SAR Reduction Techniques

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SAR Reduction Techniques - MR Parameters

Рет қаралды 4,210

Everything MRI

Күн бұрын

Пікірлер: 16

@hanthejan 5 ай бұрын

Thank you so much for this excellent and most helpful video.

@everything-mri 5 ай бұрын

Thank you so much. I am really glad you found the video useful 🙏🏻

@armangonzales7084 4 ай бұрын

Hi Julien, with regards to TR values you mentioned we have a larger threshold using a 3T scanner. Aside from having a stronger magnetic field, anymore reason regarding larger threshold with a 3T magnet

@everything-mri 4 ай бұрын

Hello. Thank you so much for watching. Regarding your question, the main reason for the extended TR threshold in a 3T scanner compared to a 1.5T is the increased T1 relaxation time at higher magnetic field strengths. T1 relaxation time is the time it takes for the longitudinal magnetization to recover to 63% of its original value after being perturbed by radiofrequency pulses. At higher field strengths, like 3T for example, tissues have longer T1 relaxation times, which necessitates longer TRs to allow for sufficient recovery of longitudinal magnetization and better contrast in the resulting images. I hope this make sense!

@armangonzales7084 4 ай бұрын

@@everything-mri Thanks. You guys are doing a great job! Keep it up👍

@francescasharif1436 Жыл бұрын

Reaching out to all the nbc fans Juli 😂 love it! X

@everything-mri Жыл бұрын

🤣 🤣 🤣

@TAHA-TOUABA-RADIOGRAPHER Жыл бұрын

Thank you so much pro

@everything-mri Жыл бұрын

Thanks for watching

@LilCash217 10 ай бұрын

Thank you Can you please go over Grappa when to use it what to tweak Thank you

@everything-mri 10 ай бұрын

Thank you for your comment. Subscribe to the channel, we will go through a multitude of MR parameters with some dedicated videos in the near future 😊

@shahnavajtamboli9166 11 ай бұрын

Sir could you please explain cardiac MRI post processing Lv function, T1 T2 mapping,Flow quantification

@everything-mri 11 ай бұрын

Hello. This is a recurrent question. Sadly, I am not the best expert as far as cardiac post processing is concerned. BUT, I am pretty sure for the future we can invite someone who can gently explain further the topic 👌🏻 stay tuned!

@laurentiumihai4332 Жыл бұрын

Very good Intel broather 🙏🏻🙏🏻 I'm playing mostly with the concatenations, it let me low the tr, even if ta will rise, what you think about this?

@everything-mri Жыл бұрын

Increasing the concatenations is a very good strategy to avoid changing the weighting of the sequence you want to perform. It can also help you to prevent some specific type of artifacts 👍🏻 well done

@manuelconte709 Жыл бұрын

I definitely agree. However, the chances of movement artefacts might increase.