Design and evaluation of headtome-IV, a whole-body positron emission tomograph

Hidehiro Iida, Shuichi Miura, Iwao Kanno, Matsutaro Murakami, Kazuhiro Takahashi, Kazuo Uemura, Yoshiharu Hirose, Masaharu Amano, Seiichi Yamamoto, Kazumi Tanaka

Research output: Contribution to journalArticlepeer-review


A whole body positron emission tomograph HEADTOME- IV has been developed, and its physical performances were investigated. The in-plane spatial resolution of 4.5-mm was realized with stationary-sampling at the center of the field-of-view. The axial slice thickness was 9.5 and 9.0-mm for direct and cross planes, respectively. By moving the gantry framework axially, transaxial images of 14 or 21 slices are obtained quasi-simultaneously. The real time-operation large-scale cache memory system was effective to realize (1) real time corrections for deadtime and radionuclide decay, and (2) realtime weighted integration for the purpose of a rapid calculation of rate-constant images.

Original languageEnglish
Pages (from-to)1006-1010
Number of pages5
JournalIEEE Transactions on Nuclear Science
Issue number1
Publication statusPublished - 1989 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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