tomographyn.

Brit.

/təˈmɒɡrəfi/,

/tɒˈmɒɡrəfi/, U.S.

/toʊˈmɑɡrəfi/,

/təˈmɑɡrəfi/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek τόμος , -graphy comb. form.

Etymology: < ancient Greek τόμος slice, section (see tome n.) + -graphy comb. form.

Originally: a process used to produce an image of the internal structure of a planar section of something in which an X-ray emitter and detector pivot about the object in such a way that everything lying outside of a particular plane appears blurred and indistinct (now also called focal plane tomography). In later use more generally: any of various processes used to produce a cross-sectional image of something by detecting the passage of electromagnetic waves, electrons, etc., occurring in a particular plane from different angles; (also) a process used to provide a three-dimensional image of the internal structure of something by combining such images.Frequently with distinguishing word or phrase in later use. computerized axial tomography, positron emission tomography, etc.: see the first element.Tomography was originally developed and is mainly used as a diagnostic tool in medicine.

ΘΚΠ

the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > specific techniques

fluorography1896

fluoroscopy1896

Roentgenism1898

roentgenoscopy1903

skiascopy1908

teleradiography1908

teleroentgenography1908

orthoroentgenography1911

pneumography1921

stereofluoroscopy1928

kymography1930

tomography1935

photofluorography1941

neutron radiography1948

pantomography1952

photofluoroscopy1955

orthopantomography1959

panography1961

stereoradiography1965

computerized axial tomography1973

computed tomography1974

computerized tomography1974

CT1974

positron emission tomography1976

PET1979

1935 Brit. Jrnl. Radiol. 8 750 The most significant field of application for the method of reproducing body layers (tomography) will, in practice, be lung diagnosis.

1949 Brit. Jrnl. Radiol. 22 627/1 Today, sectional röntgenography, commonly called tomography has indeed, in many places, found recognition as a method of radiological diagnosis.

1979 Proc. IEEE 67 567/2 The main disadvantage of focal-plane tomography is the presence of blurred image elements from the unwanted object planes.

1989 Nature 9 Nov. 172/1 Seismic tomography of Jasper Seamount suggests that smaller oceanic volcanoes may have a smaller proportion of intrusive material than large oceanic islands.

1997 Pharos-Tribune (Logansport, Indiana) 26 Oct. (Healthfile section) 2/1 A new radiography and tomography unit has just been installed in the Medical Imaging Department at Memorial Hospital.

2011 V. Kozlovskaya et al. in P. Ducheyne et al. Comprehensive Biomaterials I. 417/2 Transmission electron tomography is a rather exotic technique for studying bone.

This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).

单词	tomography
释义	tomographyn. Brit. /təˈmɒɡrəfi/, /tɒˈmɒɡrəfi/, U.S. /toʊˈmɑɡrəfi/, /təˈmɑɡrəfi/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek τόμος , -graphy comb. form. Etymology: < ancient Greek τόμος slice, section (see tome n.) + -graphy comb. form. Originally: a process used to produce an image of the internal structure of a planar section of something in which an X-ray emitter and detector pivot about the object in such a way that everything lying outside of a particular plane appears blurred and indistinct (now also called focal plane tomography). In later use more generally: any of various processes used to produce a cross-sectional image of something by detecting the passage of electromagnetic waves, electrons, etc., occurring in a particular plane from different angles; (also) a process used to provide a three-dimensional image of the internal structure of something by combining such images.Frequently with distinguishing word or phrase in later use. computerized axial tomography, positron emission tomography, etc.: see the first element.Tomography was originally developed and is mainly used as a diagnostic tool in medicine. ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > specific techniques fluorography1896 fluoroscopy1896 Roentgenism1898 roentgenoscopy1903 skiascopy1908 teleradiography1908 teleroentgenography1908 orthoroentgenography1911 pneumography1921 stereofluoroscopy1928 kymography1930 tomography1935 photofluorography1941 neutron radiography1948 pantomography1952 photofluoroscopy1955 orthopantomography1959 panography1961 stereoradiography1965 computerized axial tomography1973 computed tomography1974 computerized tomography1974 CT1974 positron emission tomography1976 PET1979 1935 Brit. Jrnl. Radiol. 8 750 The most significant field of application for the method of reproducing body layers (tomography) will, in practice, be lung diagnosis. 1949 Brit. Jrnl. Radiol. 22 627/1 Today, sectional röntgenography, commonly called tomography has indeed, in many places, found recognition as a method of radiological diagnosis. 1979 Proc. IEEE 67 567/2 The main disadvantage of focal-plane tomography is the presence of blurred image elements from the unwanted object planes. 1989 Nature 9 Nov. 172/1 Seismic tomography of Jasper Seamount suggests that smaller oceanic volcanoes may have a smaller proportion of intrusive material than large oceanic islands. 1997 Pharos-Tribune (Logansport, Indiana) 26 Oct. (Healthfile section) 2/1 A new radiography and tomography unit has just been installed in the Medical Imaging Department at Memorial Hospital. 2011 V. Kozlovskaya et al. in P. Ducheyne et al. Comprehensive Biomaterials I. 417/2 Transmission electron tomography is a rather exotic technique for studying bone. This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022). < n.1935
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