Misc CAT scans vs MRI scans

**bevischief** · 10-21-2022, 08:34 AM

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.

scho63 · 10-21-2022, 08:36 AM

MRI can look deeper and see small tumors.

scho63 · 10-21-2022, 08:37 AM

Also can see greater layering

'Hamas' Jenkins · 10-21-2022, 09:05 AM

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.

Skyy God · 10-21-2022, 09:27 AM

What body part are they scanning?

**ptlyon** · 10-21-2022, 09:33 AM

Wait for it...

Monticore · 10-21-2022, 09:33 AM

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.

**Lzen** · 10-21-2022, 10:02 AM

Quote:

Originally Posted by 'Hamas' Jenkins

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.

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

TambaBerry · 10-21-2022, 10:10 AM

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.

SupDock · 10-21-2022, 10:30 AM

Quote:

Originally Posted by 'Hamas' Jenkins

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.

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

'Hamas' Jenkins · 10-21-2022, 10:53 AM

Quote:

Originally Posted by Lzen

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

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).

raybec 4 · 10-21-2022, 10:56 AM

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.

scho63 · 10-21-2022, 11:24 AM

Quote:

Originally Posted by Cave Johnson

What body part are they scanning?

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

WilliamTheIrish · 10-21-2022, 11:39 AM

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.

stumppy · 10-21-2022, 11:47 AM

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

10-21-2022, 08:34 AM
bevischief .... Join Date: Apr 2009 Location: Somewhere Kansas Casino cash: $7759352 VARSITY	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.
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10-21-2022, 08:36 AM	#2
scho63 Politically Incorrect Join Date: Feb 2009 Location: Scottsdale, AZ Casino cash: $-710000	MRI can look deeper and see small tumors. __________________ *"The only difference between sex for free and sex for money is that sex for free costs you a WHOLE LOT more!"* ~Redd Foxx~ ~~2018 2019 2020 20212022 2023~~ 2024 Adopt a Chief - Clark Hunt and Brett Veach "The men who drafted Patrick Mahomes"
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10-21-2022, 08:37 AM	#3
scho63 Politically Incorrect Join Date: Feb 2009 Location: Scottsdale, AZ Casino cash: $-710000	Also can see greater layering __________________ *"The only difference between sex for free and sex for money is that sex for free costs you a WHOLE LOT more!"* ~Redd Foxx~ ~~2018 2019 2020 20212022 2023~~ 2024 Adopt a Chief - Clark Hunt and Brett Veach "The men who drafted Patrick Mahomes"
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10-21-2022, 09:05 AM	#4
'Hamas' Jenkins Now you've pissed me off! Join Date: Jan 2006 Casino cash: $7279572	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. __________________ "When the Know-Nothings get control, it will read 'all men are created equal, except negroes, and foreigners, and Catholics.' When it comes to this I should prefer emigrating to some country where they make no pretense of loving liberty – to Russia, for instance, where despotism can be taken pure, and without the base alloy of hypocrisy.”--Abraham Lincoln
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10-21-2022, 09:27 AM	#5
Skyy God 11-5, baby Join Date: Sep 2005 Location: Livin the dream Casino cash: $2191557	What body part are they scanning?
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10-21-2022, 09:33 AM	#6
ptlyon Bono & Grbac wasn't enough Join Date: Oct 2000 Location: Sioux City, IA Casino cash: $9463829	Wait for it... __________________ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Advertise here: $19.99 a month
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10-21-2022, 09:33 AM	#7
Monticore I love your mom Join Date: Feb 2020 Location: Sturgeon Falls, Ontario Casino cash: $-815043	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.
Posts: 7,762	1 0

10-21-2022, 10:10 AM	#9
TambaBerry MVP Join Date: Jan 2013 Casino cash: $-1344459	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.
Posts: 10,922	1 0

10-21-2022, 10:56 AM	#12
raybec 4 MVP Join Date: Feb 2008 Location: East Jabip Casino cash: $4593807	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.
Posts: 11,058

10-21-2022, 11:39 AM	#14
WilliamTheIrish Champion Golfer Of The Year Join Date: Aug 2001 Casino cash: $2650607	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.
Posts: 35,754	0 1

10-21-2022, 11:47 AM	#15
stumppy New and Improved Join Date: Mar 2002 Location: Springfield, Mo. Casino cash: $-2161410	If you're claustrophobic I would suggest some valium about 15 mins before hand. __________________ “As a nation, we can endure damaging policies for a four-year term. But we cannot survive a president willing to terminate our Constitution”
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