Artefacts are common in today's cone beam CT (CBCT). They are induced by discrepancies
between the mathematical modelling and the actual physical imaging process. Since …

Methods to overcome metal artifacts in computed tomography (CT) images have been
researched and developed for nearly 40 years. When X-rays pass through a metal object …

The use of cardiac PET, and in particular of quantitative myocardial perfusion PET, has been
growing during the last years, because scanners are becoming widely available and …

This paper describes a statistical image reconstruction method for X-ray computed
tomography (CT) that is based on a physical model that accounts for the polyenergetic X-ray …

Purpose To compare image quality and lesion conspicuity on abdominal computed
tomographic (CT) images acquired with different x-ray tube current–time products (50–200 …

Objectives: To briefly review the mathematical background of beam‐hardening artifacts in
cone‐beam computed tomography (CBCT)‐reconstruction and to investigate geometrical …

Purpose To compare lesion detection and image quality of chest computed tomographic
(CT) images acquired at various tube current–time products (40–150 mAs) and …

A new iterative maximum-likelihood reconstruction algorithm for X-ray computed
tomography is presented. The algorithm prevents beam hardening artifacts by incorporating …

Purpose To evaluate two methods for reducing metal artifacts in computed tomography (CT)—
the metal deletion technique (MDT) and the selective algebraic reconstruction technique …

It is known that metal artifacts can be reduced by modifying standard acquisition and
reconstruction, by modifying projection data and/or image data and by using virtual …