Positron Emission Mammography Image Interpretation for Reduced Image Count Levels

Characteristics of Smoothing Filters to Achieve the Guideline Recommended Positron Emission Tomography Image without Harmonization

Objective(s): The aim of this study is to examine the effect of different smoothing filters on the image quality and SUVmax to achieve the guideline recommended positron emission tomography (PET) image without harmonization. Methods: We used a Biograph mCT PET scanner. A National Electrical Manufacturers Association (NEMA) the International Electrotechnical Commission (IEC) body phantom was fil...

Decision Support for Image Interpretation: A Mammography Workstation

This paper presents an approach to the design of decision aids for medical image interpretation. The approach is based on a model of the decision making process in which decision making is viewed as comprising activities of proposing candidate solutions, developing arguments for and against those solutions and evaluating the arguments. The model is applied to various decision making tasks in im...

Scatter correction for positron emission mammography.

In this paper we present a scatter correction method for a regularized list mode maximum likelihood reconstruction algorithm for the positron emission mammograph (PEM) that is being developed at our laboratory. The scatter events inside the object are modelled as additive Poisson random variables in the forward model of the reconstruction algorithm. The mean scatter sinogram is estimated using ...

A New Algorithm for Image Reconstruction for Positron Emission Tomography

In Positron Emission Tomography, penalized iterative algorithms like MAP often results in over smooth reconstructions due to over penalizing nature of the assumed interacting potential. These algorithms fail to determine the density class of the estimate and hence penalize the pixels irrespective of the density class. In this work, a fuzzy logic based approach is proposed to model the prior whi...

Maximum Likelihood Algorithms for Image Reconstruction in Positron Emission Tomography