#CT Scan

[bruneburg]

(be sure to turn the audio on, i made that tune and i like it a lot) a new animation reel! most hectical one so far.

[thepastisalreadywritten]

“(In the name?) of St Titus.

Holy, holy, holy!

In the name of Jesus Christ, Son of God!

The Lord of the World

Resists (to the best of his ability?)

All attacks(?)/setbacks(?).

The God(?) grants the well-being

Entry.

This means of salvation(?) protects

The human being who

Surrenders to the will

Of the Lord Jesus Christ, the Son of God,

Since before Jesus Christ

All knees bow to Jesus Christ: the heavenly

The earthly and

The subterranean and every tongue

Confess (to Jesus Christ).”

There is no reference in the text to any other faith besides Christianity, which would also have been unusual at this time.

According to the Frankfurt Archaeology Museum, reliable evidence of Christian life in the northern Alpine regions of the Roman Empire only goes as far back as the 4th century AD.

‘Fantastic find’ made possible by modern technology

Wolfram Kinzig, a church historian and professor from the University of Bonn, helped Scholz to decipher the inscription.

“The silver inscription is one of the oldest pieces of evidence we have for the spread of the New Testament in Roman Germania, because it quotes Philippians 2:10–11 in Latin translation,” Kinzig explained in an interview published on the University of Bonn’s website.

“It’s a striking example of how Biblical quotations were used in magic designed to protect the dead,” said Kinzig.

Peter Heather, a professor of medieval history at King’s College London with a specialist interest in the evolution of Christianity, described the discovery as a “fantastic find.”

Heather, who wasn’t involved in the research, told CNN:

“The capacity to be able to decipher the writing on that rolled-up piece of silver is extraordinary. This is something that’s only possible now with modern technology.

If they’d found it 100 years ago they wouldn’t have known what it was. Silver amulets are probably going to contain some kind of magical scroll but you don’t know what – it could be any religion.”

He added:

“You’ve got evidence of Christian communities in more central parts of the empire but not in a frontier town like that in Roman Germany so that is very unusual, well it’s unique. You’re pushing the history of Christianity in that region back.”

[heardatmedschool]

“And this is when we open the patient file.”

Radiologist when they have no idea what is going on in an image.

[misatokitten]

Quick time lapse of me at work. It’s 57 degrees in the building so don’t mind my layers lol

[trauma-and-preg]

Who got space for one or two parient during the holiday we need full intake exam check evrything off before being treated for supposed trauma for the vacation neck brace frequent code and diagnostic exam and procedure to do on us most probably high level of care if not full life support in icu and how know maybe we will find out that we are pregnant whit the blood test or more pregnant then we though like almost to term maybe only sky is me and sab limit for the 27 to the 2. We are curently 23 and 22 both female. If any medical team have question orwish us to fill paper work a head contact us in dm

[bleedingspiral]

[ethereal-intrigue]

Got a CT scan done of my lungs (I have a lung infection yay)

AND THATS A HOSPITAL GOWN NO ONE FINNA MSG ME ABOUT HOW GOOD THE FIT IS (too many such msgs…TOO MANY)

[thevoidpeeringback]

Had a Cardiac CT scan today.

Was so freaking hard as yesterday was just not my day.

Need a massive hug right now.

[radioactiveradley]

Can you tell us anything about how CT can be used to find small foreign bodies that may not have a density massively dissimilar from the body they're lodged in? The specific example in this case: Dog is going for a CT to look for a potential cat claw tip lodged in the face that is causing repeated abscesses.

Oooh! That's an interesting one.

TL;DR: there will probably be goo around the claw. We can see goo. If there is no goo and the claw is lodged in soft tissue, the amount of radiation attenuated by the claw and the soft tissue will be distinct enough for us to see. If the claw is lodged in bone and has a similar density, we will still be able to see it, but we will have to modulate the way we read the images, which will cause no extra dose to your poor doggo!

First off, we'll look for any anomalies in the surrounding tissue. Soft tissue might fully envelop a foreign object, but we still expect to see some sort of reaction - i.e., a granuloma, which can either absorb some organic foreign bodies (very freaky! very cool! you can 'eat' splinters that get stuck under your skin!) or encyst them in a capsule-like shield to cut them off from the rest of the body.

All my pictures are gonna be of humans because I know 0 about doggy CT... sorry...

Image courtesy of radiopedia

So, in the above pic, the arrows point to a surgical clip that went walkabout in the body, and wound up encapsulated! How cool is that!

But generally speaking... If the claw is lodged in soft tissue, it will be easy to spot.

The way CT works is, we see how much radiation can penetrate through each separate point within the person/pooch who's lying in the scanner's central bore. These different penetration levels are mapped onto a scale to describe radiodensity, known as the Hounsfield scale, with '0' being water, '-1000' being air, and '+1000' typically being bone.

The gathered values are then composited using greyscale (and. a very funky process that I do NOT have time to get into here but ask me about sinogram tomography later) to create images across three dimensions, with fluid being middling grey (depending on its content), air being black, and bone being white.

So, the claw will show up clearly as a different density to soft tissue, especially if it's surrounded by oedema. It should appear significantly brighter (attenuates more radiation) while the oedema will be darker (attenuates less radiation).

However, if the claw is lodged in bone and there happens to be minimal oedema and no telltale damage to the periosteum (the membranous sheathe around the bone) ... we would have to use a funky technique called windowing!

Image courtesy of radiopedia

Here's an example of windowing, using a human head. As you can see, the 'bone window' completely blocks out all soft tissue detail in the brain, but shows a lot more detail - i.e., trabecular patterns and mastoid cells! - within the bone.

Basically, there can be almost infinite Hounsfield units, depending on what you want to look at (if you're looking at, like, titanium, we'll be talking a RIDICULOUSLY HIGH Hounsfield number!) But the human eye can only see approximately

Image courtesy of a basic bitch google search

This is where windowing comes in! We can choose a certain point within the Hounsfield scale at which to generate a new image, focusing on one particular type of material. This is what makes CT so versatile!

If the claw is a subtly different density to the bone, it may not show up on a regular CT image. But by using a 'bony window' that selects a span of Hounsfield units to look at, right up towards the +1000 end of the scale, we can focus on the bone in far more detail, cutting out all extraneous soft tissue. This should give us a good idea of what's going on!

As a fun extra fact - windowing will not up the radiation dose to your poor pooch in any way. In CT, all we need to do is take a single 'picture', which compiles all the radiodensity info about our patient (be they bipedal or otherwise). We can then play around in 'post-production', so to speak, to our heart's content, producing different variations on the same image using windowing! Very nifty trick. :)

I hope that somewhere amidst my extensive rambling, I answered your question! And I hope that doggo gets better soon!

[athletearrhythmia]

How much bigger is my heart?

The left images are from a man approximately my age and height, healthy but non-athlete. Mine are on the right, avid cyclist and amateur bodybuilder.

[cincinnati-dog-slop]

had a CT scan today—the tube is a transformative experience. If I could go in there everyday of my life you would find me like clockwork 8pm? Okay I’m in the tube. Whirring. Beeping. Brain scrambling head tingles. The whole package.

[lifewithaview]

Joshua Jackson and Anna Torv in Fringe (2008) Grey Matters

S2E10

When a patient of a mental institution is submitted to an intriguing brain surgery and is left behind with his brain exposed, he surprisingly regains sanity. The Fringe Division is assigned to investigate the case and while Olivia and Peter check the surveillance footage, Olivia recognizes one of the men. She check the FBI file and finds his name as Thomas Jerome Newton, the leader of the shapeshifters that have stolen the frozen heads. They discover that the patient's doctor is Dr. Paris and there are two other patients sent to other mental institutions by the physician fourteen years ago. Soon they learn that the two patients have mysteriously recovered and the Fringe Division discovers they have been also submitted to brain surgeries. When Walter is submitted to a CT-scan, they find that three pieces of his brain were removed and implanted in the three patients. What is the intention of Thomas?

*The glyphs for this episode spell out: PORTAL

[heardatmedschool]

“That’s uglier than diagnosing a heart attack with a CT scan.”

[ionizing-zenaida]

Goretober day 8: Xray.

The dirtiest sterile experience of your life. This ain’t an X-ray, or gore, but if you know, you know.

[newhologram]

CT scan from July 2024 versus today's, with no uterus!! :O See how my guts just made themselves comfy on the bladder?

[bpod-bpod]

Risk for Rupture

CT scan study finds an increased risk of diseases in the wall of the aorta [the body's largest and central artery] called aortic pseudoaneurysm and penetrating aortic ulcer in individuals with aortic calcification, which causes narrowing

Read the published research article here

Image from work by Siting Li and Haoxuan Kan, and colleagues

Department of Vascular Surgery, Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)

Published in Scientific Reports, January 2024

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