DISTANCE ESTIMATION ACCURACY OF A NOVEL THREE-DIMENSIONAL ENDOLUMINAL ENDOSCOPIC SYSTEM

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  • 3D内視鏡システムによる立体感認識の正確性に関する検討

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Abstract

<p>[Aims]To evaluate the distance estimation accuracy of a novel three-dimensional (3D) endoluminal endoscopic system.</p><p>[Methods]Experienced physicians (n = 5) and less experienced physicians and nurses (n = 7) were allowed up to five attempts to accurately grasp a 70-mm long screw while standing on a table using straight grasping forceps from a distance of 30, 50, and 100mm. The success rates for the first attempt as well as all five attempts were compared between 2D and 3D endoscopic systems.</p><p>[Results]For the first attempt, using the 2D and 3D systems, the success rates were 8.3% and 50% from a distance of 30mm, 0% and 54.5% from 50mm, and 0% and 36.4% from 100mm, respectively. The success rate of grasping the screw from a 50-mm distance was significantly higher using the 3D system than using the 2D system (P<0.05). For all five attempts, using the 2D and 3D systems, the success rates were 75% and 100% from a distance of 30mm, 63.6% and 100% from 50 mm, and 45.5% and 90.9% from 100mm, respectively. The success rates were not significantly different between the systems; however, the 3D system tended to exhibit a higher success rate.</p><p>[Conclusions]The novel 3D endoluminal endoscopic system is useful for accurate distance estimation.</p>

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