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Resolution Properties of a Prototype Continuous Miniature Crystal Element (cMiCE) Scanner.
Miyaoka, Robert S; Li, Xiaoli; Hunter, William; Pierce, Larry A; McDougald, Wendy; Kinahan, Paul E; Lewellen, Thomas K.
Afiliación
  • Miyaoka RS; University of Washington Department of Radiology, Seattle, WA USA (phone: 206-543-2084; fax: 206-543-8356; rmiyaoka@u.washington.edu ).
  • Li X; University of Washington Department of Physics, Seattle, WA USA ( lixiaoli@u.washington.edu ).
  • Hunter W; University of Washington Department of Radiology, Seattle, WA USA ( wcjh@u.washington.edu ).
  • Pierce LA; University of Washington Department of Radiology, Seattle, WA USA ( lapierce@u.washington.edu ).
  • McDougald W; University of Washington Department of Radiology, Seattle, WA USA ( wam2@u.washington.edu ).
  • Kinahan PE; Paul E. Kinahan is with the University of Washington Department of Radiology, Seattle, WA USA ( kinahan@uw.edu ).
  • Lewellen TK; University of Washington Department of Radiology, Seattle, WA USA ( tkldog@u.washington.edu ).
IEEE Trans Nucl Sci ; 58(5)2011 Oct.
Article en En | MEDLINE | ID: mdl-24347676
Continuous miniature crystal element (cMiCE) detectors are a potentially lower cost alternative for high resolution discrete crystal PET detector designs. We report on performance characteristics of a prototype PET scanner consisting of two cMiCE detector modules. Each cMiCE detector is comprised of a 50 × 50 × 8 mm3 LYSO crystal coupled to a 64 channel multi-anode PMT. The cMiCE detectors use a statistics-based positioning method based upon maximum likelihood estimation for event positioning. By this method, cMiCE detectors can also provide some depth of interaction event positioning information. For the prototype scanner, the cMiCE detectors were positioned across from one another on a horizontal gantry with a detector spacing of 10.7 cm. Full tomographic data were collected and reconstructed using single slice rebinning and filtered back projection with no smoothing. The average image resolutions in X (radial), Y (transverse) and Z (axial) were 1.05 ± 0.08 mm, 0.99 ± 0.07 mm, 1.24 ± 0.31 mm FWHM. These initial imaging results from a prototype imaging system demonstrate the outstanding image resolution performance that can be achieved using the potentially lower cost cMiCE detectors.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: IEEE Trans Nucl Sci Año: 2011 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: IEEE Trans Nucl Sci Año: 2011 Tipo del documento: Article Pais de publicación: Estados Unidos