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螺旋CT双期增强扫描对胰腺癌的诊断价值

Journal of Practical Radiology(2006)

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Abstract
目的评价螺旋CT双期增强扫描在小胰腺癌诊断中的价值。方法螺旋CT对21例(≤2cm)的胰腺癌先平扫,再以3ml/s速度高压团注对比剂100ml,分别行动脉期(注射后20~25s)和实质期(注射后50~60s)扫描,测量各扫描期肿瘤和正常胰腺组织的CT值。结果肿瘤的平均CT值在动脉期(42±14)HU,实质期(48±18)HU,正常胰腺组织的平均CT值动脉期(105±15)HU,实质期(86±11)HU。肿瘤-胰腺密度差为动脉期(69±15)HU,实质期(38±21)HU,动脉期时二者之间有显著差别(P<0.01)。结论动脉期时可获得肿瘤-胰腺密度最大差值,有利于胰腺癌的早期诊断和可切除性的判断。
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Key words
tomography,pancreatic carcinoma,X-ray computed
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