This is a degeneration of the retina.

MRI stands for Magnetic Resonance Imaging, whereas CT stands for Computed Tomography.

I had retinal detachment five years ago.

This is the main method that I use. This is called functional MRI.

So what it's doing is, it's replacing the retinal circuitry, really the guts of the retinal circuitry, with a set of equations, a set of equations that we can implement on a chip. So it's just math.

In retinal separation, the retina detaches from the back of the eyeball.

And MRI is exquisitely sensitive for finding tumors, but it's also very expensive.

So anyway, we found activity in three brain regions.

Here you're going to see the very highest resolution MRI scan done today, reconstructed of Marc Hodosh, the curator of TEDMED.

But sometime ago, through the help of an opthamologist colleague of mine, Carmen Puliafito, who developed a laser scanner of the retina, I found out the the following.

Sophisticated X ray diagnostic techniques such as CT scans make it possible to detect many cancers at a treatable stage.

Magnetic resonance imaging (MRI), nuclear magnetic resonance imaging (NMRI), or magnetic resonance tomography (MRT) is a medical imaging technique used in radiology to investigate the anatomy and physiology of the body in both health and disease.

51 Days 52 Days Developing retina, nose and fingers The fetus' continual movement in the womb is necessary for muscular and skeletal growth.

And finally, we did MRI and MR spectroscopy scans on some of these patients, and the tumor activity is shown in red in this patient, and you can see clearly it s better a year later, along with the PSA going down.

These minor changes in blockages caused a 300 percent improvement in blood flow, and using cardiac positron emission tomography, or PET, scans, blue and black is no blood flow, orange and white is maximal.

And the CAT scan revealed no blood clots in the lung, but it showed bilateral, visible, palpable breast masses, breast tumors, that had metastasized widely all over the body.

and many more worldwide who are blind or are facing blindness due to diseases of the retina, diseases like macular degeneration, and there's little that can be done for them.

And so, in a way, the equations are serving as sort of a codebook. An image comes in, goes through the set of equations, and out comes streams of electrical pulses, just like a normal retina would produce.

So what happens when a person gets a retinal degenerative disease like macular degeneration? What happens is is that, the front end cells die, the photoreceptors die, and over time, all the cells and the circuits that are connected to them, they die too.