滿玉琳 郭佑民 楊靜 尤葆華
摘要:目的:基于循證醫(yī)學(xué)理念,采用Meta分析法定量評(píng)價(jià)低場(chǎng)磁共振(MRI)對(duì)膝關(guān)節(jié)軟骨損傷評(píng)估的準(zhǔn)確性。方法:檢索Cochrane圖書館、Pubmed、Medline及Elsevier以及中國(guó)期刊網(wǎng)(CNKI),在1990-2013年間公開發(fā)表的相關(guān)中文及英文文獻(xiàn),對(duì)納入文獻(xiàn)進(jìn)行質(zhì)量評(píng)價(jià)。結(jié)果:低場(chǎng)MRI對(duì)膝關(guān)節(jié)軟骨損傷診斷的匯總靈敏度、特異度和SROC曲線下面積分別為86%、84%和89.8%,Q*值為0.829。結(jié)論:低場(chǎng)MRI診斷膝關(guān)節(jié)軟骨損傷有較高的診斷價(jià)值,為臨床進(jìn)一步診斷與治療提供可靠的依據(jù)。
關(guān)鍵詞:低場(chǎng)磁共振;膝關(guān)節(jié)軟骨損傷;Meta分析
中圖分類號(hào):R445.2 文獻(xiàn)標(biāo)識(shí)碼:B DOI:10.3969/j.issn.1001-0270.2017.02.22
Abstract: Objective: Evaluation the accuracy of low field Magnetic Resonance Image (MRI) in the assessing of cartilage defects of the knee through Meta-analysis method. Methods: Retrieve the Chinese and English paper recorded by Cochrane Library, Pub med, Medline and Elsevier and China national knowledge index (CNKI), which was published between 1990 and 2013. According to the corresponding inclusion and exclusion criteria. Results: The results showed that the sensitivity, specificity and SROC curve under the area of low-field MRI in the diagnosis of knee cartilage defects was 86%, 84% and 89.8%, respectively. In addition, the Q * index was 0.829. Conclusion: Low field MRI in the diagnosis of knee joint cartilage injury has high diagnostic value, it can be a reliable basis for clinical diagnosis and treatment of further.
Key Words: Low Field Magnetic Resonance; Knee Joint Cartilage Injury; Meta Analysis
隨著我國(guó)人口的老齡化,膝關(guān)節(jié)軟骨損傷的病例逐步增多,關(guān)節(jié)軟骨損傷可以導(dǎo)致關(guān)節(jié)疼痛、積液和功能障礙,嚴(yán)重影響患者的生活質(zhì)量。磁共振成像(MRI)作為一種無(wú)創(chuàng)評(píng)估手段在關(guān)節(jié)軟骨損傷診斷中的應(yīng)用最為普遍,對(duì)全層關(guān)節(jié)軟骨損傷的評(píng)估較為準(zhǔn)確[1],由于不同國(guó)家、不同地區(qū)、生活方式及醫(yī)療經(jīng)濟(jì)條件的差異,低場(chǎng)MRI目前在基層醫(yī)院廣泛應(yīng)用于膝關(guān)節(jié)疾病的診斷中,但它們的診斷價(jià)值文獻(xiàn)報(bào)道不一,單個(gè)臨床試驗(yàn)樣本量有限,在不同程度上容易受各種因素的干擾而產(chǎn)生偏倚[2]。把多個(gè)目的相同,設(shè)計(jì)方案相同或類似的試驗(yàn)集中起來(lái),進(jìn)行綜合匯總分析,得到一個(gè)更真實(shí)、更精確的綜合指標(biāo),用來(lái)指導(dǎo)臨床實(shí)踐。
1 材料與方法
1.1 一般資料
檢索的數(shù)據(jù)庫(kù)包括中國(guó)期刊網(wǎng)(CNKI)、Cochrane圖書館、Pubmed數(shù)據(jù)庫(kù)、Medline數(shù)據(jù)庫(kù)、Elsevier數(shù)據(jù)庫(kù)。文獻(xiàn)檢索詞:英文檢索詞:(knee cartilage defects OR articular genu OR knee joint cartilage)AND low field magnetic resonance image AND arthroscope中文檢索詞:膝關(guān)節(jié)軟骨損傷OR膝關(guān)節(jié)軟骨OR膝關(guān)節(jié)AND低磁場(chǎng)核磁共振AND關(guān)節(jié)鏡。
檢索文獻(xiàn)發(fā)表年限為1990年1 月至2013 年12 月,文獻(xiàn)語(yǔ)種定義為中文和英文。
我們最終納入11篇文獻(xiàn)(見表1),為低場(chǎng)MR診斷膝關(guān)節(jié)軟骨損傷的研究。
1.2 統(tǒng)計(jì)學(xué)方法
采用Stata12軟件和meta-disc1.4軟件對(duì)納入文獻(xiàn)行統(tǒng)計(jì)學(xué)處理,包括異質(zhì)性檢驗(yàn),計(jì)算靈敏度和特異度及其95%可信區(qū)間,繪制受試者工作特征曲線(SROC)并計(jì)算曲線下面積。
2 結(jié)果
對(duì)低場(chǎng)強(qiáng)核磁共振診斷膝關(guān)節(jié)軟骨損傷分析后,Q=12.50,P>0.10,I2=0.28,說(shuō)明納入的病例有一定的異質(zhì)性,但異質(zhì)性不明顯,可以認(rèn)為不同研究結(jié)果組內(nèi)之間是同質(zhì)的,研究結(jié)果的不同是由抽樣誤差造成的,應(yīng)采用固定效應(yīng)模型進(jìn)行Meta分析。
低場(chǎng)MRI對(duì)膝關(guān)節(jié)軟骨缺損診斷的匯總靈敏度、特異度和SROC曲線下面積分別為86%(95%CI:84%-89%)、84%(95%CI:81%-87%)和89.8%,Q*值為0.829。
3 討論
本次研究低場(chǎng)MRI軟骨缺損評(píng)估的匯總靈敏度、特異度、及SROC曲線下面積為86%(95%CI:84%-89%)、84%(95%CI:81%-87%)和89.8%,Q*值為0.829。分析結(jié)果穩(wěn)定,可信度較高。我們的研究可以為臨床醫(yī)生提供更科學(xué)、更精確的診斷和決策依據(jù)。結(jié)果表明,低場(chǎng)核磁共振診斷膝關(guān)節(jié)軟骨損傷有較高的統(tǒng)計(jì)學(xué)價(jià)值。
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