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Endoscopy 2017; 49(08): 808-812
DOI: 10.1055/s-0043-105071
Innovations and brief communications
© Georg Thieme Verlag KG Stuttgart · New York

A 3D-printed cap with sideoptics for colonoscopy: a randomized ex vivo study

Benjamin M. Walter
Interventional and Experimental Endoscopy (InExEn), Medizinische Klinik I, Universitätsklinikum Ulm, Ulm, Germany
,
Alexander Hann
,
Rena Frank
,
Alexander Meining
› Author Affiliations
Further Information

Publication History

submitted 31 October 2016

accepted after revision 13 February 2017

Publication Date:
26 April 2017 (online)

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Abstract

Background Adequate polyp detection is crucial to colonoscopy; however, detection can be impaired. In particular, flat polyps located behind folds or near the colonic flexures appear to be a problem. We present a cheap and easily adjustable 3D-printed tool to enhance the view of a standard colonoscope using additional commercially available sideoptics.

Materials and methods A cap adjustable to a standard endoscope was printed by a 3 D printer and had two microcameras fixed to offer two additional views. Fourteen endoscopists performed one standard and one sideoptic-enhanced colonoscopy in a randomized order. Flat lesions were simulated in an endoscopy training model. Time for withdrawal was measured, along with the number of flat lesions detected.

Results Withdrawal time did not differ significantly between standard and sideoptic-enhanced colonoscopy (329 vs. 389 seconds). The median number of detected flat lesions per endoscopic examination was significantly higher using the sideoptic tool (8 vs. 6.5; P = 0.001).

Conclusions A 3D-printed sideoptic-enhanced cap including two microcameras may be a cheap, easy, and feasible add-on to improve adenoma detection rates in routine colonoscopy.

 

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