نتایج جستجو برای: metal artifacts
تعداد نتایج: 228761 فیلتر نتایج به سال:
To extend the application of digital technology to replication artifacts, meticulous details process and diversity three-dimensional (3D) printing output materials need be supplemented. Thus, in this study, a bronze mirror with Hwangbichangcheon inscription was digitalized by 3D scanning, converted into voxel model, virtual conservation treatment performed using haptic device. Furthermore, mold...
Objective. To explore whether the image noises and the metal artifacts could be further managed by the combined use of two technologies, the adaptive statistical iterative reconstruction (ASIR) and the monochromatic imaging generated by gemstone spectral imaging (GSI) dual-energy CT. Materials and Methods. Fifty-one patients with 318 spinal pedicle screws were prospectively scanned with dual en...
introdouction: one of the reasons that cause a pathologist to make an incorrect diagnosis includes artifacts leading to tissue changes and artificial structures in microscopic slides. the aim of this study was to examine the artifacts in histopathological slides in zahedan school of dentistry. materials and methods: in this cross-sectional study, all the available slides in oral and maxillofaci...
BACKGROUND MRI plays a major role in follow-up of patients with malignant bone tumors. However, after limb salvage surgery, orthopaedic tumor endoprostheses might cause significant metal-induced susceptibility artifacts. PURPOSES To evaluate the benefit of view-angle tilting (VAT) and slice-encoding metal artifact correction (SEMAC) for MRI of large-sized orthopaedic tumor endoprostheses in a...
Metallic biomedical implants, such as aneurysm clips, endoprostheses, and internal orthopedic devices give rise to artifacts in the magnetic resonance image (MRI) of patients. Such artifacts impair the information contained in the image in precisely the region of most interest, namely near the metallic device. Ferromagnetic materials are contraindicated because of the hazards associated with th...
CT scan is a very important image modality for examining the patient due to information we receive from it in short time. Receiving high-quality images challenging but evolution of has helped radiology technician lot. In this article, are going focus on metal reduction artifacts. polytrauma hospitals, when orthopedic, neurosurgical, and surgical clinics mostly with patients that have implants t...
Methods and materials All patients underwent a single-injection of FDG, followed first by PET-CT and subsequently by PET-MRI scan. The PET/CT exams were performed using a GE Discovery 690 PET/CT scanner. The PET/MRI images were acquired on a GE Signa PET/MRI scanner. All PET images were reconstructed with and without the TOF data. Visual analysis of these series was performed for dental metal /...
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