
Proceedings Paper
Impedance-controlled ultrasound probeFormat | Member Price | Non-Member Price |
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Paper Abstract
An actuated hand-held impedance-controlled ultrasound probe has been developed. The controller maintains a
prescribed contact state (force and velocity) between the probe and a patient's body. The device will enhance the
diagnostic capability of free-hand elastography and swept-force compound imaging, and also make it easier for a
technician to acquire repeatable (i.e. directly comparable) images over time. The mechanical system consists of an
ultrasound probe, ball-screw-driven linear actuator, and a force/torque sensor. The feedback controller commands the
motor to rotate the ball-screw to translate the ultrasound probe in order to maintain a desired contact force. It was found
that users of the device, with the control system engaged, maintain a constant contact force with 15 times less variation
than without the controller engaged. The system was used to determine the elastic properties of soft tissue.
Paper Details
Date Published: 25 March 2011
PDF: 12 pages
Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 796816 (25 March 2011); doi: 10.1117/12.882169
Published in SPIE Proceedings Vol. 7968:
Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy
Jan D'hooge; Marvin M. Doyley, Editor(s)
PDF: 12 pages
Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 796816 (25 March 2011); doi: 10.1117/12.882169
Show Author Affiliations
Matthew W. Gilbertson, Massachusetts Institute of Technology (United States)
Brian W. Anthony, Massachusetts Institute of Technology (United States)
Published in SPIE Proceedings Vol. 7968:
Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy
Jan D'hooge; Marvin M. Doyley, Editor(s)
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