Clinical Comparison of 3D Endoscopic Sinonasal Surgery Between ‘Insect Eye’ 3D and ‘Twin Lens’ 3D Endoscopes

다국어 초록 (Multilingual Abstract)

Background and Objectives: Three-dimensional (3D) imaging is gaining popularity and has been partially used in robotic surgery but not in sinonasal surgery owing to technical problems. This is not only the first pilot study to evaluate the usefulness of newly-developed ‘twin lens’ HD-3D endoscope (Machida), but also the first clinical study to compare this instrument with the pre-existing ‘insect eye’ 3D endoscope (Visionsense).
Materials and Method: A total of 45 surgeries for cerebrospinal fluid leakage, angiofibroma, or sinonasal malignancy were performed using a 3D endoscope between November 2011 and October 2013 (‘insect eye’ Visionsense VSII 3D: 29 cases, ‘twin lens’ Machida HD-3D: 16 cases).
Results: Depth perception and recognition of anatomical structures were all excellent in the two 3D methods. The ‘twin lens’ HD-3D endoscope provided better image resolution and naturalness of color and showed less unfavorable phenomena such as image blurring and blackout than the ‘insect eye’ 3D endoscope.
Conclusion: If the technical limitations are solved, the 3D endoscope will be used as a substitute and a standard tool in endoscopic sinonasal surgery rather than as supplement to the two-dimensional (2D) endoscope in the near future.

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