O'Reilly logo

Image Reconstruction by Gengsheng Lawrence Zeng

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

7MRI reconstruction

The magnetic resonance imaging (MRI) physics is quite different from that of transmission or emission imaging as we discussed in the previous chapters. This chapter first introduces the imaging physics of MRI, showing how the MRI signals are formed. We will see that the MRI signals are in the Fourier domain and the image reconstruction is achieved via the inverse Fourier transform.

7.1The “M”

The MRI working principle is quite different from that of emission and transmission tomography. MRI is an image of “proton density” in a cross section of the patient. The data in MRI can be simplified as weighted plane integrals of the proton density function in that plane with “frequency”-dependent weighting functions.

In this chapter, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required