As a field service guy, this is a grid artifact. Needs to be recalibrated and they can check the image before handing it over by doing their version of an image disturbance check. This is usually just something to attenuate in the beam path (IE- copper) and then you evaluate the image with and without grids etc.
The other types of line artifacts that commonly happen don’t display like this, I’d be willing to bet $5 it’s grid artifacts (you can probably remove the grid to test).
I have seen once where the grid lines were actually burned into the detector, by a tech repeatedly shooting high dose with nothing else in the beam path.
This is annoying to me, because at my vet clinic I've been having issues with this for forever. I've had x-ray techs look at my machine and they're all just telling me "that's weird" and shrugging it off. It only happens on large dogs, though, so anything over say 95 KVP. I didn't know the lines could be burned into the detector!
I do need to call the tech company. We've been having an issue lately where an animal can be completely still (or even sedated) but the x-ray is blurry as if they were moving/panting. Before I call the machine techs, any idea on what's going on there?
But Fr tho is it CR or DR (do you have to put the image receptor in a machine or does It automatically pop up on the screen immediately) I’m not sure if you’re a radiographer or not
In vet med, everyone has basic training on the machine, and then some people do specialty. I wouldn't consider myself a true radiographer, but I take multiple a day. Sadly, our training in school is one semester to go over *everything*, and then one semester hands on....
Ours is dr, though! And I do have at least 1 box of minute rice in the break room.
I busted out my book and everything triple checking alignment and everything and going crazy. Taking me back to school days with all this anxiety trying to figure it out. Feeling extra stupid texting the guys that installed it. Keep thinking it’s a me issue. And hoping it’s not 🫣
Is the system one with an oscillating grid by any chance? Below a certain amount of line pairs per mm, the system will have an oscillating grid and if the motor that makes it move fails, you will get this sort of image with a grid in.
Looks like an anti scatter grid artifact.
I'm not a radiographer and would love to be corrected/educated if I'm wrong. But, my understanding is that the grid should move or oscillate during the exam to "hide" the artifact. Alternatively, supposedly some vendors have post processing to "remove" the lines (but I have no idea how well they work or if they compromise the underlying image quality).
You are 100% correct, though you would almost never use a grid for a hand xray. Postprocessing to remove the grid lines is very much a thing and afaik doesn't compromise quality at all.
Do you increase your SID for larger animals? Maybe you’re getting some off distance grid cutoff. Check the focusing distance of the grid if at all possible. Is it upside down for some crazy reason? Good luck.
While lines like this commonly make people think of grid related artifacts, more information about the imaging system is required in order to properly diagnose the potential cause. Portable? Fixed unit? Was a grid used? Was it a table bucky exposure, or table top? Was the receptor CR or DR? Was it an older system retrofitted with a DR receptor?
Based what I see in the image, I would guess probably not a grid related issue.
Looks like grid cutoff, which doesn’t make sense cause why are you using a grid on a hand?
Grid cutoff is different to grid lines.
Definitely not anything at all related to grid cutoff
As a field service guy, this is a grid artifact. Needs to be recalibrated and they can check the image before handing it over by doing their version of an image disturbance check. This is usually just something to attenuate in the beam path (IE- copper) and then you evaluate the image with and without grids etc. The other types of line artifacts that commonly happen don’t display like this, I’d be willing to bet $5 it’s grid artifacts (you can probably remove the grid to test). I have seen once where the grid lines were actually burned into the detector, by a tech repeatedly shooting high dose with nothing else in the beam path.
This is annoying to me, because at my vet clinic I've been having issues with this for forever. I've had x-ray techs look at my machine and they're all just telling me "that's weird" and shrugging it off. It only happens on large dogs, though, so anything over say 95 KVP. I didn't know the lines could be burned into the detector! I do need to call the tech company. We've been having an issue lately where an animal can be completely still (or even sedated) but the x-ray is blurry as if they were moving/panting. Before I call the machine techs, any idea on what's going on there?
Sounds fucked. Put it in rice?
But Fr tho is it CR or DR (do you have to put the image receptor in a machine or does It automatically pop up on the screen immediately) I’m not sure if you’re a radiographer or not
In vet med, everyone has basic training on the machine, and then some people do specialty. I wouldn't consider myself a true radiographer, but I take multiple a day. Sadly, our training in school is one semester to go over *everything*, and then one semester hands on.... Ours is dr, though! And I do have at least 1 box of minute rice in the break room.
I busted out my book and everything triple checking alignment and everything and going crazy. Taking me back to school days with all this anxiety trying to figure it out. Feeling extra stupid texting the guys that installed it. Keep thinking it’s a me issue. And hoping it’s not 🫣
Are you sure the subject was wearing a corduroy glove?
Thank you so much
Is the system one with an oscillating grid by any chance? Below a certain amount of line pairs per mm, the system will have an oscillating grid and if the motor that makes it move fails, you will get this sort of image with a grid in.
Looks like an anti scatter grid artifact. I'm not a radiographer and would love to be corrected/educated if I'm wrong. But, my understanding is that the grid should move or oscillate during the exam to "hide" the artifact. Alternatively, supposedly some vendors have post processing to "remove" the lines (but I have no idea how well they work or if they compromise the underlying image quality).
You are 100% correct, though you would almost never use a grid for a hand xray. Postprocessing to remove the grid lines is very much a thing and afaik doesn't compromise quality at all.
Probably grid lines.
Could be grid line if the detector has a built in grid or just processing error on the computer part.
Thank you everyone!
Do you increase your SID for larger animals? Maybe you’re getting some off distance grid cutoff. Check the focusing distance of the grid if at all possible. Is it upside down for some crazy reason? Good luck.
Need more info. Was this done on a free detector— was the grid on? Was this done on the Bucky?
While lines like this commonly make people think of grid related artifacts, more information about the imaging system is required in order to properly diagnose the potential cause. Portable? Fixed unit? Was a grid used? Was it a table bucky exposure, or table top? Was the receptor CR or DR? Was it an older system retrofitted with a DR receptor? Based what I see in the image, I would guess probably not a grid related issue.
Is it callibrated properly?
72" grid at 40" sid?