Motion effects on the measurement of stiffness on ultrasound shear wave elastography: a moving liver fibrosis phantom study

• DOI: 10.11152/mu-1138
• Publication Date: 2017-11-03T09:00:27Z
• Authors: Hyun Joo Shin; Myung-Joon Kim; Choon-Sik Yoon; Kwanseop Lee; Kwan Sik Lee; Jong-Chul Park; Mi-Jung Lee; Haesung Yoon
• Keywords: Ultrasound Elastography; Transient elastography

To evaluate the differences between shear wave velocities (SWVs) measured with ultrasound elastography during continuous motion using liver fibrosis phantoms.Elasticities were convex and linear transducers of supersonic imaging (SSI) acoustic radiation force impulse (ARFI) elasticity phantoms (3.0 16.9 kPa) at depths 2, 3, 4, 5 cm. Motion 30 60 rpm in an upright position on Orbital shaker. simulate different directional motion, laid their side The values moving static status compared, number measurement failure was counted. Results: In SSI, transducer less affected by 3 kPa phantom. higher velocity stiffness phantom, most from SSI comparing status, there a tendency for to increase movement. ARFI, frequent failures without stable results motion.Motion differently according velocity, direction phantom stiffness. lower when normal