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頁籤選單縮合
題 名 | Optimal Contrast Medium Protocol in Computed Tomography during Arterial Portography for Detection of Hepatoma=利用動脈化門靜脈攝影--CT偵查肝癌時的適當造影劑劑量 |
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作 者 | 鄭慶明; 孔慶惠; 王永成; 吳昭瑩; 李紋瑜; 范君凱; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 26:1 2001.02[民90.02] |
頁 次 | 頁1-7 |
分類號 | 415.536 |
關鍵詞 | 電腦斷層攝影; 門靜脈攝影; 造影劑; 肝癌; Computed tomography; Portography; Contrast media; Hepatoma; |
語 文 | 英文(English) |
中文摘要 | 電腦斷層動脈化門靜脈攝影(CTAP)的高敏感度,使它自從被引用之後,就成為對原發性或繼發性惡性肝臟腫瘤作手術前治療計劃的重要評估方法。在過去數年間的多篇報告中,各自採用不同的造影劑劑量和注射速率。本研究的主要目的在評估CTAP中最適當造影劑用法,以設定探查肝臟腫瘤的合理例行CTAP步驟。在使用濃度分別為300 mgl/ml、225 mgl/ml及150 mgl/ml的三組患者中,對腫瘤的整體偵查敏感度分別為91%、92%及93%。對這三組患者的腫瘤偵查敏感度的差異,在統計學上並沒有意義。然而,在300 mgl/ml及225 mgl/ml兩組患者的腫瘤與肝臟實質之間的分界,比150 mgl/ml組更為明確;而225 mgl/ml組的門靜脈灌流不均勻度又比300 mgl/ml組要少。利用80 ml從300 mgl/ml濃度稀釋的225 mgl/ml造影劑,以2 ml/sec的速率注射,就能獲得可偵查肝臟腫瘤的理想CTAP。因此,本研究認為可比大多數文獻採用較少量的中濃度造影劑,並且以較低速率注射,就能得到可靠的CTAP。 |
英文摘要 | Due to the high sensitivity of computed tomography during arterial portography (CTAP), it has become an important method used in the preoperative planning for the treatment of patients with primary or secondary malignant neoplasms of the liver According to different reports, various doses of contrast material and rates of injection have been used over the past several years. For setting a rational routine protocol, we carried out this study to evaluate the optimal concentration of contrast media used in CTAP for detection of hepatic tumors. The overall sensitivities of tumor detection were 91%, 92% and 93 % among three groups using 300 mgI/ml, 225 mgI/ml, and 150 mgI/ml, respectively. There were no statistically significant differences in the tumor detection rate among the groups. However, lesions were better demarcated from the liver parenchyma in 300 mgI/ml and 225 mgI/ml groups than 150 mgI/ml group. There was also more homogeneity of portal perfusion in the 225 mgI/ml groups than the 300mgI/ml group. According to our study results, 80 ml of diluted contrast medium with the concentration of 225 mgI/ml injected at a rate of 2 ml/sec was satisfactory for the detection of hepatic tumors using CTAP. In conclusion, CTAP can be done confidently using slower injection rates and smaller amounts of contrast medium with intermediate concentrations for detection of hepatomas than the protocols reported in the literature. |
本系統中英文摘要資訊取自各篇刊載內容。