Questions tagged [radiology]
Radiology is a medical specialty that uses imaging to diagnose and treat diseases seen within the body.
18
questions
4
votes
1answer
108 views
Does the Sievert unit account for how concentrated the radiation dose was?
I often see different types of medical imaging effective doses compared to time required for an equivalent effective dose from background radiation.
For example, a dental x-ray is compared here:
... ...
0
votes
0answers
34 views
What study design is used in this research?
https://www.sciencedirect.com/science/article/abs/pii/S1939865415001113
I've learned about many types of study design including experimental (randomised control trials etc.) and observational study ...
1
vote
1answer
38 views
What is the meaning of “group-by-region interaction effects” (PET scan study of brains affected by schizophrenia)?
I was reading a recent study on schizophrenia and came across this sentence:
We found significant group and group-by-region interaction effects on volume of distribution (VT).
What is the ...
3
votes
0answers
73 views
How safe is low frequency radiation in I.T. edge cases? (5G, etc)
Closely Related: 5G Radiation Dangerous?
Being inundated with all kinds of 5G health statements, (for & against), I noticed a weird trend - the absence of cumulative radiation studies.
Question:
...
3
votes
0answers
20 views
DICOM SliceThickness proximity
I do have DICOMs (Digital Images and COmmunications in Medicine) from several CT volumes where most volumes miss the SliceThickness and SliceLocation attribute.
Is there another attribute usually ...
0
votes
0answers
50 views
Why don't we actively strugle to provide the highest LET particle radiation therapy, maybe with manganese, fluorine, nitrogen, iron, or osmium?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3885128/
I am a cancer patient since 16, a medical student aiming for radiation oncology and subsidiary MSc&Phd in radiophysics. I am actually ...
1
vote
2answers
114 views
Information on the FLUENTAL ® moderator/ shifter. How and who made it?
The FLUENTAL® moderator/shifter appears often in the literature surrounding BNCT therapy. Google offers no search results with useful information on how it was made and whom by.
2
votes
0answers
52 views
Why is the Doppler angle setting supposed to be 60 degrees for arteries but 0 degrees for veins? [closed]
In ultrasonography, why isn't the Doppler angle correction supposed to be 60 degrees for veins just like it is for arteries?
1
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0answers
36 views
Does only the cumulative dose and not the dose rate matter for health effects of low-level radiation?
Most web articles related to negative health effects of radiation and radiation exposures from various sources (diagnostic scans, natural background radiation etc.) compare risk levels in terms of the ...
1
vote
1answer
122 views
How does cancer radiotherapy target only cancer cells?
I read about cancer treatment where the patient would be given radiation to kill cancer cells. How do they make sure that it affects mostly the cancer cells?
Moreover how do they manage it so that it ...
1
vote
0answers
19 views
Typical size for breast tumor at the beginning and at the end of radiotherapy treatment
I'd like to know if you know about sizes of breast tumors at the beginning and at the end of a typical radiotherapy treatment. I know that standard scheduled (50 Gy in 25 sessions) and ...
2
votes
3answers
490 views
What to do when an earthquake hits while inside a MRI?
As mentioned earlier, I had a MRI today... I wasn't in the waiting room for long so I didn't have a chance to read the bright yellow folder labeled "Earthquake Guide during a MRI."
But as I walked ...
2
votes
1answer
229 views
is RADIO-SIGNAL Jammer safe for health?
Recently, I had to overview some WiFi technologies, and then wanted to check RADIOSIGNAL-BLOCKER hardware (a.k.a. WiFi/Cellural-Signal/Bluetooth/ Jammer).
We needed to use that technology to block ...
2
votes
1answer
39 views
Ultra Sound Gender Prediction Accuray
Sorry for a very basic Question (as I am a software engineer) but I am confused after getting material from internet about accuracy of Ultra Sound Gender prediction
Question: How much this is likely ...
1
vote
1answer
45 views
Could hairline fractures be obscured by x-ray images
I had fractured my ankle by the fracture of the fourth metatarsal was not seen in two X-rays that were taken. Only CT-scan revealed the cracks. Why is this the case? I was seen by an doctor who ...
3
votes
0answers
56 views
Are 3D-DSA and 3DRA the same?
This question is to radiologists.
I'm a PhD student in medical image processing and (I thought that) I was working with 3D-DSA images obtained by subtraction of non-contrast enhanced CBCT from a ...
5
votes
1answer
92 views
How do I get screened for (ovarian) cancer?
My wife faces infertility issues, and per a report on NBC news (http://www.nbcnews.com/health/cancer/can-infertility-point-ovarian-cancer-risk-n447901) she potentially faces a higher cancer risk for ...
8
votes
1answer
10k views
Effects of X-rays on the human body
What is the maximum number of times a person can safely undergo x-ray scanning? If this limit is exceeded, are there serious and/or life threatening side effects that the person may experience?
