نتایج جستجو برای: metal artifacts

تعداد نتایج: 228761  

Journal: :Bojon-gwahakoeji 2021

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...

2015
Fengdan Wang Yan Zhang Zhengyu Jin Richard Zwar

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...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
shirin saravani oral and dental disease research center, department of oral and maxillofacial pathology, school of dentistry, zahedan university of medical sciences, zahedan, iran. hamideh kadeh oral and dental disease research center, department of oral and maxillofacial pathology, school of dentistry, zahedan university of medical sciences, zahedan, iran. maryam shahsavari department of oral and maxillofacial pathology, school of dentistry, zahedan university of medical sciences, zahedan, iran. mahnaz shahrakipour oral and dental disease research center, department of biostatistics and epidemiology, school of public health, zahedan university of medical sciences; zahedan, iran. bahare mosafer student research committee, school of dentistry, zahedan university of medical sciences, zahedan, iran

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...

2015
Pia M. Jungmann Carl Ganter Christoph J. Schaeffeler Jan S. Bauer Thomas Baum Reinhard Meier Mathias Nittka Florian Pohlig Hans Rechl Ruediger von Eisenhart-Rothe Ernst J. Rummeny Klaus Woertler

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...

2008
L. H. Bennett P. S. Wang M. J. Donahue

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...

Journal: :Medicus 2022

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...

2015
Andrei Iagaru Ryogo Minamimoto Craig Levin Amid Barkhodari Mehran Jamali Dawn Holley Zaharchuk Greg

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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