It’s way too hard to scan and regocnize all the scene from MRI, so the doctors have to watch ‘their’ zones they are paying high attention. They claim which one of the zone are clear or not.

So Foreman was ‘lucky’ to look exactly where the clot is and ‘lucky’. Others should to monitor their sectors. House could look at another trouble-free sector and see nothing. It’s kind of induced tunnel vision that drivers have in high speed (and the final cut is just to approve my guess).

As I understand, the blood was used as a contrast agent in this case. As I see usual scans and graphs (like in MRI section in Wikipedia) they are all the scans of static planes but in this case MRI was used as controlling device that shows ONE plane but on a time scale.

So, there maybe an interest in dynamic time-spatial picture on a choosen plan but the spatial snapshots of different planes.

So, House did use MRI as a hacker and bear a respect for this.

This Ep is attractive to myself, so I can get an brain atlas and TRY to figure myself.

To explain the reasoning (or, at least, my understanding of it, that is):
Let’s say that the patient is, instead, a computer with a worn power cord. Let’s say you need to replace that cord. If you turn the computer on, and have programs running, and you’ve just finished typing up your resume (let’s pretend the word processor doesn’t auto-save), and you’re painting something by hand in Adobe Photoshop, and you cut through that power cord, you will lose all of that data. And your computer might suffer hard drive damage, etc. (You’d also get electrocuted, but that’s not really applicable to a patient and doctor). Now, if you shut your computer down properly, then cut off the power cord and replace it or whatever, and then turn it back on, everything is fine.

Something like that, I think.

Can someone back me up/correct me?

Also doesn’t it take longer to cool someone down that much? Or did they just speed it up?

Likewise for the heart tumor – does the explanation that it was growing along the heart wall carry any merit?

Finally, I’m interested in Peter’s comment above… would removing the clot have actually made things better? What if it was only a partial clot, so some blood was getting through?

(As for the magnets, I just assumed the bolt was made of titanium or something.)

At the end of the Episode, House is seen chopping up some pills with a razor blade, and making lines, as if to snort them. Wilson asks if he’s treating his blocked nose with cocaine, yet House claims it’s Benadryl with a new delivery system.

Wilson’s next line goes something like “It’s all about speed, isn’t it? You like doing things quickly.”

Amphetamine (speed) is a powerful decongestant, one of the most potent available. That is almost certainly what House was preparing.