Three-Dimensional Imaging of the Temporal Bone using Helical CT in Cochlear Implant Patients

1997 ◽  
pp. 96-99 ◽  
Author(s):  
T. Himi ◽  
A. Kataura ◽  
M. Sakata ◽  
Y. Odawara ◽  
J. Satoh ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Temporal Bone ◽  
Three Dimensional ◽  
Helical Ct ◽  
Three Dimensional Imaging

Three-Dimensional Imaging of the Temporal Bone Using a Helical CT Scan and Its Application in Patients with Cochlear Implantation

ORL ◽  
1996 ◽  
Vol 58 (6) ◽  
pp. 298-300 ◽  
Author(s):  
Tetsuo Himi ◽  
Akikatsu Kataura ◽  
Motomichi Sakata ◽  
Yoshihiro Odawara ◽  
Jun-ichi Satoh ◽  
...  
Keyword(s):  
Ct Scan ◽  
Temporal Bone ◽  
Cochlear Implantation ◽  
Three Dimensional ◽  
Helical Ct ◽  
Three Dimensional Imaging

Three-Dimensional Imaging of Liver Tumors Using Helical CT During Intravenous Injection of Contrast Medium

1999 ◽  
Vol 23 (3) ◽  
pp. 435-440 ◽  
Author(s):  
Masafumi Uchida ◽  
Masatoshi Ishibashi ◽  
Toshi Abe ◽  
Hiroshi Nishimura ◽  
Naofumi Hayabuchi
Keyword(s):  
Contrast Medium ◽  
Intravenous Injection ◽  
Liver Tumors ◽  
Three Dimensional ◽  
Helical Ct ◽  
Three Dimensional Imaging

scholarly journals Variations in Cochlear Size of Cochlear Implant Candidates

2018 ◽  
Vol 23 (02) ◽  
pp. 184-190 ◽  
Author(s):  
Devira Zahara ◽  
Rima Diana Dewi ◽  
Askaroellah Aboet ◽  
Fikri Mirza Putranto ◽  
Netty Delvrita Lubis ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Temporal Bone ◽  
Three Dimensional ◽  
Mathematical Function ◽  
Electrode Arrays ◽  
High Resolution Computed Tomography ◽  
Bone Measurement ◽  
Length Width ◽  
Hrct Temporal Bone ◽  
Half Turn

Introduction The cochlear anatomy varies in each individual, and that has an impact on decisions regarding the insertion of electrodes. The measurement of the cochlear size is the routine examination required to choose the proper cochlear implant (CI) electrodes. Objective To acquire normative data on the size of the cochlea (length, width, height, scala timpani [ST] height, cochlear duct length [CDL]) of CI candidates in Medan, Indonesia. Methods This descriptive study was conducted based on high-resolution computed tomography (HRCT) temporal bone data and on HRCT temporal data manipulated to reconstruct three-dimensional (3D) multiplanar images with OsiriX MD DICOM Viewer version 9.5.1 (Pixmeo SARL, Bernex, Geneva, Switzerland) viewer of 18 patients (36 ears) who were CI candidates in Medan, Indonesia, in order to determine cochlear length (A), cochlear width, cochlear height, ST height and CDL, calculated through a simple mathematical function. Results The average cochlear length (A) was 8.75 mm (standard deviation [SD] = 0.31 mm); the average cochlear width was 6.53 mm (SD = 0.35 mm); the average cochlear height was 3.26 mm (SD = 0.24 mm) and the average ST height at the basal cochlea was 1.00 mm (SD = 0.1 mm); and 0.71 mm (SD = 0.1 mm) at the half turn of cochlea. The average total CDL was 32.45 mm (SD = 1.31 mm; range: 30.01–34.83 mm). Conclusion The cochlear size varies in each individual; therefore, the temporal bone measurement of CI candidates using HRCT is essential: for the selection of suitable implant electrodes; to minimize cochlear damages at the insertion of the electrode arrays; and to maximize the hearing improvements.

Fibrous Dysplasia of the Temporal Bone: Assessment by Three-Dimensional Helical CT Imaging

2005 ◽  
Vol 133 (4) ◽  
pp. 643-643 ◽  
Author(s):  
Shotaro Karino ◽  
Tatsuya Yamasoba ◽  
Akinori Kashio ◽  
Kimitaka Kaga
Keyword(s):  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Three Dimensional ◽  
Helical Ct ◽  
Ct Imaging ◽  
Bone Assessment

scholarly journals Surgical anatomy of temporal bone using three-dimensional imaging techniques

2014 ◽  
Vol 24 (1) ◽  
pp. 39-43
Author(s):  
Shin Kariya ◽  
Tomoo Onoda ◽  
Mitsuhiro Okano ◽  
Kazunori Nishizaki
Keyword(s):  
Temporal Bone ◽  
Imaging Techniques ◽  
Three Dimensional ◽  
Surgical Anatomy ◽  
Three Dimensional Imaging

Three-Dimensional Imaging of Laryngeal Cancers Using High-Speed Helical CT Scanning

ORL ◽  
1998 ◽  
Vol 60 (2) ◽  
pp. 103-107 ◽  
Author(s):  
Atsushi Sakakura ◽  
Yuzo Yamamoto ◽  
Yasuo Uesugi ◽  
Ken Nakai ◽  
Hiroshi Takenaka ◽  
...  
Keyword(s):  
High Speed ◽  
Three Dimensional ◽  
Helical Ct ◽  
Ct Scanning ◽  
Three Dimensional Imaging

scholarly journals Impact of anatomical variations on insertion forces

2018 ◽  
Vol 4 (1) ◽  
pp. 509-512
Author(s):  
Silke Hügl ◽  
Tobias Blum ◽  
Thomas Lenarz ◽  
Omid Majdani ◽  
Thomas S. Rau
Keyword(s):  
Cochlear Implant ◽  
Temporal Bone ◽  
Three Dimensional ◽  
Anatomical Variations ◽  
Micro Computed Tomography ◽  
Insertion Force ◽  
Insertion Depth ◽  
Basal Turn ◽  
Human Temporal Bone ◽  
Custom Made

AbstractThe choice of a cochlear implant electrode carrier for the individual patient is influenced by cochlear size, as this parameter has an impact on the risk of scala dislocations. Therefore, size and morphology should be represented in artificial cochlear models too, since these are generally used for insertion studies evaluating newly developed cochlear implant electrode carriers and insertion techniques, before human temporal bone studies are applied for. Within this study custom-made electrode carrier test samples were inserted into nine artificial cochlear models of different shape. To fabricate them, four human temporal bone samples have been processed by a serial cross-sectioning technique; the other four samples have been scanned with micro computed tomography. The cochlea was segmented on this data using rotating, midmodiolar slice planes, followed by the generation of a three-dimensional digital model, which finally was projected on a plane and 2D models were milled out of PTFE. The ratios of length to width of the cochlear basal turn of our samples were found to be within previously reported range. For comparative reasons a model used in previous studies was included in this study too. The maximal insertion forces per cochlear model followed a normal distribution. The insertion depth at initial insertion force increase is correlated to the length of cochlear basal turn. Using the here presented cochlear models with varying anatomical measures may help to increase the clinical relevance of insertion studies in artificial cochlear models.

Three-Dimensional Exoscopic Temporal Bone Resections for Advanced Head and Neck Cancer

2020 ◽  
Author(s):  
Mallory J. Raymond ◽  
Roberto M. Soriano ◽  
Ryan Belcher ◽  
C. Arturo Solares
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Temporal Bone ◽  
Neck Cancer ◽  
Three Dimensional ◽  
Advanced Head
Sign in / Sign up

Export Citation Format

Share Document