I’ve been looking up brain scans on the web and the websites are practically useless because they’re filled with darn legal disclaimers. “There is no reliable test for …”, “May be useful in detecting … but …”.

If I want legal disclaimers, I’ll consult a lawyer.

What are the physical limitations in detection (eg. size of object) in the following methods of brain scan?

CT scan
CT scan with iodine containing contrast medium
PET scan
PET scan with amyloid detecting medium
MRI scan
MRI scan with contrast medium
fMRI scan

as they apply to neoplasms, small cysts, stroke, haematoma, Alzheimer?

I has one of them, they needed get the technician in because they couldn’t get an image resembling a brain on the screen

might return later with a more serious contribution, all I could manage given my mood right now

Each type of scan looks for particular data I’d say

Physical changes use all of the above

Subtle data will come from an ECG

What are you trying to do ?

If you are worried about brain health have a look at red light/ infra red light, some frequencies with the appropriate power should penetrate the skull.

I’ve been thinking of making a handheld device that I can use to beam injured wildlife , there’s nothing worse than seeing an injured bird and being powerless to fix it. I saw an injured plover a few days ago and started thinking about it again.

I got talking to a physiotherapist at the hospital a while about infra red light, she’d tried it but she felt the light sources weren’t powerful enough

Another innovative and interesting application is in the treatment of Alzheimer’s disease via reduction of amyloidosis. Serratiopeptidase was found to be as effective as nattokinase (an enzyme shown to degrade amyloid fibroid) in relieving Alzheimer’s disease pathophysiology in a rat model

I’d use this method in conjunction with MB to have a go to solve problems. The infrastructure red therapy would be the third way used in conjunction with the other two.

Slightly off topic, but useful.

mollwollfumble said:

Slightly off topic, but useful.

i’m assuming you want to know these things for a purpose

i’m currently studying the eating habits of 4th century roman women with learning disabilities

wookiemeister said:

mollwollfumble said:

Slightly off topic, but useful.

i’m assuming you want to know these things for a purpose

i’m currently studying the eating habits of 4th century roman women with learning disabilities

I see
lights pipe

wookiemeister said:

mollwollfumble said:

Slightly off topic, but useful.

i’m assuming you want to know these things for a purpose

i’m currently studying the eating habits of 4th century roman women with learning disabilities

Yes. I think I’m getting dementia.

That’s why I wanted to check capabilities of brain scan types.

I went to the doctor today who gave me the good news that no dementia is apparent in eithe CT scan, blood test or urine test. So no brain cancer, stroke, or brain shrinkage is visible.

Also quick mental test showed that I don’t have severe dementia.

But a CT scan can’t check hypothalamus size, which is a main indicator of Alzheimer’s.

I previously had a kidney CT scan with iodine contrast agent and reacted badly to the contrast agent. What I don’t understand is why iodine would show up on an X-ray.

PET scans can detect amyloid beta with the eight contrast agent. MRI can detect a reduction in hypothyroid size.

I knew iodine was radiopaque but not why, so here is wiki’s answer:

“ Iodinated contrast contains iodine. It is the main type of radiocontrast used for intravenous administration. Iodine has a particular advantage as a contrast agent for radiography because its innermost electron (“k-shell”) binding energy is 33.2 keV, similar to the average energy of x-rays used in diagnostic radiography. When the incident x-ray energy is closer to the k-edge of the atom it encounters, photoelectric absorption is more likely to occur.”

Molly, have you been referred to a CDAMS service? They are more experienced in this field than a GP and can track your cognition longitudinally. Cog impairment is harder to detect in people with higher education levels.