Vein dissection in a forearm AV fistula

This case shows how intraoperative Transit Time Flow Measurement (TTFM) and High-Frequency Ultrasound (HFUS) revealed a dissection in the outflow vein resulting in immediate revision.

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AV Access Workflow including TTFM & HFUS

Based on his extensive experience using Transit Time Flow Measurement (TTFM) and High-Frequency Ultrasound (HFUS) during vascular surgery, Dr. Alexander Meyer published a study in 2019 called, "Determinants of successful arteriovenous fistulae creation including intraoperative…

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Securing a Fem-Pop Bypass by using TTFM and HFUS

Performing quality control during peripheral bypass surgery is important to secure optimal patency of the graft to avoid re-operation or secondary intervention. In this case, Transit Time Flow Measurement (TTFM), High-Frequency Ultrasound (HFUS), and angio…

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Liver Tx: Guiding inflow modulation with TTFM

This case demonstrates how Transit Time Flow Measurement (TTFM) can be used during liver transplant surgery as a guide when modulating the portal venous flow (PVF) to avoid hepatofugal flow. Hepatofugal flow or non-forward portal flow (NFPF)…

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Liver Tx: Thrombus in Hepatic Artery detected with HFUS

This case demonstrates how High-Frequency Ultrasound (HFUS) can detect thrombus in the hepatic artery even when Transit Time Flow Measurement (TTFM) did not reveal any flow related issues. The case example consists only of a set of measurements…

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Meso-Rex shunt: Thrombus detected with TTFM and HFUS

This case demonstrates how Transit Time Flow Measurement (TTFM) and High-Frequency Ultrasound (HFUS) were instrumental in avoiding a catastrophic incident. A thrombus in the saphenous vein graft (SVG) was detected during surgery. Meso-Rex shunt is a…

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