Japanese |
Title | 健常者におけるDual Photon Absorptiometryによる第3腰椎のBone Mineral Densityの定量 |
Subtitle | 短報 |
Authors | 福永仁夫*, 大塚信昭*, 小野志磨人*, 永井清久*, 光森通英*, 村中明*, 古川高子*, 友光達志*, 柳元真一*, 森田陸司* |
Authors(kana) | |
Organization | *川崎医科大学核医学科 |
Journal | 核医学 |
Volume | 24 |
Number | 4 |
Page | 469-473 |
Year/Month | 1987/4 |
Article | 報告 |
Publisher | 日本核医学会 |
Abstract | 「I. 緒言」腰椎などの躯幹骨の骨塩量を非侵襲的にかつ正確に定量することは, 代謝性骨疾患の診断や経過観察に重要である. 現在, 本邦では腰椎のComputed Tomography(CT)時にスタンダードとして種々の濃度の骨塩等価物質(Bone Mineral Equivalent Material, BMEM)を含むファントムを同時にスキャンし, CT番号から, 腰椎海綿骨に相当するBMEM濃度を求める方法(Quantitative CT, QCT)が一般的に行われている. しかし, この海綿骨のみを対象としたQCT法は, 時にアーチファクトを生じたり, 被曝線量が比較的大きいことなどの欠点が挙げられている. 一方, 2つの異なったエネルギーの光子を用いるDual Photon Absorptiometry(DPA)法による測定は, これらの欠点を補い, しかも海綿骨のみならず皮質骨をも測定対象としているので, DPAによる測定は臨床上大いに期待された. |
Practice | 臨床医学:一般 |
Keywords | Dual photon absorptiometry, Bone mineral density, Lumbar vertebra. |
English |
Title | Quantification of Bone Mineral Density at 3rd Lumbar Vertebra by Dual Photon Absorptiometry in Healthy Subjects |
Subtitle | |
Authors | Masao FUKUNAGA, Nobuaki OTSUKA, Shimato ONO, Kiyohisa NAGAI, Michihide MITSUMORI, Akira MURANAKA, Takako FURUKAWA, Tatsushi TOMOMITSU, Shinichi YANAGIMOTO, Rikushi MORITA |
Authors(kana) | |
Organization | Department of Nuclear Medicine, Kawasaki Medical School |
Journal | The Japanese Journal of nuclear medicine |
Volume | 24 |
Number | 4 |
Page | 469-473 |
Year/Month | 1987/4 |
Article | Report |
Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
Abstract | [Summary]Bone mineral density (BMD), by dual photon absorptiometry (DPA), at the 3rd lumbar vertebra (L3) was measured in healthy subjects (37 males and 49 females). BMD values on 1 slice of vertebral body (L3), employed as a routine, showed good correlation to the mean BMD values, calculated from multiple slices of whole L3. BMD values, by DPA, at L3 were better correlation to concentrations of bone mineral equivalent material, by quantitative computed tomography, at the trabecular bone of L3 than to BMD values, by single photon absorptiometry, at distal radius (predominantly cortical bone). Furthermore, by this DPA technique, bone diminution at L3 with aging was shown in both sexes. These data suggest that measurements of BMD by DPA is greatly useful for evaluating the spinal bone mineral content. |
Practice | Clinical medicine |
Keywords | Dual photon absorptiometry, Bone mineral density, Lumbar vertebra. |