Desktop open-gantry spect imaging system
AssigneeParto Negar Persia Co.
InventorsNavid Zeraatkar, Mohammad Hossein Farahani, Mohammad Reza Ay, Saeid Sarkar
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Abstract
An open-gantry structure of SPECT imaging system for scanning human small organs or small animals and method for preparing the system is disclosed. The system contains an imaging desk that one or multiple detector heads are rotated around the object to be scanned while tilted under the imaging desk and dedicated image reconstruction algorithm was developed for the system in case of applying single pinhole collimator.
Claims20
A single-photon emission computed tomography (SPECT) imaging system comprising:
- an imaging desk located in a first plane;
- and
- a head located below the imaging desk and configured to rotate around an object to be imaged, wherein:
- the head is coupled to a motor and includes a detector and a collimator,
- the head is configured to rotate in a second plane parallel to the first plane, and
- the head is tilted under the imaging desk with a tilt angle being in a range of 0° to 90°.
A method for data acquisition in a SPECT imaging system, wherein the SPECT imaging system has an open-gantry structure and includes an imaging desk and a head located below the imaging desk and configured to rotate around an object to be imaged, the method comprising:
- placing the object on or beneath the imaging desk located in a first plane;
- rotating the head around the object while the head is tilted underneath the imaging desk;
- acquiring a plurality of projection views of the object;
- and
- storing the acquired projection views, wherein:
- rotating the head around the object includes rotating the head in a second plane spaced apart from the first plane and parallel to the first plane.
A method of obtaining a 3-D map of activity concentration in a SPECT imaging system, wherein the SPECT imaging system has an open-gantry structure and includes an imaging desk and a head located below the imaging desk and configured to rotate around an object to be imaged, the method comprising:
- placing the object on or beneath the imaging desk resting in a first plane;
- rotating the head around the object while the head is tilted underneath the imaging desk;
- acquiring a plurality of 1-dimensional or 2-dimensional projection views of the object;
- storing the plurality of projection views;
- and
- performing a tomographic reconstruction algorithm for calculation of a 3-D map of activity concentration from the plurality of projection views, wherein:
- rotating the head around the object includes rotating the head around the object in a second plane parallel to the first plane.
Dependencies are inferred from the claim text.