Vision of the future: initial experience with intraoperative real-time high-resolution dynamic infrared imaging. Technical note.

摘要: High-resolution dynamic infrared (DIR) imaging provides intraoperative real-time physiological, anatomical, and pathological information; however, DIR has rarely been used in neurosurgical patients. The authors report on their initial experience with 30 such A novel, long-wave (8-10 microm), narrow-band, focal-plane-array photodetector was incorporated into a camera system temperature resolution of 0.006 degrees C, providing 65,000 pixels/frame at data acquisition rate 200 frames/second. Intraoperative patients performed before after surgery. Infrared were subsequently analyzed by examining absolute differences cortical temperatures, changes over time, intensities varying physiological frequencies. Dynamic applied variety cases. After resection an arteriovenous malformation, there postoperative hyperperfusion the surrounding brain parenchyma, which consistent loss autoregulation. Bypass patency increased perfusion adjacent documented during two three extracranial-intracranial bypasses. In seven nine epilepsy results corresponded to seizure foci that had electrocorticographically mapped preoperatively. demonstrated functional cortex four undergoing awake stimulation. Finally, exhibited distinct thermal footprints 14 16 tumors. may prove be powerful adjunctive diagnostic tool armamentarium. Real-time assessment cerebral vessel are most direct applications this technology. Uses modality localization epileptic foci, identification craniotomy, determination tumor border shift avenues inquiry require further investigation.