APPARATUS AND TECHNIQUE FOR DETECTION OF BRACHYTHERAPY SEEDS AND SEED FOR USE WITH THE TECHNIQUE

摘要

A brachytherapy seed (100) includes a magnetized or magnetizable material (106). To locate seeds (100) which have been implanted into an organ, the organ is exposed to an oscillating magnetic field, which causes them to vibrate. Doppler ultrasound is used to detect the vibrating seeds (100).