Perspective Therapeutics Inc (CATX)

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Brachytherapy For Head And Neck Cancer
Brachytherapy treatments can be effective for various head and neck cancers. One type of brachytherapy called low-dose-rate (LDR) brachytherapy is performed by permanently or temporarily implanting radioactive seeds in the cancerous tissue so they can give off their radiation dose for days or months. Another type, called high dose rate (HDR) brachytherapy, uses a highly radioactive source that is temporarily placed near the target area to quickly give a high dose and then removed.

Low-Dose-Rate (LDR) Brachytherapy: We continue to offer LDR permanent seed implants using the isotope Iodine-125 (I-125) to deliver the therapeutic radiation dose. However, recently NewYork-Presbyterian Radiation Oncology became the first in the nation to use a new isotope called Cesium-131 (Cs-131) for one type of head and neck cancer. Cs-131 delivers the therapeutic dose much more quickly then I-125 — weeks instead of months — and has other characteristics that may give superior outcomes depending on the needs of the patient.

More commonly, temporary implants using LDR Iridium-192 (Ir-192) are used as appropriate.

High-Dose-Rate (HDR) Brachytherapy: We also offer highly specialized HDR treatments for certain head and neck cancers including cancers of the tongue. Because of the specialized nature of these treatments, they are only available at a few other centers in the nation.

http://www.nyp.org/radonc/head-neck.html