Web1 Nov 2000 · In the clinical study, the streak artifact was reduced, especially outside the body, although only a ramp filter was used. Conclusion: The IPC process succeeded in … Web9 Apr 2024 · Imaging approaches, such as metal artifact reduction (MAR) methods, have been used to reduce CT imaging artifacts; other approaches have been applied to optimize treatment planning procedures, as, for example, when the required avoidance margin is determined in order to assure that the implant does not affect the dose distribution. 6, 21 …
Utilization of tin filters for streak artifact reduction in cone-beam ...
Web14 Feb 2024 · Streak artifact can be reduced with a 0.4 mm tin filter and HQH protocol in CBCT with imaging dose reduction. This study aims streak artifacts reduction in cone … Web11 Feb 2024 · Recently, a new metal artifact reduction algorithm called SMAR , based on sinogram surgery , was proposed to reduce metal artifacts by calibrating the sinogram to … helado churchill
Segmentation-aided adaptive filtering for metal artifact reduction …
WebBackground: Myocardial computed tomography perfusion (CTP) using conventional single energy (SE) imaging is influenced by the presence of beam hardening artifacts (BHA), occasionally resembling perfusion defects and commonly observed at the left ventricular posterobasal wall (PB). We therefore sought to explore the ability of dual energy (DE) CTP … WebBackground: Streak artifacts are a common problem in radial magnetic resonance imaging (MRI). We therefore developed a method for automatically excluding receiver coil … Web1 Jun 2024 · Recently, CBCT devices with metal artifact reduction (MAR) applications have been developed 6 – 8. The MAR algorithm is applied in the process of image reconstruction and reduces image distortion such as darkened areas caused by losses of gray values and bright streak artifacts 5, 9. The amount of artifact varies depending on the type, shape ... helad samsung 330 lts no frost bl rt32w