急性胰腺炎CTSI评分与肝／脾CT 值比的相关性分析

目的：探讨急性胰腺炎（acute pancreatitis ，AP）的CTSI评分与肝/脾CT值比（ liver to spleen CT attenuation value ratio ，L/S ）的相关性。方法对87例AP患者进行腹部CT扫描，测量肝脏、脾脏CT值并计算L/S。根据CTSI分级标准由两名放射科医师盲法阅片将A P分为轻度、中度、重度组。分析A P评分分级与L/S之间的关系。结果87例A P患者L/S降低发生率为55％；轻、中、重度A P患者L/S降低发生率分别为23％、53％、88％；轻度、中度、重度A P患者L/S平均值分别为1．07±0．13、0．95±0．20、0．69±0．26。AP的CTSI评分与L/S呈负相关（r ＝-0．451，P ＝0.00）。结论肝/脾CT值比可以反映AP的严重程度，随着AP严重程度的增加，肝损伤的发生率也在增加。

Correlation analysis of CTSI scoring with liver to spleen CT attenuation value ratio in acute pancreatitis

Objective To discuss the relationship between CTSI scoring and liver to spleen CT attenuation value ratio （L/S） in acute pancreatitis （AP） .Methods Abdominal helical CT scanning was performed in 87 patients with AP .CT attenuation value of liver and spleen was measured and the L/S value was calculated .Patients with AP were graded into mild ,moderate and severe groups according to CTSI scoring by two doctors who were blind to interpret the imaging find-ings .Results The rate of the lower L/S was 55% in 87 patients with AP .The rate of the lower L/S was 23% ,53% , 88% in patients with mild ,moderate and severe AP respectively .The mean L/S value of patients with mild ,moderate and severe AP was 1 .07 ± 0 .13 ,0 .95 ± 0 .20 and 0 .69 ± 0 .26 respectively .The CTSI scoring was negatively correlated with L/S value in AP （ r =-0 .451 ,P=0 .00） .Conclusion The L/S can reflect the severity of AP ,furthermore ,with the se-verity of AP increases ,the rate of liver injury increases .