[ RadSafe ] Increase in Cancer Risk due to Cardiac Imaging

[Brennan, Mike (DOH)]

Hi, Franz.

I am glad the procedure was successful.  I agree with your conclusion, which is in agreement with my contention that compared to a short term consequence of death, there are few long term consequences that can be considered too negative.  

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Franz Schönhofer
Sent: Thursday, February 10, 2011 2:08 PM
To: 'The International Radiation Protection (Health Physics) MailingList'; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Increase in Cancer Risk due to Cardiac Imaging

Leo,

A short comment by somebody who has been a patient:

About ten years ago I had a coronary infarction and I underwent the usual
intervention locating the block of blood flow and with balloon dilatation.
When the surgeon was about to set stents he asked me, whether I would agree
to participate in a research project, in which they were testing
P-32-stents. Of course I agreed. I had also agreed to let them check after
certain times the status of the blood vessel. It was done two times and I
was happy to hear that there were no "candy wrappers" at the end of the
stents and I have lived ever since a life in relatively good health.

My conclusion: This extra radiation may have saved my life and helped to
restore my health. Therefore I do not care for the increase in cancer risk
of 3%.

Best regards,

Franz

Franz Schoenhofer, PhD
MinRat i.R.
Habicherg. 31/7
A-1160 Wien/Vienna
AUSTRIA


-----Ursprüngliche Nachricht-----
Von: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] Im Auftrag von Leo M. Lowe
Gesendet: Mittwoch, 09. Februar 2011 20:03
An: radsafe at agni.phys.iit.edu
Betreff: [ RadSafe ] Increase in Cancer Risk due to Cardiac Imaging

Hello,

A recent study on cardiac imaging of heart attack patients by 
Eisenberg et al. in the Canadian Medical Association Journal 
(7Feb2011) reports a dose-dependent response and a cancer risk of 3% 
per 10 mSv in the patients.  This seems quite high.  A minimum 
exposure-to-cancer onset delay of one year was used in the analysis 
to assess potentially attributable cancers.

See the CBC News report at 
http://www.cbc.ca/health/story/2011/02/07/heart-cancer-radiation-tests.html

An on-line version of the paper is available on the CMAJ web site.

Any comments?

Regards,


Leo M. Lowe, Ph.D., P.Phys., CRadP
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