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CAT Scan, Single-Photon Emission -- See Tomography, Emission-Computed, Single-Photon


A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image 		  1
 

CAT Scan, Spiral -- See Tomography, Spiral Computed


Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures 		  1
 

CAT Scan, X Ray -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image 		  1
 

CAT Scanner, X-Ray -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed 		  1
 

CAT Scanners, X-Ray -- See Tomography Scanners, X-Ray Computed


X-ray image-detecting devices that make a focused image of body structures lying in a predetermined plane from which more complex images are computed 		  1
 

CAT Scans, 4D -- See Four-Dimensional Computed Tomography


Three-dimensional computed tomographic imaging with the added dimension of time, to follow motion during imaging 		  1
 

CAT Scans, Cone-Beam -- See Cone-Beam Computed Tomography


Computed tomography modalities which use a cone or pyramid-shaped beam of radiation 		  1
 

CAT Scans, Four-Dimensional -- See Four-Dimensional Computed Tomography


Three-dimensional computed tomographic imaging with the added dimension of time, to follow motion during imaging 		  1
 

CAT Scans, Radionuclide -- See Tomography, Emission-Computed


Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image 		  1
 

CAT Scans, Spiral -- See Tomography, Spiral Computed


Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures 		  1
 

CAT Scans, X-Ray -- See Tomography, X-Ray Computed


Tomography using x-ray transmission and a computer algorithm to reconstruct the image 		  1
Cat-scratch disease. : Bartonella and Afipia species emphasizing Bartonella henselae / volume editor, Axel Schmidt  1998 1
 

Cat-scratch fever -- See Cat-scratch disease


  1
 

Cat Woman (Fictitious character) -- See Catwoman (Fictitious character)


  1
 

Cata (Micronesia) -- See Puluwat Atoll (Micronesia)


  1
 

Catabaptists -- See Anabaptists


  1
Catabato (Philippines) -- Politics and government : Making Mindanao : Cotabato and Davao in the formation of the Philippine nation-state / Patricio N. Abinales  2000 1
  Catabolism -- 2 Related Subjects   2
 

Cataclysmic binary stars -- See Cataclysmic variable stars


  1
  Cataclysmic variable stars -- 3 Related Subjects   3
Cataclysmic variable stars   7
Cataclysmic variable stars -- Observations : Bridging the gap : elusive explosions in the local universe / Mansi M. Kasliwal  2011 1
 

Cataclysmic variables (Stars) -- See Cataclysmic variable stars


  1
Catacomben. : The Via Latina catacomb : imitation and discontinuity in fourth-century Roman painting / William Tronzo  1986 1
Catacombs   11
Catacombs -- Congresses : The conservation of subterranean cultural heritage / editor, Cesareo Saiz-Jimenez, Instituto de Recursos Naturales y Agrobiologia, Consejo Superior de Investigaciones Cientificas (IRNAS-CSIC), Sevilla, Spain  2014 1
Catacombs -- France -- Paris : Cities of the underworld. Season 1, episode 5, Catacombs of death / producer, Allison Hynes ; produced by Authentic Entertainment, Inc. in association with Thirty Four Productions, LLC for the History Channel  2007 1
Catacombs -- France -- Paris -- History : Making space for the dead : catacombs, cemeteries, and the reimagining of Paris, 1780-1830 / Erin-Marie Legacey  2019 1
Catacombs -- Germany -- Bavaria : Bedazzled saints : catacomb relics in early modern Bavaria / Noria K. Litaker  2023 1
 

Catacombs Italy -- See Also the narrower term Via Latina Catacomb (Rome, Italy)


  1
Catacombs -- Italy -- Rome   3
 

Catadioptric lenses -- See Catadioptric systems


  1
 

Catadioptric systems -- See Also the narrower term Schmidt telescopes


  1
Catadioptric systems.   3
Catadioptric systems -- Design and construction : Design and mounting of prisms and small mirrors in optical instruments / Paul R. Yoder, Jr  1998 1
 

Catadyptes -- See Crested penguins


  1
Cataio (Battaglia Terme, Italy) / http://id.loc.gov/authorities/subjects/sh2003011661 : Zelotti's epic frescoes at Cataio : the Obizzi saga / Irma B. Jaffe ; with Gernando Colombardo  2008 1
 

Caṭakōpar -- See Nammāḻvār


  1
 

Catal -- See Qatar


  1
Çatal Hüjük. : Protecting Çatalhöyük : memoir of an archaeological site guard / Sadrettin Dural ; with contributions by Ian Hodder ; translated by Duygu Camurcuoğlu Cleere  2007 1
Çatal Hüyük : Religion in the emergence of civilization : Çatalhöyük as a case study / edited by Ian Hodder  2010 1
 

Çatal Hüyük (Turkey) -- See Çatal Mound (Turkey)


  1
Antiquities, Prehistoric -- Turkey -- Çatal Mound   3
Archaeology -- Social aspects -- Turkey -- Çatal Mound : Why those who shovel are silent : a history of local archaeological knowledge and labor / Allison Mickel  2021 1
Community archaeology -- Turkey -- Çatal Mound : Why those who shovel are silent : a history of local archaeological knowledge and labor / Allison Mickel  2021 1
Excavations (Archaeology) -- Turkey -- Çatal Mound   3
Neolithic period -- Turkey -- Çatal Mound   3
Pottery, Ancient -- Turkey -- Çatal Mound : The Matter of Çatalhöyük: Reports from the 2009-2017 Seasons  2021 1
Religion, Prehistoric -- Turkey -- Çatal Mound : Violence and the sacred in the ancient Near East : Girardian conversation at Catalhoyuk / edited by Ian Hodder  2019 1
Çatal Mound (Turkey)   9
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