1
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Oleszkiewicz A, Pettke K, Olze H, Uecker FC, Hummel T. Effects of odors on posture. J SENS STUD 2022. [DOI: 10.1111/joss.12796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna Oleszkiewicz
- Smell and Taste Clinic, Department of Otorhinolaryngology TU Dresden Dresden Germany
- Institute of Psychology University of Wroclaw Wroclaw
| | - Karolina Pettke
- Department of Otorhinolaryngology, Head and Neck Surgery Charité‐Universitätsmedizin Berlin Berlin Germany
| | - Heidi Olze
- Department of Otorhinolaryngology, Head and Neck Surgery Charité‐Universitätsmedizin Berlin Berlin Germany
| | - Florian C. Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery Charité‐Universitätsmedizin Berlin Berlin Germany
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology TU Dresden Dresden Germany
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2
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Rosenthal JC, Wisotzky EL, Matuschek C, Hobl M, Hilsmann A, Eisert P, Uecker FC. Endoscopic measurement of nasal septum perforations. HNO 2021; 70:1-7. [PMID: 34633475 PMCID: PMC8837565 DOI: 10.1007/s00106-021-01102-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2021] [Indexed: 11/25/2022]
Abstract
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.
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Affiliation(s)
- Jean-Claude Rosenthal
- Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany. .,, Berlin, Germany.
| | - Eric L Wisotzky
- Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany.,Visual Computing, Humboldt Universität zu Berlin, Berlin, Germany
| | | | - Melanie Hobl
- HNO-Klinik, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Hilsmann
- Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany
| | - Peter Eisert
- Vision and Imaging Technologies, Fraunhofer Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587, Berlin, Germany.,Visual Computing, Humboldt Universität zu Berlin, Berlin, Germany
| | - Florian C Uecker
- HNO-Klinik, Charité - Universitätsmedizin Berlin, Berlin, Germany
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3
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Rosenthal JC, Schneider A, Wisotzky EL, Meij S, Dobbelsteen JVD, Arens P, Uecker FC. A remote and immersive setup for pandemic-safe surgical education. Current Directions in Biomedical Engineering 2021. [DOI: 10.1515/cdbme-2021-2116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Existing challenges in surgical education (See one, do one, teach one) as well as the Covid-19 pandemic make it necessary to develop new ways for surgical training. This is also crucial for the dissemination of new technological developments. As today’s live transmissions of surgeries to remote locations always come with high information loss, e.g. stereoscopic depth perception, and limited communication channels. This work describes the implementation of a scalable remote solution for surgical training, called TeleSTAR (Telepresence for Surgical Assistance and Training using Augmented Reality), using immersive, interactive and augmented reality elements with a bi-lateral audio pipeline to foster direct communication. The system uses a full digital surgical microscope with a modular software-based AR interface, which consists of an interactive annotation mode to mark anatomical landmarks using an integrated touch panel as well as an intraoperative image-based stereo-spectral algorithm unit to measure anatomical details and highlight tissue characteristics.We broadcasted three cochlea implant surgeries in the context of otorhinolaryngology. The intervention scaled to five different remote locations in Germany and the Netherlands with lowlatency. In total, more than 150 persons could be reached and included an evaluation of a participant’s questionnaire indicating that annotated AR-based 3D live transmissions add an extra level of surgical transparency and improve the learning outcome.
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Affiliation(s)
| | | | - Eric L. Wisotzky
- Fraunhofer HHI, Vision and Imaging Technologies, Berlin , Germany
| | - Senna Meij
- Delft University of Technology, Faculty of Mechanical Engineering, BioMechanical Engineering, Delft , The Netherlands
| | - John van den Dobbelsteen
- Delft University of Technology, Faculty of Mechanical Engineering, BioMechanical Engineering, Delft , The Netherlands
| | - Philipp Arens
- Charite – Universitatsmedizin Berlin, Department of Otorhinolaryngology, Berlin , Germany
| | - Florian C. Uecker
- Charite - Universitatsmedizin Berlin, Department of Otorhinolaryngology, Berlin , Germany
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4
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Wisotzky EL, Uecker FC, Rosenthal JC, Arens P, Schneider A. Near-UV to Near-IR Multispectral Illumination in a Digital Surgical Microscope. Current Directions in Biomedical Engineering 2021. [DOI: 10.1515/cdbme-2021-2118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
We present a stereo-multispectral microscope equipped with an additional illumination unit allowing further narrow-band illumination in the spectral range of 400n.m up to 800nm. The combination of the normal microscope illumination with the multispectral light unit allows different illumination modalities to be realized, which enables intraoperative spectral tissue analysis with direct visualization. Two illumination methods were tested in two cholesteatoma surgeries. In addition, two cholesteatom samples were illuminated and analyzed ex vivo. Cholesteatoma showed :fluorescent characteristics in our ex vivo analysis. This behavior could be used intraoperatively using a combination of white light and strong near-UV to blue illumination to highlight cholesteatoma tissue in the microscopic image. Thus, the visual differentiability of different tissue types can be improved and the clinical decision-making process can be accelerated.
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Affiliation(s)
- Eric L. Wisotzky
- Fraunhofer HHI, Vision and Imaging Technologies & Humboldt Universitat zu Berlin, Visual Computing & Charita- Universitatsmedizin Berlin , Germany
| | - Florian C. Uecker
- Charite- Universitatsmedizin Berlin, Department of Otorhinolaryngology, Berlin , Germany
| | | | - Philipp Arens
- Charite- Universitatsmedizin Berlin, Department of Otorhinolaryngology, Berlin , Germany
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Bernhard N, Gauger U, Romo Ventura E, Uecker FC, Olze H, Knopke S, Hänsel T, Coordes A. Duration of deafness impacts auditory performance after cochlear implantation: A meta-analysis. Laryngoscope Investig Otolaryngol 2021; 6:291-301. [PMID: 33869761 PMCID: PMC8035957 DOI: 10.1002/lio2.528] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE Hearing loss is a highly disabling condition. Cochlear implantation is an established remedy if conventional hearing aids have failed to alleviate the level of disability. Unfortunately, cochlear implant (CI) performance varies dramatically. This study aims to examine the effects of duration of deafness (DoD) prior to cochlear implantation and the postoperative duration of implant experience with resulting hearing performance in postlingually deaf patients. METHODS A systematic literature review and two meta-analyses were conducted using the search terms cochlear implant AND duration deafness. Included studies evaluate the correlation between the DoD and auditory performance after cochlear implantation using monosyllabic and sentence tests. Correlation coefficients were determined using Pearson's correlation and Spearman rho. RESULTS A total of 36 studies were identified and included data on cochlear implantations following postlingual deafness and postoperative speech testing of hearing outcomes for 1802 patients. The mean age ranged from 44 to 68 years with a DoD of 0.1 to 77 years. Cochlear implant use varied from 3 months to 14 years of age. Speech perception, which was assessed by sentence and monosyllabic word perception, was negatively correlated with DoD. Subgroup analyses revealed worse outcomes for longer DoD and shorter postoperative follow-up. CONCLUSION DoD is one of the most important factors to predict speech perception after cochlear implantation in postlingually deaf patients. The meta-analyses revealed a negative correlation between length of auditory deprivation and postoperative sentence and monosyllabic speech perception. Longer DoD seems to lead to worse CI performance, whereas more experience with CI mitigates the effect.
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Affiliation(s)
- Nikolai Bernhard
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | | | | | - Florian C. Uecker
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Heidi Olze
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Steffen Knopke
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Toni Hänsel
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Annekatrin Coordes
- Department of Otorhinolaryngology, Head and Neck SurgeryCharité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
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6
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Wisotzky EL, Kossack B, Uecker FC, Arens P, Hilsmann A, Eisert P. Validation of two techniques for intraoperative hyperspectral human tissue determination. J Med Imaging (Bellingham) 2020; 7:065001. [PMID: 33241074 PMCID: PMC7675006 DOI: 10.1117/1.jmi.7.6.065001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 10/26/2020] [Indexed: 12/23/2022] Open
Abstract
Purpose: Hyperspectral imaging (HSI) is a non-contact optical imaging technique with the potential to serve as an intraoperative computer-aided diagnostic tool. Our work analyzes the optical properties of visible structures in the surgical field for automatic tissue categorization. Approach: Building an HSI-based computer-aided tissue analysis system requires accurate ground truth and validation of optical soft tissue properties as these show large variability. We introduce and validate two different hyperspectral intraoperative imaging setups and their use for the analysis of optical tissue properties. First, we present an improved multispectral filter-wheel setup integrated into a fully digital microscope. Second, we present a novel setup of two hyperspectral snapshot cameras for intraoperative usage. Both setups are operating in the spectral range of 400 up to 975 nm. They are calibrated and validated using the same database and calibration set. Results: For validation, a color chart with 18 well-defined color spectra in the visual range is analyzed. Thus the results acquired with both settings become transferable and comparable to each other as well as between different interventions. On patient data of two different otorhinolaryngology procedures, we analyze the optical behaviors of different soft tissues and show a visualization of such different spectral information. Conclusion: The introduced calibration pipeline for different HSI setups allows comparison between all acquired spectral information. Clinical in vivo data underline the potential of HSI as an intraoperative diagnostic tool and the clinical usability of both introduced setups. Thereby, we demonstrate their feasibility for the in vivo analysis and categorization of different human soft tissues.
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Affiliation(s)
- Eric L. Wisotzky
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing Group, Berlin, Germany
| | - Benjamin Kossack
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
| | - Florian C. Uecker
- Charité—Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Philipp Arens
- Charité—Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Anna Hilsmann
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
| | - Peter Eisert
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing Group, Berlin, Germany
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7
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Wisotzky EL, Kossack B, Uecker FC, Arens P, Hilsmann A, Eisert P. Validation of two techniques for intraoperative hyperspectral human tissue determination. J Med Imaging (Bellingham) 2020; 7:065001. [PMID: 33241074 DOI: 10.1117/12.251281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 10/26/2020] [Indexed: 05/22/2023] Open
Abstract
Purpose: Hyperspectral imaging (HSI) is a non-contact optical imaging technique with the potential to serve as an intraoperative computer-aided diagnostic tool. Our work analyzes the optical properties of visible structures in the surgical field for automatic tissue categorization. Approach: Building an HSI-based computer-aided tissue analysis system requires accurate ground truth and validation of optical soft tissue properties as these show large variability. We introduce and validate two different hyperspectral intraoperative imaging setups and their use for the analysis of optical tissue properties. First, we present an improved multispectral filter-wheel setup integrated into a fully digital microscope. Second, we present a novel setup of two hyperspectral snapshot cameras for intraoperative usage. Both setups are operating in the spectral range of 400 up to 975 nm. They are calibrated and validated using the same database and calibration set. Results: For validation, a color chart with 18 well-defined color spectra in the visual range is analyzed. Thus the results acquired with both settings become transferable and comparable to each other as well as between different interventions. On patient data of two different otorhinolaryngology procedures, we analyze the optical behaviors of different soft tissues and show a visualization of such different spectral information. Conclusion: The introduced calibration pipeline for different HSI setups allows comparison between all acquired spectral information. Clinical in vivo data underline the potential of HSI as an intraoperative diagnostic tool and the clinical usability of both introduced setups. Thereby, we demonstrate their feasibility for the in vivo analysis and categorization of different human soft tissues.
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Affiliation(s)
- Eric L Wisotzky
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing Group, Berlin, Germany
| | - Benjamin Kossack
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
| | - Florian C Uecker
- Charité-Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Philipp Arens
- Charité-Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Anna Hilsmann
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
| | - Peter Eisert
- Fraunhofer Heinrich Hertz Institute, Computer Vision and Graphics Group, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing Group, Berlin, Germany
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8
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Wisotzky EL, Rosenthal JC, Wege U, Hilsmann A, Eisert P, Uecker FC. Surgical Guidance for Removal of Cholesteatoma Using a Multispectral 3D-Endoscope. Sensors (Basel) 2020; 20:E5334. [PMID: 32957675 PMCID: PMC7570528 DOI: 10.3390/s20185334] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/13/2020] [Accepted: 09/14/2020] [Indexed: 01/15/2023]
Abstract
We develop a stereo-multispectral endoscopic prototype in which a filter-wheel is used for surgical guidance to remove cholesteatoma tissue in the middle ear. Cholesteatoma is a destructive proliferating tissue. The only treatment for this disease is surgery. Removal is a very demanding task, even for experienced surgeons. It is very difficult to distinguish between bone and cholesteatoma. In addition, it can even reoccur if not all tissue particles of the cholesteatoma are removed, which leads to undesirable follow-up operations. Therefore, we propose an image-based method that combines multispectral tissue classification and 3D reconstruction to identify all parts of the removed tissue and determine their metric dimensions intraoperatively. The designed multispectral filter-wheel 3D-endoscope prototype can switch between narrow-band spectral and broad-band white illumination, which is technically evaluated in terms of optical system properties. Further, it is tested and evaluated on three patients. The wavelengths 400 nm and 420 nm are identified as most suitable for the differentiation task. The stereoscopic image acquisition allows accurate 3D surface reconstruction of the enhanced image information. The first results are promising, as the cholesteatoma can be easily highlighted, correctly identified, and visualized as a true-to-scale 3D model showing the patient-specific anatomy.
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Affiliation(s)
- Eric L. Wisotzky
- Department of Computer Vision and Graphics, Fraunhofer Heinrich-Hertz-Institute, 10587 Berlin, Germany; (J.-C.R.); (U.W.); (A.H.); (P.E.)
- Department of Visual Computing, Humboldt Universität zu Berlin, 10117 Berlin, Germany
| | - Jean-Claude Rosenthal
- Department of Computer Vision and Graphics, Fraunhofer Heinrich-Hertz-Institute, 10587 Berlin, Germany; (J.-C.R.); (U.W.); (A.H.); (P.E.)
| | - Ulla Wege
- Department of Computer Vision and Graphics, Fraunhofer Heinrich-Hertz-Institute, 10587 Berlin, Germany; (J.-C.R.); (U.W.); (A.H.); (P.E.)
| | - Anna Hilsmann
- Department of Computer Vision and Graphics, Fraunhofer Heinrich-Hertz-Institute, 10587 Berlin, Germany; (J.-C.R.); (U.W.); (A.H.); (P.E.)
| | - Peter Eisert
- Department of Computer Vision and Graphics, Fraunhofer Heinrich-Hertz-Institute, 10587 Berlin, Germany; (J.-C.R.); (U.W.); (A.H.); (P.E.)
- Department of Visual Computing, Humboldt Universität zu Berlin, 10117 Berlin, Germany
| | - Florian C. Uecker
- Department of Otorhinolaryngology, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany;
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9
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Wisotzky EL, Rosenthal JC, Hilsmann A, Eisert P, Uecker FC. A multispectral 3D-Endoscope for Cholesteatoma Removal. Current Directions in Biomedical Engineering 2020. [DOI: 10.1515/cdbme-2020-3065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
We present a stereo-multispectral endoscopic prototype using a filter-wheel to guide the removal of cholesteatoma tissue in the middle ear. An image-based method is used that combines multispectral tissue classification for the detection of tissue to be removed and 3Dreconstruction to determine its metric dimensions. The multispectral illumination used for tissue classification ranges from λ = 400 nm to λ = 500 nm with step-size of 20 nm, which results in six different narrow-band illumination modes. For classical RGB imaging and metric calculations, a broadband illumination mode is applied before and after the narrow-band illumination. The spectral information is augmented into the broadband mode using an overlay technique. The combination of multispectral imaging with stereoscopic 3D-reconstruction results in new valuable visualization of intraoperative data. This allows to generate a 3D-model of the patients anatomy highlighting the identified malicious tissue and compare the anatomical dimensions with pre-operative CT data.
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Affiliation(s)
- Eric L. Wisotzky
- Fraunhofer HHI, Vision and Imaging Technologies, Berlin , Germany
| | | | - Anna Hilsmann
- Fraunhofer HHI, Vision and Imaging Technologies & Humboldt Universität zu Berlin, Visual Computing, Berlin , Germany
| | - Peter Eisert
- Fraunhofer HHI, Vision and Imaging Technologies & Humboldt Universität zu Berlin, Visual Computing, Berlin , Germany
| | - Florian C. Uecker
- Charité – Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin , Germany
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10
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Weiss NM, Schneider A, Hempel JM, Uecker FC, van Bonn SM, Schraven SP, Rettschlag S, Schuldt T, Müller J, Plontke SK, Mlynski R. Evaluating the didactic value of 3D visualization in otosurgery. Eur Arch Otorhinolaryngol 2020; 278:1027-1033. [PMID: 32613353 PMCID: PMC7954761 DOI: 10.1007/s00405-020-06171-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/23/2020] [Indexed: 11/25/2022]
Abstract
Introduction Improvements of surgical visualization add value to the quality of clinical routine and offer the opportunity to improve surgical education of medical staff. The aim of this study was to determine whether otorhinolaryngology trainees gain additional comprehension of the anatomical structures and the surgical site when 3D visualization is used. Methods Data were collected from ENT trainees of microsurgical courses of the middle ear, inner ear and lateral skull base at four university ENT departments (Charité (Berlin), Martin Luther University Halle-Wittenberg (Halle/Saale), Ludwig Maximilian University (Munich) and Rostock University Medical Center). Participants were asked to complete a questionnaire assessing the subjective value of identical surgical field visualization in 3D for surgeon and observer. Results A total of 112 participants completed the questionnaire. The majority of participants stated a high additional value of 3D visualization compared to 2D visualization, with 75% fully agreeing to the statement that 3D visualization of the surgical field is superior to perceive the anatomical topography and structures compared to 2D representation. Participants encouraged the storage of data in online learning platforms. Conclusion The results show that 3D visualization with identical imaging for surgeon and observer is a useful tool in teaching of microsurgery. It addresses perception of anatomical topography and structures as well as conception of the surgical workflow. Electronic supplementary material The online version of this article (10.1007/s00405-020-06171-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
| | - Armin Schneider
- ARRI Medical GmbH, Türkenstraße 89, 80799, Munich, Germany
- Research Group Minimally Invasive Interdisciplinary Therapeutical Intervention (MITI), "Klinikum rechts der Isar", Technical University Munich (TUM), Munich, Germany
| | - John M Hempel
- Department of Otorhinolaryngology, Head and Neck Surgery, "Ludwig Maximilian University", University Medical Center Munich, Munich, Germany
| | - Florian C Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery, "Charité" University Medical Center, Berlin, Germany
| | - Sara M van Bonn
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Sebastian P Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Stefanie Rettschlag
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Tobias Schuldt
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Joachim Müller
- Department of Otorhinolaryngology, Head and Neck Surgery, "Ludwig Maximilian University", University Medical Center Munich, Munich, Germany
| | - Stefan K Plontke
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
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11
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Mahmut MK, Uecker FC, Göktas Ö, Georgsdorf W, Oleszkiewicz A, Hummel T. Changes in olfactory function after immersive exposure to odorants. J SENS STUD 2020. [DOI: 10.1111/joss.12559] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Mehmet K. Mahmut
- Smell and Taste Clinic, Department of OtorhinolaryngologyTU Dresden Dresden Germany
- Food, Flavour and Fragrance Lab, Department of PsychologyMacquarie University Sydney Australia
| | - Florian C. Uecker
- ENT DepartmentCharité Campus Mitte, Universitätsmedizin Berlin Berlin Germany
| | - Önder Göktas
- ENT DepartmentCharité Campus Mitte, Universitätsmedizin Berlin Berlin Germany
| | | | - Anna Oleszkiewicz
- Smell and Taste Clinic, Department of OtorhinolaryngologyTU Dresden Dresden Germany
- Institute of PsychologyUniversity of Wrocław Wrocław Poland
| | - Thomas Hummel
- Smell and Taste Clinic, Department of OtorhinolaryngologyTU Dresden Dresden Germany
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12
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Wisotzky EL, Arens P, Dommerich S, Hilsmann A, Eisert P, Uecker FC. Determination of the optical properties of cholesteatoma in the spectral range of 250 to 800 nm. Biomed Opt Express 2020; 11:1489-1500. [PMID: 32206424 PMCID: PMC7075596 DOI: 10.1364/boe.384742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 05/04/2023]
Abstract
Cholesteatoma of the ear can lead to life-threatening complications and its only treatment is surgery. The smallest remnants of cholesteatoma can lead to recurrence of this disease. Therefore, the optical properties of this tissue are of high importance to identify and remove all cholesteatoma during therapy. In this paper, we determine the absorption coefficient µ a and scattering coefficient µ s ' of cholesteatoma and bone samples in the wavelength range of 250 nm to 800 nm obtained during five surgeries. These values are determined by high precision integrating sphere measurements in combination with an optimized inverse Monte Carlo simulation (iMCS). To conserve the optical behavior of living tissues, the optical spectroscopy measurements are performed immediately after tissue removal and preparation. It is shown that in the near-UV and visible spectrum clear differences exist between cholesteatoma and bone tissue. While µ a is decreasing homogeneously for cholesteatoma, it retains at the high level for bone in the region of 350 nm to 580 nm. Further, the results for the cholesteatoma measurements correspond to published healthy epidermis data. These differences in the optical parameters reveal the future possibility to detect and identify, automatically or semi-automatically, cholesteatoma tissue for active treatment decisions during image-guided surgery leading to a better surgical outcome.
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Affiliation(s)
- Eric L Wisotzky
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing, Berlin, Germany
- Eric L. Wisotzky and Philipp Arens contribute as joint first author
| | - Philipp Arens
- Charité - Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
- Eric L. Wisotzky and Philipp Arens contribute as joint first author
| | - Steffen Dommerich
- Charité - Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Anna Hilsmann
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
| | - Peter Eisert
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing, Berlin, Germany
| | - Florian C Uecker
- Charité - Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
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13
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Somerlik-Fuchs KH, Krueger TB, Uecker FC, Reich U, Kogut A, Schiemer JF, Olze H, Rupp R, Kneist W, Hoffmann KP. Research platform for medical device development to simplify translation to the market .. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:1452-1455. [PMID: 31946167 DOI: 10.1109/embc.2019.8857935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
New regulations for medical products complicate research projects for new application fields and translation of innovative product ideas to refundable medical products becomes a high economic risk. All this demands for a CE-marked platform, which offers the possibility to access the recorded data online or even directly the hardware during research applications, to bridge the gap. This paper describes how a CE-marked medical product can be extended by different interfaces to enable basic research or simplify first proof-of-concept studies thus optimizing prototype development in research projects, simplifying the documentation process and reducing the risk for market access.
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14
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Wisotzky EL, Uecker FC, Dommerich S, Hilsmann A, Eisert P, Arens P. Determination of optical properties of human tissues obtained from parotidectomy in the spectral range of 250 to 800 nm. J Biomed Opt 2019; 24:1-7. [PMID: 31797647 PMCID: PMC6890295 DOI: 10.1117/1.jbo.24.12.125001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/07/2019] [Indexed: 05/18/2023]
Abstract
The optical properties of human tissues are an important parameter in medical diagnostics and therapy. The knowledge of these parameters can encourage the development of automated, computer-driven optical tissue analysis methods. We determine the absorption coefficient μa and scattering coefficient μ s ' of different tissue types obtained during parotidectomy in the wavelength range of 250 to 800 nm. These values are determined by high precision integrating sphere measurements in combination with an optimized inverse Monte Carlo simulation. To conserve the optical behavior of living tissues, the optical spectroscopy measurements are performed immediately after tissue removal. Our study includes fresh samples of the ear, nose, and throat (ENT) region, as muscle tissue, nervous tissue, white adipose tissue, stromal tissue, parotid gland, and tumorous tissue of five patients. The measured behavior of adipose corresponds well with the literature, which sustains the applied method. It is shown that muscle is well supplied with blood as it features the same characteristic peaks at 430 and 555 nm in the absorption curve. The parameter μ s ' decreases for all tissue types above 570 nm. The accuracy is adequate for the purposes of providing μa and μ s ' of different human tissue types as muscle, fat, nerve, or gland tissue, which are embedded in large complex structures such as in the ENT area. It becomes possible for the first time to present reasonable results for the optical behavior of human soft tissue located in the ENT area and in the near-UV, visual, and near-infrared areas.
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Affiliation(s)
- Eric L. Wisotzky
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing, Berlin, Germany
| | - Florian C. Uecker
- Charité—Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Steffen Dommerich
- Charité—Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
| | - Anna Hilsmann
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
| | - Peter Eisert
- Fraunhofer Heinrich-Hertz-Institute, Computer Vision and Graphics, Berlin, Germany
- Humboldt-Universität zu Berlin, Visual Computing, Berlin, Germany
| | - Philipp Arens
- Charité—Universitätsmedizin Berlin, Department of Otorhinolaryngology, Berlin, Germany
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15
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Abstract
BACKGROUND Tufted angiomas (TAs) are uncommon benign vascular tumors mostly located cutaneously or subcutaneously in the skin of the neck and upper trunk, which appear during childhood and grow slowly. TAs are a variant of lobular capillary hemangiomas. This is the first study to provide an overview of the current literature in combination with the authors' own clinical experience on this rare entity in the head and neck area with non-dermatological localization. METHODS A selective Medline and Google Scholar database search was performed. Additionally, we conducted an ICD-10-based database search on hemangiomas (D18.0) in the Charité SAP patient records. RESULTS We identified 13 reports in the literature consisting of 16 cases of TA of the head and neck. Males were predominantly affected by TAs (70.6%). The mean age of the patients at the time of surgery was 31.5 years; the mean maximum diameter of the tumors was 16.3 mm. Additionally, we report on one case of TA in our Department of Head and Neck Surgery. A male patient presented with swelling and redness of the left upper eyelid. Radiological examination with computed tomography showed a suprabulbar tumor with a diameter of 13 mm. The tumor was surgically removed via a transcutaneous blepharoplasty approach with the patient under general anesthesia. DISCUSSION There is only one other case report on the surgical excision of an intra-orbital TA described to date. Here, we present an epidemiological overview, therapeutic considerations, and differential diagnoses.
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Affiliation(s)
- S M Häußler
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité - University Medical Center Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - F C Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité - University Medical Center Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - S Knopke
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité - University Medical Center Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - F Roßner
- Institute of Pathology, Charité - University Medical Center Berlin, Campus Charité Mitte, Berlin, Germany
| | - H Olze
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité - University Medical Center Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - A Böttcher
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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16
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Geran R, Uecker FC, Prüss H, Haeusler KG, Paul F, Ruprecht K, Harms L, Schmidt FA. Olfactory and Gustatory Dysfunction in Patients With Autoimmune Encephalitis. Front Neurol 2019; 10:480. [PMID: 31156532 PMCID: PMC6528690 DOI: 10.3389/fneur.2019.00480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/23/2019] [Indexed: 12/21/2022] Open
Abstract
Objective: To test the hypothesis that olfactory (OF) and gustatory function (GF) is disturbed in patients with autoimmune encephalitides (AE). Methods: The orthonasal OF was tested in 32 patients with AE and 32 age- and sex-matched healthy controls (HC) with the standardized Threshold Discrimination Identification (TDI) score. This validated olfactory testing method yields individual scores for olfactory threshold (T), odor discrimination (D), and identification (I), along with a composite TDI score. The GF was determined by the Taste Strip Test (TST). Results: Overall, 24/32 (75%) of patients with AE, but none of 32 HC (p < 0.001) had olfactory dysfunction in TDI testing. The results of the threshold, discrimination and identification subtests were significantly reduced in patients with AE compared to HC (all p < 0.001). Assessed by TST, 5/19 (26.3%) of patients with AE, but none of 19 HC presented a significant limitation in GF (p < 0.001). The TDI score was correlated with the subjective estimation of the olfactory capacity on a visual analog scale (VAS; rs = 0.475, p = 0.008). Neither age, sex, modified Rankin Scale nor disease duration were associated with the composite TDI score. Conclusions: This is the first study investigating OF and GF in AE patients. According to unblinded assessment, patients with AE have a reduced olfactory and gustatory capacity compared to HC, suggesting that olfactory and gustatory dysfunction are hitherto unrecognized symptoms in AE. Further studies with larger number of AE patients would be of interest to verify our results.
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Affiliation(s)
- Rohat Geran
- Department of Neurology, Clinical and Experimental Multiple Sclerosis Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Center for Stroke Research, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Florian C Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Harald Prüss
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
| | | | - Friedemann Paul
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Klemens Ruprecht
- Department of Neurology, Clinical and Experimental Multiple Sclerosis Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Lutz Harms
- Department of Neurology, Clinical and Experimental Multiple Sclerosis Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix A Schmidt
- Department of Neurology, Clinical and Experimental Multiple Sclerosis Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
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17
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Han P, Schriever VA, Peters P, Olze H, Uecker FC, Hummel T. Influence of Airflow Rate and Stimulus Concentration on Olfactory Event-Related Potentials (OERP) in Humans. Chem Senses 2019; 43:89-96. [PMID: 29145567 DOI: 10.1093/chemse/bjx072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Although the association between odor concentration and olfactory event-related potential (OERP) has been studied, less is known about the influence of airflow on OERP. The aim of this study was to investigate the influence of airflow rate and stimulus concentration on OERP in humans. Electroencephalogram data were collected from young healthy volunteers (n = 17) in separate sessions where 2-phenylethanol (PEA) was delivered in the following conditions: 8 L/min 50% v/v, 8 L/min 30% v/v, 4 L/min 100% v/v, and 4 L/min 60%v/v. Odor concentrations are referred to the %v/v achieved with air dilution and was not measured in the nose. Odor intensity ratings were recorded immediately after stimulus presentation. Data recorded at 5 electrodes (Fz, Cz, Pz, C3, and C4) were pooled and analyzed using both time-domain averaging and single-trial time-frequency domain approaches. Higher airflow rate significantly increased intensity ratings (F = 10.98, P < 0.01), and improved the signal-to-noise-ratio (F = 5.42, P = 0.025). Results from time-frequency analysis showed higher concentration versus lower concentration increased brain oscillations in the slow frequency band (1-3 Hz) at 0-600 ms; while higher airflow rates versus lower airflow rate increased theta-band oscillations (300-600 ms and 5-9 Hz) and decreased delta-band oscillations at 900-1500 ms after stimulus onset. In conclusion, compared to stimulus concentration, airflow rate was associated with improved OERP quality and more pronounced responses. The results suggest that intensity ratings and OERP are strongly related to the steepness of stimulus onset. High airflow rates are suggested for odor delivery in order to record OERP.
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Affiliation(s)
- Pengfei Han
- Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universität Dresden, Fetscherstrasse Dresden, Germany.,Abteilung Neuropädiatrie, Medizinische Fakultät Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Valentin A Schriever
- Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universität Dresden, Fetscherstrasse Dresden, Germany.,Abteilung Neuropädiatrie, Medizinische Fakultät Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Per Peters
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité-University Medical Center Berlin, Berlin, Germany
| | - Heidi Olze
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité-University Medical Center Berlin, Berlin, Germany
| | - Florian C Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery, Charité-University Medical Center Berlin, Berlin, Germany
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universität Dresden, Fetscherstrasse Dresden, Germany
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18
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Abstract
BACKGROUND Tufted angiomas (TAs) are uncommon benign vascular tumors mostly located cutaneously or subcutaneously in the skin of the neck and upper trunk, which appear during childhood and grow slowly. TAs are a variant of lobular capillary hemangiomas. This is the first study to provide an overview of the current literature in combination with the authors' own clinical experience on this rare entity in the head and neck area with non-dermatological localization. METHODS A selective Medline and Google Scholar database search was performed. Additionally, we conducted an ICD-10-based database search on hemangiomas (D18.0) in the Charité SAP patient records. RESULTS We identified 13 reports in the literature consisting of 16 cases of TA of the head and neck. Males were predominantly affected by TAs (70.6%). The mean age of the patients at the time of surgery was 31.5 years; the mean maximum diameter of the tumors was 16.3 mm. Additionally, we report on one case of TA in our Department of Head and Neck Surgery. A male patient presented with swelling and redness of the left upper eyelid. Radiological examination with computed tomography showed a suprabulbar tumor with a diameter of 13 mm. The tumor was surgically removed via a transcutaneous blepharoplasty approach with the patient under general anesthesia. DISCUSSION There is only one other case report on the surgical excision of an intra- orbital TA described to date. Here, we present an epidemiological overview, therapeutic considerations, and differential diagnoses.
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Affiliation(s)
- S M Häußler
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland.
| | - F C Uecker
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland
| | - S Knopke
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland
| | - F Roßner
- Institut für Pathologie, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Deutschland
| | - H Olze
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland
| | - A Böttcher
- Klinik und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
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19
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Stuck BA, Beule A, Damm M, Gudziol H, Hüttenbrink KB, Landis BN, Renner B, Sommer JU, Uecker FC, Vent J, Hummel T. [Position paper "Chemosensory testing for expert opinion in smell disorders"]. Laryngorhinootologie 2014; 93:327-9. [PMID: 24782205 DOI: 10.1055/s-0033-1364034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Providing expert opinion in the context of smell disorders is often challenging, not only with regard to general aspects of providing an expert opinion but particularly with regard to chemosensory testing. Currently there is no consensus which chemosensory test should be selected and how they should be executed. This positions paper from Committee on Olfaction and Gustation of the German Society of Otorhinolaryngology, Head and Neck Surgery aims to give concrete recommendations for chemosensory testing for providing expert opinion for smell disorders with regard to the selection and execution of these test.
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Affiliation(s)
| | - A Beule
- Klinik für Hals-Nasen-Ohrenkrankheiten, Kopf- und Halschirurgie der -Universitätsmedizin Greifswald
| | - M Damm
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde Köln
| | - H Gudziol
- Universitäts-HNO-Klinik, Universität Jena
| | - K-B Hüttenbrink
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde Köln
| | - B N Landis
- Unité de Rhinologie-Olfactologie, Service d'Oto-Rhino-Laryngologie et de Chirurgie cervico-faciale, Hôpitaux Universitaires de Genève
| | - B Renner
- Institut für Klinische und Experimentelle Pharmakologie und Toxikologie Erlangen
| | | | - F C Uecker
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Kopf- und -Halschirurgie der Charité - Universitätsmedizin Berlin
| | - J Vent
- Universitäts-HNO-Klinik Mannheim
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20
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Abstract
The internal jugular vein is an important landmark in most cervical operations. The surgeon should know the exact position and possible variations to prevent complications. We report on a duplicated internal jugular vein, which is a rare anatomic anomaly and discuss aetiology and appearance of this malformation and the possible affecting of the accessory nerve.
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Affiliation(s)
- F C Uecker
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Dresden.
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