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zoiDman

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So I had an MRI done Today on a Sprained Ankle that Hasn’t Healed Properly.

(For Anyone who has Never had an MRI, they are a Trip.

They ask you about 5 Different Times and on 3 Different Forms if you have any Metal in your Body. Finally, after answering “No” for the Last Time, they put Earplug into your Ears saying it is going to be Loud. Then they slide you into this Tube and tell you have to remain as Absolutely Motionless. And that if you Move, even Raise your Arms or Move your Head from side-to-side, it could Blur the Image so they might have to do that segment again.

Once they leave the MRI Room thru the 6” thick door, the Machine does some Random Beeping. As well as some rather Loud Occasional Thumping. And they Slide you in or out of the Tube an Inch or so. Which is somewhat Unnerving because you Didn’t know they were going to do that.

Then they say something over the Speaker to you, which of course you Can’t really Understand because you have Earplugs in. It sounded kinda like “We are ____ to Start ___ Sequence”. But It also could have been “We are ____ a Major Problem ___ the System”. Which Isn’t all that reassuring.

Then the Tube Starts Hammering and Thumping like it is Coo Coo for Cocoa Puffs. I’m talking Noises that just Scream at your Primal Senses “Danger – Danger. Get Away. Something is about to Explode”. All the while you keep trying to remain Motionless. While every Nerve in you Body is say’n “Get the Fluck away from this Thing. Its gunna Blow”.

This goes on for like 20 Minutes with Brief Periods where the Machine doesn’t do anything. And you just lay there wondering if that is Smoke you Smell coming from the Machine? Or Maybe it is coming off your Ankle?)

When it was Over, the Tech came back in thru the 6” Thick Door and instead of say’n… “OK. You Did Great.”, she say’s… “Do you know you have a Piece of Metal in your Heal?”.

Say What? I was like “No. I Didn’t. What is it? Like a Splitter or Something?”

She then has this Puzzled Look and said… “It’s about the Size of a Splitter. But it looks too Perfect to be a Splitter. It Looks more like a Piece of Wire. A Very Small Diameter Piece of Wire.”

LOL

With a Very Straight Face, and a Mental Image of the a Snipping Off Coil Legs of 316L SS, I said… “That’s Strange. How would something like that get in My Heal?”

She explained that many people will get a Metal Splitter in their Foot. And if they Don’t get it all out, your Body will Encapsulate it in Callus Skin. And you might have it for Years without knowing it. But an MRI can see it.

So as I Hobbled out of the MRI Lab in my Sigourney Weaver Loader Boot, I Chuckled that I might not Know yet why my Ankle Hasn’t gotten Better. But I do know what Happen to that Coil Leg I got in my Heal, and thought I got out, about 6 Months Ago.

:D
 

ENAUD

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Try getting an mri with contrast dye next time, same procedure, except you got a catheter in your arm attached to a huge vial of fluid that is mechanically pumped into your vein, they tell you over the speaker when its going to happen, and you can watch the pneumatic plunger force the stuff into you, and when it hits you, you get a hot flash that makes your skin feel like it's 120 degrees in that tube...yeah, I got a twenty inch Frankenstein scar on my belly because of the results of that scan, renal cell carcinoma, about the size of an orange. Been 25+ years since that carnival ride, but memories of it have not faded...
 

zoiDman

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P.S. did they remove the wire from your heel?

No, She just Kinda said it was Strange because it looked so Perfect. And that was about it.

I do kinda think that She did an Extra Sub-Millimeter scan of it. Because I seemed to be in there Longer than the 2 People before me. And an Extra Tech came in to Help prep the Room after Me that gave Her the Stink for like What Took So Long with this Guy?

Just Kinda Amazing that we Tech that can 3D Image a piece of 26ga Coil Wire that is probably 3mm Long embedding on someone's Heel.
 
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zoiDman

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Try getting an mri with contrast dye next time, same procedure, except you got a catheter in your arm attached to a huge vial of fluid that is mechanically pumped into your vein, they tell you over the speaker when its going to happen, and you can watch the pneumatic plunger force the stuff into you, and when it hits you, you get a hot flash that makes your skin feel like it's 120 degrees in that tube...yeah, I got a twenty inch Frankenstein scar on my belly because of the results of that scan, renal cell carcinoma, about the size of an orange. Been 25+ years since that carnival ride, but memories of it have not faded...

That Sounds Wild !

Saved your Life? Or maybe gave you an Extra 25 or 30 More Years on the Meter?
 

ENAUD

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That Sounds Wild !

Saved your Life? Or maybe gave you an Extra 25 or 30 More Years on the Meter?
The tumor would have gone into my right lung, so yeah, every day since has been an extension of my timeline :) I been beatin the snot outa my left kidney since, and it's a fighter ;) I sometimes think I have surpassed my expiration date...
 

sonicbomb

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I've had a a couple of MRIs and they are a trip.
I'm surprised it didn't rip the wire right out of you and embed in the chassis of the scanner.

r3Fp4DT.jpg
 

zoiDman

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I've had a a couple of MRIs and they are a trip.
I'm surprised it didn't rip the wire right out of you and embed in the chassis of the scanner.

They are a Trip. No Doubt.

The Surreal setting you're in doesn't do much to set you at ease. Because you probably wouldn't be having a MRI in the 1st Place if everything was Hunky Dory. So you're a Little Wigged Out to start with.

When the Angry Thumping, Hammering, Buzzing starts, you're like... "That Can't be Normal? Did the MRI just throw a Rod or Something? Is the Tech trying to Shut it Down but the MRI software caused Windows 10 to Crash? And they Can't Pull Me Out because the Field is still on and it would Suck the Fillings out of their Teeth if the Open the Door.

LOL

BTW - Maybe that Piece of Wire was ripped out of my Heal when the Flux Field hit 15,000 Gauss?
 

zoiDman

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Here's a nice short length vid on how MRI scanners work.



In there it posits the idea that the radio and magnetic pulses cause an electromagnetic effect to occur that then causes the distinctive noises that they produce.


I was talking to someone last night about my Ankle and Mentioned the Noises that the MRI made.

He said that when He had an MRI about a year ago, the Tech told Him that they Can make an MRI with existing technology that is Much Quieter. By doing "Soft" Ramp-Ups / Ramp Downs on the Gradient Magnets.

But the Downside is that you would have to be in the MRI like 3 Times Longer. So for me, that 20 Minutes would have become an Hour.

And they have found that it is Hard to keep a Patient to be Perfectly Still for Longer Periods even when Sedated. So Image Quality can severely Drop Off.

There is Also a New Generation of "Quiet" MRI's that are being Evaluated. But they are supposed to be Very Expensive. And would probably not be Mainstream for awhile.
 
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Mordacai

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@zoiDman, I believe that the best MRI scanners are made by Siemens.

Years ago they bought a specialist company that produced rare earth metal magnets. The reason being is that the higher the precision of the magnets, the less noise and more detail is produced in the images.

And that in itself helps to reduce scan time due to not having to reimage the same area multiple times due to having to bin corrupted images and to composite the good ones.

But I can definitely agree that you don't want to know the price tag of a high resolution MRI scanner that is quiet and fast, as it must be so over engineered to dampen vibration and noise.
 
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zoiDman

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@zoiDman, I believe that the best MRI scanners are made by Siemens.

Years ago they bought a specialist company that produced rare earth metal magnets. The reason being is that the higher the precision of the magnets, the less noise and more detail is produced in the images.

And that in itself helps to reduce scan time due to not having to reimage the same area multiple times due to having to bin corrupted images and to composite the good ones.

But I can definitely agree that you don't want to know the price tag of a high resolution MRI scanner that is quiet and fast, as it must be so over engineered to dampen vibration and noise.

This is what they stuck my Foot into...

fPAfGijXm7GYg2UUSpNT87G9ikSCebI2OEziXWov.jpeg


Which I believe is a 1.5T (1.5 Tesla's) MRI.

From what I have read, 1.5T is usually fine for Diagnosing many Orthopedic Problems like Torn/Ruptured Ligaments and or Tendons.

Loud as Hell maybe. But a Good tool to see inside someone Joints.

A 3T MRI would yield High Resolutions. But of course, Higher Resolutions MRI's are going to Cost More.
 

Mordacai

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Also an interesting fact @zoiDman, as the resolution capability of an MRI scanner goes up. You get more artifacts and noise in the images.

So perhaps the cost is increased even more by this, as how many images will be not of satisfactory quality and therefore unusable?

And the one of the gold standard immaging studies for joints I believe is CT with contrast?

But they have to inject the joint with radiotracer, which as medics usually put it causes mild discomfort.

Yhea, right.
 
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zoiDman

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Also an interesting fact @zoiDman, as the resolution capability of an MRI scanner goes up. You get more artifact and noise in the images.

...

And I think Patient Movement can have Greater Blurring Effects. Even with all the Image Stabilization and Correction post-process software that is used.

My Doctor works out of an Orthopedic Center where the Entire building is dedicated to Orthopedic Problems. On the 2nd For are the Office Support, Exam Rooms and Shared X-Ray. And on the 1st Floor is the MRI Lab.

Since just about everyone who has a MRI done there probably has a Similar Problem, Hand - Foot - Knee - Hip, I imagine that a 1.5T MRI can cover just about anything they stick into it.

And if for some reason they Need a Higher Res Scan, they can refer you to another MRI Lab. Or to the Hospital that is about Block away.

CT can/does have Better resolutions. But there can be Concerns about Radiation exposure. Especially if Multiple scans might be needed over a Short period of time. Or if the Patient might be in a High Risk Category.

If they wanted to do another MRI Scan in 2 Weeks and then said I needed Surgery, followed by a Post-Surgery MRI Scan, I wouldn't have a Problem with it.

But I'm not sure How Comfortable I would be in having 3 CT Scans in such a Short Period?
 
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