Abstract: A design, quality assurance, and clinical use procedures are provided for real-time tracking of a custom MRI/CT-compatible brachytherapy applicators. A real-time tracking system is used for applicator implantation, repositioning and tracking during treatment delivery.

Abstract: A substantially metallic magnetic resonance Imaging (MRI)-tracked injection needle device is disclosed. The magnetic resonance Imaging (MRI)-tracked injection needle device includes a luer syringe; an electrical connector that is at least partially housed in an interior space of a distal end of the luer syringe; an electrical adaptor coupled to the electrical connector; and an injection needle comprising a shaft having a needle distal end and a needle proximal end, the shaft comprising concentric metal tubes comprising an inner metal tube and an outer metal tube, the needle proximal end coupled to the electrical adaptor and the needle distal end comprising one or more tracking coils arranged between the inner metal tube and the outer metal tube.

Abstract: A shield assembly for an intensity modulated brachytherapy (IMBT) system, has: a tubular applicator engageable to a rotating mechanism of the IMBT system, the tubular applicator having a peripheral wall enclosing an internal cavity extending longitudinally along a central axis; a radiation shield extending axially along the central axis and received within the internal cavity, the radiation shield made of an MRI-compatible and radiation attenuating material; and a radionuclide-receiving passage within the internal cavity of the tubular applicator, the radionuclide-receiving passage extending axially and being radially offset from the central axis.