TY - JOUR T1 - Computed Tomography and Chymopapain Chemonucleolysis: Preliminary Findings JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 51 LP - 54 VL - 6 IS - 1 AU - Ben Maurice Brown AU - Edward H. Stark AU - Garry Dion AU - Hirohisa Ono Y1 - 1985/01/01 UR - http://www.ajnr.org/content/6/1/51.abstract N2 - 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. ER -