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探讨胰腺钩突角角度变化在ＣＴ诊断胰头占位中的意义。方法：定义ＣＴ片上胰腺钩突前后两边之夹角为胰腺钩突角。测量４９０例患者ＣＴ片上胰腺钩突角大小。分３组：Ａ组（ＣＴ诊断假阴性组）为２０例术前ＣＴ未能发现胰头占位但经手术及病理证实有胰头占位性病变的患者；Ｂ组（胰头占位组）为５０例ＣＴ及病理均诊断胰头癌的患者；Ｃ组（对照组）为４２０例非胰腺疾病患者。结果：自十二指肠水平部以上和胰头最下层向上测量称为Ⅰ－Ⅵ个层面。对照组各层面胰腺钩突角的大小从下向上依次为３０°±９°、３４°±１０°、３７°±１０°、３７°±１２°、３７°±１４°和２５°±１３°。计算Ａ、Ｂ、Ｃ３组各病例各层面中最大角度之平均值分别为９０°±７、９６°±１６°、４７°±９°，与Ｃ组相比，Ａ、Ｂ两组均明显增大（Ａ组与Ｃ组比较，ｔ＝３１.4２，Ｐ＜０．００１；Ｂ组与Ｃ组比较，ｔ＝３６．５３，Ｐ＜０．００１）。结论：胰腺钩突角增大是诊断胰头占位的有意义指标。凡是钩突角增大（＞７５°）的病例均应高度怀疑胰头占位，有待进一步检查。
To explore the significance of pancreatic angle changes in CT diagnosis of pancreatic head occupation. METHODS: The angle between the two sides of the uncinate process of the pancreas was defined as the angle of the pancreas. The size of the pancreas of the pancreas was measured in 490 patients. Divided into 3 groups: Group A (CT false-negative group) was 20 patients with preoperative CT failed to find pancreatic head occupation but confirmed by surgery and pathology with pancreatic head space-occupying lesions; Group B (pancreatic head space group ) For 50 patients with pancreatic cancer diagnosed by CT and pathology; for group C (control group), 420 patients with non-pancreatic disease. RESULTS: Measurements from the level above the duodenum and the lower level of the pancreatic head were measured as I-VI levels. The size of pancreatitis at each level of the control group was 30°±9°, 34°±10°, 37°±10°, 37°±12°, 37°±14°, and 25°±13° from bottom to top. . The average values of the maximum angles in each level of the A, B, and C3 groups were calculated to be 90°±7, 96°±16°, and 47°±9°. Compared with the C group, the A and B groups were significantly increased. Large (A group compared with C group, t = 31.42, P <0.001; B group and C group, t = 36.53, P <0.001). Conclusion: The enlargement of the angle of pancreatitis is a useful index for diagnosing pancreatic head space occupation. All patients with enlarged hook angles (>75°) should have a high degree of suspicion of pancreatic head space occupancy, pending further examination.