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Metal Artifact Reduction Algorithm Ct Flatpanel Detector

Evaluation of C-arm CT metal artifact reduction algorithm ...

Prell et al. developed a first of a kind metal artifact reduction MAR algorithm for flat panel detector C-arm CT imaging and also demonstrated the added value of metal artifact corrected images in a clinical setting . This algorithm involves replacement of under-exposed pixels and interpolation of surrogate attenuation values for the ...

Evaluation of a metal artifacts reduction algorithm applied ...

Metal artifacts reduction is an effective method to improve flat panel detector CT images degraded by metal artifacts. Metal artifacts are significantly decreased by the metal artifacts reduction algorithm and there was a trend toward increased vessel-segment visualization.

Metal artifact reduction for flat panel detector intravenous ...

Metal artifact reduction for flat panel detector intravenous CT angiography in patients with intracranial metallic implants after endovascular and surgical treatment. Pjontek R 1 Önenköprülü B 1 Scholz B 2 Kyriakou Y 2 Schubert GA 3 Nikoubashman O 4 Othman A 1 Wiesmann M 1 Brockmann MA 1 .

Reduction of coil mass artifacts in high-resolution flat ...

We report on the use of a metal artifact reduction algorithm for high-resolution contrast-enhanced conebeam CT for follow-up imaging of stent-assisted coil embolization. Materials and methods: Contrast-enhanced conebeam CT data were acquired in 25 patients who underwent stent-assisted coiling.

Artifact Reduction of Different Metallic Implants in Flat ...

MATERIALS AND METHODS: We retrospectively reprocessed the flat detector CT data of 28 patients 15 men 13 women; mean age 55.6 years after they underwent endovascular treatment 20 coiling ± stent placement 6 liquid embolizers or shunt drainage n = 2 between January 2009 and November 2011 by using a metal artifact reduction correction algorithm.

Metal artifact reduction for flat panel detector intravenous ...

Background Flat panel detector CT angiography with intravenous contrast agent injection IV CTA allows high-resolution imaging of cerebrovascular structures. Artifacts caused by metallic implants like platinum coils or clips lead to degradation of image quality and are a significant problem. Objective To evaluate the influence of a prototype metal artifact reduction MAR algorithm on image ...

Evaluation of a Metal Artifacts Reduction Algorithm Applied ...

RESULTS: The metal artifacts reduction algorithm was applied to the 59 flat panel detector CT datasets without compli ions. The metal artifacts in the reduction-corrected flat panel detector CT images were significantly reduced in the area immediately adjacent to the implanted metal object P = .05 and in the area 3 cm away from the metal object P = .03 .

Original research: Metal artifact reduction for flat panel ...

Metal artifact reduction for flat panel detector intravenous CT angiography in patients with intracranial metallic implants after endovascular and surgical treatment Rastislav Pjontek 1 Belgin Önenköprülü 1 Bernhard Scholz 2 Yiannis Kyriakou 2 Gerrit A Schubert 3 Omid Nikoubashman 1 4 Ahmed Othman 1 Martin Wiesmann 1 and ...

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