Automated Segmentation of Acetabular Cartilage in MR images of the Hip(Joint Session 1)

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概要

• 論文の詳細を見る

• In the orthopedic field, quantitative analysis of the hip joint cartilages is of clinical importance. In this regard, segmentation of acetabular cartilage is required for further corresponding quantifications such as cartilage thickness map estimation and/or generic modeling of a cartilage shape. To date, MRI is considered as one of the most effective choices for diagnosis of cartilage diseases. In this research, we have developed a highly automated technique for segmentation of acetabular cartilages in volumetric MR images acquired by fat suppressed 3D fast spoiled gradient echo (SPGR) sequence. The multi-step approach consists of the following steps : (1) Automatic selection of the volume of interest by estimating the center of a sphere that approximates the femoral head using a Hough transform and anatomical knowledge of a femoral head size; (2) Automatic segmentation of the acetabulum and femoral head by adaptive thresholding and 3D morphological operations; (3) Automatic segmentation of a rough hip joint space utilizing anatomical constraint of the hip joint shape with respect to acetabulum and femoral head; (4) Accurate segmentation of the hip joint space by estimated femoral head center and enhanced cartilage regions utilizing first order 3D directional derivatives along radial directions originating from the sphere center.; (5) Automatic segmentation of the acetabular cartilage by localization of cartilage boundaries along the normal lines associated with cartilage initial boundaries and employing a B-Spline curve fitting snake. The developed techniques require no operator intervention from the input of the original MR data to the final segmentation of the acetabular cartilage. The proposed method was successfully applied to 20 sets (1200 images) of actual in vivo hip MR data of ten cases.

• 社団法人電子情報通信学会の論文
• 2005-09-15

著者

• 山本 修司

  国立がんセンター がん予防・検診研究センター

• SATO Yoshinobu

  Division of Image Analysis, Osaka University Graduate School of Medicine

• TAMURA Shinichi

  Division of Image Analysis, Osaka University Graduate School of Medicine

• YOSHIKAWA Hideki

  Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine

• 中村 仁信

  大阪医科大学 放射線医学教室

• 中村 仁信

  りんくう総合医療センター市立泉佐野病院 放射線科

• NAKAMURA Hironobu

  Department of Radiology, Osaka University Graduate School of Medicine

• Sato Yoshinobu

  Division Of Image Analysis Graduate School Of Medicine Osaka University

• Tamura S

  Graduate School Of Medicine Osaka University

• Yoshikawa H

  Division Of Cardiovascular Surgery Orthopedics Osaka University Graduate School Of Medicine

• Hiraoka Nobuaki

  Department Of Radiology Osaka University Graduate School Of Medicine

• Yokoyama H

  Department Of Rheumatology And Hematology Tohoku University Hospital

• Zoroofi Reza

  Control and Intelligent Processing Center of Excellence, School of Electrical and Computer Engineeri

• NISHII Takashi

  Department of Orthopedic Surgery, Osaka University, Graduate School of Medicine

• TANAKA Hisashi

  Department of Radiology, Osaka University, Graduate School of Medicine

• Yamamoto Shuji

  Research Center For Cancer Prevention And Screening National Cancer Center

• 中村 仁信

  大阪大学医学部放射線科

• Nakamura Hironobu

  自治医科大学 内科学呼吸器内科学

• Nishii Takashi

  Department Of Orthopaedic Medical Engineering Osaka University Graduate School Of Medicine

• Zoroofi R

  Univ. Tehran Tehran Irn

• Zoroofi Reza

  Control And Intelligent Processing Center Of Excellence School Of Electrical And Computer Engineerin

• NAKANISHI Katsuyuki

  Graduate School of Medicine, Osaka University

• NAKANISHI Katsuyuki

  Department of Radiology Osaka University, Graduate School of Medicine

• SUGANO Nobuhiko

  Department of Orthopedic Surgery Osaka University, Graduate School of Medicine

• Naito Hiroaki

  大阪大学 医学系研究科臨床画像解析学

• Yoshikawa H

  Department Of Orthopaedics Osaka University Graduate School Of Medicine

• Tanaka Hisashi

  Department Of Radiology Graduate School Of Medicine Osaka University

• Zoroofi R

  Control And Intelligent Processing Center Of Excellence School Of Electrical And Computer Engineerin

• Sato Y

  Division Of Image Analysis Graduate School Of Medicine Osaka University

• Nakamura Hironobu

  Department Of Radiology

• Yoshikawa Hideki

  Department Of Orthopaedic Surgery Osaka University Graduate School Of Medicine

• Yamamoto Shuji

  大阪大学 医学系研究科保健学専攻

• Tanaka Hisashi

  Department Of Radiology Osaka University Graduate School Of Medicine

• Yoshikawa Hideki

  ガラシア病院 整形外科･リウマチ科

• Nakamura Nobuo

  東京慈恵会医科大学高次元医用画像工学研究所

• Sato Yoshinobu

  Division Of Digestive And General Surgery Department Of Surgery Niigata University Graduate School O

• Sugano Nobuhiko

  Department Of Orthopaedic Medical Engineering Osaka University Graduate School Of Medicine

• Nagano Hiroaki

  Department Of Surgery Graduate School Of Medicine Osaka University

• Nakanishi Katsuyuki

  Graduate School Of Medicine Osaka University

• Nakanishi Katsuyuki

  Department Of Radiology Osaka Medical Center For Cancer And Cardiovascular Diseases

• Yoshikawa H

  Department Of Orthopedic Surgery Osaka University School Of Medicine

• Nakamura Hironobu

  Department Of Radiology Osaka University School Of Medicine

• Tamura S

  Osaka Univ. Graduate School Of Medicine

• Takahashi Satoru

  Department Of Clinical Informative Imageology Osaka University Graduate School Of Medicine

• Tamura Shinichi

  Division Of Image Analysis Osaka University Graduate School Of Medicine

• Tamura Shinichi

  Division Of Functional Diagnostic Imaging Biomedical Research Center Osaka University Medical School

• Nakamura Hironobu

  Department Of Radiology Osaka University Medical School.

• Yoshikawa Hideki

  Department Of Applied Physics Osaka University

• Nakamura Hironobu

  Department Of Materials Science Faculty Of Engineering Ibaraki University

• Sato Yoshinobu

  Division Of Image Analysis Department Of Medical Engineering Osaka University Graduate School Of Med

• Nakanishi Katsuyuki

  Department Of Diagnostic Radiology Osaka Medical Center For Cancer And Cardiovascular Diseases

• Nagano Hiroaki

  Division Of Hepatobiliary And Pancreatic Medicine Department Of Internal Medicine Hyogo College Of Medicine

• Tanaka Hisashi

  Department Of Diagnostic Radiology University Of Rochester Medical Center

• Zoroof Reza

  Control and Intelligent Processing Center of Excellence, Faculty of Engineering University of Tehran

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