A View Of Reconstruction Tomography: XCT, ECT, NMRCT

I survey the present status of three subfields of reconstruction tomography, X-ray CT, emission CT, and magnetic resonance CT, and mention some new results and insights, as well as open problems. This is for my Frontier in Imaging Science lecture at the IEEE Nuclear Science International Workshop on Physics and Engineering of Computerized Multidimensional Imaging and Processing, April 2-4, 1986, Irvine, CA.