MR三維序列在膝關(guān)節(jié)軟骨成像中的對(duì)比研究及臨床應(yīng)用
發(fā)布時(shí)間:2021-01-26 00:03
目的:通過(guò)比較膝關(guān)節(jié)軟骨信噪比(SNR)和對(duì)比噪聲比(CNR),分析MR三維序列顯示關(guān)節(jié)軟骨的效果;以關(guān)節(jié)鏡(或手術(shù))結(jié)果為金標(biāo)準(zhǔn),比較各序列診斷膝關(guān)節(jié)軟骨病變的能力,探討關(guān)節(jié)軟骨成像的最佳序列。方法:選取16名健康志愿者(膝關(guān)節(jié)無(wú)外傷史、無(wú)任何臨床癥狀,查體陰性,男、女各8例,年齡8-32歲,平均年齡22.25±7.58歲),常規(guī)MR掃描后行三個(gè)三維序列矢狀位掃描,即:3D-FFE-SPIR、3D-FFE-WATS以及3D-Balance-FFE序列。分別測(cè)量上述各序列關(guān)節(jié)軟骨、骨髓、滑液、肌肉以及背景噪聲信號(hào)強(qiáng)度,依據(jù)公式計(jì)算相應(yīng)組織的信噪比(SNR)和對(duì)比噪聲比CNR)。另外,對(duì)臨床可疑膝關(guān)節(jié)損傷的病人117例(男43例,女性74例,年齡25~72歲,平均49.26±6.45歲,左膝56個(gè),右膝61個(gè))行常規(guī)MR序列和3D-FFE-SPIR、3D-FFE-WATS以及3D-Balance-FFE序列檢查,擇取其中52個(gè)于檢查后一周內(nèi)做了關(guān)節(jié)鏡(或者手術(shù))檢查與治療的膝關(guān)節(jié)作為研究對(duì)象。采用改良式Noyes分級(jí)標(biāo)準(zhǔn)記錄MR各成像序列和膝關(guān)節(jié)鏡(或手術(shù))顯示各區(qū)域(髕骨關(guān)節(jié)面、股骨滑...
【文章來(lái)源】:西南醫(yī)科大學(xué)四川省
【文章頁(yè)數(shù)】:63 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
*d:膝關(guān)節(jié)正常軟骨的最大信號(hào)強(qiáng)度投影
Flgurel卜d:Thenormalcartilageofknee.ThenormaleartilageaPPear”high,lowandhigh,,threelayersignalin3D一SPIRand3D一FFE一FFE一WATSsequenee(redarrows);thenormaleartilageaPPearhomogeneouslymediumsignalandthecapsulesynovialfiuidapPearhighsignal(greenarrow)andsubchondrallinearlowsignaleanbeseenin3D一FFEsequenee(bluearrow).
Flgurel卜d:Thenormalcartilageofknee.ThenormaleartilageaPPear”high,lowandhigh,,threelayersignalin3D一SPIRand3D一FFE一FFE一WATSsequenee(redarrows);thenormaleartilageaPPearhomogeneouslymediumsignalandthecapsulesynovialfiuidapPearhighsignal(greenarrow)andsubchondrallinearlowsignaleanbeseenin3D一FFEsequenee(bluearrow).
本文編號(hào):3000122
【文章來(lái)源】:西南醫(yī)科大學(xué)四川省
【文章頁(yè)數(shù)】:63 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
*d:膝關(guān)節(jié)正常軟骨的最大信號(hào)強(qiáng)度投影
Flgurel卜d:Thenormalcartilageofknee.ThenormaleartilageaPPear”high,lowandhigh,,threelayersignalin3D一SPIRand3D一FFE一FFE一WATSsequenee(redarrows);thenormaleartilageaPPearhomogeneouslymediumsignalandthecapsulesynovialfiuidapPearhighsignal(greenarrow)andsubchondrallinearlowsignaleanbeseenin3D一FFEsequenee(bluearrow).
Flgurel卜d:Thenormalcartilageofknee.ThenormaleartilageaPPear”high,lowandhigh,,threelayersignalin3D一SPIRand3D一FFE一FFE一WATSsequenee(redarrows);thenormaleartilageaPPearhomogeneouslymediumsignalandthecapsulesynovialfiuidapPearhighsignal(greenarrow)andsubchondrallinearlowsignaleanbeseenin3D一FFEsequenee(bluearrow).
本文編號(hào):3000122
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