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MO‐A‐I‐617‐01: PET Systems: Instrumentation and Data Acquisition
Author(s) -
Fahey F
Publication year - 2005
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.1999665
Subject(s) - positron emission tomography , data acquisition , instrumentation (computer programming) , detector , correction for attenuation , medical physics , computer science , pet ct , nuclear medicine , physics , medicine , telecommunications , operating system
Positron emission tomography or PET is now considered one of the most important clinical imaging modalities, particularly in the fields of oncology and neurology. In addition, the application of PET to cardiology is swiftly growing. This presentation will discuss the instrumentation as well as the data acquisition associated with state‐of‐the‐art PET systems including PET‐CT. This talk will review the basics of positron emission, annihilation coincidence detection and instrumentation design. It will review detector designs in state‐of‐the‐art PET systems including the choice of detector materials. We will also describe both 2D and 3D PET data acquisition modes and the merits of each. We will discuss random coincidences, scatter and attenuation correction and current approaches being used to correct for these. For attenuation correction, calculated methods, measured methods using rotating rod sources as well as the use of CT will be discussed. At the end of this presentation, the participants will be able to: 1. list 3 detector materials routinely used in PET and at least one advantage or disadvantage of each, 2. describe the difference between 2D and 3D PET data acquisition. 3. discuss 3 current methods of attenuation correction used in PET and