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作 者:彭勇[1] 韩迎春[1] 魏梦绮[1] 王喜林[1]
机构地区:[1]第四军医大学西京医院放射科,陕西西安710032
出 处:《实用放射学杂志》2006年第3期278-280,共3页Journal of Practical Radiology
摘 要: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。Objective To evaluate the value of dual - phase spiral CT scanning in diagnosis of small pancreatic carcinoma. Methods 21 cases with small pancreatic carcinoma ( ≤2 cm ) underwent plain CT scan and dual -phase eahanced spiral CT including arterial phase (20 -25 s after infusion ) and pancreatic phase( 50 -60 s after infusion ) with a 100 ml bolus injection of contrast material at 3 -6 ml/s. CT attenuation values of tumor and normal pancreas in all scanning phase were obtained . Results The mean CT value of tumor was ( 42 ± 14 ) HU ( arterial phase ) and ( 48 ± 18 ) HU ( pancreatic phase ) , the mean CT value of normal, pancreas was ( 105 ± 15 ) HU ( arterial phase ) and ( 86 ± 11 ) HU ( pancreatic phase). The dens difference of tumor - pancreas was significantly on arterial phase ( 69 ± 15 ) HU. Conclusion The maximum dens difference of tumor - pancreas can be obtained on arterial phase CT scan, it has advantages in diagnosing pancreatic carcinoma of early period and to judge the resectionability of pancreatic carcinoma.
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