We report a case of hepatocellular carcinoma (HCC) with chronic hepatitis C virus (HCV) infection, suc-cessfully treated with percutaneous radiofrequency ablation (RFA) under new Live trhree-dimensional (3D) echo guid...We report a case of hepatocellular carcinoma (HCC) with chronic hepatitis C virus (HCV) infection, suc-cessfully treated with percutaneous radiofrequency ablation (RFA) under new Live trhree-dimensional (3D) echo guidance for hearts probe before [1], but ,at the time, perform RFA with a new Live3D probe de- veloped flants. A 61 year-old Japanese man had a 3.5 cm in diameter HCC nodule in the liver S3 region. We applied the Live 3D ultrasonography during RFA therapy with a cool-tip needle electrode. The echo guidance facilitated an accurate approach for the needle puncture. The guidance was also useful for confirming, whether an adequate safety marging for the nodule had been obtained. Thus new Live 3D ul-trasonography echo technique appears to provide safe guidance of RFA needles via accurate targeting of HCC nodules, thereby allowing real-time visualize- tion when combined with echo contrast.展开更多
Radiofrequency ablation (RFA) has been clinically employed in Japan, and its usefulness in the treatment of hepatocellular carcinoma (HCC) has been reported by many researchers. In the present study, the convex punctu...Radiofrequency ablation (RFA) has been clinically employed in Japan, and its usefulness in the treatment of hepatocellular carcinoma (HCC) has been reported by many researchers. In the present study, the convex puncture probe PVT-350BTP, rather than a conventional convex probe, was used for RFA for the treatment of HCC and its usefulness was assessed. At the same time, evaluation of the therapeutic effect using ultrasound contrast agent was investigated. The subjects were 20 patients (16 men and 4 women) with 20 HCC nodules as confirmed by contrast CT or abdominal angiography. No nodules were ≤1.0 cm in diameter, 12 were 1.1 cm - 2.0 cm, and 8 were 2.1 cm - 3.0 cm. An Aplio diagnostic ultrasound system (Toshiba Medical Systems, Tokyo, Japan) and the PVT-350BTP probe (Toshiba) were employed for RFA. The PVT-350BTP supports puncture angles of 55, 70, 85, and 100 degrees. By mounting various types of puncture adapters on the probe, 13 G to 22 G puncture needles can be used. The needle can easily be attached and detached by operating a lever. Contrast echo studies with Levovist were performed before and after RFA, and the results were evaluated using the Advanced Dynamic Flow (ADF) imaging technique. Puncture was performed successfully using this probe for 20 cases with 20 nodules. It was confirmed that RFA with the PVT-350BTP permits percutaneous treatment to be performed more reliably than with a conventional probe.展开更多
文摘We report a case of hepatocellular carcinoma (HCC) with chronic hepatitis C virus (HCV) infection, suc-cessfully treated with percutaneous radiofrequency ablation (RFA) under new Live trhree-dimensional (3D) echo guidance for hearts probe before [1], but ,at the time, perform RFA with a new Live3D probe de- veloped flants. A 61 year-old Japanese man had a 3.5 cm in diameter HCC nodule in the liver S3 region. We applied the Live 3D ultrasonography during RFA therapy with a cool-tip needle electrode. The echo guidance facilitated an accurate approach for the needle puncture. The guidance was also useful for confirming, whether an adequate safety marging for the nodule had been obtained. Thus new Live 3D ul-trasonography echo technique appears to provide safe guidance of RFA needles via accurate targeting of HCC nodules, thereby allowing real-time visualize- tion when combined with echo contrast.
文摘Radiofrequency ablation (RFA) has been clinically employed in Japan, and its usefulness in the treatment of hepatocellular carcinoma (HCC) has been reported by many researchers. In the present study, the convex puncture probe PVT-350BTP, rather than a conventional convex probe, was used for RFA for the treatment of HCC and its usefulness was assessed. At the same time, evaluation of the therapeutic effect using ultrasound contrast agent was investigated. The subjects were 20 patients (16 men and 4 women) with 20 HCC nodules as confirmed by contrast CT or abdominal angiography. No nodules were ≤1.0 cm in diameter, 12 were 1.1 cm - 2.0 cm, and 8 were 2.1 cm - 3.0 cm. An Aplio diagnostic ultrasound system (Toshiba Medical Systems, Tokyo, Japan) and the PVT-350BTP probe (Toshiba) were employed for RFA. The PVT-350BTP supports puncture angles of 55, 70, 85, and 100 degrees. By mounting various types of puncture adapters on the probe, 13 G to 22 G puncture needles can be used. The needle can easily be attached and detached by operating a lever. Contrast echo studies with Levovist were performed before and after RFA, and the results were evaluated using the Advanced Dynamic Flow (ADF) imaging technique. Puncture was performed successfully using this probe for 20 cases with 20 nodules. It was confirmed that RFA with the PVT-350BTP permits percutaneous treatment to be performed more reliably than with a conventional probe.
