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Topic: Computer assisted tomography

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Fluoroscopy

Cardiology diagnostic tests and procedures

Medical imaging

Positron emission tomography

Magnetic resonance imaging

Medical ultrasonography

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	Computed tomography - Wikipedia, the free encyclopedia
		Computed tomography (CT), originally known as computed axial tomography (CAT) and body section roentgenography, is a medical imaging method employing tomography where digital processing is used to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation.
		The word "tomography" is derived from the Greek tomos (slice) and graphia (describing).
		Their computer systems integrate the data of the moving individual slices to generate three dimensional volumetric information, in turn viewable from multiple different perspectives on attached CT workstation monitors.
	en.wikipedia.org /wiki/Computed_axial_tomography (1529 words)

	Physiology or Medicine 1979 - Press Release
		Computed tomography, on the other hand, provides in each section a very detailed picture of the brain and its cavities as well as the fluid-filled spaces surrounding the brain, i.e., the cisterns and subarachnoid spaces, everything visible directly on the picture.
		With computed tomography it is possible to carefully analyze all these factors, from a scaled image of the body on a level with the tumor.
		His contributions to the development of the theory of computer-assisted tomography was early and anticipated the coming development by several years by being the first to state the principles for reconstructing a cross-section of tissues in an organ based on these X-ray projections.
	nobelprize.org /medicine/laureates/1979/press.html (1803 words)

	Emil Balthazar M.D.
		Balthazar EJ; Chako AC."Computerized tomography in acute gastrointestinal disorders".
		Subramanyam BR; Bosniak MA; Horii SC; Megibow AJ; Balthazar EJ."Replacement lipomatosis of the kidney: diagnosis by computed tomography and sonography".
		Subramanyam BR; Balthazar EJ; Naidich DP."Ruptured hydatid cyst with biliary obstruction: diagnosis by sonography and computed tomography".
	www.med.nyu.edu /pubs/balthe01.html (2252 words)

	Journal of Computer Assisted Tomography - Fulltext: = Volume 22(1) January/February 1998 p 139-152 Automated Image = ...
		To improve speed, = the cost=20 function is initially computed for only a limited sampling of the voxels = (the=20 default is every 81st voxel) and sampling is increased with subsequent=20 iterations (the default is by factors of three to reach a final sampling = of=20 every voxel).
		The derivatives of the cost function with respect to the=20 parameters of the spatial transformation model are computed and are used = to=20 compute new parameters and iteratively minimize the cost function.
		Squared = local=20 discrepancies are computed for all voxels that correspond to parts of = the brain=20 that are represented in all of the images, and these squared values are = summed=20 across voxels and across all possible pairwise registrations to generate = a=20 global summed squared discrepancy.
	www.cs.jhu.edu /~cis/cista/746/papers/woods98.mht (8413 words)

	Mathematics Awareness Week 1994
		With their ability to make many calculations quickly, computers transform vast streams of raw data gathered by scanning machines into vivid images of tumors, infections, internal bleeding, and other life-threatening conditions.
		In CAT scanning, an X-ray scanner probes the patient from multiple angles, gathering information on the density of internal organs and tissues.
		In a medical situation, the influence of mathematics in tomography usually ends when an individual scan shows the location of a tumor or a leaking artery.
	www.mathaware.org /mam/94/article2.html (699 words)

	Porous Media and Process Tomography Research Group - Publications
		Kantzas, A., "Monitoring Flow Phenomena in Porous Media Using Computer Assisted Tomography", Presented at the CT-workshop of the 1994 International Symposium of the Society of Core Analysts, Stavanger, Norway, Sept. 12-14, 1994.
		Kantzas, A., "Applications of Computer Assisted Tomography in the Quantitative Characterization of Porous Rocks", Presented at the CT-workshop of the 1994 International Symposium of the Society of Core Analysts, Stavanger, Norway, Sept. 12-14, 1994.
		Chatzis, I., Kantzas, A. and Dullien, F.A.L., "On the Investigation of Gravity Assisted Inert Gas Injection Using Micromodels, Long Berea Sandstone Core and Computer Assisted Tomography", SPE 18284, presented at the SPE Annual Technical Conference and Exhibition, held in Houston, Texas, October 2-5, 1988.
	www.ucalgary.ca /ench/PMPT/publications.html (9476 words)

	Principles and Use of Computer Assisted Tomography -- CAT Scans --
		tomography (CAT), computer-assisted tomography, computed tomography, CT, or body section roentgenography is a
		X-ray slice data is generated using an X-ray source that rotates around the object; X-ray sensors are positioned on the opposite side of the circle from the X-ray source.
		electron beam tomography (EBT) the tube is far larger, note the internal funnel shape in the photo, with a hollow cross-section and only the electron current is rotated.
	www.edinformatics.com /inventions_inventors/cat_scans.htm (878 words)

	MEDICAL IMAGING [RU 9544] - Smithsonian Videohistory Collection
		The introduction of this first full-body CAT (Computer Assisted Tomography)--or CT (Computerized Tomography)--scanner lead to advancement in medical imaging and diagnostic medicine, especially for non-invasive viewing of soft tissue inside the body.
		In 1974 he became a professor in the Medical Center's Department of Radiology and in 1975 was appointed director of the Medical Computing and Biophysics Division.
		David Griego, Georgetown University Medical Center CAT scanning supervisor and radiology specialist, and Seong Ki Mun, director of the Division of Imaging Physics were interviewed for their knowledge of current trends in the field of medical imaging.
	www.si.edu /archives/ihd/videocatalog/9544.htm (959 words)

	Radiology Associates CT Scan, Computer Assisted Tomography, CAT Scan
		Computed Tomography, CT Scan (or Computer Assisted Tomography/CAT Scan) is a simple, non-invasive, and painless diagnostic procedure.
		It utilizes xrays that focus on a specific area of the body, gathering multiple images from different angles to create a cross sectional and 3-dimensional picture.
		The information retrieved is processed through a computer and depicts the organ or tissue being scanned in excellent detail.
	www.xray4u.com /exams/cat_scan.php (657 words)

	David P. Naidich M.D.
		Naidich, David P."Computed tomography and magnetic resonance of the thorax".
		Harkin TJ; McGuinness G; Goldring R; Cohen H; Parker JE; Crane M; Naidich DP; Rom WN."Differentiation of the ILO boundary chest roentgenograph (0/1 to 1/0) in asbestosis by high-resolution computed tomography scan, alveolitis, and respiratory impairment".
		Naidich DP."High-resolution computed tomography of cystic lung disease".
	www.med.nyu.edu /pubs/naidid01.html (2235 words)

	Bill Lorensen Publications (Site not responding. Last check: 2007-10-16)
		Computer assisted Interactive Three- dimensional Planning for Neurosurgical Procedures.
		Cline, H., W. Lorensen, and W. Schroeder, "3D Phase Contrast MRI of Cerebral Blood FLow and Surface Anatomy," Journal of Computer Assisted Tomography, vol.
		Cline, H. Lorensen, R. Kikinis, and F. Jolesz, "Three-Dimensional Segmentation of MR Images of the Head Using Probability and Connectivity," Journal of Computer Assisted Tomography, vol.
	www.crd.ge.com /~lorensen/pubs.html (1504 words)

	Computerized Tomography, CT Scan - Computer Assisted Tomography CAT Scan - Medical Arts Radiology - Medical Imaging, ...
		A CAT (Computer Assisted Tomography) Scan is also known as a CT (computerized tomography) scan.
		The technologist will be able to see you at all time and will communicate with you via a two-way microphone.
		The exam usually takes from 10 to 30 minutes - allowing for preparation as well as time for the computer to generate the images.
	www.medicalartsradiology.com /mar-services-ctscan.htm (324 words)

	Selected Papers on Image Registration
		J.-P. Thirion and A. Gourdon, Computing the differential characteristics of isointensity surfaces, Computer
		Computer Assisted Radiology and Surgery, H. Lemke, et al.
		With Transmission and Emission Computed Tomographs, Journal of Computer Assisted Tomography, vol.
	www.imgfsr.com /ifsr_irb.html (9572 words)

	Journal of Computer Assisted Tomography (Site not responding. Last check: 2007-10-16)
		Journal of Computer Assisted Tomography A Radiological Journal Dedicated to the Basic and Clinical Aspects of Reconstructive Tomography
		Journal of Computer Assisted Tomography publishes original articles, reports, and studies that describe the latest clinical and research developments in computer-based diagnostic imaging.
		Computed Tomography and Magnetic Resonance of the Thorax, Book, Hardbound
	lww.com /store/products?0363-8715 (224 words)

	1985 #3 JACA
		The Use of Computer-Assisted Tomography of the Lumbar Spine in a Chiropractic Practice
		BRUCE F. A review of the records of 23 chiropractic patients who underwent lumbar computer-assisted tomography (CT) scans is reported.
		Aspects of the use of CT scans by chiropractors are briefly discussed.
	www.chiropractors.asn.au /cjournal/vol15/Cja85300.htm (395 words)

	UNIGOE
		In addition, many of these methods are developed for studying human bone physiology and pathophysiology.
		Importantly, the members of the Department can measure bone mineral density and fracture thresholds in laboratory animals utilising computer-assisted tomography (CT).
		A main research topic of the Department deals with the impact of steroid hormones, in particular estrogens, with special emphasis on differentiation of effects on the expression of steroid regulated genes and proteins mediated via the two receptor types, ERa, ERß and their splice variants.
	eupeah.org /Partners/UNIGOE/UNIGOE.HTM (577 words)

	Publications
		Fenster A, Drost DJ, Rutt BK: Correction of Spectral Artifacts and Determination of Electron Density and Atomic Number from Computed Tomography (CT) Scans.
		Rutt BK, Fenster A: Split-filter Computed Tomography (CT) for Routine Dual Energy Scanning.
		Proceedings of the 1st International Conference on Visualization in Biomedical Computing, Atlanta, Georgia, May 22-25, 1990.
	www.imaging.robarts.ca /~brutt/publicationscv.htm (1634 words)

	Computed Assisted Tomography (CAT Scanning) \| Community College of Allegheny County
		Students learn to produce computerized tomography images of body parts as an aid in the diagnosis of disease and injury.
		Applicants should have a successful record of achievement in an approved accredited radiologic technology program or radiation therapy technology program, be registered in radiography or radiation therapy, with the certification examination having been passed at least one year prior to sitting for the advanced level examination in computed tomography.
		Graduates of this program are eligible to take the advanced certification examination provided by the American Registry of Radiologic Technologists (ARRT) (CT) after completing all the certificate requirements.
	www.ccac.edu /default.aspx?id=138708 (165 words)

	[No title]
		Pelizarri, G. Chen, D. Spelbring, R. Weichselbaum, and C. Chen, “Accurate Three-Dimensional Registration of CT, PET and/or MR Images of the Brain,” J. of Computer Assisted Tomography, 13, January/February 1989, pp.
		Besl and N. McKay, “A method for the registration of 3-D shapes,” IEEE Transactions on Pattern Analysis and Machine Intelligence, vol.
		Studholme, D.L.G. Hill, and D.J. Hawkes, Automatic three-dimensional registration of magnetic resonance and positron emission tomography brain images by multiresolution optimization of voxel similarity measures, Med.
	www.cs.jhu.edu /~cis/cista/746/papers/listVersion2.doc (539 words)

	Modelling of multiphase flow in packed beds by computer-assisted x-ray tomography (Site not responding. Last check: 2007-10-16)
		The high resolution which can be obtained by computer-assisted x-ray tomography is used to investigate various scale heterogeneities of the flow texture characterizing multiphase flow in packed beds.
		The direct counting of `irrigated' pixels allows the determination of the number of individual liquid rivulets as well as their size.
		In particular, reselling and systematic downloading of files is prohibited.
	stacks.iop.org /0957-0233/7/436 (267 words)

	Intermag R&D Projects
		Objectives: To advance the Nuclear Magnetic Resonance Tomography Imaging for medical investigations, treatmentand surgical purposes.
		Surgical operations computer planning with the help of stereotaxic device
		Objectives: To offer the stereotaxy device support for surgical operation computer planning that allows totreat diseases by local destruction of small quantity of brain tissues.
	www.intermag.kiev.ua /projects/projects.html (125 words)

	Lymphoma Information Network - Testing: CT scan
		CT Stands for Computerized Tomography scan; once called Computer Assisted Tomography (CAT scan).
		CT produces pictures of various parts of your body by taking multiple x-ray images.
		The author is not in the medical field and does not warrant the correctness of the material on this page or the sites linked - please take online information and consult with your own medical team to make informed decisions.
	www.lymphomainfo.net /tests/ct.html (313 words)

	Find in a Library: Journal of computer assisted tomography
		Find in a Library: Journal of computer assisted tomography
		To find a library, type in a postal code, state, province, or country.
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	worldcatlibraries.org /wcpa/ow/85454bbf022fc5baa19afeb4da09e526.html (46 words)

	AIR - CTTG Journals
		"Feasibility of Planar Virtual Pathology: A New Paradigm in Volume-Rendered CT Colonography." Journal of Computer Assisted Tomography 25(6): 864-869.
		"Performance of multidetector computed tomography colonography compared with conventional colonoscopy." GUT 51: 207-211.
		"Automated Segmentation of Colonic Walls for Computerized Detection of Polyps in CT Colonography." Journal of Computer Assisted Tomography 25(4): 629-638.
	www.a-i-r.com.au /ctusers/vic/VColon.html (1198 words)

	Journal of Computer Assisted Tomography (on Ovid) (Site not responding. Last check: 2007-10-16)
		This journal title can be accessed directly from computers connected to USC's network or through a USC PPP connection.
		It may also be accessed through Ovid by individuals using a non-USC Internet Service Provider.
		On the opening screen, select "Browse Journals" from the icons at the top of the screen.
	www.usc.edu /hsc/dental/library/e_resources/info/joucomat.html (87 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-10-16)
		Energy Citations Database (ECD) Document #6455025 - Simultaneous dual-energy computer assisted tomography
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		For a journal article, please see the Resource Relation field.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6455025 (90 words)

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