| Japanese |
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| Title | Bone Dynamic Study - 股関節領域におけるFactor解析法の検討 - |
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| Subtitle | 原著 |
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| Authors | 中島光太郎*, 外川比南子*, 石川演美*, 畠山六郎*, 秋貞雅祥*, 宮川俊平** |
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| Authors(kana) | |
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| Organization | *筑波大学附属病院放射線科, **整形外科 |
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| Journal | 核医学 |
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| Volume | 26 |
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| Number | 2 |
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| Page | 221-229 |
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| Year/Month | 1989/2 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」 股関節疾患の骨動態検査の評価に, Factor解析法を応用し, RI投与後早期の情報を骨factorと血管系factor, 軟部組織系factorに分離できた. 変形性股関節症に滑膜炎を合併した例では骨以外の軟部組織系factorでも異常集積が認められ, これは手術所見から滑膜の炎症を検出したものと考えられた. 大腿骨骨頭無腐性壊死例では, 4時間後の静態画像およびphase2画像(RI投与後5〜10分の加算画像)と比較して, 骨factor画像は臨床経過との相関がよかった. 本法は, 従来行っていた情報の時間的分離を行う3-phase骨スキャン解析法に比べ, 機能的分離を可能とした. また, 骨病変の検出や経過観察, 骨周囲臓器の病変との区別において, 静態画像や3-phase骨スキャン解析法から得られない情報が得られた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Factor analysis, Bone dynamic study, 3-phase bone analysis, Osteoarthritis, Aseptic necrosis |
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| English |
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| Title | Bone Dynamic Study - Evaluation for Factor Analysis of Hip Joint - |
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| Subtitle | |
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| Authors | Kotaro NAKAJIMA*, Hinako TOYAMA*, Nobuyoshi ISHIKAWA*, Rokuro HATAKEYAMA*, Masayoshi AKISADA*, Shunpei MIYAGAWA** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, Institute of Clinical Medicine, University of Tsukuba, **Department of Orthopedics, Institute of Clinical Medicine, University of Tsukuba |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 26 |
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| Number | 2 |
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| Page | 221-229 |
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| Year/Month | 1989/2 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Factor analysis was applied to dynamic study of Tc-99m MDP for the evaluation of hip joint disorders. Fifteen patients were examined; eight were normal, six were osteoarthritis in which one accompanied synovitis was included, and one was aseptic necrosis on the head of the femur. In normals, according to the Tc-99m MDP kinetics, three factor images and time-activity curves were obtained which were named as blood vessel, soft tissue, and bone factor images and curves. In the patient with osteoarthritis, increased accumulation of the hip joint was shown in bone factor image only. But in one patient, who took osteoarthritis with synovitis, marked accumulations of the Tc-99m MDP appeared not only on the bone factor image but also on the soft tissue. Operation revealed thickening synovial tissue around the hip joint, caused by inflammatory process. In follow-up studies of the patient with aseptic necrosis on the head of the left femur, excessive accumulations, which were seemed in his left hip joint on both bone and soft tissue factor images at first, were decreased respondently to the treatment of this lesion. In conclusion, the factor analysis was useful for differencial diagnosis of the hip joint disorders and observation of the clinical course of the hip joint disorders. |
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| Practice | Clinical medicine |
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| Keywords | Factor analysis, Bone dynamic study, 3-phase bone analysis, Osteoarthritis, Aseptic necrosis |
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