Performance evaluation of a small field-of-view, mobile PET/SPECT system

Matthew T. Studenski, J. G. Parker, D. R. Gilland, S. Majewski, B. Hammond

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper reports on the initial performance evaluation of a small field-of-view, mobile PET/SPECT system for bedside imaging. The system was designed to move within a hospital to image patients who cannot easily be transported to a conventional PET or SPECT facility, for example, patients within an intensive care unit (ICU). The focus of the system is cardiac imaging in which both viability (18F fluorodeoxyglucose; FDG) and perfusion (99mTc Sestamibi) images are desired. This paper evaluates the capabilities of the mobile system for acquisitions at both 140 keV (Tc-99m) and at 511 keV (F-18) operated in single photon counting mode. Parameters evaluated were the planar and reconstructed SPECT spatial resolution, the intrinsic energy resolution, sensitivity, and the count rate capability. Results demonstrate an intrinsic energy resolution of 32% at 140 keV and 23% at 511 keV, a planar intrinsic spatial resolution of 0.56 cm full width half-maximum (FWHM) at 140 keV and 0.61 cm FWHM at 511 keV, a system spatial resolution at 10 cm of 1.14 cm FWHM for both 140 keV and 511 keV, a reconstructed SPECT spatial resolution of 1.37 cm at 140 keV (22 cm radius-ofrotation), a sensitivity of 3.1 counts·μCi-1·s-1 at 140 keV and 0.48 counts·μCi-1·s-1 at 511 keV, and a maximum count rate of 1.46×105 counts/s at 140 keV and 1.56×105 counts/s at 511 keV.

Original languageEnglish (US)
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages3770-3773
Number of pages4
DOIs
StatePublished - Dec 1 2007
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: Oct 27 2007Nov 3 2007

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume5
ISSN (Print)1095-7863

Other

Other2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
CountryUnited States
CityHonolulu, HI
Period10/27/0711/3/07

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ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Studenski, M. T., Parker, J. G., Gilland, D. R., Majewski, S., & Hammond, B. (2007). Performance evaluation of a small field-of-view, mobile PET/SPECT system. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (pp. 3770-3773). [4436943] (IEEE Nuclear Science Symposium Conference Record; Vol. 5). https://doi.org/10.1109/NSSMIC.2007.4436943