The objective of this study is to test the technical feasibility of LapAR visualization system for guiding laparoscopic surgeries and to gather clinical feedback on the use of this tool.
Surgeons use real-time video generated by a laparoscope to visualize the operative field when performing laparoscopic procedures. An inability to see beneath organ surfaces is a limitation of the current visualization technology. Surgeons additionally use laparoscopic ultrasound to see beneath organ surfaces, but also need to mentally correlate the ultrasound image with the video of the operative field. This process is difficult, subjective, and variable with expertise, and discourages the use of ultrasound. We have developed a method to combine live laparoscopic video and laparoscopic ultrasound images to present fused multimodality images on a single display, eliminating the need for mental image correlation. Specifically, the image fusion method, called laparoscopic augmented reality (LapAR), augments the laparoscopic video with ultrasound data when required by surgeons. For ablations, we further track the needle and overlay its path on the AR view for precise needle placement. This study is designed to test this minimal-risk capability in patients referred for relevant laparoscopic procedures.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
11
LapAR system will map (transform) the live LUS image in the reference frame of the laparoscopic camera, and fuse it with the live laparoscopic video in real time. For thermal ablations that involve a needle, we also track the needle and overlay its path on the AR view.
Children's National Hospital
Washington D.C., District of Columbia, United States
Usability
The ease of use of the LapAR system will be evaluated by the surgeon
Time frame: post surgery, an expected average of 5 minutes
System set-up time
Time frame: before surgery, an expected average of 15 min
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