Illumination matters part I: comparative analysis of light sources and illumination in flexible ureteroscopy-fundamental findings from a PEARLS analysis

Purpose Illumination characteristics of flexible ureteroscopes have been evaluated in air, but not in saline, the native operative medium for endourology. The aim was to evaluate light properties of contemporary ureteroscopes in air versus saline, light distribution analysis, and color temperature....

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Published in:World journal of urology 2024-05, Vol.42 (1), p.355-355, Article 355
Main Authors: Kwok, Jia-Lun, De Coninck, Vincent, Corrales, Mariela, Sierra, Alba, Panthier, Frédéric, Ventimiglia, Eugenio, Gauhar, Vineet, Schmid, Florian Alexander, Hunziker, Manuela, Poyet, Cédric, Eberli, Daniel, Traxer, Olivier, Keller, Etienne Xavier
Format: Article
Language:English
Subjects:
Air temperature
Brightness
Color
Comparative analysis
Equipment Design
Humans
Illumination
Light
Light sources
Lighting
Medicine
Medicine & Public Health
Nephrology
Oncology
Original
Original Article
Saline Solution
Ureteroscopes
Ureteroscopy
Urology
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Summary:Purpose Illumination characteristics of flexible ureteroscopes have been evaluated in air, but not in saline, the native operative medium for endourology. The aim was to evaluate light properties of contemporary ureteroscopes in air versus saline, light distribution analysis, and color temperature. Methods We evaluated the Storz Flex-Xc and Flex-X2s, Olympus V3 and P7, Pusen 7.5F and 9.2F, and OTU WiScope using a 3D printed black target board in-vitro model submerged in saline. A spectrometer was used for lux and color temperature measurements at different opening locations. Results Illuminance was higher in saline compared to air (5679 vs. 5205 lx with Flex-Xc, p = 0.02). Illuminance in saline differed between ureteroscopes (ANOVA p 
ISSN:1433-8726
0724-4983
1433-8726
DOI:10.1007/s00345-024-05037-7