CAJ | 학술논문

目的：使用双源CT双能量扫描，探讨正常肝脏、胰腺、脾脏的碘含量特征，建立正常肝脏、胰腺、脾脏的碘含量参考值。方法：对54例非器质性疾病患者行双源CT双能量双期增强扫描。使用Siemens Dual Energy-Liver VNC 图像处理软件对动脉晚期、门静脉期0．7 mm图像进行分析处理。测量肝脏、胰腺（胰头、胰体、胰尾）、脾脏及腹主动脉（腹腔干开口的上一层面）的含碘值，并计算标化含碘值（nIC ）。结果：正常肝脏在动脉晚期和门脉期的 nIC 值分别为0．10±0．09和0．40±0．09；正常胰腺各部位在动脉晚期的nIC 值分别为0．29±0．32（胰头）、0．29±0．31（胰体）和0．28±0．35（胰尾），在门脉期分别为0．49±0．21（胰头）、0．46±0．17（胰体）和0．46±0．16（胰尾）；正常脾脏在门脉期的 nIC 值为0．02±0．05。不同年龄、不同性别组间正常肝脏、胰腺和脾脏nIC值的差异均无统计学意义（P＞0．05）；胰腺不同部位nIC值的差异无统计学意义（P＞0．05）；不同扫描期相肝脏nIC值的差异有统计学意义（P＜0．05）。结论：双源CT 扫描可获得正常肝脏、胰腺、脾脏的碘含量，可为肝脏、胰腺及脾脏疾病的诊断提供参考。
목적：사용쌍원CT쌍능량소묘，탐토정상간장、이선、비장적전함량특정，건립정상간장、이선、비장적전함량삼고치。방법：대54례비기질성질병환자행쌍원CT쌍능량쌍기증강소묘。사용Siemens Dual Energy-Liver VNC 도상처리연건대동맥만기、문정맥기0．7 mm도상진행분석처리。측량간장、이선（이두、이체、이미）、비장급복주동맥（복강간개구적상일층면）적함전치，병계산표화함전치（nIC ）。결과：정상간장재동맥만기화문맥기적 nIC 치분별위0．10±0．09화0．40±0．09；정상이선각부위재동맥만기적nIC 치분별위0．29±0．32（이두）、0．29±0．31（이체）화0．28±0．35（이미），재문맥기분별위0．49±0．21（이두）、0．46±0．17（이체）화0．46±0．16（이미）；정상비장재문맥기적 nIC 치위0．02±0．05。불동년령、불동성별조간정상간장、이선화비장nIC치적차이균무통계학의의（P＞0．05）；이선불동부위nIC치적차이무통계학의의（P＞0．05）；불동소묘기상간장nIC치적차이유통계학의의（P＜0．05）。결론：쌍원CT 소묘가획득정상간장、이선、비장적전함량，가위간장、이선급비장질병적진단제공삼고。
Objective:To analyze the characteristics of iodine distribution in normal liver,pancreas and spleen,and to establish the normal reference value of iodine content in these organs by using dual energy CT.Methods:54 adults without organic disease were recruited and underwent dual energy CT examination.The Siemens Dual Energy software was used to analyze the iodine content of normal liver,pancreas and spleen in late arterial and portal venous phase.The iodine concentra-tion in aorta,liver,pancreas and spleen were measured on the iodine-based material-decomposition images,and were further normalized (nIC)and compared.Results:The nIC of liver in late arterial and portal venous phase was 0.10 ±0.09 and 0.40±0.09,respectively;the nIC in head,body,and tail of pancreas was 0.29±0.32,0.29±0.31 and 0.28±0.3 in late ar-terial phase,and 0.49±0.21,0.46±0.17 and 0.46±0.16 in portal venous phase;the nIC of spleen in portal venous phase was 0.02±0.05.There were no significant differences of nIC in liver,pancreas (head,body,tail)and spleen between gender and different age groups (P>0.05).The nICs of liver in the two phases were statistically different (P<0.05).There were no significant differences among the nICs of pancreatic head,body and tail (P<0.05).Conclusion:The information of io-dine content of liver,pancreas and spleen can be provided by dual energy CT scan,which is helpful for the diagnosis of le-sions in these organs.