PT - JOURNAL ARTICLE AU - Ben Maurice Brown AU - Edward H. Stark AU - Garry Dion AU - Hirohisa Ono TI - Computed Tomography and Chymopapain Chemonucleolysis: Preliminary Findings DP - 1985 Jan 01 TA - American Journal of Neuroradiology PG - 51--54 VI - 6 IP - 1 4099 - http://www.ajnr.org/content/6/1/51.short 4100 - http://www.ajnr.org/content/6/1/51.full SO - Am. J. Neuroradiol.1985 Jan 01; 6 AB - 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.