Will Creene

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@samuelvernon2397 2 ай бұрын

U should go step by step with bone and lung... especially when writing out number line

@ziafezi4047 4 ай бұрын

As a radiologist in the making this helped me tonnes! Thankyou so much!!!

@champsrt21 5 ай бұрын

amazing!

@Ayat_Rad_Tales 5 ай бұрын

Very informative , thanks for sharing

@BlessUpDiHerbs 6 ай бұрын

do the ct boards make you do math questions about this type of thing or is it more general familiarity?

@brunoknox295 6 ай бұрын

Thats just not true in 80 and more % of the cades that increasing the pitch is decreasing the dose ore the other way. Show me a scaner where this is the case in dose modulated scans (there is no one). Thats only true with scaners during not dose modulated scans with GE and Canon. Because there are working with ma and not mas like siemens or Philips.

@juhasznandor6349 6 ай бұрын

Simple & easy to understand. Thank you!

@danielking2604 6 ай бұрын

Thank u sir. U are a life saver. U made the concept easier to understand.

@wildanHayadinhanya 7 ай бұрын

Nice job .and thank you

@expositosmith7739 8 ай бұрын

As before, clear, complete and simple. What is not easy.... Thank´s for your job.!

@expositosmith7739 8 ай бұрын

Clear and great explanation. Thank´s for your job !

@anaghanp7227 9 ай бұрын

Very informative Thank you sir

@anaghanp7227 9 ай бұрын

Very informative Thank you sir

@ramjoshi4019 9 ай бұрын

nice explanation sir...

@user-fv9tb9no6h 9 ай бұрын

i feel like im watching blues clues again. thank you this is amazing. 😭

@user-fv9tb9no6h 9 ай бұрын

amazing video thank you! For those studying with MOSBY pg 91 and a practice question say the generator is now house IN the gantry.

@user-fv9tb9no6h 9 ай бұрын

omg this saved me THANK YOU!!

@thibautmodrzyk6215 11 ай бұрын

Very well explained !!

@thibautmodrzyk6215 11 ай бұрын

Very well explained !!

@alexalex78 Жыл бұрын

Great video. Who assigns the the WW and L? Is it the same for all vendors/machines?

@aditimishra5853 Жыл бұрын

Wonderful explanation

@alexalex78 Жыл бұрын

Thank you very much. Very informative.

@TheNettforce Жыл бұрын

Thanks for the explanations, keep up the good work. One clarification is that at pitch greater than 1 there is typically not a gap and the data is not undersampled. There is less than a full scan of data but reconstruction can still be very accurate in this scenario. I know some books show this as a gap but this is a misnomer. Above pitch 1.37 or so is where data starts to be missing depending on DFOV.

@thecreator1127 Жыл бұрын

Thank you so much :)

@thecreator1127 Жыл бұрын

Thank You So Much

@psays Жыл бұрын

Very helpful thank you!

@Minha-li4fk Жыл бұрын

Thank you! your explanation is perfect !

@___Laura Жыл бұрын

This video is amazing at explaining the scanner. Thank you so much!

@gurudattthakkar Жыл бұрын

Very nice explanation

@blackheavy6781 Жыл бұрын

Thank you

@dianang5722 Жыл бұрын

Can I please clarify - increasing pitch will increase noise? Therefore increasing pitch will decrease signal noise ratio, leading to poorer contrast resolution

@will_creene Жыл бұрын

Hi Diana, thanks for the question. Signal to noise ratio is essentially a function of how much information you are collecting. Anything that decreases your radiation dose from the source is going to decrease the total amount of radiation hitting the detector, and decrease our overall signal. Less signal means more noise. Regarding pitch - if the pitch is higher, that means the patient is moving through the scanner faster relative to the speed of gantry rotation. There is less exposure time per volume of body tissue, and for pitch >1, there "gaps" in between helical rotation in which information is not acquired from all sides at all levels in the Z-axis. All of this combines to mean less radiation dose to the patient, less radiation to the detector, less signal, and thus lower signal to noise ratio (= more noise!) Hope this makes sense :)