Title:
骨の変形を特徴付ける幾何学的要素を3D画像から自動的に決定する方法およびシステム
Document Type and Number:
Japanese Patent JP2013529970
Kind Code:
A
Abstract:
The invention relates to a method for automatically determining, on a bone comprising a head portion contiguous to a neck portion, parameters for characterizing a bump deformation on the head-neck junction of the bone from acquired 3D medical image, the method comprising the following steps: i) constructing a 3D surface model of the bone; ii) fitting a sphere on the spherical portion of the head of the bone; iii) determining a neck axis characterizing the neck portion of the bone; iv) determining from the fitted sphere and the neck axis, a clock face referential on the head of the bone rotating around the neck axis; v) determining a 3D curve on the 3D surface model characterizing the head-neck junction of the bone; vi) determining, from the 3D curve, the summit of the bump deformation of the head-neck junction of the bone; vii) determining, from said summit of the bump deformation, first and a second parameters (α3D, iMax) characterizing the maximum bump deformation of the head-neck junction of the bone.
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Inventors:
Laurence Shavana
Stefan Lavalley
Jerome Tonetti
Thomas Bird
Brian Talmadge Kelly
Christopher Larson
Stefan Lavalley
Jerome Tonetti
Thomas Bird
Brian Talmadge Kelly
Christopher Larson
Application Number:
JP2013514802A
Publication Date:
July 25, 2013
Filing Date:
June 16, 2011
Export Citation:
Assignee:
A-to-surgical
International Classes:
A61B5/00; A61B6/03; G06T7/60
Domestic Patent References:
| JP2002509751A | 2002-04-02 | |||
| JP2002509751A | 2002-04-02 |
Foreign References:
| US20080312663A1 | 2008-12-18 | |||
| US20080312663A1 | 2008-12-18 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro