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Conference Paper: Detection and correction of MR EPI data corrupted by spike noise

TitleDetection and correction of MR EPI data corrupted by spike noise
Authors
Pan, ZYAn, HLee, EYPGuo, H
Issue Date2019
PublisherInternational Society for Magnetic Resonance in Medicine.
Citation
The 27th Annual Meeting & Exhibition of International Society for Magnetic Resonance in Medicine (ISMRM), Montreal, Canada, 11-16 May 2019  How to Cite?
AbstractEPI-based MR images are prone to the spike artifact, which is usually caused by small electrical discharges i.e. sparks that emit radio frequency power within the bandwidth of the scanner receiving system 1 during the MR acquisition. Spike noise causes ripples or stripes covered on the object and can hamper the qualitative or quantitative analysis of the MR images. In this work, we developed a reliable technique that combines Robust Principal Component Analysis 2 (RCPA) with median filtering to robustly detect and correct spike-affected images in human pelvic diffusion weighted imaging (DWI). The overall image quality and the lesion conspicuity were improved after spike removal.
DescriptionDigital Poster Session: Acquisition, Reconstruction & Analysis: Artifacts, Implants & Corrections - no. Abstract #4614
Persistent Identifierhttp://hdl.handle.net/10722/285460

 

DC FieldValueLanguage
dc.contributor.authorPan, ZY-
dc.contributor.authorAn, H-
dc.contributor.authorLee, EYP-
dc.contributor.authorGuo, H-
dc.date.accessioned2020-08-18T03:53:37Z-
dc.date.available2020-08-18T03:53:37Z-
dc.date.issued2019-
dc.identifier.citationThe 27th Annual Meeting & Exhibition of International Society for Magnetic Resonance in Medicine (ISMRM), Montreal, Canada, 11-16 May 2019 -
dc.identifier.urihttp://hdl.handle.net/10722/285460-
dc.descriptionDigital Poster Session: Acquisition, Reconstruction & Analysis: Artifacts, Implants & Corrections - no. Abstract #4614-
dc.description.abstractEPI-based MR images are prone to the spike artifact, which is usually caused by small electrical discharges i.e. sparks that emit radio frequency power within the bandwidth of the scanner receiving system 1 during the MR acquisition. Spike noise causes ripples or stripes covered on the object and can hamper the qualitative or quantitative analysis of the MR images. In this work, we developed a reliable technique that combines Robust Principal Component Analysis 2 (RCPA) with median filtering to robustly detect and correct spike-affected images in human pelvic diffusion weighted imaging (DWI). The overall image quality and the lesion conspicuity were improved after spike removal.-
dc.languageeng-
dc.publisherInternational Society for Magnetic Resonance in Medicine. -
dc.relation.ispartof27th Annual Meeting & Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM)-
dc.titleDetection and correction of MR EPI data corrupted by spike noise-
dc.typeConference_Paper-
dc.identifier.emailLee, EYP: eyplee77@hku.hk-
dc.identifier.authorityLee, EYP=rp01456-
dc.identifier.hkuros312797-
dc.publisher.placeUnited States-

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