Conclusion: Combining with clinical symptoms, expert operating and rich experience may improve the diagnostic rate of ultrasonography in carcinoma of head of pancreas.

结论：紧密结合临床、熟练操作技法和丰富经验是提高胰头癌超声诊断准确率的有效途径。

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Objective To investigate and analyze the value of multi-slice spiral ct (MSCT) in evaluating vascular invasion and resectability of carcinoma of head of pancreas.

目的探讨多层螺旋CT (MSCT)在胰周血管侵犯和胰头癌的可切除性评估中的价值。

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Objective: To evaluate the clinical significance of needle aspiration biopsy in the operation for carcinoma of head of pancreas.

目的：评价术中穿刺活检在胰头癌定性诊断中的作用。

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