OGAWA, T., UEMURA, K., KANNO, I., SHISHIDO, F., INUGAMI, A., YAMAGUCHI, T., MURAKAMI, M., HIRATA, K., KATO, T., MINEURA, K. and KOWADA, M. Delayed Radiation Necrosis of Brain Evaluated Positron Emission Tomography. Tohoku J. exp. Med., 1988, 155 (3), 247-260 In four patients highly suspected of having delayed radiation necrosis of the brain, regional cerebral blood flow and metabolism were stud...

Clinical and experimental studies suggest that acute or chronic renal injury could occur after certain types of radiation accidents. Such renal injury could be life-threatening in its own right, could exacerbate other radiation injuries and could complicate the treatment of non-radiation injuries. The clinical experience with therapeutic bone marrow transplantation (BMT) indicates that acute re...

Recent world events have increased concern that hospitals must be prepared for radiological emergencies. Emergency departments (EDs) must be ready to treat patients suffering from injuries in combination with radiation exposure or contamination with radioactive material. Every hospital should have a Radiological Emergency Medical Response Plan, tested through periodic drills, which will allow e...

Dr. Akashi started his medical career at Jichi Medical School (Tochigi Prefecture) as a junior resident of internal medicine in 1981. He next worked as a senior resident in the Division of Hematology of Jichi Medical School and in 1987 moved to the Division of Hematology/Oncology at UCLA School of Medicine in 1987. He received a Ph. D. from Jichi Medical School in 1988. He has been a staff memb...

Introduction: Ionizing radiations are the hazardous agents in the workplace and all forms of ionizing radiation produce some type of injuries. Awareness of application of protection guidelines and knowledge of the principles of radiation protection can play an important role in health of employees. Survey of radiation employee’s levels of awareness and practical behavior is essential and ...

A computer code ICARUS (Injuries CAused by Radiation Upon the Skin) has been developed for evaluating the time to second degree burn injury from thermal radiation. This paper introduces the modelling methodology incorporated in ICARUS and illustrates the validation of the code. It solves the heat transfer problem associated with simultaneous radiation, conduction and convection within a multila...

Mediastinal radiation is commonly used to treat Hodgkin's and non-Hodgkin's lymphoma, lung and breast cancer. Cardiac complications after radiation therapy are well described, although rare. A large spectrum of injuries can occur, causing long term morbidity among survivors. We describe a case of post-actinic ascending aortic wall thickening that prevented saphenous vein proximal anastomosis an...

Over the past 40 years, hyperbaric oxygen (HBO2) therapy has been recommended and used in a wide variety of medical conditions. In the 1950s, HBO2 was first used as a treatment, in addition to radiation, for head and neck cancers and cervical cancer. Many studies have been conducted to investigate possible therapeutic effects HBO2 as part of cancer management. Evidences showed that HBO2 improve...

The expression of vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF)2 in the irradiated brain was examined to test how a single high dose radiation, similar to that used for intraoperative radiation therapy given to the normal cerebrum, can affect the vascular endothelium. After a burr hole trephination in the rat skull, the cerebral hemisphere was exposed to a single ...