原创 做一次CT，对人体的损害有多大？多少次会致癌？告诉你大实话
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">走进医院，不论是<span style="color: black;">由于</span>头痛、肚子痛，还是咳嗽，<span style="color: black;">大夫</span>常常会<span style="color: black;">意见</span>：“先来个CT<span style="color: black;">检测</span>吧。”</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">此时</span>候，不少人可能会心里打鼓：“做一次CT，得承受多少辐射？”<span style="color: black;">或</span>“要是做多了，会不会容易得癌？”这些担心都很正常。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">到底，CT<span style="color: black;">检测</span>能查出些什么病？做CT<span style="color: black;">检测</span>真的会影响<span style="color: black;">咱们</span>的健康吗？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1、</span><span style="color: black;">为何</span>去医院总要做CT<span style="color: black;">检测</span>，有什么用？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">CT<span style="color: black;">检测</span>是一种<strong style="color: blue;">无痛、无创</strong>的<span style="color: black;">检测</span><span style="color: black;">办法</span>，它利用X射线束对身体进行层层扫描，<span style="color: black;">协同</span>计算机处理，能够对各个部位进行<span style="color: black;">仔细</span>的“切片”观察，<span style="color: black;">能够</span>清晰地<strong style="color: blue;"><span style="color: black;">表示</span>骨骼、软组织、血管和其他结构</strong>，比普通X光更<span style="color: black;">仔细</span>。</p><img src="//q2.itc.cn/images01/20240708/2d968b65a41f401a9641ea2423412000.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">CT分为两种方式，<span style="color: black;">第1</span>种是<strong style="color: blue;"><span style="color: black;">普通平扫CT</span></strong>，操作很简单，只需要<strong style="color: blue;">平躺在CT机上</strong>，短短几秒钟就能完成扫描。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">第二种是<strong style="color: blue;"><span style="color: black;"><span style="color: black;">加强</span>扫描CT</span></strong>，是在平扫<span style="color: black;">基本</span>上，<strong style="color: blue;"><span style="color: black;">经过</span>静脉注射一种名为碘的对比剂</strong>，其会随着血液流遍全身的组织和器官。注射之后，<span style="color: black;">大夫</span>能更清楚地观察病变组织，将其与正常组织进行对比，判断<span style="color: black;">是不是</span>存在病变。简单<span style="color: black;">来讲</span>，<strong style="color: blue;"><span style="color: black;"><span style="color: black;">加强</span>扫描CT能看得更细致清晰</span></strong>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">CT<span style="color: black;">检测</span>之<span style="color: black;">因此</span>这么常用，是<span style="color: black;">由于</span>它能<span style="color: black;">检测</span>出<span style="color: black;">非常多</span><span style="color: black;">疾患</span>，<span style="color: black;">乃至</span>是肿瘤：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">神经系统：</strong>CT是<span style="color: black;">检测</span>脑部损伤、<strong style="color: blue;">脑肿瘤、脑梗塞</strong>等神经系统<span style="color: black;">疾患</span>的有效工具。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">心血管系统：</strong>可用于诊断心包肿瘤、心包积液、急性主动脉夹层动脉瘤等心血管<span style="color: black;">疾患</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">胸部：</strong>CT对肺部的病变，如<strong style="color: blue;">肺炎、肺结核、肺癌</strong>等，都能<span style="color: black;">供给</span>清晰的图像。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">腹部：</strong><span style="color: black;">针对</span>肝脏、胆囊、胰腺等腹部器官的病变，CT能够准确<span style="color: black;">表示</span>病变的位置和程度。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">骨头：</strong>CT能够<span style="color: black;">表示</span>骨头的细小病变，<span style="color: black;">能够</span>诊断出骨折、骨肿瘤。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">肝脏：</strong>CT<span style="color: black;">检测</span>对肝占位性病变、肝硬化等肝脏<span style="color: black;">疾患</span>的诊断灵敏度较高。</p><img src="//q6.itc.cn/images01/20240708/b24ef7be531c44af85834848b49b6490.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2、</span>做一次CT有多大辐射？会致癌吗？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">非常多</span>做过CT<span style="color: black;">检测</span>的<span style="color: black;">伴侣</span>，可能都有过<span style="color: black;">这般</span>的经历：站在CT室门口，看到“电离辐射 请勿靠近”的警示牌，心里头多少会有点七上八下，担心辐射会不会<span style="color: black;">损伤</span>身体。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">广州中医药大学第三<span style="color: black;">附庸</span>医院医学影像科</span></strong>副<span style="color: black;">专家</span>胡剑波<span style="color: black;">大夫</span><span style="color: black;">暗示</span>，偶尔做几次CT<span style="color: black;">检测</span>，对身体影响不大，<strong style="color: blue;"><span style="color: black;"><span style="color: black;">不消</span>太担心辐射或致癌问题</span></strong>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">首要</span>，<span style="color: black;">此刻</span>的医院做CT<span style="color: black;">检测</span>都很讲究，<strong style="color: blue;">会<span style="color: black;">保证</span>辐射剂量对人是安全的</strong>。<span style="color: black;">设备</span>会<span style="color: black;">按照</span><span style="color: black;">检测</span>的部位来<span style="color: black;">调节</span>设置，<span style="color: black;">运用</span>的技术还能减少辐射。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">其次，从辐射量<span style="color: black;">来讲</span>，<span style="color: black;">非常多</span><span style="color: black;">科研</span>都<span style="color: black;">显示</span>，只要<strong style="color: blue;"><span style="color: black;">不超过100毫西弗</span></strong>，<strong style="color: blue;">癌症<span style="color: black;">危害</span>就不会<span style="color: black;">显著</span><span style="color: black;">上升</span></strong>。而拍个普通的胸片，辐射量<span style="color: black;">仅有</span>非常小，大<span style="color: black;">都数</span><span style="color: black;">状况</span>下，做一次CT<span style="color: black;">检测</span><span style="color: black;">咱们</span>接触到的辐射量<strong style="color: blue;">大概在2毫西弗到10毫西弗之间</strong>。</p><img src="//q8.itc.cn/images01/20240708/52bdf16b86be4315864dc4fcdbff8310.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">简单<span style="color: black;">来讲</span>，一年内CT<span style="color: black;">检测</span>的<strong style="color: blue;">总辐射量只要不超过100毫西弗</strong>，<span style="color: black;">便是</span>安全的。<span style="color: black;">倘若</span><span style="color: black;">大夫</span>认为病情需要做CT，那就要<span style="color: black;">根据</span>给出的<span style="color: black;">意见</span>来，该<span style="color: black;">检测</span>就<span style="color: black;">检测</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3、</span>CT<span style="color: black;">检测</span>非人人适合，5类人<span style="color: black;">意见</span>少做</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">CT<span style="color: black;">检测</span>虽然能查出多种<span style="color: black;">疾患</span>，辐射对人体<span style="color: black;">亦</span><span style="color: black;">无</span><span style="color: black;">损伤</span>，但并不是<span style="color: black;">每一个</span>人都适合做。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">1、过敏体质的人</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">有些</span>人对CT<span style="color: black;">检测</span>中<span style="color: black;">运用</span>的<strong style="color: blue;">碘造影剂过敏</strong>，过敏反应会从<strong style="color: blue;">轻微的皮疹</strong>、发痒到严重的喉头水肿、<span style="color: black;">呼气</span>困难，<span style="color: black;">乃至</span><strong style="color: blue;">过敏性休克</strong>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">2、肾功能不全者</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">CT<span style="color: black;">检测</span>中<span style="color: black;">运用</span>的造影剂在<span style="color: black;">身体</span><span style="color: black;">重点</span><span style="color: black;">经过</span>肾脏进行代谢和排泄，肾功能不全的<span style="color: black;">病人</span>进行CT<span style="color: black;">检测</span>会加重肾脏的<span style="color: black;">包袱</span>，进一步损害肾脏功能，<span style="color: black;">乃至</span>可能<strong style="color: blue;">诱发急性肾<span style="color: black;">损害</span></strong>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">3、心脏病<span style="color: black;">病人</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">尤其</span>是有<strong style="color: blue;"><span style="color: black;">心率</span>失常、冠心病</strong>等心脏问题的<span style="color: black;">病人</span>，可能对CT<span style="color: black;">检测</span>中的辐射比较<span style="color: black;">敏锐</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">4、儿童</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">因为</span>儿童的身体组织对辐射更为<span style="color: black;">敏锐</span>，且<span style="color: black;">处在</span>生长<span style="color: black;">生长</span><span style="color: black;">周期</span>，<span style="color: black;">通常</span>不<span style="color: black;">意见</span>做CT<span style="color: black;">检测</span>，除非<span style="color: black;">大夫</span>认为非常必要。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">5、孕妇</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在胚胎<span style="color: black;">生长</span>的<span style="color: black;">初期</span><span style="color: black;">周期</span>，尤其是器官形成期，胎儿对辐射较为<span style="color: black;">敏锐</span>。在这个<span style="color: black;">周期</span>，即使较低剂量的辐射<span style="color: black;">亦</span>可能<strong style="color: blue;"><span style="color: black;">增多</span>某些出生缺陷的<span style="color: black;">危害</span></strong>。</p><img src="//q7.itc.cn/images01/20240708/bfbfe82d600b4767974e59abe4266b90.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4、</span>做CT<span style="color: black;">检测</span>，需要<span style="color: black;">重视</span>什么？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">厦门大学<span style="color: black;">附庸</span>中山医院肿瘤科</span></strong>副<span style="color: black;">专家</span>医师潘战和<span style="color: black;">大夫</span>提醒，做CT<span style="color: black;">检测</span>前，应该做好这四个准备：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">第1</span>步：脱下去除金属物品</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">检测</span>前，<strong style="color: blue;">摘掉身上的金属物品</strong>，<span style="color: black;">例如</span>首饰、眼镜、假牙、皮带扣等，<span style="color: black;">由于</span>金属会影响图像清晰度。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">第二步：穿合适的衣物</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">穿上<strong style="color: blue;"><span style="color: black;">无</span>金属扣子或拉链的衣物</strong>，方便换上医院的<span style="color: black;">检测</span>服。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">第三步：禁食</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">倘若</span>是做腹部CT，记得<strong style="color: blue;">提前4到6个小时不要吃东西</strong>，<span style="color: black;">这般</span><span style="color: black;">检测</span>时胃里就不会有<span style="color: black;">食品</span>干扰了。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">第四步：喝水</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一样</span><span style="color: black;">倘若</span>是腹部CT，需要喝点水，有利于更清楚地看到器官的形状。</p><img src="//q2.itc.cn/images01/20240708/9a857546612340dab61702a6370d673b.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">南阳市<span style="color: black;">第1</span>人民医院</span></strong>专家提醒，做完CT<span style="color: black;">检测</span>，想减少辐射对身体的影响，<span style="color: black;">举荐</span><strong style="color: blue;">喝杯绿茶</strong>，吃点<strong style="color: blue;">胡萝卜、橘子、<span style="color: black;">番茄</span>和苹果</strong>等<span style="color: black;">鲜嫩</span>蔬果，<span style="color: black;">亦</span><span style="color: black;">能够</span>吃点<strong style="color: blue;">海带、紫菜和黑木耳</strong>等海<span style="color: black;">制品</span>，这些<span style="color: black;">食品</span><span style="color: black;">亦</span>有助于抗辐射。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">总的<span style="color: black;">来讲</span>，<span style="color: black;">不消</span>太过担心做CT<span style="color: black;">检测</span>会有辐射，其实CT的好处远大于那点辐射的影响。CT<span style="color: black;">检测</span><span style="color: black;">帮忙</span><span style="color: black;">大夫</span>诊断<span style="color: black;">疾患</span>，这对健康<span style="color: black;">来讲</span>很重要。只要辐射量<span style="color: black;">掌控</span>在安全范围内，CT<span style="color: black;">检测</span>对<span style="color: black;">咱们</span>是利大于<span style="color: black;">坏处</span>的。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">参考资料：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">《真相！<span style="color: black;">这般</span>做CT<span style="color: black;">不易</span>致癌》.肿瘤专科<span style="color: black;">大夫</span>.2023-09-10</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">《做一次CT<span style="color: black;">检测</span>，CT辐射对身体<span style="color: black;">到底</span>有多大<span style="color: black;">损伤</span>？》.广州中医药大学第三<span style="color: black;">附庸</span>医院.2023-09-23</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">《CT<span style="color: black;">检测</span>不仅“吃”辐射还致癌？你想多了……》.南阳市<span style="color: black;">第1</span>人民医院.2023-08-04</p>
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