title: Biopsy needle as MRE driver for tumor detection.
abstract: Magnetic Resonance Elastography (MRE) is a phase contrast imaging technique to quantitatively measure the elasticity of tissues. Typically, an oscillating driver is placed on the surface to generate the shear waves. The depth penetration of the wave is limited by attenuation and the biopsy procedure has to be done separately. In this study, we use a biopsy needle as the driver to detect the 15% porcine gel inclusion in a 10% porcine gel phantom which simulates a tumor in tissues. We also perform the experiment with the biopsy needle for in-vivo tumor detection in rabbits. It is shown that the biopsy needle driver can accurately measure the stiffness and location of the tumor.
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong.
authors.forename: X G
authors.initials: XG
authors.lastname: Zhao
authors.forename: Y
authors.initials: Y
authors.lastname: Zheng
authors.forename: Q C C
authors.initials: QC
authors.lastname: Chan
authors.forename: X F
authors.initials: XF
authors.lastname: Yang
authors.forename: G
authors.initials: G
authors.lastname: Li
authors.forename: E S
authors.initials: ES
authors.lastname: Yang
mesh_terms: D000818:Animals; D001706:Biopsy; D001707:Biopsy, Needle; D004548:Elasticity; D004867:Equipment Design; D005121:Extremities; D005260:Female; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D015233:Models, Statistical; D009369:Neoplasms / Q000175:diagnosis* / Q000473:pathology*; D019047:Phantoms, Imaging; D011817:Rabbits; D013314:Stress, Mechanical; D013552:Swine