Three items of CT images, US images and simulated needles are all combinedly displayed in a 3D space in real time.
With Pari-Path surgical navigation system, in the screent the left window shows an overlap of CT image and US image coincided. The right window shows a US plane in a 3D CT model, with a planned needle and a real time needle.
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Pari-path surgical navigation |
Other surgical navigation |
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Fusion method for CT & US
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1. no need surgeons to select common spots both on CT images and Ultrasound images 2. robust accuracy not associated with images of anatomic structures 3. register accuracy maybe as good as 1~2 mm typically |
1. need surgeons to select common spots both on CT images and Ultrasound images 2. accuracy not robust, heavily affected by images of anatomic structures 3. register accuracy maybe poor to ~cm |
