Radiologic Sciences

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@destinyperez5913 6 ай бұрын

So helpful! Thank you !

@maryhood1381 7 ай бұрын

Increasing kVp does NOT increase the amount of scatter photons produced( 2:40). As kVp increases, the photons are more likely to pass through without interacting at all. If they do interact and scatter, they will scatter with greater retained energy and are more likely to reach the IR, thus causing worse scatter fog despite fewer raw numbers of scattered photons.

@shonima1453 7 ай бұрын

Hi, can tell me that radiation exposure to reduce by use of digital radiography

@noonereallyknows6643 7 ай бұрын

2:20 you said mA we selected adjusts the rheostat and sends the current to either large or small focal spot. I think you meant to say it sends the current to either large or small filament correct? From what I've learned the focal spot is located on anode itself. Am I getting this right? Also, thanks for the video - very helpful

@thevoiceharmonic 7 ай бұрын

I presented papers at the national conference in Australia in 1988 and again in 2016 because radiographers did not know that pushing the tube angle button and angling did not change the relationship between tube focus and patient. The only thing that changes with tube angulation is collimation. At the last conference there were 120 qualified radiographers and only 25% knew what happened when the tube was angled. kzbin.info/www/bejne/o4uzdZKdgdhoetksi=e5HMqOBuOfOlomlu. Some of the xray tubes I used in the early 80s had 1mm small focus and 2mm large focus, so nothing was sharp

@thevoiceharmonic 7 ай бұрын

Compare an uncollimated maximum body and gonad dose lateral lumbar done in India kzbin.info/www/bejne/sH6kl3qkjs-Fgtksi=idex2JnK-RcJEJDM. with the clarity of tightly collimated lateral lumbar spines I produced routinely kzbin.info/www/bejne/aGaYi2uaqbWBps0si=147y1V9pci_yk37b. My technique perfected radiographic positioning because I used collimation as my positioning guide rather than centring points and 'rules of thumb'. kzbin.info/www/bejne/aoiUmGOLi7R6p5Isi=xXT4MFHjzOT7AHOf

@pavansaini5275 9 ай бұрын

❤❤❤pls upload more videos

@Geri_kariba 9 ай бұрын

How to we use airgap technique in mammography? The detector and the breast rest is all together in one table right? Could you please explain this? Im a student and not the brightest 😭

@clarissaagdelina3201 Жыл бұрын

great explaination! can we count the the spatial resolution of an image? do you know the formula or how to do it? thx

@zeena7135 Жыл бұрын

Thanks!

@13642690 Жыл бұрын

Can I ask a question? I want to know about XRD tube , and how two wire are connet to the connector

@eveneary116 Жыл бұрын

"Elections are optimistic" 🙂➖➡️➕😃

@JJ-en7pm Жыл бұрын

The man in the beginning was so 💅🏻

@LeonSun-n8w Жыл бұрын

Thanks for sharing!

@thevoiceharmonic Жыл бұрын

To use a focused grid successfully you will need to understand the geometry of each projection. Tube angulation only changes collimation, so the beam can be directed toward the edge of a grid without any cut-off. Here is the test that 75% of qualified radiographers fail. kzbin.info/www/bejne/o4uzdZKdgdhoetk

@amal-5700 Жыл бұрын

Thank you 💕💕 can i have the reference for your study?

@ellecrofttt Жыл бұрын

These videos are TOTALLY helpful. Post more related videos please.

@abdovitamins6331 Жыл бұрын

Wow, this is fabulous.

@genesiscasas1104 Жыл бұрын

Great explanation!! Thank you 🙏🏽

@abdovitamins6331 Жыл бұрын

❤❤

@abdovitamins6331 Жыл бұрын

Wow More than expectations Thank you sir

@asgharbeigi9718 Жыл бұрын

Just amazing. Thanks

@ellecrofttt Жыл бұрын

Your explanation makes so much sense. Please make more Radiography related videos.

@courtneyhernadez3250 Жыл бұрын

macam mana nak buat?

@abdovitamins6331 Жыл бұрын

Sir i am so confused. According to what you explained and also as mentioned in Farr's physics ( increasing kV dose increase scatter, and decreasing kV does reduce scatter) The RCR put a sample of MCQS, one of them was : High energy radiation is scattered more than lower energy radiation. Then my answer was true, but when i went to revise my answer infound it false because there answer was false !! So i am so confused. Can you help please?

@michael_nel Жыл бұрын

Lots of people find this confusing. Increasing kV results in less attenuation and less scatter radiation (more of the x-rays are transmitted and less are attenuated via photoelectric effect and scattered via compton). It is the photoelectric effect and compton scatter that contribute to anatomic detail and spatial resolution. At higher kVs compton scatter is proportionally more than photoelectric effect despite both being reduced at higher kVs. At lower kVs photoelectric effect predominates - therefore, there is proportionally less scatter. I hope this makes some sense. At low kVs there is technically more scatter but proportionally there is more scatter at higher kVs.

@abdovitamins6331 Жыл бұрын

@@michael_nel thank you for your interaction, you can say that i started to understand it but not completely however I'm still searching for it

@ysadigaysadiga7035 2 жыл бұрын

macam mana nak buat?

@josuebatistaruiz9818 2 жыл бұрын

You videos are Awesome

@shicksr1 2 жыл бұрын

Man I love this video. Your visual explanation will definitely help me on my boards

@dmitrymishunin1763 2 жыл бұрын

More matter - more scatter

@godgeneralsrevival7501 2 жыл бұрын

Thank you but but your speed calm down

@ellios5734 2 жыл бұрын

The subtitle is whole another story lol

@ellecrofttt Жыл бұрын

I wasn't watching it with subtitles on, and then when I read your comment I turned it on, I see you're right. Lol

@ellios5734 2 жыл бұрын

Very helpful thanks a lot

@ellios5734 2 жыл бұрын

Thank you so much

@1djricky 2 жыл бұрын

Soccery 🤣

@abdovitamins6331 2 жыл бұрын

Brief and informative, thank you sir

@dargindarginec9561 2 жыл бұрын

а что это было?

@lucasfeitosa_ 2 жыл бұрын

What happens after with an electric photon ?? Is it possible to produce bremsstrahlung inside the human body through this interaction ??

@KuumaTheBronze 2 жыл бұрын

As you knock electrons out of their inner shells you produce secondary radiation in the form of Characteristic radiation, rather than Brem, which can then continue the process of scatter as the secondary radiation interacts with tissue/matter around it.

@thefoodiechannelcookingfro1822 2 ай бұрын

@@KuumaTheBronzeit can even cause inverse Compton scattering.

@abdulazizalsharji636 2 жыл бұрын

Thank you so much ♥️

@kerrishepard3000 2 жыл бұрын

Best explanation yet! Thank you!

@freddymendez4698 2 жыл бұрын

EXCELLENT EXPLANATION. THANK YOU VERY MUCH.

@duelbuster123 3 жыл бұрын

I'm having a test for applying for a new job. this helps a lot thank you so much

@esteph0812 3 жыл бұрын

I understood so much from this video! Thank you!

@Nmomo8691 3 жыл бұрын

Love ur tutorials

@megansink9569 3 жыл бұрын

This series of videos have helped so so much! Thank you!

@ephremhailemichael18 3 жыл бұрын

You're the man bro .You answered all my questions.

@sumayyazumii8616 3 жыл бұрын

thank u dr

@minseobyeon3353 3 жыл бұрын

don't electrons travel in the same direction as arrow points?????? that's what my physics teacher said?

@nikkiw3856 3 жыл бұрын

Hi, I can't be exactly sure, but I believe your physics teacher may have been inferring that the direction the diode is pointing correlates to the conventional electric current (electricians practice under the impression that electricity flows positive to negative as a result of Ben Franklin's discoveries). Physicists know that current is in the direction of electron flow, which is opposite the direction from where the diode is pointing.

@alexwang007 Жыл бұрын

The "conventional current" flows from positive to negative, towards where the arrow points of a diode. Electrons, flow from negative (cathod) to positive (anode)

@MrRamirosa 3 жыл бұрын

this saved my life... an excellent explanation.

@eima1486 3 жыл бұрын

Thanxx from libya 🇱🇾

@vjdas6 2 жыл бұрын

what do u do

@fcrick6967 3 жыл бұрын

thank you

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