WebNov 15, 2011 · Gated 4D PET can reduce motion artifacts, though residual artifacts may persist depending on the CT dataset used for attenuation correction. We performed phantom studies to evaluate 4D PET images of targets near a density interface using three different methods for attenuation correction: a single 3D CT (3D CTAC), an averaged … WebJan 13, 2024 · On completion, the image should be evaluated visually to assess the straightness of the lines produced by the bar phantom and …
Investigation of the halo-artifact in 68Ga-PSMA-11-PET/MRI
Webartifact [ahr´tĭ-fakt] 1. any artificial product; a structure or appearance that is not natural, but is due to manipulation. 2. distortion or fuzziness of an image caused by manipulation, … WebOct 29, 2011 · Positron Emission Tomography (PET) is an imaging method affected by motion artifacts. PET-MR simultaneous acquisition may provide a means to correct for the effects of motion. Evaluation and development of motion correction techniques requires the development of phantoms capable for continuous and realistic motion. For this study, … chrome pc antigo
Multimodal phantoms for clinical PET/MRI - EJNMMI Physics
WebNine 18 F-FDG PET/CT acquisitions of the phantom have been performed including 38 lesions of different shape, size, radiotracer distribution, and L/B ratio in different … WebSep 1, 2005 · The purpose of this paper is to introduce the principles of PET/CT imaging and describe the artifacts associated with it. PET/CT is a new imaging modality that integrates functional (PET) and structural (CT) … WebPET/CT Attenuation and its Artifact. Today we are going to evaluate how PET images are corrected with CT attenuation. However, a problem sometimes occurs when applying attenuation correction (from CT) because artifacts are generated in the corrected PET image. ... Once the different tissue types are identified Scaling and Segmentation can be ... chrome pdf 转 图片