Conservation of heritage artifacts is a very sensitive task as conservators usually have very little information about the artifacts. Moreover, due to the uniqueness and the historic value of these artifacts, invasive analysis are not always possible. Therefore, without sampling options, conservators are required to use non-invasive diagnostic methods in order to identify the metal characterist...

Introduction: The MAVRIC and SEMAC techniques enable low susceptibility-artifact imaging near metal implants using conventional spin-echo techniques [1,2]. Previous demonstrations of these techniques have been performed at 1.5T. Extending the techniques to 3T is easily feasible from a susceptibility artifact mitigation standpoint. This is due to the fact that both techniques restrict off-resona...

Artifacts are commonly encountered in clinical computed tomography (CT), and may obscure or simulate pathology. There are many different types of CT artifacts, including noise, beam hardening, scatter, pseudoenhancement, motion, cone beam, helical, ring, and metal artifacts. We review the cause and appearance of each type of artifact, correct some popular misconceptions, and describe modern tec...

Purpose Metal artifacts can drastically reduce the diagnostic value of computed tomography (CT) images. Even state-of-the-art algorithms cannot remove them completely. Photon-counting CT inherently provides spectral information, similar to dual-energy CT. Many applications, such as material decomposition, are not possible when metal present. Our aim is develop a prior-based artifact reduction s...