临床医药文献电子杂志
臨床醫藥文獻電子雜誌
림상의약문헌전자잡지
Journal of Clinical Medical Literature (ElectronicEdition)
2015年
23期
4891-4892
,共2页
双源CT%双能量成像%颈部淋巴结
雙源CT%雙能量成像%頸部淋巴結
쌍원CT%쌍능량성상%경부림파결
Dual-source CT%Dual energy imaging%Neck lymph node
目的:研究双源CT双能量模式双期增强在颈部肿大淋巴结中的临床应用价值。方法回顾性分析94枚经病理证实的颈部肿大淋巴结双能量模式双期增强扫描CT资料,得到140 kV、80 kV,加权融合120 kV图像。分析94枚颈部肿大淋巴结双期增强图像,科学的评估140 kV以及80 kV跟加权融合120 kV图像中,肿大淋巴结平均CT值的大小,信号噪声比。结果(1)动脉期、实质期140 kV 、80 kV和加权融合120 kV图像中肿大淋巴结的平均CT值三组之间比较,差异有统计学意义(P<0.05)。(2)动脉期、实质期140 kV、80 kV和加权融合120 kV图像中肿大淋巴结的对比噪声,差异无统计学意义(P>0.05)。结论增强双期三组图像的SNR无差异,三组图像均可以用来观察颈部肿大淋巴结,其中,80 kV图像的平均CT值高于140 kV及加权融合120 kV图像的平均CT值,用80 kV图像更利于显示肿大淋巴结的强化区域。
目的:研究雙源CT雙能量模式雙期增彊在頸部腫大淋巴結中的臨床應用價值。方法迴顧性分析94枚經病理證實的頸部腫大淋巴結雙能量模式雙期增彊掃描CT資料,得到140 kV、80 kV,加權融閤120 kV圖像。分析94枚頸部腫大淋巴結雙期增彊圖像,科學的評估140 kV以及80 kV跟加權融閤120 kV圖像中,腫大淋巴結平均CT值的大小,信號譟聲比。結果(1)動脈期、實質期140 kV 、80 kV和加權融閤120 kV圖像中腫大淋巴結的平均CT值三組之間比較,差異有統計學意義(P<0.05)。(2)動脈期、實質期140 kV、80 kV和加權融閤120 kV圖像中腫大淋巴結的對比譟聲,差異無統計學意義(P>0.05)。結論增彊雙期三組圖像的SNR無差異,三組圖像均可以用來觀察頸部腫大淋巴結,其中,80 kV圖像的平均CT值高于140 kV及加權融閤120 kV圖像的平均CT值,用80 kV圖像更利于顯示腫大淋巴結的彊化區域。
목적:연구쌍원CT쌍능량모식쌍기증강재경부종대림파결중적림상응용개치。방법회고성분석94매경병리증실적경부종대림파결쌍능량모식쌍기증강소묘CT자료,득도140 kV、80 kV,가권융합120 kV도상。분석94매경부종대림파결쌍기증강도상,과학적평고140 kV이급80 kV근가권융합120 kV도상중,종대림파결평균CT치적대소,신호조성비。결과(1)동맥기、실질기140 kV 、80 kV화가권융합120 kV도상중종대림파결적평균CT치삼조지간비교,차이유통계학의의(P<0.05)。(2)동맥기、실질기140 kV、80 kV화가권융합120 kV도상중종대림파결적대비조성,차이무통계학의의(P>0.05)。결론증강쌍기삼조도상적SNR무차이,삼조도상균가이용래관찰경부종대림파결,기중,80 kV도상적평균CT치고우140 kV급가권융합120 kV도상적평균CT치,용80 kV도상경리우현시종대림파결적강화구역。
Objective To investigate the clinical value of dual source CT (DSCT) dual energy (DE) technique in the cervical lymph nodes.Methods A retrospective analysis of 94 histologically confirmed cervical lymph nodes of dual energy mode dual-phase enhanced CT scan data to obtain 140 kV, 80 kV, 120 kV weighted fusion image. Analysis of cervical lymph nodes 94 dual-phase enhanced image, as well as the size of the scientific assessment 140 kV,80 kV,120 kV with weighted fusion image, enlarged lymph nodes average CT values, signal to noise ratio. Results (1)The mean CT values of enlarged lymph nodes in arterial and parenchymal phase on 140 kV, 80 kV and the weighted fusion 120 kV images were differences among the three groups.(2)The CNR of enlarged lymph nodes in in arterial and parenchymal phaseson on 140 kV, 80 kV, and weighted-average images were no differences among the three groups.Conclusion There were no difference in SNR among the three groups in arterial and parenchymal phases.The three groups can be used to observe the cervical lymph nodes.The mean CT number of lymph nodes in both two enhanced phases on 80 kV image is higer than that of on 140 kV and weighted fusion 120 kV images.80 kV image is more benificial for displaying the enhancement region of enlarged lymph nodes.