Abstract
A wearable surgical navigation system is developed for intraoperative imaging of surgical margin in cancer resection surgery. The system consists of an excitation light source, a monochromatic CCD camera, a host computer, and a wearable headset unit in either of the following two modes: head-mounted display (HMD) and Google glass. In the HMD mode, a CMOS camera is installed on a personal cinema system to capture the surgical scene in real-time and transmit the image to the host computer through a USB port. In the Google glass mode, a wireless connection is established between the glass and the host computer for image acquisition and data transport tasks. A software program is written in Python to call OpenCV functions for image calibration, co-registration, fusion, and display with augmented reality. The imaging performance of the surgical navigation system is characterized in a tumor simulating phantom. Image-guided surgical resection is demonstrated in an ex vivo tissue model. Surgical margins identified by the wearable navigation system are co-incident with those acquired by a standard small animal imaging system, indicating the technical feasibility for intraoperative surgical margin detection. The proposed surgical navigation system combines the sensitivity and specificity of a fluorescence imaging system and the mobility of a wearable goggle. It can be potentially used by a surgeon to identify the residual tumor foci and reduce the risk of recurrent diseases without interfering with the regular resection procedure.
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Acknowledgments
This project was partially supported by National Cancer Institute (R21CA15977) and the Fundamental Research Funds for the Central Universities. The authors are grateful to Ms. Chuangsheng Yin at University of Science and Technology of China for helping the manuscript preparation and Drs. Edward Martin, Stephen Povoski, Michael Tweedle, and Alper Yilmaz at The Ohio State University for their technical and clinical helps and suggestions.
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Associate Editor Tingrui Pan oversaw the review of this article.
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Shao, P., Ding, H., Wang, J. et al. Designing a Wearable Navigation System for Image-Guided Cancer Resection Surgery. Ann Biomed Eng 42, 2228–2237 (2014). https://doi.org/10.1007/s10439-014-1062-0
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DOI: https://doi.org/10.1007/s10439-014-1062-0