The radiation therapy planning problem.- Mathematical models for medical imaging.- Articles by Workshop Speakers.- Tomography through the transport equation.- A general framework for iterative reconstruction algorithms in optical tomography, using a finite element method.- Scattered radiation in nuclear medicine: A case study on the Boltzmann transport equation.- Mathematical aspects of radiation therapy treatment planning: Continuous inversion versus full discretization and optimization versus feasibility.- Early results on general vertex sets and truncated projections in cone-beam tomography.- Mathematical problems in microwave medical imaging.- Image reconstruction from experimental data in diffusion tomography.- The Application of the x-ray transform to 3D conformal radiotherapy.- Optimization methods for radiation therapy plans.- Fully three-dimensional reconstruction in electron microscopy.