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Qualitative head-to-head comparison of headlamp and microscope for visualizing 5-ALA fluorescence during resection of glioblastoma

Fraser Henderson Jr., Evgenii Belykh, Alexander D. Ramos, and Theodore H. Schwartz

were recorded using an iPhone 12 Pro camera [Apple Inc.] paired with a smartphone filter adapter [Designs for Vision]. Microscope images were acquired using the built-in system [Zeiss KINEVO]. 4:47 Comparison of Microscope and Headlamp. Theater lights were turned down during fluorescence visualization. Microscope images were recorded directly through the microscope. The conventional microscope (Zeiss KINEVO) was activated into BLUE400 fluorescence mode for PpIX visualization. As demonstrated in the video, the PpIX fluorescence provided by the headlamp is