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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1945 2
1946 3
1947 8
1948 8
1949 10
1950 49
1951 52
1952 70
1953 57
1954 75
1955 57
1956 72
1957 72
1958 43
1959 42
1960 45
1961 46
1962 87
1963 147
1964 213
1965 84
1968 2
1972 1
1975 11
1976 197
1977 937
1978 1520
1979 2031
1980 2540
1981 2972
1982 3529
1983 4110
1984 4472
1985 4857
1986 4927
1987 5268
1988 5203
1989 5655
1990 5492
1991 5638
1992 5886
1993 5740
1994 5843
1995 6212
1996 6723
1997 7286
1998 7682
1999 8087
2000 8438
2001 8375
2002 9140
2003 9815
2004 10457
2005 11331
2006 13238
2007 15251
2008 16552
2009 18390
2010 20053
2011 22104
2012 23395
2013 24296
2014 24444
2015 24816
2016 25551
2017 26491
2018 25052
2019 13097
2020 321
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421,850 results
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Page 1
X-ray-transmission computed tomography.
McCullough EC and Payne JT. Med Phys 1977 - Review. PMID 321930
The immediate goal of clinically based x-ray-transmission computed tomography (CT) is to provide a measurement of the x-ray linear attenuation coefficient in cross section with the ultimate goal of impacting on patient management and care. To do this with the accuracy needed for clinical goals requires the careful integration of x-ray physics, detector technology, and mathematical reconstruction theory. ...
The immediate goal of clinically based x-ray-transmission computed tomography (CT) is to provide a measurement o …
A Monte Carlo Model of a Benchtop X-Ray Fluorescence Computed Tomography System and Its Application to Validate a Deconvolution-Based X-Ray Fluorescence Signal Extraction Method.
Ahmed MF, et al. IEEE Trans Med Imaging 2018. PMID 29994762 Free PMC article.
In this study, we developed and validated a Geant4-based Monte Carlo (MC) model of an experimental benchtop X-ray fluorescence (XRF) computed tomography (XFCT) system for quantitative imaging of metallic nanoparticles such as gold nanoparticles (GNPs) injected into small animals for preclinical testing of various NP-based diagnostic and therapeutic approaches. ...Thus, the current MC model can be used to optimize the beam/imaging parameters (e.g., beam geometry, excitation X-ray beam energy, and X-ray filter material) as well as the design of critical hardware components (e.g., detector collimators) within the current benchtop XFCT system. ...
In this study, we developed and validated a Geant4-based Monte Carlo (MC) model of an experimental benchtop X-ray fluorescence …
Computed tomography x-ray tube life analysis: a multiyear study.
Erdi YE. Radiol Technol 2013. PMID 23861516
PURPOSE: To assess and compare actual computed tomography (CT) x-ray tube life with manufacturer warranty coverage limits because prolonging the tube life helps to lower operating costs. ...Seven Ultra CT x-ray tubes did not meet the warranty coverage limits, with an average life of 8 months and 48.1 kAs. For the Pro CT x-ray tubes, the measured logs indicated 22.4 ± 9.6 months of CT x-ray tube life. ...
PURPOSE: To assess and compare actual computed tomography (CT) x-ray tube life with manufacturer warranty covera …
Anniversary paper. Development of x-ray computed tomography: the role of medical physics and AAPM from the 1970s to present.
Pan X, et al. Med Phys 2008 - Review. PMID 18777932 Free PMC article.
The AAPM, through its members, meetings, and its flagship journal Medical Physics, has played an important role in the development and growth of x-ray tomography in the last 50 years. From a spate of early articles in the 1970s characterizing the first commercial computed tomography (CT) scanners through the "slice wars" of the 1990s and 2000s, the history of CT and related techniques such as tomosynthesis can readily be traced through the pages of Medical Physics and the annals of the AAPM and RSNA/AAPM Annual Meetings. ...
The AAPM, through its members, meetings, and its flagship journal Medical Physics, has played an important role in the development and growt …
X-ray computed tomography: an engineering synthesis of multiscientific principles.
Robb RA. Crit Rev Biomed Eng 1982 - Review. PMID 7044679
Although the decade of the 1970s has seen this new technology-called X-ray computed tomography (CT)-develop and expand into several areas of application, the foremost of these remains in medical imaging whereas phenomenal evolution in capabilities of CT scanners has occured. ...This review chronicles the relatively short history of X-ray computed tomography and attempts to put in perspective the fundamental reason for its remarkable success, namely that it derives from an ingenious engineering synthesis of several well-founded principles in the basic and applied sciences....
Although the decade of the 1970s has seen this new technology-called X-ray computed tomography (CT)-develop and …
Dose reduction technique in diagnostic X-ray computed tomography by use of 6-channel multileaf collimators.
Hashimoto F, et al. Radiol Phys Technol 2017. PMID 27394728
Recently, region-setting computed tomography (CT) has been studied as a region of interest imaging method. This technique can strongly reduce the radiation dose by limiting the irradiation field. ...As an experimental system, we developed an X-ray CT system with multileaf collimators. In this system, truncated projection data can be captured by limiting of the radiation field. ...
Recently, region-setting computed tomography (CT) has been studied as a region of interest imaging method. This technique can …
Photon-counting CT: Technical Principles and Clinical Prospects
Willemink MJ, et al. Radiology 2018 - Review. PMID 30179101
Photon-counting CT uses new energy-resolving x-ray detectors, with mechanisms that differ substantially from those of conventional energy-integrating detectors. ...
Photon-counting CT uses new energy-resolving x-ray detectors, with mechanisms that differ substantially from those of conventi …
Dual-Energy Computed Tomography: Physical Principles, Approaches to Scanning, Usage, and Implementation: Part 1.
Forghani R, et al. Neuroimaging Clin N Am 2017 - Review. PMID 28711199 Free article.
There are increasing applications of dual-energy computed tomography (CT), a type of spectral CT, in neuroradiology and head and neck imaging. ...
There are increasing applications of dual-energy computed tomography (CT), a type of spectral CT, in neuroradiology and head a …
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