Albee 發問時間: 社會與文化語言 · 8 年前

煩請英文翻譯(英翻中) 20點

The lay media and opponents of screening have emphasized the risk for cancer from medical imaging studies but have routinely failed to quantify real risk. The radiation dose associated with CT screening of the chest is generally less than 2 mSv, whereas the dose of standard non–contrast-enhanced chest CT is 7 mSv .Investigations of the NLST have estimated that the risk for radiation exposure from LDCT screening in 55-year-old smokers is 1 to 3 deaths from lung cancer per 10 000 persons screened and 0.3 new cases of breast cancer per 10 000 women screened. The cumulative mortality reduction in the NLST was 30 cases of lung cancer per 10 000 persons screened. The benefit–risk ratio clearly demonstrates benefit. The American College of Radiology and the Radiological Society of North America have rated the additional lifetime risk for fatal cancer from LDCT as “very low” (1 per 10 000 to 1 per 100 000 persons) . If results from the initial LDCT are negative, should this 63-year-old former smoker have additional yearly LDCT screening, and if so, for how long? The NLST participants underwent 3 yearly CTs. The 3 rounds of screening did not demonstrate a substantial decrease in the cases of lung cancer per year (270, 168, and 211, respectively). An additional 367 cases of lung cancer were detected in the CT group in the 5-year follow-up period after the initial 3 years of screening. The cumulative rate of new cases of and deaths from lung cancer did not decrease during the 8 years of observation after participants were randomly assigned to the CT or chest radiography screening group . Therefore, the NLST data support yearly screening for at least 3 to 5 years; perhaps by that time, new information will be available to guide decisions on the length and frequency of screening. 只要文意順就好 請別用google翻譯 文意很不順謝謝了^^

2 個解答

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  • 阿昌
    Lv 7
    8 年前
    最佳解答

    外行媒體和篩選對手都強調從醫療成像研究癌症的風險,但經常沒有真正的風險量化。胸部CT篩查的輻射劑量,一般小於2毫希沃特,而標準的非對比增強胸部CT的劑量為7毫希。

    調查估計,從55歲的吸煙者篩查輻射暴露的風險是1至3死於肺癌,每10 000篩選的人每10萬篩選婦女乳腺癌新發病例和0.3。在累計降低死亡率為每10萬篩選人肺癌30例。的利益風險比,清楚地表明了效益。美國大學的放射學和北美放射學會評為“非常低”的額外的一生致命的癌症風險(1每10萬至1100000人)。

    如果從最初的的結果是陰性的,這個63歲的前吸煙者應每年額外篩查,如果是這樣,多久? 參與者經歷了3個年度的。 3輪篩選,並沒有表現出在每年的肺癌(270,168和211,分別)的案件大幅下降。一個額外的367例肺癌的組在篩選後的最初3年,5年的跟踪隨訪期間發現。肺癌新發病例和死亡的累積率沒有下降,在8年的觀察後,參與者被隨機分配到或胸片檢查組。因此,數據支持至少3至5年,每年篩選,也許到那個時候,新的信息將可用來指導篩選的長度和頻率的決定。復原編輯

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  • 8 年前

    The lay media and opponents of screening have emphasized the risk for cancer from medical imaging studies but have routinely failed to quantify real risk.

    外行的媒體及反對者總是強調醫療照相的致癌危險性,卻屢屢不曾提出數據來

    佐證

    The radiation dose associated with CT screening of the chest is generally less than 2 mSv, whereas the dose of standard non–contrast-enhanced chest CT is 7 mSv .

    胸膛CT照射幅射性通常少於2 mSv,而正常的非增強對比性的胸膛CT照射是7 mSv

    Investigations of the NLST have estimated that the risk for radiation exposure from LDCT screening in 55-year-old smokers is 1 to 3 deaths from lung cancer per 10 000 persons screened and 0.3 new cases of breast cancer per 10 000 women screened.

    NLST調查估算的LDCT(低度CT)照射的幅射線危險度,在55歲吸煙群中,是參與照射者一萬人中有一至三人死亡;及女性參與者一萬人中有0.3個新患病例

    以上供你參考此文的主題性

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