Erschienen in:
01.08.2003 | Letter to the Editor
Intrahepatic Regional Portal Blood Flow Modulation Using
Percutaneous US-Monitoring Portal Vein Compression During
Radiofrequency Thermal Ablation
verfasst von:
Hyunchul Rhim, Young-Sun Kim
Erschienen in:
CardioVascular and Interventional Radiology
|
Ausgabe 4/2003
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Excerpt
Among the factors influencing technical success in radiofrequency (RF) ablation, the heat sink effect imposes limits on volume of coagulation necrosis. Perfusion of blood transfers heat from the ablation site, thereby reducing the volume of destroyed tissue [
1 2 3 4]. To overcome this effect, the concept of hepatic blood flow modulation was introduced by several researchers. We recently experienced the fact that intrahepatic portal blood flow could be decreased by percutaneously compressing the portal vein adjacent to the mass using an expandable RF needle electrode. The purpose of this letter is to introduce a new concept of percutaneous, selective modulation of portal blood flow during RF thermal ablation of hepatic tumors. …