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https://www.selleckchem.com/
When the cut-off contact length of 6.73mm was combined with Loyer's standard, 4 false-negative cases could be avoided. Loyer's and Lu's standards and the contact length performed best in evaluating hepatic arterial invasion by hilar cholangiocarcinoma on preoperative CT images, particularly in assessing the proper hepatic artery. Arterial tortuosity could serve as an important supplement. The combination of the contact length and Loyer's standard could improve the diagnostic performance. Loyer's and Lu's standards and the contact length performed best in ev