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How do MRI Headphones work? (2022)

tomlingham.com

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Re: How do MRI Headphones work? (2022)

#191

Post by esperent »

lostlogin wrote: post #177
harry8 wrote: post #148

Earlier quoted context omitted.

Would you or I or anyone look less flawed if they went for us like that? Why believe ny mag? How would the author of that piece look under similar treatment? What consequences are there if the article is shown to be full of half truths and lies? By my reckoning, none. That makes it a hit piece. He may be deeply flawed, he may not be at all. I have no opinion on it and lack the necessary information to form one, even…

If you put yourself in the public eye I think you are inviting more scrutiny. Is this the article everyone is referring to? https://nymag.com/intelligencer/article/andrew-huberman-podc...

To me that is pretty much the definition of a hit piece.

Scanning through it, the allegations I spotted are:

* He is flaky and often doesn't keep appointments. * One guy says he invited him to go camping but didn't turn up * Apparently he may have slightly misled his ex about where he lived in private messages * His ex says that he has anger (purely verbal) issues * Some other people all say he has anger issues * Some incredibly spurious allegations that he had an affair

I probably missed some. But notably, almost nowhere is there any attempt to tell Huberman's side or have any empathy for him as a human being. Hence, it's a hit piece.

Re: How do MRI Headphones work? (2022)

#192

Post by lostlogin »

esperent wrote: post #191
lostlogin wrote: post #177

Earlier quoted context omitted.

If you put yourself in the public eye I think you are inviting more scrutiny. Is this the article everyone is referring to? https://nymag.com/intelligencer/article/andrew-huberman-podc...

To me that is pretty much the definition of a hit piece. Scanning through it, the allegations I spotted are: * He is flaky and often doesn't keep appointments. * One guy says he invited him to go camping but didn't turn up * Apparently he may have slightly misled his ex about where he lived in private messages * His ex says that he has anger (purely verbal) issues * Some other people all say he has anger issues * Som…

He tells stories about himself publicly and regularly. He has a forum to defend himself and gets value from what he does.

I see no indication that they approached him for comment, fitting your ‘hit piece’ comment, but does that matter? Is he off limits for some reason?

Re: How do MRI Headphones work? (2022)

#193

Post by account42 »

saalweachter wrote: post #153
throwaway2037 wrote: post #117

Earlier quoted context omitted.

Does anyone know why old aeroplanes used the plastic tube style of headphones, instead of copper wired? From the blog post, it makes very good sense why the MRI headphones are necessary in that setting. Edit: From this URL: https://avidproducts.com/2023/12/08/celebrating-70-years-of-... This type of headphones are called pneumatic headphones.

Spitballing: Cost: one speaker and tubes was probably cheaper than 200. Weight: old headphones were chunky, see above. Comfort: not wearing giant chunky headphones you weren't accustomed to might have been preferable Breakability: pneumatic headphones were harder to break, cheaper to replace Stealability: passengers would have no reason to steal the headphones, and if they did it was cheap to replace. All of these go…

Also possibly sanitation: You can probably throw the pneumatic tube headphones into boiling water without worrying about breaking any electronics.

Re: How do MRI Headphones work? (2022)

#194

Post by mnw21cam »

adolph wrote: post #184
arethuza wrote: post #162

Earlier quoted context omitted.

You need "Socks as a Service" (we could call it "SaaS") - every day someone drops off a new pair of socks and picks up your previous pair. If you pay for a premium plan then no multi-tenanting and only you get to wear any particular pair of socks.

That sounds intriguing as I like not deciding. On the other hand, I'm sure SaaS has some premium over buying outright. Since I already have the capital outlay of a washer and drier and weekly time blocked for laundry of which socks is a very small percentage, I'm not certain if it would make sense. On the other hand, if there is a "complete casual work from home uniform" service, that might be worth it as long as som…

Heck, anything is worth it if VCs are subsidising it like it's 2019.

Re: How do MRI Headphones work? (2022)

#195

Post by heavenlyblue »

4gotunameagain wrote: post #146
harry8 wrote: post #108

Earlier quoted context omitted.

ny mag did a hit piece on him which seemed to be without much substance. First I've heard of him, no opinion at all about him.

I found it did have substance. The substance was that he is also a human being, and also flawed in his personal life. That takes nothing away from his work in my point of view. I don't understand why we hold impossible standards of perfection and sainthood to successful people.

> Even Andrew Huberman, one of the most popular health science podcasters, has dabbled into anti-EMF quackery. On one podcast he claimed that his Bluetooth headphones produced notable "heat effects", implying that the electromagnetic energy was enough to produce palpable heat in his body.

If this is true it take a lot away from his work in my point of view.

Re: How do MRI Headphones work? (2022)

#196

Post by riahi »

lostlogin wrote: post #132
riahi wrote: post #24

Earlier quoted context omitted.

The RF pulses and field gradients can directly stimulate the peripheral nerves. I have had involuntary muscle twitching triggered by many pulse sequences. It’s not unheard of. It made me more sympathetic for patients who have motion in images. It could be that the particular combination of pulse sequence and their nerves don’t jive and triggers movement. Source: Radiologist (and personal experience in the bore)

If the patient isn’t twitching occasionally, the resolution is too low. We aim to be just below peripheral nerve stimulation threshold. I’m sort of joking, but if you aren’t ever getting PNS, the machine is not being run very hard. However the sensation you get in the region being scanned feels more like heating than PNS to me. You notice it more on high SAR sequences, suggesting that might be the cause. PNS just fee…

I don’t think it’s heating. I think it’s PNS because my leg will periodically twitch which I can time with the pulse sequence.

I also have some small ACL reconstruction hardware in the knee which might interact and predispose that leg to moving…

I am well acquainted with high SAR abdominal scans in a 3T from my time doing scan certification in a petmr. Even though I “know” that tissue heating from high SAR is a thing, it always surprises me when my abdomen gets warm.

Re: How do MRI Headphones work? (2022)

#197

Post by Tagbert »

DennisP wrote: post #169
Tagbert wrote: post #167

Earlier quoted context omitted.

“Trash compactor” It is an in-cabinet trash can with a mechanism to compress the trash when you push the button. I don’t know how common they really are. I’ve only know a few people with them. I could see where they might be more popular in apartments where you can’t easily take your trash to an outside trash can. They do require special, heavy-duty trash bags to handle the pressure.

What I'm talking about is an electric grinder that that sink drains into. Lots of people have them in the US.

Ah, we mostly call that a garbage disposal. They are very common.

Re: How do MRI Headphones work? (2022)

#198

Post by tsol »

aitchnyu wrote: post #126

Tangential, I saw an episode of House where he put a patient with medical implants into an MRI and they ran it for a few seconds till the burning was too painful. Was this realistic?

I remember there was an episode where this happens with a prison tattoo-- some of them can contain heavy metals that react in an MRI.

Re: How do MRI Headphones work? (2022)

#199

Post by lostlogin »

riahi wrote: post #196
lostlogin wrote: post #132

Earlier quoted context omitted.

If the patient isn’t twitching occasionally, the resolution is too low. We aim to be just below peripheral nerve stimulation threshold. I’m sort of joking, but if you aren’t ever getting PNS, the machine is not being run very hard. However the sensation you get in the region being scanned feels more like heating than PNS to me. You notice it more on high SAR sequences, suggesting that might be the cause. PNS just fee…

I don’t think it’s heating. I think it’s PNS because my leg will periodically twitch which I can time with the pulse sequence. I also have some small ACL reconstruction hardware in the knee which might interact and predispose that leg to moving… I am well acquainted with high SAR abdominal scans in a 3T from my time doing scan certification in a petmr. Even though I “know” that tissue heating from high SAR is a thing…

I used a high spec Siemens Avanto which a University owned. We used to get people complaining about PNS in the left hip and just above the bridge of the nose. It was a weird thing, and mainly happened on cardiac scans. Some found it too painful to continue with scanning.

I’ve had a little bit of PNS, but nothing that strong.

The SAR sensation of being heated from the inside is an unusual one, I’m not sure I’ve had anything else do that?

Re: How do MRI Headphones work? (2022)

#200

Post by nsvd »

Tagbert wrote: post #197
DennisP wrote: post #169

Earlier quoted context omitted.

What I'm talking about is an electric grinder that that sink drains into. Lots of people have them in the US.

Ah, we mostly call that a garbage disposal. They are very common.

Yes, the grandparent comment you're replying to also called them garbage disposal.
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