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kVp & radiographic contrast explained || Ask The Rad Tech
In this video I explained the following: What does kVp mean... Why kVp is important... How is kVp applied to the x-ray tube (how x-rays are created)... What is radiographic contrast... Types of contrast: low & high... Overexposed vs. Underexposed x-ray images...
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mAs, time factor & radiographic density: kzread.info/dash/bejne/lH2Xq7CTZMmacbw.html
Thank you sooo much for the explanation! It has cleared up my confusion. This is my first semester in the Radiology program and I want to be the best Rad Tech that I can become!
@AskTheRadTech
2 жыл бұрын
Glad it was helpful!
I'm at the end of the first quarter of my rad tech program! Thank you for your videos :)
thank you so much. you should consider teaching when you get older. you are way better at explaining things better than most teachers!
@AskTheRadTech
2 жыл бұрын
aww that means a lot, thank you
Thank you for this simple explanation
@AskTheRadTech
3 жыл бұрын
You're most welcome!
I finally understand this ! Thank you ! I have been searching for a simple explanation like this
@AskTheRadTech
2 жыл бұрын
Yaayy happy that you do 😀
kVp and x-ray Contrast HELP YOU
This was throughly explained! Love the videos. We need mAs and radiographic density explained next
@AskTheRadTech
3 жыл бұрын
Happy that it was helpful .. & that video is coming soon in the line up 😄
Yes please make the video, your videos really help!:)
Great explanation! Thank you so much! 🙏🏽😊
Than Q for your explanation... ✨🤝
Which factors affect on quality of radiograph.
Could you do a video on lateral chest positioning, and how to correct rotation on lateral? just like the PA chest video you did .
@AskTheRadTech
Жыл бұрын
Hey np. I just recorded the demo so l'll get around to doing that for you 😊
@sksar93
Жыл бұрын
@@AskTheRadTech thank you. I hope I can pass my chest exams
@TejRecordz
Жыл бұрын
update? hows it going@@sksar93
Great Video! You explain things very well. At the end of the video you mentioned exposure charts. What is a good exposure chart that covers all body parts?
@AskTheRadTech
2 жыл бұрын
Heyy, glad to help. The exposure chart I mentioned is provided to the x-ray department
THANK YOU
When a radiography is too white, that means too much contracts right? If so , does that mean we then need to increase the kvp ? Sorry I get it mixed up
@AskTheRadTech
3 жыл бұрын
It depends. If you want a low contrast image (for example an abdomen or chest) but there were many shades of bright white and grey and no distinct difference in anatomy then yes, the kVp would need to be increased for more penetrability. However if you want a high contrast image (for example to see boney structures like the hand, foot, ankle etc) you need a fairly lower kVp but an small increase in density (mAs). Both factors do affect the image though. Sometimes both may need to be increased 🤷🏾♀️ Once you have good base value exposure chart you'll know which factor may need adjusting due to the size of the part being imaged. I hope this helped 😅
@charmingjandie1652
3 жыл бұрын
@@AskTheRadTech yes it did. Thanks a lot.
@AskTheRadTech
3 жыл бұрын
Happy to help ☺
I DONT KNOW IF IM OVERTHINKING, BUT mAs, I DONT GET IT HOW DO I DETERMINE IT, SOME SAY 500 MA XS 1 SEC, BUT I THOGHT MILLI WAS 1000??? HELP PLEASE ANYONE
@AskTheRadTech
2 жыл бұрын
You might be overthinking it too much. mAs = mA x time in seconds. If you multiply 500mA x 1sec you'll get 500 mAs. Just make sure that you're multiplying in seconds. If your units are in milli seconds just convert them to seconds first to avoid any confusion. So 100ms for example is really 0.1 seconds.
When the AEC doesn’t work, you have to double the MAs for a chest?
@AskTheRadTech
Жыл бұрын
AEC is not the end all be all. If the exposure isn't right I just switch to fixed (normally inputted) exposure factors based on the patient's size.
@fashnup2date
Жыл бұрын
@@AskTheRadTech yeah the pt was body habitus was thick and I chose 114/6.7 but it still came out grainy
@fashnup2date
Жыл бұрын
I didn’t want to keep exposing her😮💨
@AskTheRadTech
Жыл бұрын
@@fashnup2date depending on the tube output sometimes you find yourself having to use kVp around 120+ for significantly larger patients. 6.7 mAs already sounds like a lot. Try using the 15% rule in such a case. Increasing the kVp by 15% gives a 2x increase in exposure reaching the detector. Would help the graininess.
you are brilliant ! thanks a lot
@AskTheRadTech
2 жыл бұрын
Glad it helped!
You have a lovely accent
@AskTheRadTech
2 жыл бұрын
Aw thanks 😊
My baby had pelvic and hip x rays.. I only know that kv is 40,ma 400..and x ray image is very good.. How can i know mas is high or low for baby?..
@AskTheRadTech
3 жыл бұрын
You'll need to know what the time for the exposure was in order to know the mAs. Usually when the mA is higher it's a hopeful sign that the time should be very low which would mean that the overall exposure amount is reasonable
@swagatikapanda7683
3 жыл бұрын
In 400ma x ray mechine kv ranges??
@AskTheRadTech
3 жыл бұрын
@@swagatikapanda7683 with a 400 mA, and the fact that it's a pelvis/hip on a baby, 400 mA might correlate to 4mAs. Which is pretty decent for a baby.(especially based on size)
@swagatikapanda7683
3 жыл бұрын
Is increase or decreasea mas affect image quality??
You the best girl
@AskTheRadTech
2 жыл бұрын
🤭☺️
If all x-rays pass it would be white image ma'am..
@AskTheRadTech
2 жыл бұрын
Would you like to explain your point further? X-rays cause a degree of darkening on the film based on mAs used. Objects of high physical density would appear white or brighter as it absorbs the x-rays so less photons will hit the image receptor. There'll only be a totally blank white film if there no exposure.
Your hair is very different and you are so beautiful and your country name , you radiation technologist
@AskTheRadTech
2 жыл бұрын
Aw thanks dear ☺️☺️
@motivationalspeech_0745
2 жыл бұрын
@@AskTheRadTech I love you dear you are so beautiful and so cute 😘😘❤️