title: A tissue stabilization device for MRI-guided breast biopsy.
abstract: We present a breast tissue stabilization device that can be used in magnetic resonance imaging-guided biopsy. The device employs adjustable support plates with an optimized geometry to minimize the biopsy target displacement using smaller compression than the conventional parallel plates approach. It is expected that the reduced compression will cause less patient discomfort and improve image quality by enhancing the contrast intake. Precomputed optimal positions of the stabilization plates for a given biopsy target location are provided in a look-up table. The results of several experiments with a prototype of the device carried out on chicken breast tissue demonstrate the effectiveness of the new design when compared with conventional stabilization methods. The proposed stabilization mechanism provides excellent flexibility in selecting the needle insertion point and can be used in manual as well as robot-assisted biopsy procedures.
authors.affiliation: Electrical and Computer Engineering Department, McMaster University, 1280 Main St. West, Hamilton, ON, Canada. Electronic address: patriciu@mail.ece.mcmaster.ca.
authors.forename: Alexandru
authors.initials: A
authors.lastname: Patriciu
authors.affiliation: Electrical and Computer Engineering Department, McMaster University, 1280 Main St. West, Hamilton, ON, Canada.
authors.forename: Maggie
authors.initials: M
authors.lastname: Chen
authors.affiliation: Electrical and Computer Engineering Department, McMaster University, 1280 Main St. West, Hamilton, ON, Canada.
authors.forename: Behzad
authors.initials: B
authors.lastname: Iranpanah
authors.affiliation: Electrical and Computer Engineering Department, McMaster University, 1280 Main St. West, Hamilton, ON, Canada.
authors.forename: Shahin
authors.initials: S
authors.lastname: Sirouspour
mesh_terms: D000465:Algorithms; D001707:Biopsy, Needle / Q000295:instrumentation* / Q000379:methods*; D001940:Breast / Q000473:pathology*; D003198:Computer Simulation; D004548:Elasticity; D004867:Equipment Design; D005260:Female; D006801:Humans; D061705:Image-Guided Biopsy; D016014:Linear Models; D053783:Magnetic Resonance Imaging, Interventional / Q000295:instrumentation / Q000379:methods; D008954:Models, Biological
keywords: Breast biopsy; Magnetic resonance imaging; Needle insertion; Soft-tissue deformation; Tissue stabilization