本文選題：甲狀腺微小乳頭狀癌 + 磁共振擴(kuò)散成像　； 參考：《臨床放射學(xué)雜志》2017年08期

【摘要】：目的探討高b值擴(kuò)散加權(quán)成像(DWI)診斷甲狀腺微小乳頭狀癌的價(jià)值。方法選擇因甲狀腺結(jié)節(jié)擬行手術(shù)患者75例,術(shù)前均常規(guī)進(jìn)行甲狀腺DWI檢查,分別測(cè)量不同b值DWI圖像中單個(gè)結(jié)節(jié)與鄰近正常甲狀腺組織信號(hào)強(qiáng)度的比值(R值:R0、R800、R2000)以及高b值DWI圖像中R值較低b值DWI圖像中R值變化情況(Type-R800/0、Type-R2000/0、Type-R2000/800:Ⅰ型為上升型、Ⅱ型為平臺(tái)型、Ⅲ型為下降型),再通過(guò)與術(shù)后病理檢查結(jié)果對(duì)照,評(píng)估上述診斷指標(biāo)對(duì)甲狀腺微小乳頭狀癌與良性結(jié)節(jié)的鑒別診斷價(jià)值。結(jié)果共有良性結(jié)節(jié)53個(gè)和微小乳頭狀癌42個(gè)納入結(jié)節(jié)測(cè)量和統(tǒng)計(jì)分析。(1)單變量分析結(jié)果顯示,R值中的R0和R2000,以及R值變化類(lèi)型中的Type-R800/0、Type-R2000/0、Type-R2000/800,在甲狀腺微小乳頭狀癌與良性結(jié)節(jié)間顯著(P㩳0.05)。(2)多變量分析結(jié)果顯示,R0(敏感度和特異性分別為83.26%和64.78%)以及Type-R2000/0(敏感度和特異性分別為93.81%和85.63%),可作為甲狀腺微小乳頭狀癌的獨(dú)立診斷指標(biāo)(P值分別㩳0.05和㩳0.001);如果將R0和Type-R2000/0聯(lián)合診斷,特異性可進(jìn)一步提高(87.59%)。結(jié)論高b值DWI對(duì)于甲狀腺微小乳頭狀癌與良性結(jié)節(jié)鑒別診斷價(jià)值較高。
[Abstract]:Objective to evaluate the value of high b value diffusion weighted imaging (DWI) in the diagnosis of thyroid micropapillary carcinoma. Methods Seventy-five patients with thyroid nodules who were scheduled for operation were examined with DWI before operation. The ratio of signal intensity of single nodule to adjacent normal thyroid tissue in DWI images with different b values was measured. The ratio of signal intensity of single nodule to adjacent normal thyroid tissue was R: R0 / R800 R2000) and the R value of high b value DWI images was lower than that of DWI images with lower b value. The changes of R values in high b value DWI images were as follows: Type-R800 / 0 Type-R2000 / 0 / 0 Type-R2000 / 800: type I was ascending type, type 鈪，

本文編號(hào)：1928064