Introducing MRI: Artifacts (46 of 56)

www.einstein.yu.edu - The forty-sixth chapter of Dr. Michael Lipton's MRI course covers Artifacts. Dr. Lipton is associate professor radiology at Albert Einstein College of Medicine and associate director of its Gruss Magnetic Resonance Research Center.

[@starsign5188]

Your lectures made MR physics pretty much understandable . Thank you sir for making it simple

[@wilsde00]

This was a great presentation, live. However, the VERY low resolution video submitted to TH-cam (360!) obfuscates most of the artifacts discussed. Any TH-cam presentation of image quality should be of a higher quality than the artifact examples, in order to observe the faulted against ideal examples.

[@orenaofer]

Veterinary radiology resident here. Thanks for the shoutout🙂

[@geraldinerodriguez8372]

amazing presentation, lucky students!

[@mariamfibrahim8718]

Because of ur lectures, I got an A in physics exam! Thank you so SOOOOO much!

[@prabhashchjha2009]

very nice lecture,
very simplified form,

[@arthurjyong]

For reference: Gibbs (Truncation) Artifact 7:26

[@AbcAbc-lu7vd]

Hi wonderful presentation. Can I ask if cross talk, cross excitation and slice overlap artifacts are the same?

[@gingershock]

Can you add a section on motion correction with Prop/Blade/Multivane please? Thanks vm for your awesome content 🙏

[@neerendrasingh6097]

Hi..
Is it possible to divide artifacts in terms of: Magnet/RF /Gradient/Protocols

[@carlam6669]

I would be interested to hear which artifacts interfere with a doctor’s diagnosis and which are just an annoyance that is ignored. I am a retired engineer not from the medical field who has found this lecture series extremely interesting.

[@neerendrasingh6097]

@Carlam 666
In India all artifacts diagnosed by Engineer only.
Technologicst only report that they are getting not good images in MRI.

[@md.marufbhuiyan9864]

Dear sir, i am a MRI technologist work in a hospital at Dhaka, Bangladesh. Your lectures improved my knowledge on MRI so much. Thank you for your valuable lecture and who upload it in youtube.
In my parctice i observed that there is too much noise/grainy artifacton image in gradient or, Haste images during the lights of mr room turned on. And scan after turning lights off, the noisiness or grain in image gone, so there is improvement of SNR a lot. Is this a artifact? How lights can effect noise in image, can you explian this? I am working on siemens magnetom aera 1.5T MRI scanner.

[@guitarprofly]

That is herringbone artifact because of RF interfearance. The alternate current of the filament of some lamps emit radiofrequencies that can be recieved by the mri's antenna.

[@cindyguevara3175]

Spin echo cause of the 180 degree refocusing pulse!!!!!

[@mafaqkhattak1704]

The chemical shift artifact is not well explained۔ other wise Good explanation.