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IMAGING CHARACTERISTICS AND VALUES OF MAGNETIC REASONANCE IMAGING IN THE DIAGNOSIS OF HILAR CHOLANGIOCARCINOMA
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Abstract
Objectives: Describing imaging characteristics, assessing values of MRI in the diagnosis and staging of hilar cholangiocarcinoma. Patients and methods: 35 patients suspected of hilar cholangiocarcinoma who had undergone MRI in Viet Duc Hopital were selected to be in a descriptive study from July 2019 to July 2021. Results: Average size of mass-forming and intraductal growing type was 3,86±1,77cm. With periductal infiltrating type, average wall thickness was 6,53±4,04mm; average segment involvement was 25,47±6,87mm. On T1W imaging, majority of tumors were hypointense or isointense (93,8%), the signal intensity was variable on T2W imaging. 96,8% tumors showed restricted diffusion. MRI had sensitivity 100%, specificity 25%, positive predicted value 91,2 %, negative predicted value 100%, accuracy 91,4% in the diagnosis of hilar cholangiocarcinoma. Accuracy for ductal extent for MRI was 83,9%. Conclusion: Hilar cholangiocarcinoma is typically hypointense or isointense on T1W, restricted diffusion on DWI, the signal intensity is variable on T2W. MRI is a valuable method in diagnosis and staging hilar cholangiocarcinoma.
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Keywords
hilar cholangiocarcinoma, magnetic reasonance imaging, diagonis
References
2. Lim J.H. (2012). Cholangiocarcinoma: Morphologic Classification According to Growth Pattern and Imaging Findings. American Journal of Roentgenology.
3. Vanderveen K.A. and Hussain H.K. (2004). Magnetic resonance imaging of cholangiocarcinoma. Cancer Imaging, 4(2), 104–115.
4. Bismuth H. and Corlette M.B. (1975). Intrahepatic cholangioenteric anastomosis in carcinoma of the hilus of the liver. Surg Gynecol Obstet, 140(2), 170–178.
5. Yu X.-R., Huang W.-Y., Zhang B.-Y., et al. (2014). Differentiation of infiltrative cholangiocarcinoma from benign common bile duct stricture using three-dimensional dynamic contrast-enhanced MRI with MRCP. Clin Radiol, 69(6), 567–573.
6. Vũ Mạnh Hùng (2007), Đặc điểm hình ảnh và giá trị của cộng hưởng từ trong chẩn đoán ung thư đường mật rốn gan, Luận văn tốt nghiệp bác sĩ nội trú bệnh viện, Đại học Y Hà Nội.
7. Park M.J., Kim Y.K., Lim S., et al. (2014). Hilar cholangiocarcinoma: value of adding DW imaging to gadoxetic acid-enhanced MR imaging with MR cholangiopancreatography for preoperative evaluation. Radiology, 270(3), 768–776.
8. Ruys A.T., Van Beem B.E., Engelbrecht M.R.W., et al. (2012). Radiological staging in patients with hilar cholangiocarcinoma: a systematic review and meta-analysis. Br J Radiol, 85(1017), 1255–1262.