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Rapid-prototyped temporal bone and inner-ear models replicated by adjusting computed tomography thresholds.
J Laryngol Otol. 2007 Nov; 121(11):1025-8.JL

Abstract

PURPOSE

This study aimed to investigate the validity of adjusting computed tomography thresholds in order to replicate a temporal bone model suitable for dissection training and education.

MATERIALS AND METHODS

A simulated three-dimensional model of a human temporal bone was prototyped using selective laser sintering. The powder layers were laser-fused, based on detailed computed tomography data, and accumulated to create a three-dimensional structure. The computed tomography threshold value of the stapes was modified on standard triangular language file in order to replicate the stapes. The intensity value was determined to select the fluid lumen of the inner ear and the bone surface, in order to replicate the inner ear.

RESULTS

The model could be shaved, using surgical instruments, in the same manner as during real surgery. The stapes could be reproduced, making this model even more realistic than a previous version. The inner ear was recreated, along with the surrounding bony wall and the ossicles.

CONCLUSION

This model facilitates dissection training and easy understanding of the relation between the labyrinth and the surrounding structures.

Authors+Show Affiliations

Department of Otolaryngology, Tokyo Medical University, Tokyo, Japan. otosuzu@tokyo-med.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17381895

Citation

Suzuki, M, et al. "Rapid-prototyped Temporal Bone and Inner-ear Models Replicated By Adjusting Computed Tomography Thresholds." The Journal of Laryngology and Otology, vol. 121, no. 11, 2007, pp. 1025-8.
Suzuki M, Hagiwara A, Ogawa Y, et al. Rapid-prototyped temporal bone and inner-ear models replicated by adjusting computed tomography thresholds. J Laryngol Otol. 2007;121(11):1025-8.
Suzuki, M., Hagiwara, A., Ogawa, Y., & Ono, H. (2007). Rapid-prototyped temporal bone and inner-ear models replicated by adjusting computed tomography thresholds. The Journal of Laryngology and Otology, 121(11), 1025-8.
Suzuki M, et al. Rapid-prototyped Temporal Bone and Inner-ear Models Replicated By Adjusting Computed Tomography Thresholds. J Laryngol Otol. 2007;121(11):1025-8. PubMed PMID: 17381895.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rapid-prototyped temporal bone and inner-ear models replicated by adjusting computed tomography thresholds. AU - Suzuki,M, AU - Hagiwara,A, AU - Ogawa,Y, AU - Ono,H, Y1 - 2007/03/26/ PY - 2007/3/27/pubmed PY - 2008/4/2/medline PY - 2007/3/27/entrez SP - 1025 EP - 8 JF - The Journal of laryngology and otology JO - J Laryngol Otol VL - 121 IS - 11 N2 - PURPOSE: This study aimed to investigate the validity of adjusting computed tomography thresholds in order to replicate a temporal bone model suitable for dissection training and education. MATERIALS AND METHODS: A simulated three-dimensional model of a human temporal bone was prototyped using selective laser sintering. The powder layers were laser-fused, based on detailed computed tomography data, and accumulated to create a three-dimensional structure. The computed tomography threshold value of the stapes was modified on standard triangular language file in order to replicate the stapes. The intensity value was determined to select the fluid lumen of the inner ear and the bone surface, in order to replicate the inner ear. RESULTS: The model could be shaved, using surgical instruments, in the same manner as during real surgery. The stapes could be reproduced, making this model even more realistic than a previous version. The inner ear was recreated, along with the surrounding bony wall and the ossicles. CONCLUSION: This model facilitates dissection training and easy understanding of the relation between the labyrinth and the surrounding structures. SN - 1748-5460 UR - https://www.unboundmedicine.com/medline/citation/17381895/Rapid_prototyped_temporal_bone_and_inner_ear_models_replicated_by_adjusting_computed_tomography_thresholds_ L2 - https://www.cambridge.org/core/product/identifier/S0022215107006706/type/journal_article DB - PRIME DP - Unbound Medicine ER -