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不知道核医学?你OUT啦

2016-04-26 志同道核 志同道核微信公众号

核医学科究竟是干嘛的?每每聊天聊起自己的工作时,总会收获各种稀奇古怪让人头大的问题,累觉不爱了!其实核医学科在发达国家那是遍地开花,美国区区3亿多人口却有12000多台核医学设备,而在我们13多亿人口的泱泱大国却只有800台核医学设备,目前主要集中在500多家三级医院。 那么核医学究竟是做什么的,能诊治哪些疾病呢?就让我们一起来揭开核医学科的神秘面纱吧! Wha

核医学科究竟是干嘛的?每每聊天聊起自己的工作时,总会收获各种稀奇古怪让人头大的问题,累觉不爱了!其实核医学科在发达国家那是遍地开花,美国区区3亿多人口却有12000多台核医学设备,而在我们13多亿人口的泱泱大国却只有800台核医学设备,目前主要集中在500多家三级医院。

那么核医学究竟是做什么的,能诊治哪些疾病呢?就让我们一起来揭开核医学科的神秘面纱吧!

What—什么是核医学?

核医学,简单说就是用放射性核素标记药物来进行诊断和治疗。其中核医学影像是最重要分支之一,广义又称分子影像,就是深入到功能代谢与细胞分子水平来做诊疗,属于功能成像,可以比传统的X光机、CT等解剖成像设备早半年到一年发现病变呢!举个形象的例子,平时咱老百姓拍个胸片、CT,看到的就像是地图的行政区域图,能看到身体里面有没有多长个啥病灶,而核医学影像看到的就像云图,能提前看到身体内分子水平功能的变化。

Why—为什么核医学可以诊断早期病变?

告诉你一个秘密,其实所有病种的形成都是从细胞出问题开始的。

细胞出现问题→组织出现问题→器官出现问题→生病了。

而核医学分子影像学,它的长处恰恰是可以洞悉到细胞分子水平的病变。

How—这么神奇的核医学检查是怎么做到的?

核医学影像利用的是放射性核素示踪技术。示踪技术其实大家并不陌生。比如,在自然界观察野生动物大熊猫的生活习性就是利用的示踪技术。科学家把野生熊猫抓住后,在它身上放上一个无线电发射器,人们在房间内通过仪器就可以探测到大熊猫的行踪,那个无线电发射器就是一种示踪物。

核医学检查用的示踪物不是无线电发射器,而是放射性核素。把微量的放射性核素连在某些化合物上(这些化合物通常被称为疾病“探针”假如想找到肿瘤就可以把放射性核素标记到亲肿瘤的药物上),就成了放射性显像药物,病人检查前通过静脉注射或口服这些显像药物,这些药物参与体内器官和组织细胞的循环和代谢,然后核医学设备通过核素发射的微弱信号探测到这些探针的分布形态并进行成像,帮助医生更早的发现病灶。

对于常规放射影像检查不能发现或无法确诊的疑难疾病,尤其对恶性肿瘤、心脑血管疾病和脑功能性等疾病的早期诊断、疗效评估方面,核医学影像优势大大的。

核医学检查安全吗?

刚刚听小编说核医学检查要用放射性药物,不由联想到核辐射,好担心的问:安全吗?

答案自然是:非常安全!

首先,目前临床用的放射性药物,都是标记的超短半衰期同位素,在几十分钟或几个小时内就在体内完全消失了;

其次,做一次核医学显像所接收的辐射剂量与普通CT检查相当甚至更少。

简言之,核医学检查无创安全、简单灵敏,最大好处是可以提早洞悉功能病变,尤其在恶性肿瘤的早期诊断方面,具有其它放射影像无以比拟的优势。

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    2016-06-03 忠诚向上

    好好学习

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=88323, encodeId=5dcf883239a, content=好好学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=132, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=45101626056, createdName=忠诚向上, createdTime=Fri Jun 03 07:50:00 CST 2016, time=2016-06-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=84964, encodeId=833b849644a, content=用那么多有什么用?又不会提高生存率。明显是外国的推销, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/10/24/60770a300e3f99e9c54e85067da5d704.jpg, createdBy=45db1636816, createdName=1dd96cb3m86(暂无匿称), createdTime=Mon May 09 11:14:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1616481, encodeId=1c6f1616481a0, content=<a href='/topic/show?id=c4e56205696' target=_blank style='color:#2F92EE;'>#核医学#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62056, encryptionId=c4e56205696, topicName=核医学)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2e9619763557, createdName=12498bb3m96(暂无昵称), createdTime=Thu Apr 28 02:31:00 CST 2016, time=2016-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82918, encodeId=f0838291817, content=学习一下了, beContent=null, objectType=article, channel=null, level=null, likeNumber=171, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2d331664955, createdName=老段, createdTime=Tue Apr 26 17:50:00 CST 2016, time=2016-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82892, encodeId=b2dc8289271, content=不知道核医学?用medsci的有吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=152, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7ee51614674, createdName=240612799, createdTime=Tue Apr 26 16:12:00 CST 2016, time=2016-04-26, status=1, ipAttribution=)]
    2016-05-09 1dd96cb3m86(暂无匿称)

    用那么多有什么用?又不会提高生存率。明显是外国的推销

    0

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  4. [GetPortalCommentsPageByObjectIdResponse(id=88323, encodeId=5dcf883239a, content=好好学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=132, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=45101626056, createdName=忠诚向上, createdTime=Fri Jun 03 07:50:00 CST 2016, time=2016-06-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=84964, encodeId=833b849644a, content=用那么多有什么用?又不会提高生存率。明显是外国的推销, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/10/24/60770a300e3f99e9c54e85067da5d704.jpg, createdBy=45db1636816, createdName=1dd96cb3m86(暂无匿称), createdTime=Mon May 09 11:14:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1616481, encodeId=1c6f1616481a0, content=<a href='/topic/show?id=c4e56205696' target=_blank style='color:#2F92EE;'>#核医学#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62056, encryptionId=c4e56205696, topicName=核医学)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2e9619763557, createdName=12498bb3m96(暂无昵称), createdTime=Thu Apr 28 02:31:00 CST 2016, time=2016-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82918, encodeId=f0838291817, content=学习一下了, beContent=null, objectType=article, channel=null, level=null, likeNumber=171, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2d331664955, createdName=老段, createdTime=Tue Apr 26 17:50:00 CST 2016, time=2016-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82892, encodeId=b2dc8289271, content=不知道核医学?用medsci的有吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=152, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7ee51614674, createdName=240612799, createdTime=Tue Apr 26 16:12:00 CST 2016, time=2016-04-26, status=1, ipAttribution=)]
    2016-04-26 老段

    学习一下了

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=88323, encodeId=5dcf883239a, content=好好学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=132, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=45101626056, createdName=忠诚向上, createdTime=Fri Jun 03 07:50:00 CST 2016, time=2016-06-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=84964, encodeId=833b849644a, content=用那么多有什么用?又不会提高生存率。明显是外国的推销, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/10/24/60770a300e3f99e9c54e85067da5d704.jpg, createdBy=45db1636816, createdName=1dd96cb3m86(暂无匿称), createdTime=Mon May 09 11:14:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1616481, encodeId=1c6f1616481a0, content=<a href='/topic/show?id=c4e56205696' target=_blank style='color:#2F92EE;'>#核医学#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62056, encryptionId=c4e56205696, topicName=核医学)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2e9619763557, createdName=12498bb3m96(暂无昵称), createdTime=Thu Apr 28 02:31:00 CST 2016, time=2016-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82918, encodeId=f0838291817, content=学习一下了, beContent=null, objectType=article, channel=null, level=null, likeNumber=171, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2d331664955, createdName=老段, createdTime=Tue Apr 26 17:50:00 CST 2016, time=2016-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=82892, encodeId=b2dc8289271, content=不知道核医学?用medsci的有吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=152, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7ee51614674, createdName=240612799, createdTime=Tue Apr 26 16:12:00 CST 2016, time=2016-04-26, status=1, ipAttribution=)]
    2016-04-26 240612799

    不知道核医学?用medsci的有吗?

    0

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