11 April 2002 Doppler technique for the detection and localization of modified brachytherapy seeds
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Abstract
A technique to improve detection of brachytherapy seeds in ultrasound images is presented. Seeds modified to include a small ferrous or magnetic component are vibrated with an amplitude of a few microns within the tissue by an external magnetic field. The vibration is detected by standard Power Doppler or Pulse Wave Doppler systems, which pinpoint the source of vibration and thus the seed within the image. The results of in vitro experiments on agar and liver-tissue phantoms are presented to demonstrate the feasibility of the method. MRI compatibility issues are addressed.
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Stephen A. McAleavey, Stephen A. McAleavey, } "Doppler technique for the detection and localization of modified brachytherapy seeds", Proc. SPIE 4687, Medical Imaging 2002: Ultrasonic Imaging and Signal Processing, (11 April 2002); doi: 10.1117/12.462154; https://doi.org/10.1117/12.462154
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