The development of multiple line transmission sources for SPECT

• Main Author: Sitek, Arkadiusz
• Language: English
• Published: 2009
• Online Access: http://hdl.handle.net/2429/8643

In this work a new kind of transmission source for SPECT imaging, based on multiple line sources, is presented. The source may be used for either simultaneous or sequential SPECT transmission imaging to measure patient specific attenuation maps. Two different, new transmission sources based on the multiple line concept, the collimated line sources and the multiple line array, were proposed and tested using computer simulations. Based on simulations, prototypes of the transmission sources were built, and series of experiments were performed. Computer simulations and experiments showed that multiple line transmission sources provided accurate attenuation maps. Compared with other transmission sources, the multiple line transmission sources do not require complicated hardware or expensive maintenance, but still give good quality attenuation maps. The multiple line array transmission source has been adopted for commercial use by Siemens Medical Systems with their ecam SPECT camera.