Xerography or electrophotography is a dry photocopying technique. Its fundamental principle was invented by Hungarian physicist PÃ¡l SelÃ©nyi and based on SelÃ©nyi's publications Chester Carlson applied for and was awarded U.S. Patent 2,297,691 on October 6, 1942. The technique was originally called electrophotography.
A retrospective, generally, is a look back at events that took place, or works that were produced, in the past. As a noun, retrospective has specific meanings in medicine, software development, popular culture and the arts. It is applied as an adjective, synonymous with the term retroactive, to laws, standards, and awards.
It is our goal to help the physicians who are currently treating you focus their approach to treatment. NeuroSPECT imaging can provide invaluable clinical information that may benefit treatment. A NeuroSPECT scan is a medical procedure that illustrates Regional Cerebral Blood Flow (rCBF), or blood flow to the brain.t is our goal to help the physicians who are currently treating you focus their approach to treatment. NeuroSPECT imaging can provide invaluable clinical information that may benefit treatment. A NeuroSPECT scan is a medical procedure that illustrates Regional Cerebral Blood Flow (rCBF), or blood flow to the brain.