RT Journal Article SR Electronic T1 Reduction of intratumoral brain perfusion by noninvasive transcranial electrical stimulation JF Science Advances JO Sci Adv FD American Association for the Advancement of Science SP eaau9309 DO 10.1126/sciadv.aau9309 VO 5 IS 8 A1 Sprugnoli, G. A1 Monti, L. A1 Lippa, L. A1 Neri, F. A1 Mencarelli, L. A1 Ruffini, G. A1 Salvador, R. A1 Oliveri, G. A1 Batani, B. A1 Momi, D. A1 Cerase, A. A1 Pascual-Leone, A. A1 Rossi, A. A1 Rossi, S. A1 Santarnecchi, E. YR 2019 UL http://advances.sciencemag.org/content/5/8/eaau9309.abstract AB Malignant brain neoplasms have a poor prognosis despite aggressive treatments. Animal models and evidence from human bodily tumors reveal that sustained reduction in tumor perfusion via electrical stimulation promotes tumor necrosis, therefore possibly representing a therapeutic option for patients with brain tumors. Here, we demonstrate that transcranial electrical stimulation (tES) allows to safely and noninvasively reduce intratumoral perfusion in humans. Selected patients with glioblastoma or metastasis underwent tES, while perfusion was assessed using magnetic resonance imaging. Multichannel tES was applied according to personalized biophysical modeling, to maximize the induced electrical field over the solid tumor mass. All patients completed the study and tolerated the procedure without adverse effects, with tES selectively reducing the perfusion of the solid tumor. Results potentially open the door to noninvasive therapeutic interventions in brain tumors based on stand-alone tES or its combination with other available therapies.