Laparoscopy with augmented reality adaptations.

Area of Science:

• Medical Technology
• Human-Computer Interaction
• Surgical Innovation

Background:

• Minimally invasive laparoscopic surgery often causes surgeon discomfort and fatigue due to unnatural neck postures required to view external video displays.
• Prolonged surgical procedures exacerbate ergonomic issues, leading to reduced surgeon performance and potential errors.

Purpose of the Study:

• To address ergonomic challenges in laparoscopic surgery using Optical See-Through Augmented Reality (AR).
• To design and implement a multimodal AR interface that enhances surgeon comfort, improves workflow, and facilitates communication during laparoscopic procedures.

Main Methods:

• Conducted user and task analysis by observing surgeons in their operating room environment.
• Analyzed video recordings of laparoscopic surgeries to identify constraints and design requirements.
• Developed and evaluated a multimodal AR interface prototype using qualitative methods (think-aloud protocol) and quantitative measures (System Usability Scale, NASA Task Load Index).

Main Results:

• The AR interface allows surgeons to maintain the laparoscopic video feed within their primary viewing area, regardless of neck posture.
• Surgeons reported improved comfort, reduced neck strain, and enhanced hand-eye coordination.
• The prototype facilitated better surgeon-to-surgeon communication through a head-pose-based pointing reticle and allowed seamless access to patient imaging data.

Conclusions:

• The developed multimodal AR interface significantly improves the ergonomic conditions for surgeons performing laparoscopic procedures.
• This AR approach offers a promising solution to mitigate fatigue and enhance efficiency in minimally invasive surgery.
• The findings suggest a potential for AR to revolutionize surgical practices by integrating visual data directly into the surgeon's field of view.