0 By aeadmin In Posted September 13, 2024Hello, in 2020 when my daughter was 4 1/2 years old she had an ear infection that would not go away with antibiotics, tubes and other treatments. The doctor presented an option of an “Xray” since no other diagnostic procedures were available to due Covid. He pushed to have us do the adenoidectomy but I chose the but when I got to the imaging center I found out it would be a CT of her temporal bone. I went ahead with it with little information from her doctor/the radiologist on radiation exposure. I called recently to get the dose and they said she received 55.75 mgy and the report shows DLP 420 with a note that says “pediatric reductions used.” On the phone, a radiologist from the facility she went to said “ooh, I usually turn it down” when reading the CTDI mgy which has caused me great distress the past year. My question is, should I be concerned about the amount of radiation for this one time exposure for my daughter and approximately how much MSV is this? READ MORE
0 By aeadmin In Posted July 5, 2024hi, I have two questions. My first question Is by administering contrast when doing a CAT scan does that increase the amount of msv a person will receive or is the msv the same as without contrast and does the amount of radiation absorb by the organs increase ? For example if an abdominal /pelvic CT scan is 12 msv without contrast , using the same machine if contrast was then given would the total still be 12 msv but the amount of radiation absorbed by the organs be higher with the scan done with contrast as opposed to the one done without contrast ? I also wanted to ask when they say a hip x-ray is 0.6 msv does that mean for only one view or is that for two or even three views ? Thank you READ MORE
0 By aeadmin In Posted May 13, 2024How can I find your guidelines for CT radiation limits? I am 60 years old, both my parents with cancer (mom died), and the insurer recommended me to do a hip CT even though the orthopedic doctor clearly wrote MRI in the referral. I understand the insurer’s preference to save money but given my radiation concern, exacerbated by age and family history and the fact that I already had 5 XRay imaging sessions in the past 12 months (three dental and 2 chest views) – I of course prefer to go for the MRI option. I tried to find in your site any official reference (because they said that “according to the AAPM there is zero risk for me”) – but failed. Can you please advise – considering my history, age, and previous xray sessions this year – what would you consider as an exposure to avoid? Is there really a zero risk? Shouldn’t I insist on the MRI – as recommended by the doctor? Basically I see the discrepancy between the clinical doctor and the administrational doctor. And I need to know that they don’t just use your establishment name in order to “disarm” me and save some dollars… Your insights will be highly appreciated. Especially if you would have advised to insist on the MRI (all considered) READ MORE
0 By aeadmin In Posted April 10, 2024Hi I am not sure if my question went through was I was resubmitting . I have 2 questions . First is it safe to do a full T3 MRI if the spine including lumbar and the a few hours later in the same day do an abdominal pelvic CT ? Does that increase cancer risk ? Second i know they say that MRIs are safe but if they use the sane RF as cell phones then why do they say cell phones cause cancer ? Can MRIs cause cancer like the cell phones can possibly do ? If that is a possibility then could it be dangerous to do an MRI before a CT scan ? Could the heating up of the tissue prior to x rays with the CT lead to more DNA damage ? Thank you , Lisa READ MORE
0 By aeadmin In Posted February 20, 2024When talking about the risks of radiation in X-rays, often it is compared to background radiation. However, scans are usually aimed at a concentrated area of the body in very short amount of time, whereas I assume background radiation is spread across the whole body. Can the two be compared when we talk about risk to individual organs? Does 1 mSv aimed at one part of the body does more damage to that part than 1 mSv worth of background radiation? READ MORE
0 By aeadmin In Posted October 30, 2023My 6 week old baby just had a skull X-Ray that consisted of 5 X-Ray images. Her radiation dose was estimated to be 0.4 mSv. I have been worried about her exposure to this radiation and was wondering if you could help me understand what risk this puts her at for future complications or cancer being that her age is so young? Thank you so much for your help. READ MORE
0 By aeadmin In Posted October 16, 2023My name is Mannah Kaniini, an MSc. student at the University of Zambia, in Zambia. Im doing a research as a requirement for me to graduate. the field of the project i inted to do is in the medical physics field. I have been reading a lot of your publications which i have found quite useful so far. I do have a question on the dosimetric indices such as DHI,COIN,CI,CN,OI, etc. what could be acceptable value for each? from most studies i have seen so far they just generally state the fact that for the CI,COIN and other a value close to 1 is ideal while for DNR and OI 0 is ideal. Is there a threshold or range to accept these values especially for a cervical implant READ MORE
0 By aeadmin In Posted August 16, 2023Hello there, I’m employed at Big Sky Medical Center situated in Big Sky, Montana. My current quest involves obtaining a CT Dose chart that outlines the DLP and CTDI ranges for the average patient dimensions across various body regions. My intention is to display this chart in our CT Tech section for their reference. Interestingly, the ACR didn’t have precisely what I needed and actually suggested reaching out to you. I greatly appreciate your time and assistance. Regards, Mike READ MORE
0 By aeadmin In Posted July 14, 2023how many hospitals/clinics perform radionuclide therapy in the United States? READ MORE
0 By aeadmin In Posted June 22, 2023I recently had a CT scan of the head in an emergency room. My medical record shows the radiation dose as DLP 582 mGY-cm. Can you tell me what this equals in terms of millisieverts? READ MORE
