Today’s Medical Mysterie
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Guy trying to get through security with a pistol under his hat?
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Guy trying to get through security with a pistol under his hat?
@LuFins-Dad said in Today’s Medical Mysterie:
Guy trying to get through security with a pistol under his hat?
You're close.
It was a screening film before a CT scan - pistol under a wig.
Answer: This shocking CT scout film reveals a concealed handgun that was successfully hidden from police tucked under the patient’s wig
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Wait, a CT scan?! The same scan that they don’t even want you wearing an ear stud due to the magnetic forces at work? And this dumbass took a gun under a fricking wig?!
And what kind of wig was it to hide a fucking pistol?
And may I ask what the ethnicity of the person was? Or is it racist for even asking?
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CT scan is basically a fancy x-ray.
Here's your history for the day.
A "tomogram" was a way of seeing a "slice" through a patient. It was performed by having the x-ray beam move while the plate under the patient moved in an opposite direction. By focusing the beam (don't quote me on this) it was possible to see a certain depth of tissues in a patient. Think of a camera moving in an arc and the film moving in the opposite direction. In the dark ages, it was a way of seeing something specific in a patient (say a gallstone) that would be missed on a normal radiograph. It eliminated the problem of superficial tissues obscuring visualization of deeper tissue.
In the early 1970s, EMI scanners became available. They utilized tomographic technology, but combined with a computer, they could take a TON of pictures in a hurry.
When I did my neurology rotation in 1974, I was amazed that we had a machine that actually let us see into the brain.
EMI was a trade name, and CAT Scanners (computerized axial tomography) became the preferred name for the machines.
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MRI is totally different technology.
Water molecules are polar - they have a positive side and a negative side, sort of like a magnet. The oxygen in the molecule is (relatively) negatively charged, and the two hydrogen atoms are (relatively) positively charged.
By exposing a water molecule to a magnetic field, you can get it to "line up" along the magnetic field.
Humans (and other animals) are mostly water, and different tissues have different amounts of water. So, in theory, if you can get a magnet powerful enough, you can make ALL the water molecules in a body line up along the magnetic field. Since different tissues have different amounts of water, it's possible to use a computer to differentiate the amounts of water in each tissue - and to generate a photo.
