Pneumatically Driven Finger Movement: A Novel Passive Functional MR Imaging Technique for Presurgical Motor and Sensory Mapping

Activation maps of pneumatically driven left-index-finger movement (A) and volitional left-index-finger movement (B) from a representative healthy control subject; and pneumatically driven sequential right-finger movement (C) from a representative patient with recurrent low-grade glioma and preoperative weakness in the right hand and leg. Tasks display similar activation of S1 (yellow arrows), M1 (blue arrows), and SMA (green arrows). Figures are shown in radiologic convention.