I work on Siemens Skyra 3T and the SAR pop ups is annoying!! Our rads have our scanners set up at very high flip angles (150 to 180) and on almost every scan I have to reduce it. Our "limit" is 120 for whatever reason, but most of the time it takes care of the issue. I am happy to see that it does not degrade the image quality. It is worse on Knees and Lumbar Spines. Why Knees? I don't get it. So now I am going to pay attention to the turbo factor.. These parameters were set to optimise time, not patient comfort. We schedule patients every 15 minutes.. but get behind because of these things. We are having a tech meeting today and I am going to bring up these issues.
All good points to discuss over the meeting. These are common challenges that, unfortunately, many clinical settings tend to experience. But, kudos to you for not abandoning yourself to the classic "oh, we have always done this way", showing instead proactivity and trying to improve the workflow. Sometimes a significant improvement for everyone requires just small adjustments!
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
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!
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!
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
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Thank you so much for this excellent and most helpful video.
Thank you so much. I am really glad you found the video useful 🙏🏻
I work on Siemens Skyra 3T and the SAR pop ups is annoying!! Our rads have our scanners set up at very high flip angles (150 to 180) and on almost every scan I have to reduce it. Our "limit" is 120 for whatever reason, but most of the time it takes care of the issue. I am happy to see that it does not degrade the image quality. It is worse on Knees and Lumbar Spines. Why Knees? I don't get it. So now I am going to pay attention to the turbo factor.. These parameters were set to optimise time, not patient comfort. We schedule patients every 15 minutes.. but get behind because of these things. We are having a tech meeting today and I am going to bring up these issues.
All good points to discuss over the meeting. These are common challenges that, unfortunately, many clinical settings tend to experience. But, kudos to you for not abandoning yourself to the classic "oh, we have always done this way", showing instead proactivity and trying to improve the workflow. Sometimes a significant improvement for everyone requires just small adjustments!
Reaching out to all the nbc fans Juli 😂 love it! X
🤣 🤣 🤣
Thank you so much pro
Thanks for watching
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
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!
@@everything-mri Thanks. You guys are doing a great job! Keep it up👍
Thank you
Can you please go over Grappa when to use it what to tweak
Thank you
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 😊
Sir could you please explain cardiac MRI post processing
Lv function, T1 T2 mapping,Flow quantification
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!
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?
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
I definitely agree. However, the chances of movement artefacts might increase.