[ RadSafe ] Errors expose patients to radiation

[howard long]

Correct, Dale..
My limited experience did indicate that doses were much higher than given by John for cancer treatment.I did not know that prostate cancer was treated with doses as high as you report. The few patients I have seen were given (UCSF) 75rad doses several times a week for months for pancreatic cancer or mediastinal lymphoma. Doses for those diseases would be smaller. 
 I must have given one patient's dosing with another's total. There was no addition check (as I should have).
 
Thank you for providing better info.
 
Howard Long


Dale Boyce <daleboyce at charter.net> wrote:
Howard,

I think you have a typo. 75 x 2 x 6 is 900. Some therapy courses are 200 
rad to the tumor 5 times a week for 6 weeks.

Dale
----- Original Message ----- 
From: "howard long" 
To: "John Jacobus" ; "Muckerheide, James" 
; ; 
Sent: Tuesday, September 27, 2005 10:05 AM
Subject: RE: [ RadSafe ] Errors expose patients to radiation


> Usual CT of chest gives 1 cSv (rad, rem).
> 75 rad 2x/wk for 6 weeks to abdomen is usual
> to treat abdominal cancer (4.000 rad)
>
> Howard Long
>
> John Jacobus wrote:
> Jim,
> Medical exposures of 1 Sv are unusual, even in
> therapy. Biological response predicates the need to
> factionate doses. And, yes, the public dose limit is
> exclusive of medical irradiations.