title: Imaging near metal with a MAVRIC-SEMAC hybrid.
abstract: The recently developed multi-acquisition with variable resonance image combination (MAVRIC) and slice-encoding metal artifact correction (SEMAC) techniques can significantly reduce image artifacts commonly encountered near embedded metal hardware. These artifact reductions are enabled by applying alternative spectral and spatial-encoding schemes to conventional spin-echo imaging techniques. Here, the MAVRIC and SEMAC concepts are connected and discussed. The development of a hybrid technique that utilizes strengths of both methods is then introduced. The presented technique is shown capable of producing minimal artifact, high-resolution images near total joint replacements in a clinical setting.
authors.affiliation: Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin 53188, USA. kevin.koch@ge.com
authors.forename: K M
authors.initials: KM
authors.lastname: Koch
authors.forename: A C
authors.initials: AC
authors.lastname: Brau
authors.forename: W
authors.initials: W
authors.lastname: Chen
authors.forename: G E
authors.initials: GE
authors.lastname: Gold
authors.forename: B A
authors.initials: BA
authors.lastname: Hargreaves
authors.forename: M
authors.initials: M
authors.lastname: Koff
authors.forename: G C
authors.initials: GC
authors.lastname: McKinnon
authors.forename: H G
authors.initials: HG
authors.lastname: Potter
authors.forename: K F
authors.initials: KF
authors.lastname: King
mesh_terms: D000465:Algorithms; D016477:Artifacts; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008670:Metals; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted
chemical_list: D008670:Metals