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[1]李培嶺,趙振江,魏娟,等.不同成熟階段骨化性肌炎的MRI表現(xiàn)特征[J].中醫(yī)正骨,2022,34(05):38-42.
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不同成熟階段骨化性肌炎的MRI表現(xiàn)特征()
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《中醫(yī)正骨》[ISSN:1001-6015/CN:41-1162/R]

卷:
第34卷
期數(shù):
2022年05期
頁碼:
38-42
欄目:
影像診斷
出版日期:
2022-05-20

文章信息/Info

作者:
李培嶺1; 趙振江1; 魏娟1; 郭智萍2
(1.河南省洛陽正骨醫(yī)院/河南省骨科醫(yī)院,河南 鄭州 450016; 2.河南省慢病健康管理重點實驗室,河南 鄭州 451460)
關(guān)鍵詞:
骨化性肌炎;  磁共振成像
摘要:
目的:探討不同成熟階段骨化性肌炎(myositis ossificans,MO)的MRI表現(xiàn)特征。方法:回顧性分析49例經(jīng)病理檢查或隨訪證實的MO患者的病例資料。男35例,女14例。年齡6～90歲,中位數(shù)36歲。根據(jù)患者的X線片或CT片上MO病灶鈣化程度將其分為4個等級,統(tǒng)計MO的病變部位并總結(jié)不同等級MO的MRI表現(xiàn)特征。結(jié)果:本組49例,共53個病灶,病灶位于髖部17個、肘部14個、肩部1個、臀部6個、小腿6個、大腿4個、膝部3個、手部1個、踝部1個。病灶直徑0.5～25 cm,中位數(shù)4.8 cm。異位骨化與相鄰骨質(zhì)相連的病灶30個。1級病灶3個,T1加權(quán)像(T1 weighted image,T1WI)上均呈等信號; T2加權(quán)像(T2 weighted image,T2WI)及脂肪抑制T2加權(quán)像(fat suppression T2 weighted image,FS T2WI)上呈高信號2個、等高混雜信號1個,邊界均不清,其中1個病灶邊緣呈不規(guī)則線狀低信號環(huán),周圍均可見羽毛狀水腫; 2個病灶T1WI增強掃描顯示,病灶均彌漫性強化。2級病灶4個,T1WI上呈等信號1個、等低混雜信號3個; T2WI及FS T2WI上呈高低混雜信號3個、高信號1個,邊緣均可見不規(guī)則線狀低信號環(huán),周圍均可見大片狀水腫,其中2個病灶周圍水腫呈羽毛狀; 3個病灶T1WI增強掃描顯示,1個病灶彌漫性強化、2個病灶周圍水腫明顯強化。2級/3級病灶3個,T1WI上均呈等低混雜信號,T2WI及FS T2WI上均呈高低混雜信號,病灶周圍均可見水腫。3級病灶12個,T1WI上呈等低混雜信號7個、高低混雜信號3個、等信號2個; T2WI及FS T2WI上呈高低混雜信號8個、低信號2個,邊緣呈低信號、中心呈高信號2個,11個周圍可見水腫; 3個病灶T1WI增強掃描顯示,病灶周圍水腫均明顯強化。3級/4級病灶12個,T1WI上呈等低混雜信號8個、等高混雜信號4個; T2WI上呈等低混雜信號5個、等高混雜信號7個; FS T2WI上呈等低混雜信號9個、等高混雜信號3個,周圍均見輕度水腫。4級病灶19個,T1WI及T2WI上呈低信號10個、高信號6個、等高混雜信號2個、等低混雜信號1個; 在FS T2WI上呈低信號18個、稍高信號1個,1個周圍可見水腫; 3個病灶T1WI增強掃描顯示,病灶均未見強化,其中1個病灶周圍感染軟組織明顯強化。結(jié)論:不同成熟階段的MO具有不同的MRI表現(xiàn)特征。1級病灶在T1WI上呈等信號; 在T2WI及FS T2WI上呈高信號或等高混雜信號,邊界不清,周圍可見羽毛狀水腫。2級病灶在T1WI上呈等信號或等低混雜信號; 在T2WI及FS T2WI上呈高低混雜信號或高信號,病灶邊緣均可見不規(guī)則線狀低信號環(huán),周圍可見大片狀水腫影。3級病灶在T1WI上呈等低混雜信號、高低混雜信號或等信號; 在T2WI及FS T2WI上呈高低混雜信號,周圍可見水腫。4級病灶在T1WI及T2WI上呈低信號、高信號、等高混雜信號或等低混雜信號; 在FS T2WI上呈低信號或稍高信號,周圍多無水腫。

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(收稿日期:2022-01-29 本文編輯:呂寧)

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備注/Memo

備注/Memo:
基金項目:河南省科技發(fā)展計劃項目(202102310362) 通訊作者:郭智萍 E-mail:[email protected]
更新日期/Last Update: 1900-01-01