Diffusion Tensor Imaging Study After Intraarterial Cell Therapy in Acute Ischemic Stroke: A Substudy of the IBIS Randomized Clinical Trial | Stroke
BACKGROUND: Bone marrow mononuclear cell (BM-MNC) intraarterial transplantation has emerged as a potential stroke therapy. We aimed to determine whether BM-MNC therapy induces changes in diffusion tensor imaging metrics of major white matter tracts. METHODS: The IBIS trial was an investigator-initiated multicenter, phase IIb, randomized, controlled, assessor-blinded, clinical trial. Seventy-seven patients (aged 18–80 years) with a nonlacunar middle cerebral artery ischemic stroke within 1 to 7 days from stroke onset and a National Institutes of Health Stroke Scale score of 6 to 20 were included. The primary outcome was the modified Rankin Scale score at 6 months. Among these participants, 38 patients (20 BM-MNCs-treated and 18 controls) had diffusion tensor imaging data available at both baseline and 6-month follow-up. Fractional anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity for white matter tracts were obtained. We determined the average changes in diffusion
