口腔CT骨密度測(cè)量方法的設(shè)計(jì)與實(shí)現(xiàn)
[Abstract]:With the improvement of people's living standard and the aging of population, osteoporosis has been paid more and more attention, and dental implant technology has been widely used. Bone mineral density measurement is crucial in the diagnosis of osteoporosis and dental implants. There are many kinds of bone mineral density measurement techniques. In practical application, the method of measuring bone mineral density without phantom is simple, but the influence of muscle and fat can not be excluded, which brings some errors to the measurement results, and the repeatability of the results is poor. At present, oral CT plays a more and more important role in the measurement of bone mineral density (BMD). Based on oral quantitative CT, a method of in vitro calibration is proposed in this paper. There are two kinds of phantom: liquid model and solid model. Because of the complexity and high cost of making solid model, a simple and inexpensive liquid model is developed in this paper, in order to verify the feasibility of liquid body mold. The following works have been done: (1) the liquid model is scanned by oral CT machine to verify its uniformity. Ten layers of images are taken from the scanning image, and the results are compared and analyzed. It is found that the uniformity of the liquid model is very good. (2) the linearity of the liquid model is verified by scanning the liquid model and the solid model, and the fitting degree of the liquid model is higher than that of the solid model by comparing the ten layers of images in the scanning image. 0.9997. (3) scanning solid and liquid models and quality control phantom at the same time, taking ten layers of images from the scanning image, the difference of bone mineral density is between 3 and 5, and the maximum relative change is 2.91. (4) the liquid phantom is measured many times. From the comparison of the results of the ten layers of scanning images, we can see that the reproducibility and stability of the phantom are very good and can be maintained within half a year. (5) the liquid phantom and the bone sample are scanned simultaneously, which is compared with the ashing value of the bone sample, although the error is great. But the linear correlation reached 0.9, indicating that bone mineral density can well reflect the change of bone mineral. In order to verify the accuracy of bone mineral density (BMD) measured by oral CT, the measurement results of large spiral CT developed by Neussup were compared. The measurement error between oral CT and large spiral CT was within 0.2%, which could be ignored. In order to apply this method to clinical test, according to the design flow and realization principle, a volume model bone mineral density measurement software was successfully developed on quantitative CT.
【學(xué)位授予單位】:東北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類(lèi)號(hào)】:R816.98
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 王水娟;;462名嬰幼兒骨密度測(cè)量值分析[J];浙江預(yù)防醫(yī)學(xué);2010年11期
2 王立;張智海;李茂廷;;骨密度測(cè)量的精確度及其重要性[J];中國(guó)骨質(zhì)疏松雜志;2011年04期
3 ?藗;;骨密度測(cè)量?jī)x器臨床應(yīng)用與管理[J];中國(guó)醫(yī)療器械信息;2013年01期
4 袁啟明;國(guó)外骨密度測(cè)量技術(shù)的發(fā)展[J];世界產(chǎn)品與技術(shù);1995年03期
5 楊定焯,安珍;骨密度測(cè)量應(yīng)用中的幾個(gè)問(wèn)題[J];中國(guó)骨質(zhì)疏松雜志;2000年01期
6 許世梃,石四箴;新的骨密度測(cè)量技術(shù)在口腔醫(yī)學(xué)中的應(yīng)用[J];中國(guó)醫(yī)學(xué)影像技術(shù);2000年12期
7 楊定焯,尚家蕓,楊惠;骨密度測(cè)量的質(zhì)量控制及重要性[J];中國(guó)骨質(zhì)疏松雜志;2002年04期
8 楊定焯,尚家蕓;骨密度測(cè)量中質(zhì)量控制的意義和方法[J];國(guó)外醫(yī)學(xué)(內(nèi)分泌學(xué)分冊(cè));2003年02期
9 蔣宇宏,梅海清,周曉莉;前臂DXA骨密度測(cè)量的臨床應(yīng)用[J];山西職工醫(yī)學(xué)院學(xué)報(bào);2004年03期
10 俞秀華,涂梅,黃文艷;探討骨密度測(cè)量的精確度及其影響因素[J];中國(guó)骨質(zhì)疏松雜志;2004年04期
相關(guān)會(huì)議論文 前10條
1 程曉光;屈輝;;DXA骨密度測(cè)量中的質(zhì)量控制、校正和標(biāo)準(zhǔn)化[A];第八屆全國(guó)骨質(zhì)疏松年會(huì)暨第五屆全國(guó)鈣劑年會(huì)會(huì)議文集[C];2002年
2 王予生;過(guò)哲;趙海竹;王策;張磊;趙英威;程曉光;;脊柱定量CT重建參數(shù)對(duì)骨密度測(cè)量的影響分析[A];中華醫(yī)學(xué)會(huì)第三次骨質(zhì)疏松和骨礦鹽疾病中青年學(xué)術(shù)會(huì)議論文匯編[C];2011年
3 徐浩;弓健;陳健;王丹;黃鶴;謝金球;列潤(rùn)洪;羅勁祥;;雙側(cè)股骨上端DXA骨密度測(cè)量結(jié)果的比較[A];中華醫(yī)學(xué)會(huì)第三次全國(guó)骨質(zhì)疏松和骨礦鹽疾病學(xué)術(shù)會(huì)議暨骨質(zhì)疏松診斷技術(shù)繼續(xù)教育學(xué)習(xí)班論文匯編[C];2004年
4 楊定焯;尚家蕓;楊惠;;骨密度測(cè)量的質(zhì)量控制及重要性[A];中華醫(yī)學(xué)會(huì)第三次全國(guó)骨質(zhì)疏松和骨礦鹽疾病學(xué)術(shù)會(huì)議暨骨質(zhì)疏松診斷技術(shù)繼續(xù)教育學(xué)習(xí)班論文匯編[C];2004年
5 謝良駿;程木華;陳誼;;放射性核素伽馬射線對(duì)骨密度測(cè)量的影響[A];中華醫(yī)學(xué)會(huì)第九次全國(guó)核醫(yī)學(xué)學(xué)術(shù)會(huì)議論文摘要匯編[C];2011年
6 王文志;安珍;楊定焯;趙立強(qiáng);尚家蕓;馬錦富;沈江;;DXA骨密度測(cè)量部位的優(yōu)選分析[A];第九屆全國(guó)骨質(zhì)疏松年會(huì)暨第六屆全國(guó)鈣劑年會(huì)會(huì)議文集[C];2003年
7 楊定焯;尚家蕓;;骨密度測(cè)量中的質(zhì)量控制及其重要性[A];第八屆全國(guó)骨質(zhì)疏松年會(huì)暨第五屆全國(guó)鈣劑年會(huì)會(huì)議文集[C];2002年
8 欒金達(dá);戴陶;井華琴;;四種骨密度測(cè)量方法的比較[A];第一屆全國(guó)骨礦研究年會(huì)會(huì)議文集[C];2002年
9 龐眾;聞殿元;范偉萍;李榮年;;灘涂地區(qū)正常老年人骨密度測(cè)量結(jié)果[A];第八屆全國(guó)骨質(zhì)疏松年會(huì)暨第五屆全國(guó)鈣劑年會(huì)會(huì)議文集[C];2002年
10 賀揚(yáng)淑;;老年腎病患者骨密度改變及臨床意義——80例骨密度測(cè)量結(jié)果分析[A];骨質(zhì)疏松研究與防治文集[C];1994年
相關(guān)重要報(bào)紙文章 前2條
1 北京積水潭醫(yī)院放射科 程曉光 屈輝;骨密度測(cè)量值及存在問(wèn)題[N];健康報(bào);2001年
2 ;為您提供原發(fā)性骨質(zhì)疏松癥防治處方[N];健康報(bào);2002年
相關(guān)博士學(xué)位論文 前1條
1 蔣寶國(guó);DSCT雙能骨密度測(cè)量的實(shí)驗(yàn)研究[D];中國(guó)醫(yī)科大學(xué);2010年
相關(guān)碩士學(xué)位論文 前5條
1 王倩;口腔CT骨密度測(cè)量方法的設(shè)計(jì)與實(shí)現(xiàn)[D];東北大學(xué);2013年
2 邱蕾;雙能X射線骨密度測(cè)量方法分析研究[D];南華大學(xué);2011年
3 臧淵;腰椎旋轉(zhuǎn)對(duì)骨密度測(cè)量值影響的定量研究[D];第四軍醫(yī)大學(xué);2012年
4 弓健;雙側(cè)股骨近端DXA骨密度測(cè)量差異性的研究[D];暨南大學(xué);2006年
5 王新文;強(qiáng)直性脊柱炎QCT骨密度測(cè)量與CT分級(jí)的相關(guān)研究[D];山西醫(yī)科大學(xué);2010年
,本文編號(hào):2287116
本文鏈接:http://sikaile.net/yixuelunwen/yundongyixue/2287116.html