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Coronary Calcium Scan
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<blockquote data-quote="DragonBits" data-source="post: 102886" data-attributes="member: 18023"><p>I agree there is a risk with CT radiation, though I have never gotten any sort of xray or CT scan in the past, outside of dental xrays.</p><p></p><p>Not sure about how much radiation was involved with advocate group as it varies a lot depending on the machine. But I thought the risk was worth the information.</p><p></p><p>So I would be careful, especially if you are under 50 years of age.</p><p></p><p>NIH says</p><p></p><p><span style="color: #000000">[FONT=&quot][h=3]Results[/b]Radiation dose from a single CAC CT scan varied more than 10-fold (effective dose range=0.8 to 10.5 mSv) depending on the protocol. In general higher radiation doses were associated with higher x-ray tube current, higher tube potential, and spiral scanning with low pitch, and retrospective gating. The wide dose variation also resulted in wide variation in estimated radiation-induced cancer risk. Assuming screening every five years from age 45-75 for men and from age 55-75 for women, the estimated excess lifetime cancer risk using the median dose of 2.3 mSv (0.8-10.5 mSv) was 42 cases/100,000 for men (range 14-200) and 62 cases/100,000 for women (range 21-300).</span></p><p><span style="color: #000000">[/FONT]</span></p><p><span style="color: #000000">[FONT=&quot][h=3]Conclusions[/b]These radiation risk estimates can be compared to potential benefits from screening, when such estimates are available. Doses and hence risks can be minimized by using optimized protocols.</span></p><p><span style="color: #000000"></span></p><p><span style="color: #000000"><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765044/" target="_blank">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765044/</a></span></p><p><span style="color: #000000"></span></p><p><span style="color: #000000"></span></p><p><span style="color: #000000"></span></p><p><span style="color: #000000">[/FONT]</span></p></blockquote><p></p>
[QUOTE="DragonBits, post: 102886, member: 18023"] I agree there is a risk with CT radiation, though I have never gotten any sort of xray or CT scan in the past, outside of dental xrays. Not sure about how much radiation was involved with advocate group as it varies a lot depending on the machine. But I thought the risk was worth the information. So I would be careful, especially if you are under 50 years of age. NIH says [COLOR=#000000][FONT="][h=3]Results[/b]Radiation dose from a single CAC CT scan varied more than 10-fold (effective dose range=0.8 to 10.5 mSv) depending on the protocol. In general higher radiation doses were associated with higher x-ray tube current, higher tube potential, and spiral scanning with low pitch, and retrospective gating. The wide dose variation also resulted in wide variation in estimated radiation-induced cancer risk. Assuming screening every five years from age 45-75 for men and from age 55-75 for women, the estimated excess lifetime cancer risk using the median dose of 2.3 mSv (0.8-10.5 mSv) was 42 cases/100,000 for men (range 14-200) and 62 cases/100,000 for women (range 21-300). [/FONT][/COLOR] [COLOR=#000000][FONT="][h=3]Conclusions[/b]These radiation risk estimates can be compared to potential benefits from screening, when such estimates are available. Doses and hence risks can be minimized by using optimized protocols. [url]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765044/[/url] [/FONT][/COLOR] [/QUOTE]
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