推荐回答(5个)
放心 不会有伤害的 核磁共振的磁场再强也不会比万有引力强,也许对人体细胞内的离子有微弱的作用,但是构不成伤害。但是有一点要记住,做核磁共振的患者不要带任何金属物品,手机 手表都不行。还有做过手术的患者更要注意,比如搭桥手术,心脏起搏,耳膜修复,助听等利用技术器械的手术,如果进入核磁共振内会有很大的危险。
核磁共振不会对身体有危害。
1、由于核磁共振是磁场成像,而不是X射线,没有放射性,所以对人体无害,是非常安全的。到目前为止,世界上还没有任何关于医院使用核磁共振机引起危害的报道,也未发现病人基因突变或染色体畸变的发生率有增高。
2、核磁共振成像是利用电子计算机,对人体断面进行图像分析诊断的检查方法,它不用X线,而是磁场,其基本原理是人体所含氢原子在强磁场下,给予特定的高波后会发生共振现象,产生一种高波数的电磁波。核磁共振正是利用这个性质,采用电子计算机对磁场的变化收集处理并图形化。
3、核磁共振成像可以显示脂肪、全身脏器、肌肉、快速流动的血液、骨骼和空气等。对脏器内部结构也能清楚显示。医生可以很好的识别病人体内的肿瘤、炎症、坏死病灶、异常物质沉着、功能阻碍、血液循环阻碍等病变。对于神经系统、胸部、腹部及四肢各种疾病的诊断提供了很大的帮助。
/iknow-pic.cdn.bcebos.com/5fdf8db1cb134954071d59ba584e9258d0094ae8"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/5fdf8db1cb134954071d59ba584e9258d0094ae8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/5fdf8db1cb134954071d59ba584e9258d0094ae8"/>
扩展资料
核磁共振是磁矩不为零的原子核,在外磁场作用下自旋能级发生塞曼分裂,共振吸收某一定频率的射频辐射的物理过程。核磁共振波谱学是光谱学的一个分支,其共振频率在射频波段,相应的跃迁是核自旋在核塞曼能级上的跃迁。
由于核磁共振是磁场成像,没有放射性,所以对人体无害,是非常安全的。据了解,目前世界上既没有任何关于使用核磁共振检查引起危害的报道,也没有发现患者因进行核磁共振检查引起基因突变或染色体畸变发生率增高的现象。
虽然核磁共振在筛查早期病变有着独到之处,但任何检查都是有限度的,比如有些病人不适合核磁共振,就不要过度检查。他呼吁,任何患者都应遵医嘱进行检查,不要以为影像检查越贵越好,只有适合自己的检查才是最好的。
参考资料来源:/baike.baidu.com/item/%E6%A0%B8%E7%A3%81%E5%85%B1%E6%8C%AF/240600?fr=aladdin"target="_blank"title="只支持选中一个链接时生效">百度百科-核磁共振
核磁的成像原理是利用人体内的氢质子在静磁场中经射频脉冲激励后产生共振的现象来成像的。它是临床上软组织最清晰,分辨率最高的影像检查,是一种无辐射无创伤的检查。所以你不要担心。
做核磁共振时,会对人体有辐射吗?医生给出意外答案,要留神
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