High linear energy transfer (LET) heavy charged particles have previously been applied clinically to human cancer radiotherapy because of their excellent physical properties of selective dose distribution and higher relative biological effectiveness (RBE) for human; however, such an approach has yet to be applied to cat patients. The present study investigates the biological effectiveness of lo...

Primary cardiac liposarcoma is very rare and usually asymptomatic. It is often diagnosed at an advanced or incurable stage without being presented in surgical operation. We report a man in his early sixties with primary cardiac liposarcoma originating from the ventricular septum. The malignant nature of the tumor was suspected by positron emission tomography using fluorine-18 fluorodeoxyglucose...

Hadron beams have attractive growing interest for cancer treatment owing to their high dose localization around the Bragg peak. Heavier-ions such carbon-ion beams, in particular, can realize higher 3D dose localization, compared with a proton beam, owing to a highly biological effect around the Bragg peak and a low multiple scattering effect. Recently, therefore, hadron cancer radiotherapy has ...