Radiology Retreat

[unkempt matrix]

A forum post for @rough sapphire to nerd out!

I think the maths and physics behind MRIs are so damn cool.

I'll have to look into that again.

[rough sapphire]

https://tenor.com/view/bloxxster-autistic-child-area-shea-studios-discord-video-call-gif-18601412

[lilac saffron]

MRIs: For when a CT just won't do

My ex husband got asked to leave the MRI room when I was getting a scan done because they were worried the metal in his tattoo ink would heat up. That's when I was like, ok this machine is powerful AF

[unkempt matrix]

I'm in this picture and I don't like it.

[unkempt matrix]

Didn't Mythbusters tackle that one?

[rough sapphire]

oh yeah, my nan had to get frequent MRIs when she had myeloma and she said the magnet Made Her Feel Weird

not claustrophobic at all, the magnet was just so strong it enacted a Physical Sensation

[rough sapphire]

when we vet MRIs at our hospo we have to check for any potential metal filings or remnants in the eyes from previous manual labour type work 🫣

[unkempt matrix]

In the eyes or in the eyes? 🫣

[rough sapphire]

like IN the eyes, tiny fragments can get left in there, non-symptomatic unless theres, u kno, a massive super powered magnet

[strange abyss]

Ages ago I did look into applying to become a radiology tech, but due to circumstances that didn't happen. Which is why I have a soft spot for radiology. Appreciate this retreat

[unkempt matrix]

That is still terrifying

[rough sapphire]

tbf not as bad as the whole "any large metal in the room tends to become a very fast human-seeking missile" thing

that poor kid who got like, mulched by an oxygen canister that got launched into the scanner while he was being scanned 😭😭😭

[oak star]

CTs are cool too
https://www.youtube.com/watch?v=pLajmU4TQuI

[rough sapphire]

WHOAAAAA

[plush orbit]

I had a MRI a few weeks ago and was surprised that dental braces were no problem. They just distorted the immediate area around them.

[rough sapphire]

hreifwocjekfjwofjwlfshvsfhekfjskcjdg

[rough sapphire]

yep! non-ferromagnetic metal isnt A Hazard but it can heat up and distort images, so there tends to be rules around the strength of the MRI thats used when metal is present

oh, also, would anyone like to see MY BONES from when i broke my hand at 16

had pins

[unkempt matrix]

I really do, but also I very much don't.

[rough sapphire]

geolocate these images

[unkempt matrix]

I guess you're not welcome in r/neverbrokeabone

[rough sapphire]

lost that privilege at 7 when i lost a fight with a swing

[plush orbit]

Here's my head. These is like a reflex against sharing medical information, but I don't expect anyone to be able to dox me through this, and it's a normal brain, apparently... https://cdn.discordapp.com/attachments/987009222132781117/1164581403996983429/image.png?ex=6568a5f3&is=655630f3&hm=31166eb64aa06ffdbc7df98f78f0d843c51f7db232eb9b232f1337afa88d9a18&

[rough sapphire]

10/10 you do have a brain, very good, thats an important organ

[unkempt matrix]

Oh, hi Kevin, nice to see you here! I'd recognise that brain shape anywhere!

[plush orbit]

Yes. I'm waiting for someone to ask me if I have a brain, so I show can them this.

[unkempt matrix]

Your brainstem (?) looks like a cute little seahorse 🫣

Are we all secretly piloted by seahorses?

[strange abyss]

I just can't understand how they were able to do, or even derive, the math required when they first invented rotational scanners (or what the proper term is). Good thing conspiracy people are so intellectually disinterested because that's ahead of its time imo.

It's basically massive convolution matrices right?

[lofty moss]

Hmmm, I get the impression some of the sulci are quite large, but I'm more familiar with fMRI than regular MRI. The ventricles appear to be fine tho

[karmic snow]

I don't like reddit, but technically I qualify. (I have been missing a few since I was about ten, though.)

Sadly no radiological evidence.

[rough sapphire]

wh

missing

bones?

[unkempt matrix]

Hey, bone theft is a serious problem. It's not a joke.

[lofty moss]

We have less bones as we age as they fuse together

Also I do qualify as well, I never even sprained an ankle

[karmic snow]

It's not that, I have three fewer than the standard 206 - they were surgically removed.

[lofty moss]

Oh

[atomic cloud]

I have tattoos and have had multiple MRIs. Never had any issues. Maybe it's older tattoos...? Although some of mine are 20+ years old.

[atomic cloud]

This is like some wild Rorschach test because I swear I see a woman with a big butt holding her hands with a bajillion fingers out in front of her

[atomic cloud]

Oh, snap

[strange abyss]

That's what I saw too, but I thought I was the only one.

[atomic cloud]

Maybe she's shooting lightning from her hands, in which case, @plush orbit I think you might have some dormant magical powers

[strange abyss]

That's the cool interpretation

[unkempt matrix]

DON'T SAY THAT! You have to keep in mind that the insufficiently ossified (like @rough sapphire) are present 🫣

[atomic cloud]

I blurt laughed and scared my cat. He is glaring at me so hard.

[rough sapphire]

HEY IT WAS CRUSHED BY A HUGE WOODEN SASH WINDOW

MY HAND IS PERFECTLY SUFFICIENTLY OSSIFIED

[atomic cloud]

No judgement, they took a chunk of my pelvis out when I was younger. So perhaps I am the insufficiently ossified one. What a burden I suffer!

(I do not suffer at all, at least not from that, only from the crippling burden of life under late stage capitalism laugh/cry)

[unkempt matrix]

Nah, that's just normal depression. Everyone gets that.

[lilac saffron]

This MRI also happened in....2004 so it could have been an older machine?

Possibly before the Myth busters episode? Haha

[strange abyss]

So I mentioned it above. But I would love to learn to code a simple MRI decoder

It's sci-fi in the 60s, but now I expect it to be a single liner in scipy

(it's ok if you include the imports with a semicolon)

[smoky cobalt]

Neuro research?

[lofty moss]

Yeah, I'm a psychologist and a computational neuroscientist

[smoky cobalt]

Very very nice

When I was 18 I wanted to work in Neuropsychology. Very fascinating field