CSI Computerized Scanning and Imaging Facility - computerized tomography

The auditory anatomy of the Minke Whale (Balaenoptera acutorostrata): Insights into potential sound reception pathways in a baleen whale

csiadmin — Thu, 22 Dec 2011 18:18:47 +0000

[1431] Yamato, M., D. R. Ketten, J. J. Arruda, S. R. Cramer, and K. Moore, "The auditory anatomy of the Minke Whale (Balaenoptera acutorostrata): Insights into potential sound reception pathways in a baleen whale", 19th Biennial Conference on the Biology of Marine Mammals, vol. Abstracts, Tampa, FL, Society for Marine Mammology, pp. 319, 11/2011.

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Ken Norris first described a potential mandibular sound reception pathway in odontocetes in 1964. To date, sound reception paths in mysticetes remain unknown. To understand hearing mechanisms in baleen whales, a thorough examination of their auditory anatomy is required. This study combines classical dissection with biomed1cal imaging techniques such as X-ray, computerized tomography (CT), and magnetic resonance imaging (MRl) to describe the anatomy of the minke whale head with a focus on the ear region. Six individuals have been examined to date.

Hearing Loss in Harbor Seals: Differential Diagnoses of Conductive and Sensorineural Losses via Auditory Evoked Potentials (AEP), Otoacoustic Emissions (OAE), and Computerized Tomography (CT)

csiadmin — Thu, 22 Dec 2011 17:51:05 +0000

[1430] Ketten, D. R., A. T. Mooney, R. C. Williams, K. Matassa, K. Patchett, J. J. Arruda, and S. R. Cramer, "Hearing Loss in Harbor Seals: Differential Diagnoses of Conductive and Sensorineural Losses via Auditory Evoked Potentials (AEP), Otoacoustic Emissions (OAE), and Computerized Tomography (CT)", 19th Biennial Conference on the Biology of Marine Mammals, Tampa, FL, Society for Marine Mammology, pp. 156, 11/2011.

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As concerns for noise impacts continue, more species and individuals are being tested to determine hearing ranges and peak sensitivities. In employing these results, it must be considered that data, particularly from stranded wild animals, older individuals, or high noise areas, may reflect abnormal hearing. Case studies demonstrate pinnipeds sustain a wide range of conditions that may impair hearing. Approximately 20 % of stranded seals have ear infections which if undetected and untreated may lead to septicemia.

Three-dimensional reconstructions of the dolphin ear

Mon, 22 Mar 2010 19:55:50 +0000

[88] Ketten, D. R., and D. Wartzok, "Three-dimensional reconstructions of the dolphin ear", Sensory Abilities of Cetaceans: Field and Laboratroy Evidence, Proc. NATO ASI Ser. A, Life Sci., vol. 196, New York and London, Plenum Press, pp. 81-105, 09-Aug-1999, 1990.

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CT scanning and computerized reconstructions of the inner ear of multituberculate mammals

Mon, 22 Mar 2010 19:55:49 +0000

[87] Zhexi, L., and D. R. Ketten, "CT scanning and computerized reconstructions of the inner ear of multituberculate mammals", Journal of Vertebrate Paleontology, vol. 11, issue 2, pp. 220-228, June 1991.

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Structure, function, and adaptation of the manatee ear

Mon, 22 Mar 2010 19:55:47 +0000

[84] Ketten, D. R., D. K. Odell, and D. P. Domning, "Structure, function, and adaptation of the manatee ear", Marine Mammal Sensory Systems, New York, Plenum Press, pp. 77-95, 1993.

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The role of temporal bone imaging in cochlear implants

Mon, 22 Mar 2010 19:55:46 +0000

[80] Ketten, D. R., "The role of temporal bone imaging in cochlear implants", Current Opinion in Otolaryngology & Head and Neck Surgery, Otology-Neurotology, vol. 2, issue 5, pp. 401-408, 1994.

Determination of the position of Nucleus® cochlear implant electrodes in the inner ear

Mon, 22 Mar 2010 19:55:45 +0000

[79] Skinner, M. W., D. R. Ketten, M. W. Vannier, G. A. Gates, R. L. Yoffie, and W. A. Kalender, "Determination of the position of Nucleus® cochlear implant electrodes in the inner ear", The American Journal of Otology, vol. 15, issue 5, pp. 644-651, 1994.

In vivo vs. in situ measures in cochlear implantation. Invited paper.

Mon, 22 Mar 2010 19:55:44 +0000

[76] Ketten, D. R., "In vivo vs. in situ measures in cochlear implantation. Invited paper.", Association for Research in Otolaryngology, Temporal Bone Workshop., 1996.

Unwrapping cochlear implants by spiral CT

Mon, 22 Mar 2010 19:55:42 +0000

[74] Wang, G., M. W. Vannier, M. W. Skinner, W. A. Kalender, A. Polacin, and D. R. Ketten, "Unwrapping cochlear implants by spiral CT", IEEE Transactions on Biomedical Engineering, vol. 43, issue 9, pp. 891-900, 1996.

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Marine mammal ears: an anatomical perspective on underwater hearing

Mon, 22 Mar 2010 19:55:39 +0000

[67] Ketten, D. R., "Marine mammal ears: an anatomical perspective on underwater hearing", International Congress on Acoustics, vol. 3: Elsevier Publishing, pp. 1657-1660, 1998.

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