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Every procedure has to be weighed for potential costs and benefits. Cancer is a risk already present and might shorten a life, CT scans on the other hand are done to prolong a life. The exact risks (costs) for CT scans is unknown, especially the exact risks for you, since we only have statistical data to estimate that. Prior data forms the basis for this ...


6

CT brain at 31, what's the risk? Short answer: Very little, compared to overall cancer risk* Longer answer: Your girlfriend is concerned about increased risk of brain malignancy due to having a CT at age 31. This is something that the FDA has weighed in on in a helpful summary page: As in many aspects of medicine, there are both benefits and risks ...


6

The intestinal and luminal protozoa are normally identified in stool specimens, the blood protozoa by examination of blood films with microscopy (malaria), and lymph node biopsy and serological testing (toxoplasmosis), nematodes, cestodes and trematodes by identifying eggs/larvae in stool/sputum/urine specimens. Advanced disease states might require imaging ...


5

In general, a CT scan of an organ is intended to check only that organ, not the entire body region, even if some other organs are seen on the image. A CT of one organ can accidentally reveal a disorder in some other organ, though. Below is a CT image of the kidneys that reveals tumors (red arrows) in both kidneys. The image also shows parts of some other ...


5

Intestinal parasites can be detected by stool tests (and additional blood tests if necessary). Note that these tests are often false negative, which means they may not detect parasites even if you have them, so if you still suspect you have parasites, you need to repeat the tests. Treatment is with antiparasitic drugs dependent on the type of parasite. When ...


4

The amounts of radiation in today's machines is low enough that there is no negative impact to be expected. For comparison: X-Rays: A chest X-ray gives you about 10 mrem MRIs measure the reaction time of molecules (in the body) to changes of outside magnetic fields. No radiation or radioactivity is involved at all. CT-Scans: A chest CT scan clocks in at ...


3

Regarding United States, quote from "Copy Fees and Patients’ Rights to Obtain a Copy of Their Medical Records: From Law to Reality" (2005): Patients have a legal right under HIPAA to a copy of their medical records. Personal life-long medical records rely on patients’ ability to exercise this right inexpensively and in a timely manner. We surveyed 73 ...


3

Yes, an abdominal CT scan can reveal abnormal mucous lining in the small intestine, for example, in Crohn's disease (PubMed Central), lymphoma, etc. Additional investigations, such as capsule endoscopy and biopsy with histological examination, are usually needed to establish the exact diagnosis.


3

Take a look at the IHE Radiology Scheduled Workflow integration profile in IHE Radiology (RAD) Technical Framework. This explains a common workflow model.


3

“Acquisition in a single volume” means an image obtained by a single rotation of a scanner ("single gantry rotation"). It covers up to 16 cm of the body. "Wide volume imaging" includes repeated single volume imaging of adjacent areas and then combining them into a single image. So, two volumes would cover up to 32 cm, three volumes up to 48 cm, etc. Source:...


2

The TL;DR answer is: yes, radiation can cause cancer, but no one knows for sure exactly what the risk is of one CT scan. Radiation (especially in fetuses/children) increases the likelihood of cancer. Our information comes mostly from atomic bomb survivors, people exposed at Chernobyl, people treated with high doses of radiation for cancer and other ...


1

I don't know about official Chinese recommendations, but this might help. China had experience with SARS, and this new infection was looking a lot like SARS. They did not have a surfeit of testing kits for a new virus, but they knew what SARS looked like on CT scans. Therefore, symptomatic patients received CT scans of the chest before being tested for ...


1

It is very important that you and your dad see his doctor for an explanation of these results ASAP. Reading CT results out of clinical context can lead to misunderstandings. The doctor can analyze the CT results in the setting of your dad's clinical picture. Only he/she can explain the significance of the results, and what that means for your dad. I ...


1

The risk from a single CT exposure should realistically be estimated to be zero. The commonly used "linear no-threshold extrapolation model" to get to estimates of cancer risks due to exposure to low levels of radiation (of the order of 10 mSv or less) has no scientific basis whatsoever. E.g., observations of excess cancer cases after the Chernobyl ...


1

I would say no, because Sievert is defined as Joule/kg (https://en.wikipedia.org/wiki/Sievert). I cannot find the patient weight or mass irradiated in the provided data.


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