title: Localization grid for MR-guided biopsy.
abstract: A localization grid for use with magnetic resonance (MR)-guided biopsies was designed and evaluated. First, the signal intensities of various concentrations of Gd-DTPA in polyethylene tubes of different sizes and at various pulse sequences were evaluated. The optimal signal intensity on all pulse sequences was obtained with a concentration of 500 microM. A grid was then made with 5-mm-diameter polyethylene tubes filled with 500-microM Gd-DTPA. The grid has provided excellent localization for MR-guided biopsy and fluid aspiration.
mesh_terms: D001706:Biopsy; D005682:Gadolinium; D019786:Gadolinium DTPA; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009942:Organometallic Compounds; D004369:Pentetic Acid
chemical_list: D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA