魏秋實(shí); 陳鎮(zhèn)秋; 王鼎; 陳達(dá); 何偉; 張慶文
廣州中醫(yī)藥大學(xué)第一附屬醫(yī)院,廣東 廣州 510405
Author(s):
YANG Peng; WEI Qiushi; CHEN Zhenqiu; WANG Ding; CHEN Da; HE Wei; ZHANG Qingwen
The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine,Guangzhou 510405,Guangdong,China
關(guān)鍵詞:
髖關(guān)節(jié);  有限元分析;  圖像配準(zhǔn)
Keywords:
Key words hip joint;  finite element analysis;  image registration
摘要:
目的:基于多模態(tài)圖像配準(zhǔn)技術(shù)利用CT、MRI圖像建立半骨盆全髖關(guān)節(jié)有限元模型。方法:采集1位健康女性志愿者同一體位下的CT和MRI圖像,以DICOM格式保存。先采用Mimics16.0醫(yī)學(xué)影像軟件和Geomagic-Studio11逆向工程軟件以CT數(shù)據(jù)建立髂骨、股骨骨性三維模型,再利用Solidworks軟件將骨性三維模型與MRI圖像進(jìn)行配準(zhǔn)融合,重建與之匹配的髖臼軟骨和股骨頭表面軟骨三維模型,并在模型上標(biāo)記髖關(guān)節(jié)周圍韌帶、肌肉附著點(diǎn)。將數(shù)據(jù)導(dǎo)入Abaqus6.14軟件建立半骨盆全髖關(guān)節(jié)有限元模型,分析模擬雙腿站立位單側(cè)髖關(guān)節(jié)受力情況下(1.6倍體重,800 N)髖關(guān)節(jié)應(yīng)力分布情況。結(jié)果:建立的半骨盆全髖關(guān)節(jié)三維有限元模型,包含髂骨和股骨近端的皮質(zhì)骨、松質(zhì)骨、關(guān)節(jié)軟骨、韌帶和肌肉共5部分三維子模型,涉及122 363個(gè)單元、216 149個(gè)節(jié)點(diǎn)。在800 N載荷下,髖關(guān)節(jié)應(yīng)力大小和分布與以往研究結(jié)果相近。結(jié)論:基于多模態(tài)圖像配準(zhǔn)技術(shù)利用CT、MRI圖像建立的半骨盆全髖關(guān)節(jié)有限元模型,能很好地模擬髖部骨骼、軟骨的形態(tài),并較為真實(shí)地反映髖關(guān)節(jié)的力學(xué)性能,具有一定的科研及臨床價(jià)值。
Abstract:
ABSTRACT Objective:To build the finite element models of hemipelvis and total hip joint by using multi-modality image registration technique with CT and MRI images.Methods:The CT and MRI images of a healthy female volunteer were collected in the same body position and were saved in DICOM format.A osseous three-dimensional model of ilium and femur was built by using Mimics 16.0 medical image software and Geomagic-Studio 11 reverse engineering software and it was based on CT data.Then the osseous three-dimensional model image and MRI images were matched and fused by using Solidworks software to rebuild the matched three-dimensional model of acetabular cartilage and femoral head cartilage.The attachment points of ligaments and muscles around the hip joint were marked on the model.The Data were imported into the Abaqus 6.14 software and a finite element model of hemipelvis and total hip joint was obtained.The stress distribution of unilateral hip joint in analogic standing position(1.6 times of bodyweight,800 N)was analyzed.Results:The three-dimensional finite element model of hemipelvis and total hip joint consists of 5 three-dimensional submodels,including ilium and proximal femoral cortical bones,cancellous bones,articular cartilages,ligaments and muscles,and involved 122 363 units and 216 149 nodes.The stress value and stress distribution of hip joint at the load of 800 N were similar to previous research results.Conclusion:The finite element model of hemipelvis and total hip joint built by using multi-modality image registration technique with CT and MRI images can correctly simulate the morphology of hip bone and cartilage,and it can literally reflect the hip mechanical properties of hip joint,so it has some values in scientific research and clinic.

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更新日期/Last Update: 2017-05-20