An advanced computer-aided geometric modeling and fabrication method for human middle ear

Sun, Qunli; Chang, Kuang-Hua; Dormer, Kenneth J.; Dyer, R. Kent; Gan, Rong Z.

doi:10.1016/s1350-4533(02)00045-0

Cited by 59 publications

(49 citation statements)

References 6 publications

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“…28 Sun et al have used three-dimensional reconstruction to build a physical model of the entire middle ear. 29 Three-dimensional computer models have been validated as useful educational tools with which to increase clinical understanding of the topographical relationships of various structures within the temporal bone. 16 Entering 'temporal bone' into a 'YouTube' search will deliver a number of online dissection videos.…”

Section: Alternatives To Cadaveric Dissectionmentioning

confidence: 99%

Review of temporal bone dissection teaching: how it was, is and will be

2009

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Objective: We aimed to review the history of anatomical dissection, and to examine how modern educational techniques will change the way temporal bone dissection is taught to otolaryngology trainees.Method: Review of the literature using Medline, Embase and PubMed database searches. Results: Temporal bone anatomy has traditionally been taught using cadaveric specimens. However, resources such as three-dimensional reconstructed models and 'virtual reality' temporal bone simulators have a place in educating the otolaryngology trainee.Conclusion: We should encourage the use of fresh frozen cadaveric temporal bone specimens for future otologists. Artificial three-dimensional models and virtual reality temporal bone simulators can be used to educate junior trainees, thus conserving the scarce resource of cadaveric bones.

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Section: Alternatives To Cadaveric Dissectionmentioning

confidence: 99%

Review of temporal bone dissection teaching: how it was, is and will be

2009

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“…In the literature, traditional serial histological sectioning has often been used for volumetric sizing, including middle and inner ear (Decraemer et al, 2002;Rau et al, 2013;Wang et al, 2006;Sun et al, 2002). This approach provides the greatest detail but is very time consuming.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Tympanic Cavity Volume in Newborns using Computerized Tomography Scanning

et al. 2016

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Morphol., 34(1):189-196, 2016. SUMMARY:This study reports tympanic cavity (TC) volume in newborns, which was missing in the literature. Ex vivo histology and computerized tomography (CT) scans were performed on temporal bone and data were analyzed in part using software developed in house. CT images with a slice thickness of 0.5 mm were obtained from 5 newborn cadavers and analyzed independently by two expert researchers. The border of the TC was delineated manually and measurement of area of interest was calculated on masked images. Then, the area measurements from all sections were added to estimate the total volume. The agreements between the histological and CT findings were then compared for accuracy, repeatability and reliability. The Dice and Jaccard similarity coefficient measures were used as a statistical validation metric to evaluate the assessor's performance in manual volume segmentation. Good assessor agreement was observed with average Dice values above 0.8 indicating that consistent and reliable volume measurements were feasible. The proposed protocol was shown to be accurate in calculating the TC volume, and thus can be used for computer-assisted presurgical planning or for diagnosing structural alterations in TC.

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“…5, ends of branches of all examples are convex and within the distance between neighboring slices. Sun et al [13] used 'doom' feature in SolidWorks to describe the terminal region convexly for finite element analysis or multibody dynamic analysis of human middle ear. Thus convex-end-condition is very (a) (b) (c) important and we think these results will play an important role in conducting more advanced dynamic analysis of knee joint hereafter.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…For 3D reconstruction, several methods have been proposed, ranging from polyhedron-based approaches [1,3,4,5], intensively studied during the past decade, to tiling algorithms [1,3,4,5], skinning methods [6,7,8] and surface fittings [2,9,10,13].…”

Section: Introductionmentioning

confidence: 99%

A New Modeling Method for Objects with Branching Problem Using Non-uniform B-Spline

Kim

Choe

et al. 2004

Computational Science - ICCS 2004

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Abstract. In many applications, objects are reconstructed from cross-sections for visualization, finite element and dynamic analysis. Although cross-section of an object may contain multiple contours, a few papers have dealt with branching problem. Moreover ends of branches are described flatly. In this paper, as a basic study for dynamic analysis of a human knee joint, we present a new modeling method which proposes a data-set for solving branching problem and handling convex-end-condition of branches. We select an initial standard point from lowest slice and decide a nearest standard point of the next slice and the next, in turns. Based on standard points, we complete the data-set by applying contour alignment. For 3D reconstruction, the surface is approximated by bicubic non-uniform B-spline surface fitting. This method provides the smooth surface model with C 2 continuity and describes the convexity of ends of branches.

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An advanced computer-aided geometric modeling and fabrication method for human middle ear

Cited by 59 publications

References 6 publications

Review of temporal bone dissection teaching: how it was, is and will be

Review of temporal bone dissection teaching: how it was, is and will be

Characterization of Tympanic Cavity Volume in Newborns using Computerized Tomography Scanning

A New Modeling Method for Objects with Branching Problem Using Non-uniform B-Spline

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