Imaging the External Ear: Practical Approach to Normal and Pathologic                     Conditions

Tsuno, Niedja Santos Gonçalves; Tsuno, Marco Yukio; Neto, Carlos A F Coelho; Noujaim, Samir; Decnop, Marcos; Pacheco, Felipe Torres; Souza, Soraia Ale; Fonseca, Ana Paula Alves; García, Mora

doi:10.1148/rg.210148

Cited by 6 publications

(4 citation statements)

References 55 publications

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“…To obtain adequate 3D data from human ear lobes to serve as production files for additive manufactured outer ear reproduction, two main approaches for image data acquisition can be considered. From the clinical side, volumetric data (see "Volumetric data acquisition" section) from magnetic resonance tomography imaging (MRI) [27], computer tomography (CT) [40][41][42] or cone beam computer tomography (CBCT) is readily available, and can be integrated in the clinical routine without difficulty.…”

Section: D Data Acquisition Possibilities For the Outer Earmentioning

confidence: 99%

“…2 Anatomy of the outer / external right human ear (of author TW), consisting (from the inside out) of the external end of auditory canal in the center (gray), surrounded by tragus and antitragus (green), the antihelix and helix with their 'legs' (crus) on the top (in blue), which enclose the concha and fossa (purple), and the scapa (gray). The bottom part of the ear is the 'lobe' (orange) applied if hard tissue is involved, such as the human skull [40][41][42]. Moreover, contrary to full-body scanners, digital volume tomography (DVT) can be relatively small and are available in increasing numbers in ENT clinics [44][45][46].…”

Section: Volumetric Data Acquisitionmentioning

confidence: 99%

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Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

Wersényi,

Scheper,

Spagnol

et al. 2023

Head Face Med

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Current 3D scanning and printing technologies offer not only state-of-the-art developments in the field of medical imaging and bio-engineering, but also cost and time effective solutions for surgical reconstruction procedures. Besides tissue engineering, where living cells are used, bio-compatible polymers or synthetic resin can be applied. The combination of 3D handheld scanning devices or volumetric imaging, (open-source) image processing packages, and 3D printers form a complete workflow chain that is capable of effective rapid prototyping of outer ear replicas. This paper reviews current possibilities and latest use cases for 3D-scanning, data processing and printing of outer ear replicas with a focus on low-cost solutions for rehabilitation engineering.

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Section: D Data Acquisition Possibilities For the Outer Earmentioning

confidence: 99%

Section: Volumetric Data Acquisitionmentioning

confidence: 99%

Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

Wersényi,

Scheper,

Spagnol

et al. 2023

Head Face Med

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“…The adult auricle and external auditory canal should be differentially selected to facilitate the drainage of middle ear effusions. This design ensures that the removal of secretion and foreign bodies from the ear canal and middle ear drainage in tympanic tearing [105]. There is significant variation in auricula shape among other primates, with the auricula height/width ratio being highest in Lorises (the most pointed ears) and lowest in Apes (the most rounded or humanoid ear).…”

Section: Otitis Mediamentioning

confidence: 99%

Evolutionary Origins of ORL Disorders

Turaman¹

2022

Int J Family Med Healthcare

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It is understood that our ancestors gained a strong evolutionary selective advantage in shaping the vocal tract that allowing them speak more intelligibly. However, humans pay heavy prices for the uniqueness of vocal tracts configuration. We precariously swallow our mouthful in exchange for speaking clearly, and the second heavy price humans pay is sleep snoring. Their evolutionary cause is that the respiratory system deriving on the wrong side and too late from the alimentary system. The fact that our nasal septum is usually curved contributes to these disorders. The reason of this is that a few million years ago humans had to compromise from the width of the birth canal with their pelvis in order to stand upright. As for our children’s ears, their development resembles the evolution of hominoids and they are far from smooth.

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“…Otitis externa maligna [11] • Cholesteatoma of the external ear canal [11] • Auditory canal exostosis [12] •…”

mentioning

confidence: 99%

Imaging of Pathologies of the Temporal Bone and Middle Ear: Inflammatory Diseases, Their Mimics and Potential Complications—Pictorial Review

Kloth,

Beck,

Sollmann

et al. 2023

Tomography

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Imaging of the temporal bone and middle ear is challenging for radiologists due to the abundance of distinct anatomical structures and the plethora of possible pathologies. The basis for a precise diagnosis is knowledge of the underlying anatomy as well as the clinical presentation and the individual patient’s otological status. In this article, we aimed to summarize the most common inflammatory lesions of the temporal bone and middle ear, describe their specific imaging characteristics, and highlight their differential diagnoses. First, we introduce anatomical and imaging fundamentals. Additionally, a point-to-point comparison of the radiological and histological features of the wide spectrum of inflammatory diseases of the temporal bone and middle ear in context with a review of the current literature and current trends is given.

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Imaging the External Ear: Practical Approach to Normal and Pathologic Conditions

Cited by 6 publications

References 55 publications

Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

Evolutionary Origins of ORL Disorders

Imaging of Pathologies of the Temporal Bone and Middle Ear: Inflammatory Diseases, Their Mimics and Potential Complications—Pictorial Review

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