也许没那么严重

来源: 若雨 2008-11-02 19:15:14 [] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (725 bytes)
Please check the following link:

http://www.healthsearches.org/Categories_of_Q&A/Breast_Cancer_Screening/1026.php

Does the radiation from a mammogram cause cancer?

No. Modern-day mammography only involves a tiny amount of radiation — even less than that used in a standard chest X-ray.

Radiation is measured in rads. To give you an idea of just how low radiation exposure is during a mammogram, consider the following comparison. The views (individual x-ray shots) taken during a mammogram (usually 2 are taken) are around 0.1 - 0.2 rads. By comparison, cancer patients undergoing radiation treatment often receive anywhere from 1000 to 7000 or more rads in a normal course of therapy.

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