%0 Journal Article %A Ben Maurice Brown %A Edward H. Stark %A Garry Dion %A Hirohisa Ono %T Computed Tomography and Chymopapain Chemonucleolysis: Preliminary Findings %D 1985 %J American Journal of Neuroradiology %P 51-54 %V 6 %N 1 %X Ten lumbar disk levels in nine patients were examined by computed tomography (CT) before and 6 weeks after chymopapain chemonucleolysis of herniated nucleus pulposus (HNP). Patient selection for chemonucleolysis was partly based on CT scans demonstrating morphologic HNP criteria favoring a successful treatment outcome. Posttreatment CT scans disclosed a measurable HNP size decrease of 1-3 mm at nine of 10 levels studied as well as an increase in HNP attenuation at many levels. CT findings correlated closely with objective clinical parameters used to assess treatment outcomes. %U https://www.ajnr.org/content/ajnr/6/1/51.full.pdf