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[InsKid Mobile application for the reconstruction of the internal view of the collecting system].

INTRODUCTION
patients with urinary stone disease during consultation often cannot realize their condition and features of upcoming procedure. Creation of 3D printed models is also not always available or too expensive.


AIM
to create a special program that allows for virtual intrarenal visualization of the collecting system and kidney stone on devices based on the Android operating system and evaluate its efficiency in counseling patients before the upcoming percutaneous nephrolithotomy (PCNL).


MATERIALS AND METHODS
a total of 15 patients who were scheduled to PCNL, were included in the study. All of them had two consultations. During the second consultation, the newly developed program was used. Patient data from DICOM (computed tomography) format were converted to stereolithography (STL) format in order to display it in the application. Each patient assessed the quality of the consultation using a questionnaire.


RESULTS
patients understanding of the kidney anatomy improved by 55% (from 34 to 75 points, p=0.0001), and stone localization by 51% (from 37 to 75 points, p=0.0001). The stages of PCNL became clearer by 57% (from 32 points to 75, p=0.0001), and understanding of possible intra- and postoperative complications was improved by 48% (from 38 to 73 points, p=0.0002). Overall patient satisfaction with counseling improved by 53% (from 35 to 74 points, p=0.0001), and the number of patients who desired for better repeated counseling decreased by 89% (from 9 to 1, p=0.006).


CONCLUSION
The InsKid app is an affordable and easy-to-use program, which doesnt require significant costs and allows patients to understand their disease and upcoming procedure.