【摘要】：目的 :探討超聲彈性應(yīng)變率比值在TI-RADS 4~6類甲狀腺結(jié)節(jié)中的應(yīng)用價(jià)值。方法:常規(guī)超聲觀察303例(共324個(gè)結(jié)節(jié))甲狀腺結(jié)節(jié)的二維聲像圖特征,依據(jù)甲狀腺影像數(shù)據(jù)報(bào)告與評分系統(tǒng)(TI-RADS)對甲狀腺結(jié)節(jié)進(jìn)行分類,并進(jìn)行超聲彈性成像,繪制ROC曲線確定彈性應(yīng)變率比值最佳鑒別診斷界值。將137個(gè)TI-RADS 4~6類甲狀腺結(jié)節(jié)分組:Ⅰ組TI-RADS 4A類,Ⅱ組TI-RADS 4B類,Ⅲ組TI-RADS 5~6類(6類中除去已經(jīng)病理證實(shí)者),分析彈性應(yīng)變率比值在3組病例中的應(yīng)用價(jià)值。結(jié)果:彈性應(yīng)變率比值最佳界值為0.55,彈性應(yīng)變率比值在Ⅰ組中差異無統(tǒng)計(jì)學(xué)意義,在Ⅱ、Ⅲ組中差異具有統(tǒng)計(jì)學(xué)意義。彈性應(yīng)變率比值鑒別診斷Ⅱ組和Ⅲ組的敏感性、特異性、準(zhǔn)確性、陽性預(yù)測值分別為90.9%、75.0%、87.5%、93.0%(Ⅱ組)和85.7%、80.0%、84.6%、94.7%(Ⅲ組)。結(jié)論 :對于Ⅱ、Ⅲ組,聯(lián)合應(yīng)用TI-RADS分類系統(tǒng)與彈性應(yīng)變率比值具有較高的應(yīng)用價(jià)值,提示惡性結(jié)節(jié)應(yīng)少用細(xì)針穿刺活檢等其他檢查,早期進(jìn)行手術(shù)治療;對于Ⅰ組,彈性應(yīng)變率應(yīng)用價(jià)值有限,應(yīng)盡早結(jié)合其他檢查手段以免延誤診斷。
[Abstract]:Objective: to evaluate the value of ultrasonic elastic strain rate ratio (ESR) in 6 types of thyroid nodule (TI-RADS 4). Methods: three hundred and thirty three cases (324 nodule) of thyroid nodule were observed by conventional ultrasound. The thyroid nodules were classified according to the thyroid imaging data report and score system (TI-RADS), and the ultrasonic elastic imaging was performed. ROC curve was drawn to determine the best differential diagnostic limit of elastic strain rate ratio. 137 thyroid nodules of TI-RADS 4N were divided into three groups: group 鈪，

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