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	<title>Comments on: Are Americans Getting too Much Medical Radiation?</title>
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	<description>Bad Science And Scary Science</description>
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		<title>By: franck</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-15025</link>
		<dc:creator>franck</dc:creator>
		<pubDate>Fri, 06 Mar 2009 08:14:58 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-15025</guid>
		<description>[quote comment=&quot;14994&quot;]While I am sure that the x-ray intensity is low and the safety margin is very good, any system like that will expose the patient to some x-rays.  I mean, you are exposed to some just watching an old CRT television.

It&#039;s an issue of risk to benefit.

I&#039;m not surprised at all that it would increase survival by a good order of magnitude.

It sure beats flying blind!  It also beats the more invasive options.

Medical imaging has come a long way and it&#039;s really an exciting field.  It&#039;s great to see how this equipment is becoming more avaliable even as it is being continuously improved to provide better imaging and new functions.

Some of the new 3D radiology systems are really really cool.

&lt;b&gt;Be assured that the work you do on these systems does not go unappreciated around here.

&lt;/b&gt;[/quote]


Yes, patients are exposed to x-rays, but these particular devices are designed to see the shape of veins or heart cavities, which means they use only high energy x-ray photons, above ~100keV (the beam has to pass trough a cooper or alluminium plate before reaching the patient that filters out the dangerous energy levels) and these photons have too much energy to interact with the ligh atoms forming organic chemistery (it&#039;s quantum physics, an atom can only absorb an ionizing radiation if it can have a corresponding electron state transition, and each atom has a very limited list of such possible transition).
On the image, soft tissues are invisible (so, there is no significant absorbtion), bones are transparent with visible outlines (their mineral coating absorbs a small proportion of the beam) and the iodine solution-filled veins or cavities are plain (high absorbtion by the iodine).

Of course, that doesn&#039;t mean that these devices come with strict safety rules, in particular at the factory, where tests and calibrations sometimes need the generation of a full power unfiltered beam.</description>
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<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14994"><b>drbuzz0 said:</b></a></p>
<blockquote cite="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14994"><p>
While I am sure that the x-ray intensity is low and the safety margin is very good, any system like that will expose the patient to some x-rays.  I mean, you are exposed to some just watching an old CRT television.</p>
<p>It&#8217;s an issue of risk to benefit.</p>
<p>I&#8217;m not surprised at all that it would increase survival by a good order of magnitude.</p>
<p>It sure beats flying blind!  It also beats the more invasive options.</p>
<p>Medical imaging has come a long way and it&#8217;s really an exciting field.  It&#8217;s great to see how this equipment is becoming more avaliable even as it is being continuously improved to provide better imaging and new functions.</p>
<p>Some of the new 3D radiology systems are really really cool.</p>
<p><b>Be assured that the work you do on these systems does not go unappreciated around here.</b></p>
</p>
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</div>
<p>Yes, patients are exposed to x-rays, but these particular devices are designed to see the shape of veins or heart cavities, which means they use only high energy x-ray photons, above ~100keV (the beam has to pass trough a cooper or alluminium plate before reaching the patient that filters out the dangerous energy levels) and these photons have too much energy to interact with the ligh atoms forming organic chemistery (it&#8217;s quantum physics, an atom can only absorb an ionizing radiation if it can have a corresponding electron state transition, and each atom has a very limited list of such possible transition).<br />
On the image, soft tissues are invisible (so, there is no significant absorbtion), bones are transparent with visible outlines (their mineral coating absorbs a small proportion of the beam) and the iodine solution-filled veins or cavities are plain (high absorbtion by the iodine).</p>
<p>Of course, that doesn&#8217;t mean that these devices come with strict safety rules, in particular at the factory, where tests and calibrations sometimes need the generation of a full power unfiltered beam.</p>
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		<title>By: DV82XL</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-15010</link>
		<dc:creator>DV82XL</dc:creator>
		<pubDate>Thu, 05 Mar 2009 22:16:08 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-15010</guid>
		<description>This is the sort of scaremongering hyperbole that should not be permitted in my opinion: 

&lt;b&gt;American&#039;s Radiation Exposure Greater Than Being In Atomic Bomb Blast Zone&lt;/b&gt;


 &lt;i&gt;&quot;Alarmingly, radiation levels caused by CT scans are so high that receiving just two or three CT scans bombards your body with as much radiation as surviving an atomic bomb blast (no kidding).&quot;&lt;/i&gt; 

&lt;i&gt;&quot;Read this shocking story to learn the truth about the incredible harm being caused by CT scans, mammograms and cancer radiation &quot;therapy&quot;.&quot;&lt;/i&gt;

&lt;b&gt;From &lt;/b&gt;&lt;a href=&quot;http://www.naturalnews.com/025767.html&quot; rel=&quot;nofollow&quot;&gt;here&lt;/a&gt;</description>
		<content:encoded><![CDATA[<p>This is the sort of scaremongering hyperbole that should not be permitted in my opinion: </p>
<p><b>American&#8217;s Radiation Exposure Greater Than Being In Atomic Bomb Blast Zone</b></p>
<p> <i>&#8220;Alarmingly, radiation levels caused by CT scans are so high that receiving just two or three CT scans bombards your body with as much radiation as surviving an atomic bomb blast (no kidding).&#8221;</i> </p>
<p><i>&#8220;Read this shocking story to learn the truth about the incredible harm being caused by CT scans, mammograms and cancer radiation &#8220;therapy&#8221;.&#8221;</i></p>
<p><b>From </b><a href="http://www.naturalnews.com/025767.html" rel="nofollow">here</a></p>
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		<title>By: TheOldBear</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-15002</link>
		<dc:creator>TheOldBear</dc:creator>
		<pubDate>Thu, 05 Mar 2009 16:43:59 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-15002</guid>
		<description>All is relative. There may be more exposure [on average] today than say ten years ago, but...

How about the 1950&#039;s where it was common to have a fluoroscope in a shoe store, operated by the salesman. He would show you on the screen just how the shoe fit your foot. 

Now that&#039;s [steampunk era] high technology! None of your wimpy image intensifiers, digital signal processing or other fancy electronics.</description>
		<content:encoded><![CDATA[<p>All is relative. There may be more exposure [on average] today than say ten years ago, but&#8230;</p>
<p>How about the 1950&#8217;s where it was common to have a fluoroscope in a shoe store, operated by the salesman. He would show you on the screen just how the shoe fit your foot. </p>
<p>Now that&#8217;s [steampunk era] high technology! None of your wimpy image intensifiers, digital signal processing or other fancy electronics.</p>
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		<title>By: drbuzz0</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14994</link>
		<dc:creator>drbuzz0</dc:creator>
		<pubDate>Thu, 05 Mar 2009 15:27:09 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14994</guid>
		<description>[quote comment=&quot;14987&quot;]I worked in development for a fluoroscopy imager (from what I can see, the successor of the gear in your photo), and not only it is radiologically very safe (the X-rays used are taylored to pass trough soft tissues and only be stopped by the iodine solution injected in the targetted veins that then expel that energy as heat), but it also reduces eart and vascular surgery mortality by a good order of magnitude.[/quote]

While I am sure that the x-ray intensity is low and the safety margin is very good, any system like that will expose the patient to some x-rays.  I mean, you are exposed to some just watching an old CRT television.   It&#039;s an issue of risk to benefit.   I&#039;m not surprised at all that it would increase survival by a good order of magnitude.   It sure beats flying blind!  It also beats the more invasive options.  

Medical imaging has come a long way and it&#039;s really an exciting field.  It&#039;s great to see how this equipment is becoming more avaliable even as it is being continuously improved to provide better imaging and new functions.   Some of the new 3D radiology systems are really really cool.

&lt;b&gt;Be assured that the work you do on these systems does not go unappreciated around here.   &lt;/b&gt;</description>
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<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14987"><b>franck said:</b></a></p>
<blockquote cite="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14987"><p>
I worked in development for a fluoroscopy imager (from what I can see, the successor of the gear in your photo), and not only it is radiologically very safe (the X-rays used are taylored to pass trough soft tissues and only be stopped by the iodine solution injected in the targetted veins that then expel that energy as heat), but it also reduces eart and vascular surgery mortality by a good order of magnitude.</p>
</blockquote>
</div>
<p>While I am sure that the x-ray intensity is low and the safety margin is very good, any system like that will expose the patient to some x-rays.  I mean, you are exposed to some just watching an old CRT television.   It&#8217;s an issue of risk to benefit.   I&#8217;m not surprised at all that it would increase survival by a good order of magnitude.   It sure beats flying blind!  It also beats the more invasive options.  </p>
<p>Medical imaging has come a long way and it&#8217;s really an exciting field.  It&#8217;s great to see how this equipment is becoming more avaliable even as it is being continuously improved to provide better imaging and new functions.   Some of the new 3D radiology systems are really really cool.</p>
<p><b>Be assured that the work you do on these systems does not go unappreciated around here.   </b></p>
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		<title>By: mlp</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14992</link>
		<dc:creator>mlp</dc:creator>
		<pubDate>Thu, 05 Mar 2009 15:06:59 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14992</guid>
		<description>Interesting side note: one of the things which has led to medical imaging being able to save more people&#039;s lives, especially in emergency situations, is high-speed Internet access and digital imaging. CT scans and the like need to be interpreted by an expert radiologist, and it&#039;s expensive to keep one of those on staff 24/7. This can be prohibitive for small hospitals.

However, with digital imaging, now all a hospital needs is an imaging device and a trained technician who can operate the machine. If no radiologist is present (say, if someone shows up at 3 am with a head injury), the hospital can send the digital images to a hospital in another country where it&#039;s daytime, the radiologists there who are on duty during their normal hours interpret the results, and they send back their report. 

In my experience it took about twenty minutes. I&#039;m very grateful to the radiologists in Australia who determined that my middle-of-the-night concussion last year was not life-threatening. :)</description>
		<content:encoded><![CDATA[<p>Interesting side note: one of the things which has led to medical imaging being able to save more people&#8217;s lives, especially in emergency situations, is high-speed Internet access and digital imaging. CT scans and the like need to be interpreted by an expert radiologist, and it&#8217;s expensive to keep one of those on staff 24/7. This can be prohibitive for small hospitals.</p>
<p>However, with digital imaging, now all a hospital needs is an imaging device and a trained technician who can operate the machine. If no radiologist is present (say, if someone shows up at 3 am with a head injury), the hospital can send the digital images to a hospital in another country where it&#8217;s daytime, the radiologists there who are on duty during their normal hours interpret the results, and they send back their report. </p>
<p>In my experience it took about twenty minutes. I&#8217;m very grateful to the radiologists in Australia who determined that my middle-of-the-night concussion last year was not life-threatening. <img src='http://depletedcranium.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>By: apotheosis</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14991</link>
		<dc:creator>apotheosis</dc:creator>
		<pubDate>Thu, 05 Mar 2009 14:05:20 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14991</guid>
		<description>&lt;blockquote&gt;Yes, avoid radiation. It degrades your healthy balance.&lt;/blockquote&gt;
But today, &lt;strike&gt;war&lt;/strike&gt;medicine is too important to be left to &lt;strike&gt;politicians&lt;/strike&gt;doctors. They have neither the time, the training, nor the inclination for strategic thought. I can no longer sit back and allow &lt;strike&gt;Communist&lt;/strike&gt;medical infiltration, &lt;strike&gt;Communist&lt;/strike&gt;medical indoctrination, &lt;strike&gt;Communist&lt;/strike&gt;medical subversion and the international &lt;strike&gt;Communist&lt;/strike&gt;medical conspiracy to sap and impurify all of our precious bodily fluids.</description>
		<content:encoded><![CDATA[<blockquote><p>Yes, avoid radiation. It degrades your healthy balance.</p></blockquote>
<p>But today, <strike>war</strike>medicine is too important to be left to <strike>politicians</strike>doctors. They have neither the time, the training, nor the inclination for strategic thought. I can no longer sit back and allow <strike>Communist</strike>medical infiltration, <strike>Communist</strike>medical indoctrination, <strike>Communist</strike>medical subversion and the international <strike>Communist</strike>medical conspiracy to sap and impurify all of our precious bodily fluids.</p>
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		<title>By: Karin Douglas</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14990</link>
		<dc:creator>Karin Douglas</dc:creator>
		<pubDate>Thu, 05 Mar 2009 13:45:23 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14990</guid>
		<description>Excellent writeup.   The author touched on something that is important to stress involving screening x-rays especially mammograms.   In the past few years there have been groups putting out information about how mammography is dangerous because of the radiation exposure and some have gone so far as to say women should not get annual mammograms.   This is really something that needs to be opposed because it is confusing patients and can lead to forgoing of mammogram out of fear of radiation or confusion of what to do.

A mammogram exposes a woman to very minimal radiation doses and does not present any significant danger.   However, it has been proven time and time again to be a simple, inexpensive and effective way of saving lives through early detection.   This is why they are so highly recommended now, because the more data we have the better we can see how valuable a tool it is.

Of course, medical imaging has saved many lives and improved many more in other areas, because it is so important that doctors are able to understand exactly what the problem in a patient is and see what is going on inside the body.

If anyone is ever worried that their doctor is sending them for unnecessary diagnostic imaging or they are receiving more x-ray imaging tests or CT scans, they should seek a second opinion or even a third opinion.  It&#039;s always good to seek more opinions when in doubt about ones care.   However, they should seek the second opinion from a qualified practitioner and not from an fear mongering internet site or a homeopathic quack.

Please get the tests you need.</description>
		<content:encoded><![CDATA[<p>Excellent writeup.   The author touched on something that is important to stress involving screening x-rays especially mammograms.   In the past few years there have been groups putting out information about how mammography is dangerous because of the radiation exposure and some have gone so far as to say women should not get annual mammograms.   This is really something that needs to be opposed because it is confusing patients and can lead to forgoing of mammogram out of fear of radiation or confusion of what to do.</p>
<p>A mammogram exposes a woman to very minimal radiation doses and does not present any significant danger.   However, it has been proven time and time again to be a simple, inexpensive and effective way of saving lives through early detection.   This is why they are so highly recommended now, because the more data we have the better we can see how valuable a tool it is.</p>
<p>Of course, medical imaging has saved many lives and improved many more in other areas, because it is so important that doctors are able to understand exactly what the problem in a patient is and see what is going on inside the body.</p>
<p>If anyone is ever worried that their doctor is sending them for unnecessary diagnostic imaging or they are receiving more x-ray imaging tests or CT scans, they should seek a second opinion or even a third opinion.  It&#8217;s always good to seek more opinions when in doubt about ones care.   However, they should seek the second opinion from a qualified practitioner and not from an fear mongering internet site or a homeopathic quack.</p>
<p>Please get the tests you need.</p>
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		<title>By: DV82XL</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14988</link>
		<dc:creator>DV82XL</dc:creator>
		<pubDate>Thu, 05 Mar 2009 08:49:15 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14988</guid>
		<description>[quote comment=&quot;14986&quot;]Do you even know what the words &#039;chemical&#039; and &#039;radiation&#039; mean?[/quote]

No he doesn&#039;t and he hasn&#039;t actually read any of the posts he&#039;s commented on because he wouldn&#039;t understand those, nor any of the following remarks by others.</description>
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<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14986"><b>Finrod said:</b></a></p>
<blockquote cite="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14986"><p>
Do you even know what the words &#8216;chemical&#8217; and &#8216;radiation&#8217; mean?</p>
</blockquote>
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<p>No he doesn&#8217;t and he hasn&#8217;t actually read any of the posts he&#8217;s commented on because he wouldn&#8217;t understand those, nor any of the following remarks by others.</p>
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		<title>By: franck</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14987</link>
		<dc:creator>franck</dc:creator>
		<pubDate>Thu, 05 Mar 2009 08:11:16 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14987</guid>
		<description>I worked in development for a fluoroscopy imager (from what I can see, the successor of the gear in your photo), and not only it is radiologically very safe (the X-rays used are taylored to pass trough soft tissues and only be stopped by the iodine solution injected in the targetted veins that then expel that energy as heat), but it also reduces eart and vascular surgery mortality by a good order of magnitude.</description>
		<content:encoded><![CDATA[<p>I worked in development for a fluoroscopy imager (from what I can see, the successor of the gear in your photo), and not only it is radiologically very safe (the X-rays used are taylored to pass trough soft tissues and only be stopped by the iodine solution injected in the targetted veins that then expel that energy as heat), but it also reduces eart and vascular surgery mortality by a good order of magnitude.</p>
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		<title>By: Finrod</title>
		<link>http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/comment-page-1/#comment-14986</link>
		<dc:creator>Finrod</dc:creator>
		<pubDate>Thu, 05 Mar 2009 08:09:32 +0000</pubDate>
		<guid isPermaLink="false">http://depletedcranium.com/?p=1868#comment-14986</guid>
		<description>[quote comment=&quot;14982&quot;]Yes too much radiation and too much toxic drugs from chemicals.

More natural medicine is better.

Health stays good to begin with and that means you do not have illness to treat.

Radiation is part of the polution we see today.  Electronic items are full of toxins and radiation makes things worse.

Yes, avoid radiation.

It degrades your healthy balance.

It is a bigger danger today.  If the doctor wants you to go inside something big and electronic then use your mind and know how bad it is.  Do not let them.  Natural alternatives exist.[/quote]

Do you even know what the words &#039;chemical&#039; and &#039;radiation&#039; mean?</description>
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<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14982"><b>Juan said:</b></a></p>
<blockquote cite="http://depletedcranium.com/are-americans-getting-too-much-medical-radiation/#comment-14982"><p>
Yes too much radiation and too much toxic drugs from chemicals.</p>
<p>More natural medicine is better.</p>
<p>Health stays good to begin with and that means you do not have illness to treat.</p>
<p>Radiation is part of the polution we see today.  Electronic items are full of toxins and radiation makes things worse.</p>
<p>Yes, avoid radiation.</p>
<p>It degrades your healthy balance.</p>
<p>It is a bigger danger today.  If the doctor wants you to go inside something big and electronic then use your mind and know how bad it is.  Do not let them.  Natural alternatives exist.</p>
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<p>Do you even know what the words &#8216;chemical&#8217; and &#8216;radiation&#8217; mean?</p>
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