Abstract:
PURPOSE:Minimally invasive cochlear implantation is a surgical technique which requires drilling a canal from the mastoid surface toward the basal turn of the cochlea. The choice of an appropriate drilling strategy is hypothesized to have significant influence on the achievable targeting accuracy. Therefore, a method is presented to analyze the contribution of the drilling process and drilling tool to the targeting error isolated from other error sources. METHODS:The experimental setup to evaluate the borehole accuracy comprises a drill handpiece attached to a linear slide as well as a highly accurate coordinate measuring machine (CMM). Based on the specific requirements of the minimally invasive cochlear access, three drilling strategies, mainly characterized by different drill tools, are derived. The strategies are evaluated by drilling into synthetic temporal bone substitutes containing air-filled cavities to simulate mastoid cells. Deviations from the desired drill trajectories are determined based on measurements using the CMM. RESULTS:Using the experimental setup, a total of 144 holes were drilled for accuracy evaluation. Errors resulting from the drilling process depend on the specific geometry of the tool as well as the angle at which the drill contacts the bone surface. Furthermore, there is a risk of the drill bit deflecting due to synthetic mastoid cells. CONCLUSIONS:A single-flute gun drill combined with a pilot drill of the same diameter provided the best results for simulated minimally invasive cochlear implantation, based on an experimental method that may be used for testing further drilling process improvements.
journal_name
Int J Comput Assist Radiol Surgauthors
Kobler JP,Schoppe M,Lexow GJ,Rau TS,Majdani O,Kahrs LA,Ortmaier Tdoi
10.1007/s11548-014-0997-9subject
Has Abstractpub_date
2014-11-01 00:00:00pages
1033-43issue
6eissn
1861-6410issn
1861-6429pii
10.1007/s11548-014-0997-9journal_volume
9pub_type
杂志文章abstract:PURPOSE:Surgical phase recognition using sensor data is challenging due to high variation in patient anatomy and surgeon-specific operating styles. Segmenting surgical procedures into constituent phases is of significant utility for resident training, education, self-review, and context-aware operating room technologie...
journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
doi:10.1007/s11548-016-1409-0
更新日期:2016-06-01 00:00:00
abstract:PURPOSE:Statistical shape and appearance models play an important role in reducing the segmentation processing time of a vertebra and in improving results for 3D model development. Here, we describe the different steps in generating a statistical shape model (SSM) of the second cervical vertebra (C2) and provide the sh...
journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
doi:10.1007/s11548-014-1121-x
更新日期:2015-07-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
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更新日期:2018-01-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
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更新日期:2020-12-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
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更新日期:2017-07-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
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更新日期:2014-05-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
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更新日期:2014-07-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
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更新日期:2020-05-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
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更新日期:2009-11-01 00:00:00
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更新日期:2011-11-01 00:00:00
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更新日期:2017-06-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 已发布勘误
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更新日期:2020-03-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
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journal_title:International journal of computer assisted radiology and surgery
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更新日期:2015-05-01 00:00:00
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更新日期:2018-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2014-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:2018-07-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
doi:10.1007/s11548-009-0383-1
更新日期:2010-01-01 00:00:00
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journal_title:International journal of computer assisted radiology and surgery
pub_type: 杂志文章
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更新日期:2010-09-01 00:00:00