Rotating quadrant slant-hole SPECT scintimammography: An initial investigation

Daniel E. Wessell, Benjamin M.W. Tsui, Eric C. Frey, Seemeen S. Karimi

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations


The use of rotating quadrant slant-hole (RQSH) collimation in single photon emission computed tomography (SPECT) scintimammography (SM) is investigated. A RQSH collimator acquires a complete set of projection data for fully 3-D reconstruction of the breast with 90 degrees of collimator rotation at each of 2-3 collimator-detector positions around the breast. The use of a 90-120 degree arc allows the collimator to remain close to the breast throughout the data acquisition, providing better resolution in the reconstructed image as compared to the conventional parallel-hole collimation SPECT acquisition. In addition, a RQSH collimator for SPECT SM has 2.8-3.5 times the efficiency of a conventional parallel-hole collimator with equivalent resolution.

Original languageEnglish (US)
Number of pages5
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA
Duration: Nov 9 1997Nov 15 1997


OtherProceedings of the 1997 IEEE Nuclear Science Symposium
CityAlbuquerque, NM, USA

ASJC Scopus subject areas

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


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