BACKGROUND Thermal ablation procedures, including radiofrequency ablation (RFA) or laser-induced interstitial thermotherapy (LITT), are now well established in the treatment of malignant unresectable hepatic tumors. But the impact of partial ablation (PA) on long-term survival following computed tomography (CT)-guided radiofrequency ablation and laser- induced interstitial thermotherapy of unre...

In the last few years, minimally invasive tumor ablation performed by interventional radiologists has gained increasing relevance in oncologic patient care. Limitations of thermal ablation techniques such as radiofrequency ablation (RFA), microwave ablation (MWA), and laser-induced thermotherapy (LITT), including large tumor size, cooling effects of adjacent vessels, and tumor location near the...

BACKGROUND Image-guided ablation is used to treat patients with unresectable malignant hepatic tumors that are limited in number and size, especially hepatocellular carcinoma (HCC) and colorectal hepatic metastases. While radiofrequency ablation (RFA) has been the most popular technique, several alternate options for focal tissue destruction have recently attracted attention. These technologies...

Lower extremity venous insufficiency secondary to saphenous vein insufficiency is a common medical condition that decreases a patient's quality of life. Traditionally treated with high ligation and stripping, minimally invasive procedures using endovenous thermal ablation techniques, such as endovenous laser ablation, have evolved. The use of detailed imaging and advances in the understanding o...

F. K. Wacker, S. G. Nour, J. L. Duerk, J. S. Lewin Case Western Reserve University/University Hospitals, Dept. of Radiology, Cleveland, OH, United States Synopsis: The purpose of this study was to assess the feasibility of MRI to control radiofrequency ablation (RFA) of pulmonary tissue in a rabbit model. Puncture and lung RFA were performed in 5 New Zealand White rabbits under MR image control...

Ultrashort pulsed laser ablation of dielectrics has been investigated using ex-situ morphological examinations in combination with in-situ time-of-flight mass spectrometry of the ablated species. Analysis of the energy spectrum of the ablation products provides a wealth of information on the processes occurring during femtosecond laser ablation of materials. The presentation will focus on the c...

Several thermal-therapy strategies such as thermal ablation, hyperthermia-triggered drug delivery from temperature-sensitive liposomes (TSLs), and combinations of the above were investigated in a rhabdomyosarcoma rat tumor model (n = 113). Magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) was used as a noninvasive heating device with precise temperature control for image-gui...

Venous insufficiency syndromes allow venous blood to escape from its normal flow path and flow in a retrograde direction down into an already congested leg. Mild forms of venous insufficiency are often asymptomatic or uncomfortable, and cosmetically disfiguring, but severe venous disease can produce severe systemic consequences and can lead to severe morbidity. Mild symptoms include aching or t...

Endoscopic treatment of early esophageal neoplasia has widely been established in gastroenterology. It has been shown to be effective and safe also in the long-term follow-up, and it is – in contrast to the previous goldstandard, which is esophageal resection – organ preserving. There is no treatment-related mortality and a very low morbidity. In early Barrett’s neoplasia, the two-step concept ...

Minimally invasive therapies are gaining increasing attention as an alternative to standard surgical therapies in the treatment of primary hepatocellular carcinoma. These include therapies administered transcatheterally (arterial embolization, intraarterial chemoinfusion, and combination chemoembolization) and percutaneously (chemical ablation with ethanol or acetic acid, and thermal ablation w...