title: [A positioning method of ultrasound probe in MR system].
abstract: This paper provides a method of positioning the ultrasound probe in MR system. Machining 6 slots or cylinder perpendicular to the ultrasound probe surface on the edge of ultrasound probe as markers, 12 central cylinder ends are chosen as positioning points. By calculating these positioning points' coordinates in MR's coordinate system, the coordinate transformation between the ultrasound and MR coordinate system can be computed. Furthermore, by taking advantage of redundant information, calculating errors can be reduced and the precision can be improved.
authors.affiliation: Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030.
authors.forename: Bo
authors.initials: B
authors.lastname: Wei
authors.forename: Guofeng
authors.initials: G
authors.lastname: Shen
authors.forename: Sheng
authors.initials: S
authors.lastname: Chen
authors.forename: Mengyuan
authors.initials: M
authors.lastname: Zhu
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Su
authors.forename: Yazhu
authors.initials: Y
authors.lastname: Chen
mesh_terms: D008279:Magnetic Resonance Imaging; D014464:Ultrasonic Therapy / Q000379:methods*