The history of X-ray computed tomography dates back to at least 1917 with the mathematical theory of the Radon transform[1][2] In the early 1900s an Italian radiologist named Alessandro Vallebona invented tomography (named "stratigrafia") which used radiographic film to see a single slice of the body.[3][4][5][6][7][8][9][10][11]
It was not widely used until the 1930s, when Dr Bernard George Ziedses des Plantes developed a practical method for implementing the technique.[12]
In October 1963, William H. Oldendorf received a U.S. patent for a "radiant energy apparatus for investigating selected areas of interior objects obscured by dense material".[13] The first clinical CT scan was performed in 1971 using a scanner invented by Sir Godfrey Hounsfield.[14]
^Radon J (1917). "Uber die Bestimmung von Funktionen durch ihre Integralwerte Langs Gewisser Mannigfaltigkeiten" [On the determination of functions from their integrals along certain manifolds]. Ber. Saechsische Akad. Wiss. 29: 262.
^Radon J (1 December 1986). "On the determination of functions from their integral values along certain manifolds". IEEE Transactions on Medical Imaging. 5 (4): 170–176. doi:10.1109/TMI.1986.4307775. PMID 18244009. S2CID 26553287.
^"Half A Century In CT: How Computed Tomography Has Evolved". The International Society for Computed Tomography (ISCT). 2016-10-07. Retrieved 2023-11-24.
^"Dr. Alessandro Vallebona - The Evolution of Medical Imaging Technology". 2019-02-15. Retrieved 2023-11-24.
^"VALLEBONA, Alessandro - Treccani". Treccani (in Italian). Retrieved 2023-11-24.
^Buzzi, A. E.; Suárez, M. V. (2013-01-01). "Tomografía lineal: nacimiento, gloria y ocaso de un método". Revista Argentina de Radiología. 77 (3): 236–244. doi:10.7811/rarv77n3a10. ISSN 0048-7619.
^Vallebona, A. (1948). "[First research on a new radiographic method; axial stratigraphy with radiation perpendicular to the axis]". Annali Di Radiologia Diagnostica. 20 (I–II): 57–64. ISSN 0003-4673. PMID 18861462.
^Vallebona, A. (November 1947). "[Old and new stratigraphic methods]". La Radiologia Medica. 33 (11): 601. ISSN 0033-8362. PMID 18933293.
^Vallebona A. Una modalità di tecnica per la dissociazione radiografica delle ombre applicata allo studio del cranio Comunicazione al IX Congresso Italiano di Radiologia, Turin, May 1930
^"Alessandro Papa tsrm, Ospedale Maggiore della Carità di Novara, Dipartimento di Radiologia Diagnostica ed Interventistica". alessandropapa.altervista.org. Retrieved 2023-11-24.
^Franco Bistolfi, Alessandro Vallebona 1899-1987. Ricordo di un grande radiologo e del suo contributo allo sviluppo delle scienze radiologiche (PDF), in Fisica in Medicina, n. 2, 2005, pp. 115-123. URL consulted on 9 may 2016 (archived from original url on 4 march 2016) https://web.archive.org/web/20160304211917/http://www.fisicamedica.it/aifm/periodico/2005/2005_2_Fisica_in_Medicina.pdf
^Valk, J. (June 1994). "Bernard George Ziedses des Plantes, MD 1902-1993". radiology: 876.
^Oldendorf WH (1978). "The quest for an image of brain: a brief historical and technical review of brain imaging techniques". Neurology. 28 (6): 517–33. doi:10.1212/wnl.28.6.517. PMID 306588. S2CID 42007208.
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