Japanese
Title転移性骨腫瘍放射線治療症例の骨シンチグラフィとX線CTスキャンによる経過観察成績
Subtitle原著
Authors坂田恒彦*, 前田裕子*, 岡橋進*, 山崎紘一*, 末澤慶昭*, 河合武司*, 新井正典*, 赤木弘昭*
Authors(kana)
Organization*大阪医科大学放射線医学教室
Journal核医学
Volume17
Number5
Page565-573
Year/Month1980/6
Article原著
Publisher日本核医学会
Abstract「要旨」転移性骨腫瘍放射線治療症例22例28病変の骨シンチグラフィとX線CTスキャンによる経過観察成績を検討した. 予定線量に達した病巣では, 骨シンチグラム上異常集積の低下ないし不変を示したものが多く, 照射中止例では一定傾向は認めなかった. X線CTスキャンによるCa量は, 一時休止後予定線量に達した病巣で増量傾向を認めたが, 順調に予定線量に達した病巣と照射中止例では一定しなかった. X線CT像上, 融解型を示した病巣部は, 骨シンチグラム所見の変化は一定しなかったが, X線CTスキャンでは, 6例中5例がCa量の減少傾向を示した. また, X線CTスキャンによるCa量の変化と骨シンチグラム所見の変化とは, 必ずしも相関しなかったが, 骨シンチグラム所見上, 集積が低下した病巣では, Ca量が増量し, 集積が増強した病巣では, Ca量が減少する傾向が認められた.
Practice臨床医学：一般
Keywordsmetastatic bone tumor, radiotherapy, bone scintigraphy, computed tomography
English
TitleChanges of Bone Scintigraphy and CT Scan in Metastatic Bone Tumors after Radiotherapy with Co-60
SubtitleOriginal Articles
AuthorsTsunehiko SAKATA, Koichi YAMASAKI, Takeshi KAWAI, Hiroko MAEDA, Susumu OKAHASHI, Yoshiaki SUEZAWA, Masanori ARAI, Hiroaki AKAGI
Authors(kana)
OrganizationDepartment of Radiology, Osaka Medical College
JournalThe Japanese Journal of nuclear medicine
Volume17
Number5
Page565-573
Year/Month1980/6
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary] Changes of bone scintigraphy with Tc-99m-MDP (methylene diphosphonate) and CT scan after irradiation were discussed with 28 lesions in 22 cases of metastatic bone tumor. Methods: 1) Co-60 irradiation: 200 rad/day × 5 times in a week and 5,000-6,000 rad in total dose were prearrenged for radiotherapy. 2) Bone scintigraphy was taken by PHO/GAMMA LFOV 3 hours after the injection of Tc-99m-MDP with 10 mCi. 3) CT scan was performed by EMI-scanner CT 5005/12 and Ca concentration was calculated from EMI units. Results: 1) In bone scintigraphy, many of lesions treated with prearranged dose in total showed decreased or unchanged accumulation after irradiation, but in Ca concentration by CT, the lesions treated with a break showed increased concentration and the lesions continuously treated or given up showed no tendency. 2) The osteolytic lesions in CT images had no tendency to change their findings of bone scintigraphy but their Ca concentration measured by CT image was decreased after irradiation. 3) Changes of bone scintigraphy and CT image were not shown a clear correlation but there was a tendency as follows: In cases of decreased abnormal accumulation in postirradiative bone scintigraphy, Ca concentration of the lesion was increased, and in cases with increased accumulation, Ca concentration was decreased.
PracticeClinical medicine
Keywordsmetastatic bone tumor, radiotherapy, bone scintigraphy, computed tomography

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