Duk Nyeon Kim1, You Seong Chae1, Min Young Kim2,3,4. 1. School of Electrical Engineering and Computer Science, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, Korea. 2. School of Electrical Engineering and Computer Science, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, Korea. mykim@ee.knu.ac.kr. 3. Research Center for Neurosurgical Robotic System, Kyungpook National University, Daegu, 41566, Korea. mykim@ee.knu.ac.kr. 4. Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, 21205, USA. mykim@ee.knu.ac.kr.
Abstract
PURPOSE: In neurosurgery, an image-guided operation is performed to confirm that the surgical instruments reach the exact lesion position. Among the multiple imaging modalities, an X-ray fluoroscope mounted on C- or O-arm is widely used for monitoring the position of surgical instruments and the target position of the patient. However, frequently used fluoroscopy can result in relatively high radiation doses, particularly for complex interventional procedures. The proposed system can reduce radiation exposure and provide the accurate three-dimensional (3D) position information of surgical instruments and the target position. METHODS: X-ray and optical stereo vision systems have been proposed for the C- or O-arm. Two subsystems have same optical axis and are calibrated simultaneously. This provides easy augmentation of the camera image and the X-ray image. Further, the 3D measurement of both systems can be defined in a common coordinate space. RESULTS: The proposed dual stereoscopic imaging system is designed and implemented for mounting on an O-arm. The calibration error of the 3D coordinates of the optical stereo and X-ray stereo is within 0.1 mm in terms of the mean and the standard deviation. Further, image augmentation with the camera image and the X-ray image using an artificial skull phantom is achieved. CONCLUSION: As the developed dual stereoscopic imaging system provides 3D coordinates of the point of interest in both optical images and fluoroscopic images, it can be used by surgeons to confirm the position of surgical instruments in a 3D space with minimum radiation exposure and to verify whether the instruments reach the surgical target observed in fluoroscopic images.
PURPOSE: In neurosurgery, an image-guided operation is performed to confirm that the surgical instruments reach the exact lesion position. Among the multiple imaging modalities, an X-ray fluoroscope mounted on C- or O-arm is widely used for monitoring the position of surgical instruments and the target position of the patient. However, frequently used fluoroscopy can result in relatively high radiation doses, particularly for complex interventional procedures. The proposed system can reduce radiation exposure and provide the accurate three-dimensional (3D) position information of surgical instruments and the target position. METHODS: X-ray and optical stereo vision systems have been proposed for the C- or O-arm. Two subsystems have same optical axis and are calibrated simultaneously. This provides easy augmentation of the camera image and the X-ray image. Further, the 3D measurement of both systems can be defined in a common coordinate space. RESULTS: The proposed dual stereoscopic imaging system is designed and implemented for mounting on an O-arm. The calibration error of the 3D coordinates of the optical stereo and X-ray stereo is within 0.1 mm in terms of the mean and the standard deviation. Further, image augmentation with the camera image and the X-ray image using an artificial skull phantom is achieved. CONCLUSION: As the developed dual stereoscopic imaging system provides 3D coordinates of the point of interest in both optical images and fluoroscopic images, it can be used by surgeons to confirm the position of surgical instruments in a 3D space with minimum radiation exposure and to verify whether the instruments reach the surgical target observed in fluoroscopic images.
Authors: David D Cox; Alexander M Papanastassiou; Daniel Oreper; Benjamin B Andken; James J Dicarlo Journal: J Neurophysiol Date: 2008-09-24 Impact factor: 2.714
Authors: Carsten Kohlmeier; Peter Behrens; Andreas Böger; Brinda Ramachandran; Anthony Caparso; Dirk Schulze; Philipp Stude; Max Heiland; Alexandre T Assaf Journal: Int J Comput Assist Radiol Surg Date: 2017-01-12 Impact factor: 2.924