PMID- 34633475 OWN - NLM STAT- MEDLINE DCOM- 20220215 LR - 20220224 IS - 1433-0458 (Electronic) IS - 0017-6192 (Print) IS - 0017-6192 (Linking) VI - 70 IP - Suppl 1 DP - 2022 Feb TI - Endoscopic measurement of nasal septum perforations. PG - 1-7 LID - 10.1007/s00106-021-01102-4 [doi] AB - BACKGROUND: Nasal septum perforations (NSP) have many uncomfortable symptoms for the patient and a highly negative impact on quality of life. NSPs are closed using patient-specific implants or surgery. Implants are created either under anesthesia using silicone impressions or using 3D models from CT data. Disadvantages for patient safety are the increased risk of morbidity or radiation exposure. MATERIALS AND METHODS: In the context of otorhinolaryngologic surgery, we present a gentle approach to treating NSP with a new image-based, contactless, and radiation-free measurement method using a 3D endoscope. The method relies on image information only and makes use of real-time capable computer vision algorithms to compute 3D information. This endoscopic method can be repeated as often as desired in the clinical course and has already proven its accuracy and robustness for robotic-assisted surgery (RAS) and surgical microscopy. We expand our method for nasal surgery, as there are additional spatial and stereoperspective challenges. RESULTS: After measuring 3 relevant parameters (NSP extension: axial, coronal, and NSP circumference) of 6 patients and comparing the results of 2 stereoendoscopes with CT data, it was shown that the image-based measurements can achieve comparable accuracies to CT data. One patient could be only partially evaluated because the NSP was larger than the endoscopic field of view. CONCLUSION: Based on the very good measurements, we outline a therapeutic procedure which should enable the production of patient-specific NSP implants based on endoscopic data only. CI - (c) 2021. The Author(s). FAU - Rosenthal, Jean-Claude AU - Rosenthal JC AD - Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany. jean-claude.rosenthal@hhi.fraunhofer.de. AD - , Berlin, Germany. jean-claude.rosenthal@hhi.fraunhofer.de. FAU - Wisotzky, Eric L AU - Wisotzky EL AD - Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany. AD - Visual Computing, Humboldt Universitat zu Berlin, Berlin, Germany. FAU - Matuschek, Carsten AU - Matuschek C AD - MKG-Klinik, Charite - Universitatsmedizin Berlin, Berlin, Germany. FAU - Hobl, Melanie AU - Hobl M AD - HNO-Klinik, Charite - Universitatsmedizin Berlin, Berlin, Germany. FAU - Hilsmann, Anna AU - Hilsmann A AD - Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany. FAU - Eisert, Peter AU - Eisert P AD - Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany. AD - Visual Computing, Humboldt Universitat zu Berlin, Berlin, Germany. FAU - Uecker, Florian C AU - Uecker FC AD - HNO-Klinik, Charite - Universitatsmedizin Berlin, Berlin, Germany. LA - eng PT - Journal Article TT - Endoskopische Vermessung von Nasenscheidewandperforationen. DEP - 20211011 PL - Germany TA - HNO JT - HNO JID - 2985099R SB - IM MH - Endoscopy MH - Humans MH - *Nasal Septal Perforation/diagnostic imaging/surgery MH - Nasal Septum/diagnostic imaging/surgery MH - Quality of Life MH - *Robotic Surgical Procedures PMC - PMC8837565 OTO - NOTNLM OT - 3D reconstruction OT - Endoscopy OT - Image-guided therapy OT - Nose diseases OT - Reconstructive surgical procedures COIS- J.‑C. Rosenthal declares the following conflict of interest: Research funding by the Federal Ministry of Education and Research, Scholly Fiberoptic GmbH: Provision of a 3D endoscope. E.L. Wisotzky declares the following conflict of interest: Research funding by the Federal Ministry of Education and Research, ImFusion GmbH: Provision of the software "ImFusion Suite". M. Hobl, A. Hilsmann, P. Eisert and F.C. Uecker declare the following conflict of interest: Research funding by the Federal Ministry of Education and Research. C. Matuschek states that there is no conflict of interest. EDAT- 2021/10/12 06:00 MHDA- 2022/02/16 06:00 PMCR- 2021/10/11 CRDT- 2021/10/11 12:26 PHST- 2021/07/23 00:00 [accepted] PHST- 2021/10/12 06:00 [pubmed] PHST- 2022/02/16 06:00 [medline] PHST- 2021/10/11 12:26 [entrez] PHST- 2021/10/11 00:00 [pmc-release] AID - 10.1007/s00106-021-01102-4 [pii] AID - 1102 [pii] AID - 10.1007/s00106-021-01102-4 [doi] PST - ppublish SO - HNO. 2022 Feb;70(Suppl 1):1-7. doi: 10.1007/s00106-021-01102-4. Epub 2021 Oct 11.