Sangseo Jeon

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Background: We investigated the methods of calibrating an endoscope to an optical tracking system (OTS) for high accuracy augmented reality (AR)-based surgical navigation. We compared the possible calibration methods, and suggested the best method in terms of accuracy and speed in a medical environment. Material and methods: A calibration board with an(More)
BACKGROUND The accuracy of surgical navigation depends greatly on that of registration between the patient and the medical image. Point-based registration has been the most common and reliable method, which typically uses skin markers. Unfortunately, high registration accuracy around the markers is not sustained at targets deeply seated within the body. To(More)
The conventional intervention for chronic total occlusion (CTO) of the coronary artery has crucial challenges for its successful outcome; surgeons should understand the vascular anatomy and the instrument location, solely depending on two-dimensional (2D) X-ray images. Excessive doses of both X-ray radiation and the contrast agent from continuous(More)
measuring electroencephalography (EEG) signals of the patient. High repeatability of EEG electrode placement is one of the most important prerequisites for obtaining the reliable EEG signal. Conventional methods for EEG electrode placement have relied on the 10/20 system and its expanded systems including 10/10 system, and 10/5 system. Those systems use(More)
Epiduroscopic laser neural decompression is an emerging therapeutic modality to treat lumbar spine pathologies including chronic low back pain, spinal stenosis, and disk herniation via catheter insertion followed by laser ablation of the lesion. Despite the efficacy of epiduroscopic laser neural decompression, excessive radiation doses due to fluoroscopy(More)
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