Titlebook: Ultrasound-Guided Liver Surgery; An Atlas Guido Torzilli Book 2014 Springer-Verlag Italia 2014 Biliary tumors.Hepatocellular carcinoma.Live

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Liver Transplantation from Deceased Donorsvely or at the bedside. The evaluation of the hepatic vessels includes color and spectral Doppler analysis. ColorDoppler provides information regarding the presence and direction of flow, as well as the location of turbulent flow in a post-stenotic segment. Spectral analysis describes the direction, velocity, and phasicity of flow.

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Liver Transplantation from Living Donorscal course of a recipient. Intraoperative ultrasonography is an indispensable tool to determine the optimal transection plane in the liver parenchyma and division points of the vessels (the hepatic artery, the portal vein, and the hepatic vein).

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Technological Requirements for Ultrasound-Guided Liver SurgeryUltrasound imaging is based on the ‘pulse-echo’ principle: a short burst of ultrasound is emitted from a transducer, directed into a tissue, and as consequence, part of the echoes produced by the interaction of sound with tissue are reflected back to the transducer.

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Diagnosis and Staging: Contrast-Enhanced Intraoperative Ultrasound (CEIOUS) Using Intravascular ContTumor echogenicity and background liver appearance in IOUS (i.e., cirrhotic, steatotic) can affect our ability to recognize tiny lesions. It has been shown that small metastases can be better recognized if they are hypoechoic rather than isoechoic.

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Contrast-Enhanced Intraoperative Ultrasound Using Liver-Specific Contrast AgentsAs already described in the former chapters, the technique of liver surgery has substantially improved over the past few decades, partially because of the invention of IOUS [1].

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