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radiography of the vertebral column after injection of radiopaque material into an intervertebral disk.


Historically, radiographic demonstration of intervertebral disk by injection of contrast media into the nucleus pulposus.
[disco- + G. graphō, to write]


, discography (dis-kog′ră-fē) [ disk + -graphy]
Use of a contrast medium injected into an intervertebral disk so that it can be examined radiographically.


Diskography may increase the risk of disk degeneration and herniation.
References in periodicals archive ?
The traditional discographer found the date of a recording session to be of more value than its release or issue date.
In a detailed article nearly ten years ago, discographer Tim Brooks stressed the importance of documenting the sources of discographical information.
Raben's reputation as a meticulous, authoritative, and definitive discographer has scholars eagerly awaiting each installment, which have been very slow in coming.
Early Caruso discographers, including Favia-Artsay and Bolig in his 1973 book, dated the Zonophone discs and Anglo-Italian Commerce Company cylinders to 1901.
Even veteran discographers need to be reminded that Milt Gabler (Commodore records) had a habit of assigning matrix numbers based on his first and second preferences rather than on chronological sequence.
Each man's effort was begun not in a vacuum, but with the data collected by previous discographers back to Delaunay.
This book is not to be missed by readers of American popular music for its informed narrative and thorough documentation, and it should be studied by all discographers for the kinds of details it includes.
Furthermore, the discographers refer to recordings that fall outside the established parameters, "i.e., black, Irish, post 1942, and field recordings" (p.
Rainer Lotz is the rugged individualist of discographers. A mechanical engineer, economist, and political scientist, he compiles discographies as a hobby.
Unlike most discographers, the authors offer sometimes exhaustive com mentary on the recordings, particularly on the technical and documentation problems for which Smith was notorious.
The 28 May 1930 session date assigned by the discographers is too specific and perhaps too early.
This is a highly sensible approach and one that other discographers should consider, particularly since even modest personal computer database programs allow generation of reports in a variety of formats.