C11936: Photoacoustic Tracking and Registration in Interventional UltrasoundNovelty:
Surgical navigational methodology which uses photoacoustic (PA) imaging to perform real-time registration between ultrasound and video image spaces
Value Proposition:
This invention provides several advantages in comparison to conventional technologies used in computer integrated surgical navigation as follows:
• Superior in comparison to conventional ultrasound-to-video registration devices which requires external tracking.
• Ability of PA methodology to fuse preoperative images such as CT or MRI with intraoperative ultrasound and video which renders higher accuracy during surgical procedures.
• Visualization and tracking of small tools such as tips of probes in RF ablation devices.
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• Enhanced safety features for using PA imaging methods in laparoscopic surgery by preventing leakage of laser light out of the patient’s body.
• Low invasiveness and enhanced maintenance of sterility of the surgical tools.
Technical Details:
Johns Hopkins researchers have developed a method which combines photoacoustic tracking with in Interventional Ultrasound (IOUS). This serves as a novel method for registration of the surgical navigation system to video cameras. Through photoacoustic registration (PA), the ultrasonic emission from laser-irradiated tissues is converted into stereo camera (SC) images which in turn aid in surgical navigation. This invention addresses safety issues regarding the use of PA based tracking for laparoscopic surgeries by incorporation of a modulated light signal to the optical paths used to deliver laser energy and by adding detectors to detect scattered light that may leak outside the patient’s body. Moreover the method of image-to-image registration is more direct and therefore reduces the chances of extraneous errors.
Looking for Partners:
To develop & commercialize the technology as a real-time tracking device for integration of surgical navigational systems.
Stage of Development:
Pre-Clinical
Data Availability:
Under CDA / NDA
Publications/Associated Cases:
SPIE Vol. 8316
