How Radiology Works

How Radiology Works

Spreading Rad Love of how x-ray and CT physics can be fun. How Radiology Works is a fun channel for Radiologic Technologists / Radiographers and students in these programs, often called Radiology School. We make x-ray and CT physics relatively painless. These topics include: x-ray generation, x-ray interactions, x-ray radiation dose, radiation biology, image viewing, and image quality.

Please support the channel by buying me a coffee: www.buymeacoffee.com/brianNett .

Transformers

Transformers

Mammography (X-ray Physics)

Mammography (X-ray Physics)

Пікірлер

  • @tawandajones957
    @tawandajones9572 күн бұрын

    Does the water based CT iv have metals

  • @vineelachengalva5670
    @vineelachengalva56704 күн бұрын

    Thanks a lot and also please share about the secondary scattered radiation effects to the technologist

  • @mm-iu4vd
    @mm-iu4vd6 күн бұрын

    شرح مميز ماشاء الله

  • @damianrenik4709
    @damianrenik47098 күн бұрын

    Hi, what about SPECT/CT or PET/CT scans? How do I calculate the dose for the whole body, should I use the "k" for the trunk? DLP from Whole Body scans is measured from 32 cm phantom, so how do I calculate the dose for the head? Is it multiplied by 2 more or less?

  • @basmaal-awaja7433
    @basmaal-awaja743313 күн бұрын

    a filtration of the music would be nice next time :=)

  • @HowRadiologyWorks
    @HowRadiologyWorks13 күн бұрын

    I wish KZread had such a feature, my new videos don’t have music. Learning along the way

  • @NikolaosStathopoulos-l8d
    @NikolaosStathopoulos-l8d16 күн бұрын

    Perfect video ! Can you explain how mAs increase the patient dose ? And how kVp influence the dose too ! Thank you

  • @NikolaosStathopoulos-l8d
    @NikolaosStathopoulos-l8d16 күн бұрын

    Perfect video ! Can you explain how mAs increase the patient dose ? And how kVp influence the dose too ! Thank you

  • @Azlan-jo8ie
    @Azlan-jo8ie18 күн бұрын

    kzread.info/dash/bejne/m2aYqtJpd7GrcaQ.htmlsi=3q74uKWMK6FK1cTO

  • @dessubefikadu4011
    @dessubefikadu401121 күн бұрын

    Please add how to improve storage full ct scan

  • @isakpubg916
    @isakpubg91622 күн бұрын

    Tq sir

  • @HowRadiologyWorks
    @HowRadiologyWorks20 күн бұрын

    Welcome 🤗

  • @AM-ql2kz
    @AM-ql2kz24 күн бұрын

    I would like to see actual numbers with and without shielding to see the actual dosage to the gonads. Not your pictures. I am registered with the ARRT, not How Radiology Works, the AAPM, or the NRCP. The ARRT says students and R.T.s have the ethical responsibility to act in the best interests of each patient. Students are still being taught to shield and it is on the registry. Technologists can not be doing one thing and students being taught another. It only takes one ray to hit a cell just right to cause damage. I will never not shield or allow myself to not be shielded on an exam where shielding does not obscure the part being examined. The actual report that came out by the NRCP was never about not shielding. It was about shielding abdomens and pelvis’s using AEC. Somehow the report has been twisted and hospitals and medical facilities are doing away with shielding. Radiologic Technologist’s who agree with the no shielding stance should not wear appropriate shielding for themselves. 😤

  • @HowRadiologyWorks
    @HowRadiologyWorks23 күн бұрын

    Thanks for your comment and your passion on the matter. I agree that ARRT has not yet adopted the recommendation of the AAPM and that the transition away from gonad shielding will take time as there is a perception that it is helping more than reality. As we mentioned there are downsides of gonad shielding which are completely different from personal shielding for technologist so please do not compare them. I agree we want what is best for the patient here and given all of the evidence the AAPM consensus statement is that gonad shielding should be discontinued and in time this will be propagated to ARRT but will take some time. Thanks again for your comment and consideration.

  • @fluorophore1
    @fluorophore125 күн бұрын

    What the heck is a "4-ker?"

  • @HowRadiologyWorks
    @HowRadiologyWorks23 күн бұрын

    Sorry we have 4 year old kindergarten and 5 year old kindergarten where I live, so just a group of little kids

  • @kimiaahangarani3844
    @kimiaahangarani384428 күн бұрын

    Thanks for your great explanation!

  • @HowRadiologyWorks
    @HowRadiologyWorks28 күн бұрын

    Thank you too! For the comment 😀

  • @NimaMohseni-eg6hf
    @NimaMohseni-eg6hf29 күн бұрын

    That was very understandable. Thanks, and i subscribed

  • @HowRadiologyWorks
    @HowRadiologyWorks29 күн бұрын

    Awesome, thank you! Share the Rad Love with your colleagues

  • @dankuselkus7241
    @dankuselkus7241Ай бұрын

    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.

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    howradiologyworks.com/digital-x-ray-sampling/ check out our post with the sampling frequency. We like units of frequency as traditionally we measure resolution in frequency such as the MTF. You can think of sampling frequency of the detector as the best that you could do on the resolution of the system and there are geometric effects and the focal spot blurring

  • @venhaicon8693
    @venhaicon8693Ай бұрын

    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.

  • @abbywiltshire2383
    @abbywiltshire2383Ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    Good luck!! You will do great Abby

  • @nerminesaid737
    @nerminesaid737Ай бұрын

    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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    Thanks for the feedback, please see more recent videos on the channel as we have dropped the music 🎵

  • @oswaldopadilla3128
    @oswaldopadilla3128Ай бұрын

    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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    Thanks for dropping the message, best of luck. Watch the videos and do practice problems and you should be good. I know it’s stressful learning all this new information.

  • @saraali-ho8fx
    @saraali-ho8fxАй бұрын

    Thanks Soo much For this no much formation about ct cardiac

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    You are most welcome, pass it along

  • @krazykrish3uk531
    @krazykrish3uk531Ай бұрын

    Hi boss can you do video on ct calibration

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    Thanks, got the request on the other video as well.

  • @krazykrish3uk531
    @krazykrish3uk531Ай бұрын

    Hey boss can you do video in ct calibration please

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    I’ll put it on the list, what specifically do you want to know about?

  • @peggyhannah5608
    @peggyhannah5608Ай бұрын

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

  • @peggyhannah5608
    @peggyhannah5608Ай бұрын

    What if you are allergic to Isouve ??

  • @sagarroy-rc2bd
    @sagarroy-rc2bdАй бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    There is some low risk of health effects associated with radiation, the risk can be minimized with proper steps

  • @sagarroy-rc2bd
    @sagarroy-rc2bdАй бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    pubmed.ncbi.nlm.nih.gov/33903264/

  • @AminSediqi-ze3ye
    @AminSediqi-ze3yeАй бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    It's my pleasure. Pass it on

  • @fernandolourenco4213
    @fernandolourenco4213Ай бұрын

    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?

  • @natalieleal7777
    @natalieleal7777Ай бұрын

    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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    ajronline.org/doi/pdf/10.2214/ajr.175.5.1751453?download=true , Figure 2 shows a picture of the grid

  • @mrzeroluck3818
    @mrzeroluck3818Ай бұрын

    This is really helpful, thank you

  • @jakerumbaugh15
    @jakerumbaugh15Ай бұрын

    Isn’t this just ohms law

  • @TheNettforce
    @TheNettforceАй бұрын

    Ohms law has to do with resistance and here we are dealing with radiation interactions in the body

  • @jakerumbaugh15
    @jakerumbaugh15Ай бұрын

    @@TheNettforce yes but it seems like the same concept. Increase voltage increases energy of the photon while adjusting amplitude controls the amount of photons passing through.

  • @vasssssson
    @vassssssonАй бұрын

    Omg, finally i found information i needed.

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    I'm glad! Share it with others too on their rad journey 😀

  • @SusmithaMalavathSusmitha
    @SusmithaMalavathSusmitha2 ай бұрын

    Thanks for your great explanation 😊..

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Glad it was helpful! Thanks for the comment 😀

  • @stevejohnson3316
    @stevejohnson33162 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Great to hear! Share the rad ❤️

  • @rickya13
    @rickya132 ай бұрын

    i legit love hearing Kermit the frog teach radiology to me

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    You’re the third one with such a complete 😁

  • @vigneshvicky6720
    @vigneshvicky67202 ай бұрын

    excellent man

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Thanks for the comment

  • @damanq6
    @damanq62 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorksАй бұрын

    pubmed.ncbi.nlm.nih.gov/25415721/

  • @retardedphill3652
    @retardedphill36522 ай бұрын

    . 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

  • @danielmcclorey6606
    @danielmcclorey66062 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    howradiologyworks.com/x-ray-ct-dose-to-background/ this post shows relative radiation risk levels compared with other health factors

  • @huemmz
    @huemmz2 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Glad to hear that! Thanks for the comment

  • @huemmz
    @huemmz2 ай бұрын

    Thank you very much, really helped me

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    You're welcome! Thanks for the comment

  • @faiznaim4152
    @faiznaim41522 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Channel Name [Username (if different from channel name)]. (n.d.). Name of page/tab [KZread channel]. KZread. Retrieved Month Date, Year, from URL

  • @apacur
    @apacur2 ай бұрын

    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 ?

  • @nicademous6396
    @nicademous63962 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    The line spread function is directly related to the MTF, the MTF is the Frequency space representation of the LSF. The blue in the image is due to the detector blur and focal spot blur

  • @alinaqi6926
    @alinaqi69262 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    What do you mean different standards of PACS?

  • @erikisaula9580
    @erikisaula95802 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    kzread.info/dash/bejne/gpqdm9yqeLC-crQ.htmlsi=fx4oswb1mIdM-NJy , here is a video on cross training

  • @MrRevertis
    @MrRevertis2 ай бұрын

    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?

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    You are right, it should be labeled photon rather than x-ray. I will update in a future version

  • @kimwagemans2081
    @kimwagemans20812 ай бұрын

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

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Will put it on the list

  • @fastenol1
    @fastenol12 ай бұрын

    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! 😬

  • @user-up9br1sh8k
    @user-up9br1sh8k2 ай бұрын

    They give a friendly guest. Yep you guessed itright cancer

  • @rubyamir5245
    @rubyamir52452 ай бұрын

    Annoying music 😰😰😰😰😰😰😰😰

  • @HowRadiologyWorks
    @HowRadiologyWorks2 ай бұрын

    Thanks for your feedback, I’ve taken music out of recent videos