Guy Scott Gazelle

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PURPOSE To report complications encountered by members of a collaborative group who performed radio-frequency (RF) ablation in patients with focal liver cancer. MATERIALS AND METHODS Members of 41 Italian centers that were part of a collaborative group used a percutaneous internally cooled RF ablation technique and a standardized protocol for follow-up.(More)
PURPOSE To compare the effectiveness of radio-frequency (RF) ablation with that of percutaneous ethanol injection in the treatment of small hepatocellular carcinoma (HCC). MATERIALS AND METHODS Eighty-six patients with 112 small (< or = 3-cm-diameter) HCCs underwent RF ablation (42 patients with 52 tumors) or percutaneous ethanol injection (44 patients(More)
PURPOSE To describe the results of an ongoing radio-frequency (RF) ablation study in patients with hepatic metastases from colorectal carcinoma. MATERIALS AND METHODS In 117 patients, 179 metachronous colorectal carcinoma hepatic metastases (0.9-9.6 cm in diameter) were treated with RF ablation by using 17-gauge internally cooled electrodes. Computed(More)
OBJECTIVE Unenhanced CT scanning can reliably characterize incidentally detected adrenal masses when observers use density measurements of the adrenal gland. However, controversy exists as to the optimal density threshold required to differentiate benign from malignant lesions. This study attempts to establish a consensus by performing a pooled analysis of(More)
PURPOSE To study local therapeutic efficacy, side effects, and complications of radio-frequency (RF) ablation in the treatment of medium and large hepatocellular carcinoma (HCC) lesions in patients with cirrhosis or chronic hepatitis. MATERIALS AND METHODS One-hundred fourteen patients who were under conscious sedation or general anesthesia had 126 HCCs(More)
Tumor ablation by using radio-frequency energy has begun to receive increased attention as an effective minimally invasive approach for the treatment of patients with a variety of primary and secondary malignant neoplasms. To date, these techniques have been used to treat tumors located in the brain, musculoskeletal system, thyroid and parathyroid glands,(More)
PURPOSE To assess the feasibility and safety of using cooled-tip electrodes to increase the volume of coagulation necrosis obtained or reduce the number of treatment sessions necessary with percutaneous tumor radio-frequency (RF) ablation. MATERIALS AND METHODS Twenty-nine patients with 44 hepatic metastases (1.3-5.1 cm diameter) from colorectal (n = 22),(More)
PURPOSE To assess the effect of intraparenchymal saline injection on the results of radio-frequency (RF) tissue ablation. MATERIALS AND METHODS Ex vivo and in vivo animal RF ablation was performed with and without intraparenchymal saline injection. Initially, saline was injected as a bolus (1-20 mL) before RF application. For subsequent in vivo studies,(More)
PURPOSE To determine the potential efficacy of radio-frequency (RF) ablation of liver metastases during long-term follow-up. MATERIALS AND METHODS Sixteen patients with 31 hepatic metastases were treated with percutaneous, ultrasound-guided RF ablation. RF was applied to monopolar electrodes (2-3-cm tip exposure) either individually or within a multiprobe(More)