K-index a predictor of T2 lesions in CIS, RIS
September 14, 2023…ictor of T2 lesions than other measures such as the number of dissemination-in-space locations of T2 lesions at baseline, the presence of Gd+ lesions or OCB status. Notably, OCB positivity was not predictive of new T2 lesions in RIS. Moreover, the K-index was predictive of a clinical attack in CIS (AUC 0.75 at 12 months). The risk of a relapse in CIS patients increased by 4% with each 10-point increase in the K-index. The authors concluded that th…