title: An Artifact in Supersonic Shear Wave Elastography.
abstract: Supersonic shear wave elastography is a novel ultrasound technology that allows objective evaluation of soft tissue stiffness. The purpose of this study is to report an artifact in supersonic shear wave elastography that may strongly affect the accuracy and quality of the measurement of soft tissue stiffness, and to step-by-step describe how the artifact was found and how it was verified by a series of experiments under different conditions. There were a total of three longitudinal band-like artifacts, 1.3 cm apart from each other on the entire image along the length of the SuperLinear SL15-4 transducer surface, with the middle one at the center of the image. When using supersonic shear wave elastography, users should be keenly aware of the possible occurrence of the artifact and avoid it by choosing the quantification measurement regions of interest (ROIs) away from the artifact regions.
authors: Department of Orthopaedic Surgery, School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
authors: Che-Yu
authors: CY
authors: Lin
authors: Department of Orthopaedic Surgery, School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan.
authors: Pei-Yu
authors: PY
authors: Chen
authors: Institute of Applied Mechanics, College of Engineering, National Taiwan University, Taipei, Taiwan; Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan.
authors: Yio-Wha
authors: YW
authors: Shau
authors: Department of Orthopaedic Surgery, School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan. Electronic address: chungli@ntu.edu.tw.
authors: Chung-Li
authors: CL
authors: Wang
mesh_terms: D000328:Adult; D016477:Artifacts; D054459:Elasticity Imaging Techniques / Q000379:methods*; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000033:anatomy & histology* / Q000502:physiology*; D019047:Phantoms, Imaging; D012016:Reference Values
keywords: Artifact; Stiffness; Supersonic shear wave elastography; Ultrasound