X光检查和甲状腺癌

作者:心如水  于 2012-3-7 03:05 发表于 最热闹的华人社交网络--贝壳村

作者分类:健康资信|通用分类:健康生活

關於女性甲狀腺癌 女士們,請閱讀......

在我以前幾年中,我照過很多次X光照片。但從來未用過奧茲博士提到的小工具。這些小工具跟女性中增長最迅速的女性甲狀腺癌有著很大關係……

甲狀腺癌

上週三,奧茲醫生在一個婦女節目中演講現今增長最快的女性癌病;『甲狀腺癌』。這是一個非常有趣的節目,奧茲醫生說這個在女性癌病中增長最快速的甲狀腺癌,可能跟病人在照牙科的X光片和乳房X光檢查有關。

奧茲醫生指出,當牙醫幫您的牙齒照X片時,那個X機設備配有一個活動兜罩,可以舉起和包裹在你的脖子上,保護甲狀腺,但是許多牙醫懶得去使用它。此外,還有一種叫做『甲狀腺護罩』為病人在做乳房X光檢查時用,但很多時都沒有使用。

很巧合,我昨天去醫院做每年乳房X光健康檢查。我問照X光的技師:“有沒有『甲狀腺護罩』”,技術員說:“有,只是一直放在抽屜裡,不經常使用。”我問為什麼,技術員答:“我不知道。病人要問才會用”。

“嗯,如果我沒有看過奧茲醫生這個節目,我怎麼懂得去問?

雖然照X光檢查牙齒和乳房,只需要幾秒到幾分鐘,但由於『甲狀腺』位於頸部下前方,呈盾牌狀或盔甲狀,X光的輻射很容易影響到『甲狀腺』。

以後記得;每當要照X光檢查牙齒和乳房,記得提出要用『甲狀腺護罩』圍在脖子上。

美国的医生有另外的说法:

Thyroid Cancer and Mammograms – What You Need to Know

Posted on April 7, 2011by fletcherallenblog

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Mehmet Oz, MD, a physician and television personality, recently discussed a possible connection between thyroid cancer and the radiation in mammograms. Since then, we have heard from a few patients who are concerned about this potential link – so here are some facts about mammograms and radiation exposure.

First, it’s important for people to keep in mind that we are exposed to radiation every day, from materials in the earth, from radon in the air, from outer space, and even from inside our own bodies – as a result of the food and water we consume.

The amount of radiation your body absorbs can be measured in millisieverts (mSv). A mammogram exposes you to approximately 0.2 mSv. The dose to your thyroid gland is less than 0.002 mSv.

To put this in context, the naturally occurring background radiation in our environment exposes you to approximately 3 mSv per year. If you live at higher elevations – say, 6000 feet above sea level – you absorb an additional 0.26 mSv per year. Spend just 24 minutes flying in an airplane and you absorb 0.002 mSv. And if you live in a stone, brick or concrete building you will absorb another 0.07 mSv per year, because there may be slightly more naturally occurring radioactivity in these building materials.

So there is no escaping a certain amount of radiation. And the amount of radiation your thyroid gland absorbs from a mammogram is well within the parameters of the amount of radiation you absorb just living on this planet.

If you are wondering whether you should ask about wearing a thyroid shield in your next mammogram, you should know that there are drawbacks: sometimes the shield can obscure a useful view of breast tissue, and then you might have to have a repeat mammogram, exposing you to double the dose of radiation.

In fact, the American College of Radiologists and the Society of Breast Imaging do not recommend use of a thyroid shield – here’s a link to their recent press release on the topic: http://www.mammographysaveslives.org/Documents/ACR-SBI%20Thyroid%20CA%20Statement.pdf

 


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