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一次PET-CT等于30年辐射?危言耸听!

2015-08-21 张俊祥 MedSci原创

PET-CT是医学影像设备中“高大上”的典型代表,将PET和CT机器合二为一,集PET和CT二者的优势于一体,将两种检查方法获得的同一断面人体图像进行“图像融合”,可同时观察人体的代谢功能状况及解剖形态结构,而且可以做全身大范围扫描。 PET-CT的出现无疑是医学影像学的又一次革命,不可否认它具有前所未有的成像功能和诊断潜能,但PET-CT也同时存在放射性同位素辐射和X线辐射的问题。

PET-CT是医学影像设备中“高大上”的典型代表,将PET和CT机器合二为一,集PET和CT二者的优势于一体,将两种检查方法获得的同一断面人体图像进行“图像融合”,可同时观察人体的代谢功能状况及解剖形态结构,而且可以做全身大范围扫描。

PET-CT的出现无疑是医学影像学的又一次革命,不可否认它具有前所未有的成像功能和诊断潜能,但PET-CT也同时存在放射性同位素辐射和X线辐射的问题。

网上流传《揭开PET-CT检查的辐射真相》一文中写道——“一次全身PET-CT检查相当于一个正常人一小时内接受30年的辐射剂量”,笔者认为这是危言耸听的说法。

我国《辐射防护规定》(GB 8703-88)中,辐射工作人员的年有效剂量当量限值为50mSv(毫西弗),一次性应急照射限值为100mSv,公众成员年有效剂量当量为1mSv。该规定明确指出:上述剂量当量限值不包括医疗照射和天然本底照射。实际上人体受天然本底照射的年平均有效剂量约为2.4 mSv,高本底地区、高海拔地区、经常乘坐飞机的人群剂量更高。

一般情况下,全身PET-CT检查的有效剂量在10mSv上下,最高可能达到30mSv,而其它的放射检查(如胃肠道造影、DSA冠状动脉造影、CT血管成像等)剂量在几至十几mSv之间。不同型号的机器、不同的操作人员、不同的成像方法对辐射剂量有较大影响。现在设备生产商和医生们都在努力开发研究降低剂量的新技术,患者所受的辐射会越来越低。

在PET-CT的实际应用中我们也要避免几个认识误区。

一、PET-CT只能用于肿瘤检查。错。大多数肿瘤的代谢非常旺盛,PET-CT可能比其它影像检查手段更早地发现肿瘤征象,但是肿瘤诊断不是PET-CT的唯一用途。在中枢神经系统(脑)和心脏疾病诊断中PET-CT也大有用武之地。PET-CT可以对部分脑癫痫病灶进行准确定位,为外科手术或伽玛刀治疗提供依据;PET-CT也可用于老年性痴呆的早期诊断、鉴别与分期;PET-CT心肌代谢显像是目前判断心肌细胞活性最准确的方法,可以鉴别坏死心肌与可逆性缺血心肌,对介入治疗、冠状动脉搭桥手术有重要的指导作用。

二、PET-CT可以查出所有肿瘤。错。PET-CT只是影像学检查手段的一种,也可能出现假阳性(无癌看成癌)和假阴性(有癌没看到)的结果。如一些感染性病变甚至外伤也会出现局部代谢旺盛的表现,可能被误诊为肿瘤。另一方面,部分代谢不活跃的肿瘤如高分化肺癌、肾脏透明细胞癌、前列腺癌、原发性肝细胞肝癌、低度恶性淋巴瘤等可能被漏诊或被误认为良性病变。

三、癌症患者都需要做PET-CT。错。癌症患者的影像学检查目的包括诊断、分期、指导治疗方案制定、疗效观察、随访复查等。超声、X线、CT、MRI、PET-CT等不同影像学检查手段各有所长也各有限度,应该根据不同患者的情况选择“个体化”检查方案,扬长避短,发挥影像学整体综合优势,如果诊断信息已经足够就无需再做多余的检查,所以并非癌症患者都要做PET-CT。

四、PET-CT可以作为健康体检之用。错。对于健康体检而言,PET-CT的价格太昂贵,阳性率太低,性价比不高,可谓高射炮打蚊子,不合算。部分体检中心宣扬PET-CT作为常规健康体检使用,有诱导消费之嫌。

五、PET-CT辐射严重超标。错。PET-CT同时存在放射性同位素辐射和X线辐射问题,但网上流传“一次全身PET-CT检查相当于一个正常人一小时内接受30年的辐射剂量”是危言耸听的说法。

医学检查中的辐射应充分遵循“实践正当性”原则,两害相权取其轻,在做好充分防护的前提下,合理选择PET-CT检查是没有问题的,但是对于育龄期女性和儿童等辐射敏感人群应尽量避免PET-CT检查。另外值得注意的是要合理控制一定时间段内所有辐射检查(包括X线透视、摄片、造影、DSA、CT、核素检查、PET-CT等)的总次数和时间间隔。

目前PET-CT最常用的显像剂是18F-FDG(18氟代脱氧葡萄糖),其半衰期(放射性强度衰减一半所需要的时间)只有110分钟(10小时后衰减到3%以下,24小时后接近于0),且注射剂量很低,在人体可以接受的安全范围内,检查后多饮水有助于其快速排泄。辐射强度与距离的平方成反比,距离越远则剂量越低,患者检查后无须特殊隔离,正常生活不受影响,仅劝告其10小时内不要与孕妇或儿童密切接触(如拥抱、同睡)。

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
    2015-09-27 feather89
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    2015-12-25 暗夜微凉

    和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
    2015-11-13 vpssa

    一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
    2015-11-13 wangweimin0709

    很好的科普,很好

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
    2015-08-23 jiyangfei
  7. [GetPortalCommentsPageByObjectIdResponse(id=1725880, encodeId=a5611e25880b1, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sun Sep 27 19:54:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=47773, encodeId=edd14e773fc, content=和一个部位的增强CT差不多,为什么没人提一次CT辐射等于30年辐射呢?奇怪, beContent=null, objectType=article, channel=null, level=null, likeNumber=172, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0c81674416, createdName=暗夜微凉, createdTime=Fri Dec 25 21:32:00 CST 2015, time=2015-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43121, encodeId=565e4312110, content=一次PET-CT等于30年辐射可危言耸听了。但是pet-ct辐射多大,伤害多大这里并没有涉及到,有相关数据么?, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201205/e96b3d935daf4e258fba69d60175f0ab/b6d3ee4a3a414b8eafaf7c5e905937a2.jpg, createdBy=ad4b83208, createdName=vpssa, createdTime=Fri Nov 13 14:17:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43114, encodeId=a7664311487, content=很好的科普,很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b021663060, createdName=wangweimin0709, createdTime=Fri Nov 13 10:54:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331038, encodeId=8aa41331038c6, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1349306, encodeId=3a4113493067b, content=<a href='/topic/show?id=838593e35b2' target=_blank style='color:#2F92EE;'>#辐射#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93735, encryptionId=838593e35b2, topicName=辐射)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8e4c53, createdName=jiyangfei, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1426256, encodeId=1f8714262569a, content=<a href='/topic/show?id=a4ef140e620' target=_blank style='color:#2F92EE;'>#PET-CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14076, encryptionId=a4ef140e620, topicName=PET-CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21cd4047192, createdName=saikp, createdTime=Sun Aug 23 02:54:00 CST 2015, time=2015-08-23, status=1, ipAttribution=)]
    2015-08-23 saikp

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JCEM:PET-CT扫描可诊断可治愈Conn症

英国剑桥大学等机构的研究人员在新一期美国《临床内分泌学与新陈代谢杂志》(The Journal of Clinical Endocrinology and Metabolism)上报告说,可以使用PET-CT扫描来诊断康氏症。 高血压是困扰很多人的顽症,但由某些疾病引发的高血压其实是可以治愈的,比如由康氏症引发的高血压,但医生面临的一个难题是如何快捷地断定某人所患的高血压确由康氏症引起。

杨雷:用PET-CT给正常人筛查肿瘤,有必要吗?

今天去北京人民广播电台做节目,给大家分享了如何从生活、饮食习惯方面多加注意,从而达到预防癌症发生的目的。最后由于时间关系,好多听众提出的关于癌症筛查体检等方面的问题没有来得及回答,所以选择几个典型的问题,从自己理解的角度对问题加以解释,希望对大家有所帮助,不足之处,还请大家批评指正。 用PET-CT给正常人筛查肿瘤有无必要?首先看一下数据,2012年北京市户籍人口癌症发病率为313/10

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