不是铅领子，铅围裙之类的东西。或者是隔离措施之类？

我这么问是因为那篇纽约时报的文章的最后，在提到"Playing It Safe" 的时候，说我们作为去看病的人，如果真的担心的话，可以在看牙照X ray 或者mammogram 的时候，主动要求要个铅领子，铅围裙保护自己，或者要求digital X-ray，甚至MRI，ultra-sound 等等代替。我不懂啊，我想那个操纵仪器的人，因为仪器辐射剂量小并且安全，就不需要做其他的防护吗？

文中确实提到低剂量辐射对甲状腺癌的影响，说得是：
But what of lower doses? Studies of the relationship between frequent dental X-rays and thyroid cancer have been conflicting, and in some the methodology has been suspect. (Some reports, including a frightening one from Kuwait, relied on people’s ability to remember the X-rays they received.)

But the best study of diagnostic X-ray exams, conducted in Sweden, where precise medical records are kept, found no connection to thyroid cancer.

但是我想，此处说得是正常看病过程中，患者因为检查身体接触到X-ray，这类接触不会增加甲状腺癌的危险。是反驳美国有些医生忽悠的，说每年做五次Xray 的检查，可以增加患甲状腺癌的机会四倍。
“I was not surprised by a stream of panicked e-mails I received after a television show in which the popular Dr. Mehmet Oz called thyroid cancer “the fastest-growing cancer in women” and cited the harmful effects of radiation from sources like dental X-rays and mammograms.

Dr. Oz warned that people who have more than five X-rays a year have a fourfold greater risk of developing this cancer, and recommended the use of a lead thyroid shield when getting dental X-rays or mammograms. One of his guests on the program, Dr. Carolyn Runowicz, a gynecological cancer specialist, said she would not get dental X-rays if the only reason was to check her teeth. ”

现在，检查方式突进，查出的甲状腺癌剧增，不过也不是十个里面能查出三个来，而是一年中十万个里面能查出17 个来。我觉得即使是17个，也要算sporadic吧？