Title :
Doppler ultrasound imaging of magnetically vibrated brachytherapy seeds
Author :
McAleavey, Stephen A. ; Rubens, Deborah J. ; Parker, Kevin J.
Abstract :
Vibration induced by an alternating magnetic field is proposed as a method for the identification of modified brachytherapy seeds with Doppler ultrasound. In vitro experiments with agar and liver-tissue phantoms using a clinical scanner and simple apparatus demonstrate that the technique is feasible.
Keywords :
Doppler measurement; biomedical ultrasonics; brachytherapy; liver; vibrations; Doppler ultrasound imaging; agar phantom; alternating magnetic field; clinical scanner; in vitro experiments; liver-tissue phantoms; magnetically vibrated brachytherapy seeds; modified brachytherapy seeds identification; therapeutic nuclear medicine; Brachytherapy; Computed tomography; Magnetic anisotropy; Magnetic fields; Magnetoelasticity; Needles; Particle scattering; Perpendicular magnetic anisotropy; Ultrasonic imaging; X-ray imaging; Animals; Brachytherapy; Cattle; Feasibility Studies; Foreign Bodies; Image Enhancement; Liver; Magnetics; Motion; Phantoms, Imaging; Radiotherapy Planning, Computer-Assisted; Ultrasonography; Vibration;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2002.807644
