【摘要】：通過(guò)對(duì)不同距離與屏蔽條件下腫瘤放射性粒子植入后患者的放射性檢測(cè),實(shí)現(xiàn)輻射防護(hù)個(gè)體化與最優(yōu)化。隨機(jī)選擇35例北京大學(xué)深圳醫(yī)院微創(chuàng)介入病區(qū)并接受125I放射性粒子植入的患者,植入術(shù)后2h內(nèi)使用x-γ射線檢測(cè)儀在不同距離處檢測(cè)未屏蔽、0.25mmPb屏蔽、0.5mmPb屏蔽條件下患者的劑量當(dāng)量率,采用統(tǒng)計(jì)軟件包SPSS19.0對(duì)結(jié)果進(jìn)行t檢驗(yàn)分析,并按照病區(qū)工作人員平均每人每日接觸患者2h計(jì)算相應(yīng)的年劑量當(dāng)量。未屏蔽時(shí),0.5m處工作人員所受的年劑量當(dāng)量小于放射工作人員限值20mSv,2m處接近公眾限值1mSv,4m處相當(dāng)于病室內(nèi)本底;在0.25mmPb屏蔽下,盡管零距離處35位患者的平均年劑量當(dāng)量小于公眾限值,但其中有6位患者的年劑量當(dāng)量大于公眾限值;在0.5mmPb屏蔽下,零距離處所有患者的年劑量當(dāng)量已接近本底。結(jié)果表明,125I粒子植入后病區(qū)工作人員的工作時(shí)間、距離、屏蔽防護(hù)中,重點(diǎn)要做好個(gè)體化的屏蔽防護(hù)。0.25mmPb的鉛膠布是最常使用的屏蔽物,對(duì)于粒子植入數(shù)量較多或植入部位表淺的患者必要時(shí)也應(yīng)使用0.5mmPb的鉛膠布屏蔽,以實(shí)現(xiàn)輻射防護(hù)個(gè)體化和最優(yōu)化。
[Abstract]:In order to realize the individualization and optimization of radiation protection, the radioactivity of patients implanted with tumor radioactive particles at different distances and shielding conditions was detected. Thirty-five patients who received 125I radioactive seed implantation in the minimally invasive intervention area of Peking University Shenzhen Hospital were randomly selected. Within 2 hours after implantation, unshielded and 0.25mmPb shielding were performed at different distances by using x- 緯 -ray detector. Under the condition of 0.5mmPb shielding, the patient dose equivalent rate was analyzed by the statistical software package SPSS19.0, and the corresponding annual dose equivalent was calculated according to the average daily contact with the patient for 2 hours per worker in the ward. When unshielded, the annual dose equivalent at 0.5m was less than the radiation worker's limit of 20mSv-2m, which was close to the public limit of 1mSv-4m, which was equivalent to the background in the hospital room. Under 0.25mmPb shielding, although the average annual dose equivalent of 35 patients at zero distance was less than the public limit, six patients had annual dose equivalent greater than the public limit. Under 0.5mmPb shielding, the annual dose equivalent of all patients at zero distance is close to the background. The results showed that in the working time, distance and shielding protection of the workers in the ward after 125I seed implantation, the emphasis should be placed on the individualized shielding protection. The lead tape of 0.25mmPb is the most commonly used shield. In order to realize the individualization and optimization of radiation protection, 0.5mmPb lead blanket shield should also be used for the patients with a large number of particles or shallow implant sites.
【作者單位】： 北京大學(xué)深圳醫(yī)院核醫(yī)學(xué)科;北京大學(xué)深圳醫(yī)院微創(chuàng)介入科;
【基金】：深圳市科技計(jì)劃項(xiàng)目(201302066)
【分類(lèi)號(hào)】：R730.55

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 申靜;范超云;;醫(yī)護(hù)人員對(duì)~(125)I粒子植入輻射防護(hù)現(xiàn)狀調(diào)查與防護(hù)對(duì)策[J];護(hù)理實(shí)踐與研究;2014年01期

2 張樹(shù)清;龔沈初;王天樂(lè);沈云霞;崔磊;;兔顱腦低劑量CT掃描的圖像質(zhì)量評(píng)價(jià)及輻射防護(hù)意義[J];蘇州大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2008年02期

3 楊淑英;任媛;郭晉綱;張茜;;~(131)I治療分化型甲狀腺癌的輻射防護(hù)及相關(guān)護(hù)理問(wèn)題分析[J];中國(guó)輻射衛(wèi)生;2014年03期

4 廖洪春;華彩群;董云;;核醫(yī)學(xué)護(hù)士輻射防護(hù)現(xiàn)狀調(diào)查和對(duì)策[J];護(hù)理實(shí)踐與研究;2013年11期

5 陳宇導(dǎo);張峰;吳春興;袁海娟;謝良駿;;核醫(yī)學(xué)科核素治療病房的輻射防護(hù)及管理[J];中華護(hù)理雜志;2014年05期

6 李偉;張經(jīng)建;馬振申;李?lèi)?ài)銀;王宏偉;;耳部低劑量CT掃描的輻射防護(hù)及診斷價(jià)值[J];中國(guó)輻射衛(wèi)生;2006年02期

7 張燕;郭昌宗;;理療病人的護(hù)理體會(huì)[J];中外醫(yī)療;2011年33期

8 李桂云;北京市醫(yī)院核醫(yī)學(xué)科的發(fā)展與輻射防護(hù)概況[J];中國(guó)輻射衛(wèi)生;2000年04期

9 鄭雋;;甲狀腺癌術(shù)后患者~(131)Ⅰ治療隔離期輻射防護(hù)的護(hù)理體會(huì)[J];護(hù)士進(jìn)修雜志;2010年21期

10 鄭雋;;甲狀腺癌術(shù)后患者~(131)I治療期間輻射防護(hù)的管理[J];護(hù)士進(jìn)修雜志;2012年08期

相關(guān)會(huì)議論文 前3條

1 李發(fā)財(cái);王淑艷;時(shí)美娟;;~(125)I粒子治療頜面腫瘤輻射防護(hù)的護(hù)理實(shí)踐與研究[A];吉林省護(hù)理學(xué)會(huì)五官科第十四次學(xué)術(shù)會(huì)議暨口腔科專(zhuān)科技術(shù)培訓(xùn)班論文匯編[C];2011年

2 王斌;周珉;;X線檢查中兒童的輻射防護(hù)[A];2003年全國(guó)醫(yī)學(xué)影像技術(shù)學(xué)術(shù)會(huì)議論文匯編[C];2003年

3 史卓;宋俊峰;;床旁CR攝影輻射防護(hù)與攝影參數(shù)優(yōu)化[A];2010中華醫(yī)學(xué)會(huì)影像技術(shù)分會(huì)第十八次全國(guó)學(xué)術(shù)大會(huì)論文集[C];2010年

，

本文編號(hào)：2313377