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題 名 | 初期甲狀腺放射性碘攝取率之研究=A Study of Early Radioiodide Thyroid Uptake |
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作 者 | 余明德; 謝登山; 劉武龍; 彭敬成; 黃文盛; | 書刊名 | 核子醫學雜誌 |
卷 期 | 14:3 2001.09[民90.09] |
頁 次 | 頁155-160 |
分類號 | 415.931 |
關鍵詞 | 放射性碘甲狀腺吸收; 動力學; 碘-131; Radioiodide thyroid uptake; Kinetic; Iodide-131; |
語 文 | 中文(Chinese) |
中文摘要 | 背景:放射性碘-131應用於診斷與治療甲狀腺功能亢進症及甲狀腺癌,目前是首選方法。正確甲狀腺放射性碘取率制對於放射性診斷或治療相當重要。臨床常用的甲狀腺放射性碘攝取率為服用放射性碘後24小時的測定值。本實驗旨在評估1小時量測?是否可用以預測24小時攝取率。 方法:20隻Sprague-Dawley(SD)鼠用以檢視放射性部-131甲狀腺動態生物攝取率,確認最備佳甲狀腺攝取率時間。另由20位疑似甲狀腺疾病患者測得1小時及24小時放射性碘-131甲狀腺攝取率。以線性迴歸法分析1小時與24小時甲狀腺放射性碘攝取率的關係。 結果:由SD鼠實驗顯示在6小時頸部放射性碘攝取率為16.6%,而帢際甲狀腺放射性碘攝取於為5.1%,所以6小時所測到頸部攝又是甲狀腺加上周邊背景組織放活性,而在12、24及48小時測得頸部攝取率/實際甲狀腺攝取率分別為13.4%/12.5%、10.1%/10.5%及8.8%/9.9%,所以24小時所測到頸部攝取可視為實際甲狀腺攝取。線性迴歸分析病患1小時與24小時甲狀腺放射性碘攝取率關係式為y=20.0+0.518x,Pearson's相關係數r=0.347,其線性無法為統計學接受。 結論:1小時甲狀腺放射性碘攝取率測值不適用於預測24小時攝取率。 |
英文摘要 | Objective: Radioactive sodium iodide has long been the drug of choice for therapy and important to aid in diagnosis in patients with thyroid cancer and hyperthyroidism. The radioiodine uptake study is a useful diagnostic test for determination of the disease of the thyroid gland. Although the 24-h radioiodine uptake is used commonly, we evaluated the feasibility to predict 24-h thyroid uptake with 1-h uptake data. Methods: The radioiodide uptake and retention kinetics were studied in 20 SD rats to determine the oputimum measurement time. Thyroid uptakes of twenty patients with suspected thyroid disorders were determined at 1 h and 24 h, respectively, after administration of radioiodide capsules. The data between 1-h and 24-h uptakes were analyzed by linear regression method. Results: In the SD rats, the neck uptake was 16.6% at 6 h after iodine-131 administration however, the real thyroid uptake was only 8.1% at the same time. By 12, 24 and 48 h, the neck uptake/real thyroid uptake was 13.4/12.5, regression formula between 1-h and 24-h thyroid radioiodine uptakes of 20 patients was y=20.0+0.518x with a Pearson's coefficient (r) of 0.347, which indicates a statistically unacceptable linearity of regression. Conclusion: The thyroid uptake determined at 1h after radioiodine administration may not be appropriate to predict 24-h thyroid uptake data. |
本系統中英文摘要資訊取自各篇刊載內容。