The unseen hands: Elevating neurointerventional education through operator hand visualization

In neurointervention, fluoroscopic images dominate the educational narrative, highlighting device navigation and deployment but neglecting the manual expertise that enables them. The physician's hands, which execute precise torques, tensions, and micro-movements, remain unseen and underappreciated, leaving a critical gap in procedural education. This editorial argues for systematic recording of operator hand movements during neurointerventional procedures and for aligning these recordings with fluoroscopic feeds to create a dual-visual educational resource. Such integration could enhance procedural understanding, improve trainee skill acquisition through direct visual mimicry, and foster more effective case debriefings. We discuss technological feasibility, cost, privacy concerns, and the potential of this approach to standardize and elevate neurointerventional education worldwide. By widening the lens beyond the screen, we can preserve and transmit the tacit manual knowledge that defines procedural mastery.