That's a good question. The problem with AXR is that it's not very specific, meaning a particular finding could be present in a variety of pathologies. On AXR, the main finding you would get for ileus / obstruction / mega colon would be large bowel dilatation. To find the specific cause you would most likely need a CT scan and obviously the history will help guide you.
great question. It's because the shades of white/black in an xray are inverted before interpreting it. If the colours weren't inverted, you are right that too much exposure would create whiter images. If you google images of non-inverted xrays you will see how bone is dark and air is white. Hope that helps!
@@littleariel1288 yes I think greyscale inversion makes interpretation easier, as seeing details in dark colour is easier than in light, though not 100% sure!
Comment any ideas for future videos you'd like to see! 😀
Thank you
You're welcome. Thanks for watching. I hope it was useful for you! 🙂
Omg thank u!
U explained it well
It was amazing . Thanks
Thank you 🙏🏻
This is good! The video is so simple and easy to understand!
Thank you, Faradila! I'm glad you found it useful 🙂
very useful
How do you tell the difference between ileus or toxic mega colon vs an obstruction on X-ray?
That's a good question. The problem with AXR is that it's not very specific, meaning a particular finding could be present in a variety of pathologies. On AXR, the main finding you would get for ileus / obstruction / mega colon would be large bowel dilatation. To find the specific cause you would most likely need a CT scan and obviously the history will help guide you.
amazing
Thanks :)
Hi. I'm wondering why too much exposure produces darker images instead of brighter ones? Thank you in advance.
great question. It's because the shades of white/black in an xray are inverted before interpreting it. If the colours weren't inverted, you are right that too much exposure would create whiter images. If you google images of non-inverted xrays you will see how bone is dark and air is white. Hope that helps!
@@medicinemadesimple6273 woow! This is new to me 😅 what is the reason for inverting the colors? Is it easier to read?
@@littleariel1288 yes I think greyscale inversion makes interpretation easier, as seeing details in dark colour is easier than in light, though not 100% sure!
@@medicinemadesimple6273 thank you so much for your explanation and response. Hoping to learn more from your channel! ☺️
No problem, happy to help!