Gantry rotation
AssigneeSpectrum Dynamics Medical Limited
InventorsNathaniel ROTH, Yoel ZILBERSTIEN, Shlomo BEN-HAIM, Benny ROUSSO
Life of this patent
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Abstract
An N-M tomography system comprising: a carrier for the subject of an examination procedure; a plurality of detector heads; a carrier for the detector heads; and a detector positioning arrangement operable to position the detector heads during performance of a scan without interference or collision between adjacent detector heads to establish a variable bore size and configuration for the examination. Additionally, collimated detectors providing variable spatial resolution for SPECT imaging and which can also be used for PET imaging, whereby one set of detectors can be selectably used for either modality, or for both simultaneously.
Claims32
A method of nuclear medicine imaging comprising:
- providing a nuclear medicine tomography system comprising:
- a support for a subject of a tomography procedure, the subject having a region of interest (ROI), said support having an axis;
- a detector carrier, wherein at least one of said subject support and said detector carrier is movable axially relative to the other;
- wherein said detector carrier is rotatable about said support;
- a plurality of detector heads mounted on said detector carrier, at least some of said detector heads each configured to be extended along a respective extension axis between said detector carrier and the ROI, from a first, most retracted position relative to said detector carrier, to a second position closer to the ROI than said first position, and to be retracted from said second position to said first position;
- selecting a bore geometry for said tomography system, said bore geometry based on a part of the subject's body having the ROI;
- linearly extending each of a plurality of said plurality of detector heads along a respective said extension axis from a respective said first position to respective said second position, based on said selected bore geometry;
- rotating said detector carrier and acquiring images of said region of interest.
Dependencies are inferred from the claim text.