Nghiên cứu một số đặc điểm hình ảnh cắt lớp vi tính đa dãy trong chẩn đoán u vùng đầu tụy

Abstract

Objective: To study the imaging characteristics of multi-detector row computed tomography in diagnosis of periampullary tumors. Subject and method: A retrospective, prospective and descriptive study was carried out on 79 patients with clinically suspected periampullary tumors, underwent surgery and had pathological results, from May 2017 to February 2021 at 108 Military Central Hospital. Result: Pancreatic head tumors were the most common (40.5%). Pancreatic head tumors and ampulla tumors accounted for the majority of cases (74.7%). 58.9%, had tumors < 3cm in size. Majority of tumors had irregular margin and clear boundary, accounting for 79.5% and 63%, respectively. Tumors with heterogeneous attenuation accounted for the majority of cases (61.6%). After contrast injection, most tumors absorbed much and unevenly of contrast, accounting for 89% and 68.5%, respectively. The majority of tumors did not invade surrounding blood vessels, accounting for 76.7%. Almost all tumors that invaded blood vessels were pancreatic head tumors, accounting for 94.1%. Conclusion: Multi-detector row CT, collated to surgery and pathological results, is highly valuable in evaluating the imaging characteristis of periampullary tumors. This helps increasing the efficiency in diagnosis and prognosis of surgical possibilities for patients with periampullary tumors.