![]() ![]() ![]() Photon radiotherapy was performed at both centers and proton beam therapy was performed at one. The study was performed in two centers from January 2019 to August 2020, and was approved by both institutional review boards (R01-160, Tsukuba Clinical Research & Development Organization 2019–038, Tsukuba Medical Center Hospital). Here, we report a multicenter prospective observational study of the perception of light flashes during photon radiotherapy and proton beam therapy. However, the details of the characteristics of the light that patients see have not been described. detected Cherenkov light through a patient eye during stereotactic radiotherapy. Several recent clinical reports indicate that patients rarely see dazzling light during radiotherapy, but light that is sensed is considered to be Cherenkov light. In MV radiation therapy, Cherenkov light is produced throughout irradiated tissue, with intensity proportional to the local absorbed dose. Subsequently, Pavel Alekseyevich Cherenkov, a Russian scientist, first described blue light emission in 1934. ![]() Cherenkov light was first observed by Marie Curie in 1910 as a pale blue light from concentrated radium in a dark room. This phenomenon is referred to as phosphene or more recently as Cherenkov light, ,, which is due to visible photons produced when a charged particle travels through a transparent medium at a speed greater than the speed of light in that medium. Some patients who receive radiation therapy complain that a light appears, even when they close their eyes. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |