CAT scans vs MRI scans
 

Just finished the 3rd CAT scan over 6 years and now they want MRI for the first time. What differences do these these pick up? Besides I lose at least an hour.

MRI can look deeper and see small tumors.

Also can see greater layering

CT scans are like hundreds of X-rays of a cross-section of your body. When using contrast of a radio opaque dye, it can determine soft tissue abnormalities, like a pulmonary embolism.

MRI uses a magnetic field to realign polar (i.e. water molecules) back and forth. That reorientation creates an image. It's why MRI is good for assessing soft-tissue injury, like a ligament tear. Conversely, bone does not image well on MRI due to lack of water molecules.

MRI has better spatial resolution than CT. Both have their benefits.

What body part are they scanning?

Wait for it...

What Hamas said ,

But sometimes they don’t know what they want lol , I had a patient this year where I found an atypical renal lesion on ultrasound , they recommended follow up ultrasound in a few months , that ultrasound recommended a CT , the CT recommended and MRI which then recommended Ultrasound , good times.

Can you tell us what are the different types of CT scans?

I got an ultrasound done on my balls by the hottest Asian woman I have ever seen. Luckily it was nothing but that's my story. I also found 20 bucks on the ground in the parking lot.

CT generally has better spatial resolution (distinguish objects that are near to each other). MRI has better contract resolution (distinguishing similar types of tissue near each other, like tumor vs normal tissue)
A big advantage to CT is how quick it is.


A big problem with X-ray is shadowing. Meaning an object obscures objects behind it. In a CT the X-Rays rotate around the body allowing a 3-D reconstruction

I would default to Monticore, I think it's his field of expertise. I mainly know about them via their association with nuclear medicine procedures (PET/CT, PET/MRI).

I had a shoulder replacement done about 8 years ago, it needs to be replaced again but my doc said he couldn't see what ne needed to see on the MRI so he sent me for a CT. Maybe that's because of the things Hamas talked about.

His balls as he is trying to make Lewdog's Alpha list.

1) don’t listen to scho.

2) CT-as Hamas/Monti said, it’s an array of detectors moving in a circular motion using radiation. It constructs an image from those detectors. Imagine that your body is a loaf of bread. And you are able to pick the most middle slice of bread out @ as small as 1 cm, look at closely, then place it back into the loaf. Then put this slices into a series of images that a radiologist can scroll through.

Essentially, that’s what CT does. Software allows reconstruction in several planes and also, allows bone to removed from area to create and show (soft tissue and brain) images of specific areas.

Source- years at companies that engineer these scanners.

If you're claustrophobic I would suggest some valium about 15 mins before hand.