objective: we sought to determine the usefulness of the 99mtc-mibi (mibi) washout rate for the evaluation of steroid therapy in cardiac sarcoidosis (cs). methods: eleven cs patients underwent mibi myocardial spect both before and 6 months after initiating steroid therapy. the washout rate (wor) of mibi was calculated using early and delayed polar map images. the washout score (wos) of mibi was ...