# Image reconstruction algorithm for a rotating slat collimator.

@article{Zeng2002ImageRA, title={Image reconstruction algorithm for a rotating slat collimator.}, author={Gengsheng Lawrence Zeng and Daniel Gagnon and Christopher G. Matthews and Jeffery A. Kolthammer and Jason D. Radachy and William G. Hawkins}, journal={Medical physics}, year={2002}, volume={29 7}, pages={ 1406-12 } }

A slat collimator in single photon emission computed tomography consists of a set of parallel slats. As the collimator spins, the detector measures a one-dimensional projection data set. A complete data set can be obtained by rotating the detector/collimator assembly around the object (patient) while the collimator spins continuously. The measured projection data are assumed to be weighted planar integrals of the object. This paper describes the development of an approximate three-dimensional…

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## 29 Citations

Image reconstruction algorithm for a SPECT system with a convergent rotating slat collimator

- PhysicsIEEE Transactions on Nuclear Science
- 2004

In this paper, we suggest the use of a convergent rotating slat collimator in a SPECT system that contains strip-shaped CdZnTe detectors. This CdZnTe imaging device is able to provide better energy…

A sparse collimator for a rotating strip SPECT camera

- Physics2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515)
- 2003

This paper suggests the use of a sparse parallel slat collimator in a rotating SPECT camera using a new design that significantly simplifies the detector's hardware and reduces the detector spinning angle from 360/spl deg/ to 180/ spl deg/ for acquiring a complete data set.

3D RBI-EM reconstruction with spherically-symmetric basis function for SPECT rotating slat collimator.

- PhysicsPhysics in medicine and biology
- 2004

This paper proposes a 3D RBI-EM reconstruction algorithm with spherically-symmetric basis function, also called 'blobs', for the slat collimator, which has a closed and spheric symmetric analytical expression for the 3D Radon transform, which makes it easier to compute the plane integral than the voxel.

3D RBI-EM reconstruction with spherically-symmetric basis function for SPECT rotating slat collimator

- Physics
- 2004

A single photon emission computed tomography (SPECT) rotating slat collimator with strip detector acquires distance-weighted plane integral data, along with the attenuation factor and…

Image reconstruction algorithm for a spinning strip CZT SPECT camera with a parallel slat collimator and small pixels.

- PhysicsMedical physics
- 2004

This paper discusses the use of small pixels in a spinning CdZnTe single photon emission computed tomography (SPECT) camera that is mounted with a parallel slat collimator that has an advantage over the older design that uses tilted slats.

Comparing planar image quality of rotating slat and parallel hole collimation: influence of system modeling

- PhysicsPhysics in medicine and biology
- 2008

A comparative study of image quality, achieved with system modeling, is presented and shows that cold spot imaging is slightly better for a RS collimator than a classical PHcollimator, while hot spot contrast improvement is revealed up to 54% compared to a classicalPH bone scan.

Design considerations for a new solid-state gamma-camera: Soltice

- Physics2001 IEEE Nuclear Science Symposium Conference Record (Cat. No.01CH37310)
- 2001

This paper presents an alternative to a conventional gamma camera. The proposed system is based on the combination of a new detection material - CZT - and a new acquisition geometry - 1D detector…

A local iterative reconstruction algorithm for planar integral data

- Mathematics2002 IEEE Nuclear Science Symposium Conference Record
- 2002

In this paper we develop an iterative algorithm for a set of parallel weighted or unweighted planar integrals of an object. The object is relative large and the entire object is not sufficiently…

A Rotating Scatter Mask for Inexpensive Gamma-Ray Imaging in Orphan Source Search: Simulation Results

- Physics, MedicineIEEE Transactions on Nuclear Science
- 2015

The Rotating Scatter Mask system is an inexpensive retrofit that provides imaging capabilities to scintillating detectors that was designed to search for lost or stolen radioactive material, also known as the orphan source problem.

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