Animals getting CT scans.


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Animals getting CT scans.
Lol rip me. I've been forgetting to schedule that bone density scan so my clinic got fed up and said they'd schedule for me, but I only just remembered what that ER doctor said last time of my approaching the risk threshold, so I had to leave a message with clinic asking what I'm supposed to do.
So now my question is, is it just cancer I'm at risk for if I hit that limit or like is the accumulated radiation in me gonna give me ARS or something lol?
AND IN BEFORE someone tells me "you're more likely to get a higher dose of radiation from X than by an x-ray or CT scan" please note that I've received multiple x-rays and/or CT scans a year since the age of eight (I'm thirty now), and the ER doc sincerely advised me against consenting to another radiology scan, despite the severe abdominal pain, unless there's reason to suspect my life is in danger, because I've had more x-rays and CTs in the past twelve months alone than most people have their entire lives.
The Lung View
In 1971, Wimbledon in London became home to an imaging revolution – the world’s first CT scan on a patient. CT scans are now commonplace, creating 3D images of organs by capturing multiple X-ray images from different angles. This makes imaging moving organs difficult. In mouse studies of lung disease, researchers have overcome this using retrospective gating (RG), capturing more images of the lungs and grouping them into breathing phases, each reconstructed separately – this takes longer. The organ’s function has been measured using another technique – X-ray-based lung function measurement (XLF). Now, a new faster technique has been developed, RG-based XLF, which measures lung anatomy and function simultaneously. Testing it in healthy and mdx mice, which model Duchenne muscular dystrophy, proved successful. Function and anatomy data (pictured) were captured in just 34 seconds. For example, the abnormal shape and position of the diaphragm in mdx mice (right) was identified when compared with healthy lungs (left).
Written by Lux Fatimathas
Image from work by Christian Dullin and colleagues
Institute for Diagnostic and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany
Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in Scientific Reports, August 2022
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If radiation is so dangerous then why is a CT scan the perfect place to take a nap? It has a weighted blanket and white noise?
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Episode 256: A new titanosaur from Kenya, footprints on Tyrants Aisle, and teaching evolution through paleoart
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Episode 256 is all about Coloradisaurus, a Triassic sauropodomorph known from a nearly complete skull that was found in Argentina.
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This is one of my favorite x-rays of an animal mummy in our collection. You’ll get to see this ibis mummy and many others in our upcoming exhibition Soulful Creatures: Animal Mummies in Ancient Egypt. In anticipation of this exhibition, conservators have been reviewing our animal mummies for stability. We’ve also been reviewing our past x-rays, CT scans and other analysis with colleagues from other institutions to compile as much information as possible.
This x-ray and additional CT scans suggest that this is a male Sacred Ibis, and that all of the internal organs were removed. Radiocarbon dating of the linens suggests this mummy is from 410-200 B.C.E.
Posted by Tina March
*lightbulb*
One of my machines has been acting super flaky for a few months; basically, the x-ray light source was not giving a constant light but was flickering brighter and dimmer. This causes weird artifacts in the final dataset, little streaks formed as the software tries to figure out what all those brighter and darker images mean when combined. The company technician was able to log in remotely and restabilize the beam, but that restabilization was lasting for less and less time until it wasn’t even lasting overnight.
Finally they agreed it was time to get a new light source.
How many people does it take to change a light bulb* on a million dollar piece of equipment?
Only one, but it does take them a week.
But it’s back, and in good shape! Which is great news because I have a backlog of samples that has been building up while I do as much as I can on the two functioning machines. Having the third back and reliable will be hugely helpful.
* An x-ray light source isn’t technically a light bulb, but hush, don’t ruin the joke.