Will the Body Scanners at airports make us safer?

3d scanner youtube image

John

As a MRI Technologist with 15 years experience in diagnostic imaging, I can assure you beyond a reasonable doubt that the "body scan" machines will be virtually useless in detecting explosives.

Let me explain why. The macines use radio frequency "millimeter waves" to detect what's hiding under your clothing. It is very similar to radar in that it bounces a pulse of rf at a 3d target and then a computer compiles the data into a 3d image that you can "see". The reason it won't work is because it only does a surface rendering of the object. Thus, if a pliable explosive were used and molded to the body or placed in a skin fold the scanner would never see it. Theoretically, you could smuggle literally POUNDS of high explosives through one of these gadgets without notice. What "will" work? Xrays in the form of a tomographic scanner. But that's not going to happen because of the radiation dose and the cost. So, who benefits from body scanners? ahem..... General Electric and their ilk.

Take it or leave it. That's the stone cold truth boys and girls.

Source(s):
http://www.tsa.gov/blog/2008/05/which-is-it-millimeter-wave-or.html
Truthseeker, I'll have to disagree with you on two points. First, backscatter machines like millimeter waves only offer a surface rendering. If you want to have contrast of density then you must use higer doses. Secondly, the dose in minute? How minute? How much exactly is "safe"? Perhaps you should google the Linear Non-Threshold Dose response relationship involving xrays. There is no "safe" dose.

Answer
Uh, no. But the manufactures will get rich. The jokes will fly at the scanning stations & watch for a lot of embarassing Youtubes.

Is it possible to locate cholesterol clogs in specific arteries?

james

Hypothetically: You go into some kind of scanner and a 3D model mapping all of your arteries shows up on the computer. The scan also picks up on any stagnant cholesterol. So a doctor can visually see if there are any severely clogged arteries.

^ That was a very arbitrary example. But you get my point...

Is there a test out there that can detect atherosclerosis in a specific location in the body? Maybe even measure the amount of cholesterol / the severity of blood flow restriction in that specific artery?

If it does exist, do we have some kind of procedure that can definitively correct the problem using this information?

Hereâs another hypothetical example: You have a severe blockage in your common carotid artery and stroke is almost immanent. Since we know exactly where the problem is, surgeons rip the artery open and take out the fatty substance.

*If there is no way to locate the specific sites of clogs, wouldnât ^^^ be a plausible cure for stroke and heart attacks if we DID have the technology? Itâs crude, but they already do surgery on major arteries like they aorta. They already know how to stop hearts and shit. Iâm pretty sure they could do this.*

Answer
Yes. The first video is how to find arterial blockage, the second video is how to correct arterial blockage and the third link is how to help avoid both these procedures. :)

Heart Animation: Coronary Angiography (Cardiac Catheterization) >>>
http://www.youtube.com/watch?v=kY5gKdFWT3k

Coronary Artery Angioplasty (PCI, Heart Stent Surgery) >>>
http://www.youtube.com/watch?v=N7nghr9TpSU&feature=iv&annotation_id=annotation_32129

Homocysteine the Silent Killer >>>
http://www.squidoo.com/homocysteine-hcy

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