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Single-photon emission-computed tomography (SPECT) [PDF]

, 1998
Abstract Although the principles of single-photon ennssioncomputed tomography (SPECT) have been well understood for many years and several centres were using SPECT clinically in the late 1960s and early 1970s, there has been a dramatic increase in the number of SPECT installations in recent years. In the early 1980s, however, SPECT was a
Howard G. Gemmell, Roger T. Staff
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Single Photon Emission Computed Tomography of the Thyroid*

The Journal of Clinical Endocrinology & Metabolism, 1988
Single photon emission computed tomography (SPECT) entails imaging at multiple positions along an arc and computed-assisted reconstruction of transaxial, coronal, and sagittal images. To determine if SPECT imaging of the thyroid augments information provided by planar imaging, both SPECT and pinhole planar scans were performed in 52 patients with ...
Norman LaFrance, James J. S. Chen, David S. Cooper, Maria D. Allo, Paul W. Ladenson   +4 more
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Hepatic Hemangioma Diagnosis by Emission Computed Tomography

Clinical Nuclear Medicine, 1986
Hepatic hemangiomas in an asymptomatic patient usually require no treatment. Therefore, noninvasive diagnosis of this entity is critical to avoid an unnecessary diagnostic laparotomy and/or closed biopsy, the latter potentially leading to massive or fatal hemorrhage.
Mark A. Talley, Joe C. Leonard, Dan L. Nguyen   +2 more
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Introduction to neutron stimulated emission computed tomography

Physics in Medicine and Biology, 2006
Neutron stimulated emission computed tomography (NSECT) is presented as a new technique for in vivo tomographic spectroscopic imaging. A full implementation of NSECT is intended to provide an elemental spectrum of the body or part of the body being interrogated at each voxel of a three-dimensional computed tomographic image.
Georgia D. Tourassi, Janelle E. Bender, Joseph Y. Lo, Anuj J. Kapadia, C. R. Howell, A. S. Crowell, Jessie Q. Xia, Carey E. Floyd, A.C. Sharma, Brian P. Harrawood   +9 more
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Single Positron Emission Computed Tomography

2007
Single photon emission computed tomography (SPECT) allows the user to obtain a threedimensional (3D) representation of the patient’s in vivo radiopharmaceutical distribution. Planar nuclear imaging leads to a twodimensional (2D) image of a 3D object.
Beth A. Harkness, Frederic H. Fahey
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Myocardial Imaging Using Emission Computed Tomography

Radiology, 1978
Single-photon emission computed tomography (ECT) was evaluated during myocardial studies in dogs. Acute anterior and posterior infarcts were imaged following injection of 99mTc-pyrophosphate or 201Tl. In most cases, tomographic delineation of infarct location and extent correlated with tissue section.
D. J. Svetkoff, W. L. Rogers, John W. Keyes, P. F. Leonard, Benedict R. Lucchesi, Steven L. Brody   +5 more
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Attenuation Correction in Gamma Emission Computed Tomography

Journal of Computer Assisted Tomography, 1981
A method of computing tomographic images from single photon radionuclide emission data is presented. The method takes into account attenuation of gamma rays inside the source and makes use of an iterative technique, based on the difference between the projection data obtained from the source and computed projections, called reprojections, from ...
David A. Chesler, Timothy E. Walters, William Simon, John A. Correia   +3 more
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Single-Photon Emission Computed Tomography

2016
Single-Photon Emission Computed Tomography (SPECT) is the most widely used nuclear imaging technique in cardiology, playing an important role in the detection of coronary artery disease (CAD), viability assessment, and risk stratification. Myocardial perfusion imaging (MPI) improves the sensitivity and specificity over standard exercise stress testing ...
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Single Photon Emission Computed Tomography

2006
Conventional gamma cameras provide two-dimensional planar images of three-dimensional objects. Structural information in the third dimension, depth, is obscured by superimposition of all data along this direction. Although imaging of the object in different projections (posterior, anterior, lateral, and oblique) gives some information about the depth ...
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Single-photon emission computed tomography

Proceedings of the IEEE, 1983
The subject of singl-photon emission computed tomography (SPECT) is generally reviewed. The basic interaction processes of gamma rays in matter are outlined, and the formation of conventional gamma-ray images is described. We then outline the extension of these concepts to the formation of three-dimensional or tomographic images.
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