Design of hemispherical radio frequency (RF) capacitive-type electrode free of edge effects for treatment of intracavitary tumors.

A new hemispherical electrode to heat oral cavity cancer is proposed. The electrode does not produce a hot spot around its edge, a feature that usually arises when using radio frequency (RF) capacitive-type heating. The hemispherical electrode was designed by computer simulation using a 3-D finite element method.

Acute morbidity of proton therapy for prostate cancer: the Hyogo Ion Beam Medical Center experience.

Purpose: To investigate the incidence and influencing factors of acute genitourinary (GU) and gastrointestinal morbidities in patients with prostate cancer treated with proton therapy.

Methods And Materials: A total of 287 patients with histologically proven Stage cT1-T4N0M0 prostate cancer were treated with proton therapy between 2003 and 2004. Of these, 204 (71%) received neoadjuvant androgen suppression therapy.

A case of hepatocellular carcinoma initially treated by carbon ions, followed by protons for marginal recurrence with portal thrombus.

We report a case of hepatocellular carcinoma (HCC), initially treated by carbon ions, then subsequently by protons for marginal recurrence. A 52-year-old man with stage II HCC was enrolled in the clinical study for carbon ion therapy. A total dose of 52.

Status of the clinical work at Hyogo.

On April 1, 2001, the Hyogo Ion Beam Medical Center (HIBMC) was opened as the first facility in the world to provide ion beam therapy using 2 types of beams, protons and carbon-ions. We will introduce the HIBMC, and report the results of the clinical study and general practice.