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What IS sampling frequency? I know we calculate it based on the Pitch / DELs etc, but what is its significance/what does it represent? I must be missing something significant because I've looked everywhere and I can't figure out if it's anything other than pointless extra measurement somebody came up with; it feels like I'm being told "The Abracadabra Value of the FPD is equal to twice the pixel pitch". Okay, the abracadabra value is 1mm; why does it matter, what new information does this give us we didn't have before, and why do I care? Why did I make up the abracadabra value in the first place? I have the same questions for Sampling Frequency. It's 2mm^-1, why does that matter? What do I know now that I didn't know before? I know we say it's another way to determine DEL size, but so is the abracadabra value, so is the Sampling Frequency and the Abracadabra value equally useful? Can someone please unlock this for my brain to understand before I end up in a mental institution.

Don’t be highly worried about CT dose actually doctors and medical workers try to use lowest dose for patients and the risk of cancer caused by CT scan is just theory with the low ratio about 0.002-0.04% Otherwise, DPL parameter is not the total amount patient absorbed , it’s the dose of CT scanner.

studying for my boards, thank you for your content!!

get rid of the music please, it makes it very difficult for me to hear you or concentrate on what you're saying. if I wanted to listen to music I'd be googling billie eillish not x-ray tube voltage potential

Your videos are a brightness(Density) in my dark world. I have my exit exam coming up followed by my ARRT boards. I don’t think I’ll pass but I know by watching your videos I’ll understand and improve thank you

Thanks Soo much For this no much formation about ct cardiac

Hi boss can you do video on ct calibration

Hey boss can you do video in ct calibration please

Where can I get Info re Isouve. I am very allergic??

What if you are allergic to Isouve ??

Dear sir, Is there any kind of side effects due to radiation while working in radiology department please reply i am very confused 😢

Dear sir, Is there any kind of side effects due to radiation while working in radiology department please reply i am very confused 😢

Thank you so much for the video, It is very helpful for me to improve my occupational knowledge.

Hello Dear My X-Ray Is Not Making Any Movement. I'm not even having an exhibition, I'm having trouble fixing it, can you help me?

I am in need of some clarification. For pulsed fluoroscopy, I understand that a grid-controlled xray tube is utilized. However, I am having trouble narrowing down the specifics of this "grid". One textbook says it's the charged focusing cup, another source mentions an extra hardware component (charged wire mesh), placed between the cathode and anode. Is it one or the other, or both? Thanks

This is really helpful, thank you

Isn’t this just ohms law

Omg, finally i found information i needed.

Thanks for your great explanation 😊..

Excellent video! Thank you so much for your time and expertise, I feel much more familiar with DICOM now!

i legit love hearing Kermit the frog teach radiology to me

excellent man

From where this conversion factor come from ? i mean this 0,25 and 0,03

. Which of the following system can deal with HL7 and DICOM messages? A. Picture archiving and communication system B. Radiology Information System C. Hospital Information System D. Billing system I need your help answering this question

How dangerous are CT scans ? I had 2 abdominal CT scans, I had a shield over my groin.

Thanks a bunch, you really made it easy for me to understand the topic :)

Thank you very much, really helped me

Serious questions, how can i cite this? I need to put this in my article😭

For an abdominal Ct Scan that had 152 mGy*cm -- is that a lot of radiation? How much in msv? I know they grade CT scans like 1-8 sometimes? Chest Xray is .01 ?

@howradiologyworks, Is there a significant impact to MTF and final image clarity based on the original LSF and Focal Point measurements?

Thanks alot for explaining in detail. Sure different vendors use different standards of PACS?

You will not be able to cross train into US with a RTR . Separate schooling is required. MRI/CT/MAMMO yes

Thank you for the helpful videos on your channel from a first year student. I have a question about the depiction of photoelectric absorption please: I see that you have an x-ray emitted as the characteristic radiation from the atom along with the photoelectron. I've learned in one of my modules that effectively all of the elements that make up the body have such relatively low Z numbers (and therefore lower binding energies and electron energy states) that the characteristic radiation they emit during this process would be much lower frequency - in the infrared. How common would it be for a naturally occuring element in the human body to emit x-rays as characteristic radiation?

verry clear explaind thank you, can you explain the pre detectror collimator as well.

Luckily studies have shown the heavy metals in contrast are not only good for the body, but are safe and effective! Just like the jab! 😬

Annoying music 😰😰😰😰😰😰😰😰

My 12 year old daughter just got done an xray to the pelvis and I will like to know if that will cost any damage to her ovaries and eggs. Thanks. I'm very worried about it.

sir i am 22yrs unfortunately i got one CT scan contrast of appendix 1 year ago but reports was normal and appendix was not there but i am worried about might be ct scan cause cancer or impotence in future kindly sir guide me what should i do to detox my body from ct scan side effects

Explain pitch to me like I was a ten year old

Hello sir i had NCCT first time scan of my brain 150mAs/120 kvp sir can you tell me what is the mSv has been used? My anxiety please sir Help me

Can we convert the DAP to effective dose ?

if the disease is there and it predicts it is. Isn't that a True positive

The frame rate of your video is too distracting to be watchable. Bro, if money is an issue, just buy a modern webcam. You don't need a $1500 dslr to achieve 30 frickin frames per second in your videos. But you DO need to have watchable video to retain an audience.

I will happily let you know whats wrong this image. Whats wrong with this image is that it is 2024 and your camera's frame rate is so slow the video is playing backwards

😊👍

Dear Brian, thanks for doing those fantastic educational videos that help the audience understand complex concepts in radiography and radiology! I really appreciate your work! In this video, you mentioned "spectral" reflection when talking about light reflecting off of glossy surfaces. Did you mean "specular" instead?

Thank you , these are very informative Keep up

But the badge should always be wear inside the lead aprons

This is an excellent easy to understand explanation!

As a Radiologic Technologist RT(R) (CT) and now CIIP, i can solidly say stay away from this profession! Unless, you enjoy or are a glutton for gross under appreciation, being under payed or disregarded as compared to other medical modalities with equal education requirements (i.e nursing, respiratory and others...). Sure you can formulate the moral argument for pay vs satisfaction, RT is a fascinating field but the reality is quite different on the ground, especially seeing the above disparity on the job. Stay away from Radiologic technology if you'd like a rewarding career.