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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.
Unfortunately, more than two decades after this project's start, it is readily apparent that Kernleld and Rye's assessment that, "in crucial respects he seems unqualified to be a jazz discographer.
In a detailed article nearly ten years ago, discographer Tim Brooks stressed the importance of documenting the sources of discographical information.
Bolig is a seasoned discographer of the recordings of the Italian tenor Enrico Caruso.
For this reason, discographers, collectors, and admirers of Hackett will find the book worth its high price.
The painstaking research that produced More EJS and its companion volume reflects a standard consis tent in the offerings of Greenwood Press and should serve as a model for future discographers.
While discographers have left no stones unturned in their pursuit of big band listings only peripherally connected to jazz in various mergers with popular music, a similar energy has not been applied to amplified combos, whose mergers of jazz and popular music date from the late 1960s on- wards.
It is perhaps not such a terrible thing to mangle a title, for in this area (as mentioned above) record companies have over the years done far more damage than discographers.
His preface offers little explanation of the extent to which his work is based on existing comprehensive discographies, beyond this extraordinary understatement: "And of course a deep bow to discographers who have come before: Hilton Schleman, Charles.
Greenwood, 1980), similar numbers have proved a veritable plague to subsequent discographers.
Jazz Directory established the format jazz, blues and gospel discographers would use to present their information.
And in the process of examining the scope of each discography, the essay considers how each discographer has addressed the impossible problem of identifying jazz, blues, and gospel, and distinguishing these genres from the mainstream of popular music.