Four dose groups

GroupElastase Volume (%)*Contrast Material Volume (%)†Saline Volume (%)Incubation Duration (min)
Sham0505010
Low dose25255010
Medium dose50252510
High dose50252520

  • * Porcine elastase, 5.23 units per milligram, 40.1 mg/mL, was used.

  • † Omnipaque 300 (Nycomed) was used.