In patients with oral head and neck cancer, the presence of metallic dental implants
produces streak artifacts in the CT images. These artifacts negate the utility of CT for the …

Objective The objective of this study was to investigate the effects of computed tomography
(CT) artifacts caused by dental metal prostheses on positron emission tomography (PET) …

PET/CT imaging is particularly promising for head/neck malignancies, but dental implants
lead to biased CT attenuation and PET activity values following CT-based attenuation …

Germanium-68 based attenuation correction (PET Ge68) is performed in positron emission
tomography (PET) imaging for quantitative measurements. With the recent introduction of …

Our objective was to study the effect of metal-induced artifacts on the accuracy of the CT-
based anatomic map as a prerequisite for attenuation correction of the positron emission …

The purpose of this study was to investigate the clinical usefulness of PET/CT or CT-
attenuated PET in the evaluation of patients with oral cavity cancer (OCC) in whom dental …

Objective Attenuation correction of PET data requires accurate determination of the
attenuation map (μmap), which represents the spatial distribution of linear attenuation …

Recent studies have shown increased artifacts in CT attenuation-corrected (CTAC) PET
images acquired with oral contrast agents because of misclassification of contrast as bone …

Objective: The purpose of this study was to evaluate the influence of 68Ge-based and CT-
based attenuation correction as well as two standard image reconstruction algorithms on the …

In recent years, different metal artifact reduction methods have been developed for CT.
These methods have only recently been introduced for PET/CT even though they could be …