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Keywords : Augmented/Enhanced reality, Hepatectomy, Hyperspectral imaging, Image-guided surgery, in vivo evaluation
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Hepatectomy using Hyperspectral Augmented Reality
Hyperspectral enhanced reality for anatomical resection
In the experimental setting, Hyperspectral imaging (HSI) was accurate in discriminating ischemic from non-ischemic hepatic areas. Hypespectral enhanced reality could be a suitable intraoperative tool to guide perfusionbased demarcation line assessment and segmentation.
Keywords : Hyperspectral Imaging, Augmented Reality, Image-guided surgery, Hepactectomy
A Hyperspectral liver pictures of the three pig models after the ligation of the left hepatic pedicle branch.B Enhanced reality provided by the superimposition of the RGB camera with the Hyperspectral Near-Infrared index obtaining HYPER of pig 1.Unclear demarcation line solved by HSI is highlighted by the white arrows
Demarcation line assessment in anatomical liver resection:
An overview (Surgical Innovation 2020)
Demarcation line after the ligation of the left hepatic pedicle branches in an open left hepatectomy in a porcine model.(A) RGB camera image, (B) near-infrared image, and (C) hyperspectral-based enhanced reality, near-infrared image superimposed onto the RGB video. Abbreviations: RGB, red/green/blue.
New technologies for demarcation assessment during liver anatomical liver resection (ALR) aim to provide more information to surgeons in order to standardize the surgical approach by means of quantification and characterization of liver perfusion. NIR imaging is an appropriate and effective tool for ALR. Augmented reality using 3D virtual images helps to visualize the virtual Demarcation Line (DL) obtained by means of preoperative imaging data set segmentation under accurate registration. HSI yields a quantifiable measurement of the liver tissue perfusion and displays a precise DL to guide the surgical dissection.
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