The value of multi-slice computed tomography in evaluating vascular invasion of periampullary tumours

Abstract

Determining the relationship between the tumor and blood vessels is an important parameter for performing radical resection in periampullary tumours. Objective: To evaluate the effectiveness of multi-slice computed tomography (CT) in assessing vascular invasion of periampullary tumours. Subjects and methods: 44 patients with periampullary tumours were operated on at the Department of Gastrointestinal and HepatoBiliaryPancreatic Surgery (now under the Centre of Digestive Surgery) and had multi-slice CT scans at the Radiology Centre, Bach Mai Hospital from June 2020 to June 2022. Results: The mean age was 59.66±10.11 years; 68.2% of these patients belonged to the 50-70 age group; the male-to-female ratio was 1.31:1. Half of the patients had pancreatic head tumours. 40.9% of patients had tumours measuring from 2 to 4 cm in size, with a mean tumour size of 3.09±1.96 cm; 56.8% of tumours were hypodense. The role of contact angle and vessel deformation in assessing vascular invasion showed sensitivities of 100% and 99.5%, respectively. The sensitivity of CT in determining vascular invasion in general was 83.3%. The accuracy of CT in assessing vascular invasion was 98.2%. Conclusion: Multi-slice CT is a reliable means to evaluate the vascular invasion of periampullary cancer.