Wireless Tumor Tracker: An Implantable Dosimeter

Researchers at Purdue University are in the process of developing a "dime-sized" device which will measure the amount of radiation receieved by the tissues within the body after radiation therapy as well as track . Locating tumors can can be difficult with the shifting of organs during body movement. The goal of this device is to monitor the movement of tumors and measure radiation levels.

The procedure will involve placing the tracker in the tumor or the surrounding tissue to track the movement of the tumor or to assess the damage. The small dosimeter will "wirelessly" transmit information regarding radiation exposure and tumor location.
Electrical coils are used to activate the device externally. They are also used to detect the device and locate the tumor. It operates in the same way as electrical microphones. The microphone vibrations change the amount of electricity that can be stored in the device; these changes in electric flow creates a signal which relates information from the dosimeter to the external receiver wirelessly.

After hearing about the advances in the tracking studies and the possibility of cheaper more effective treatment, patients are eager to try something new.

URL:
http://www.sciencedaily.com/videos/2006/0905-wireless_tumor_tracker.htm

Acacia Ho

(VTPP 434-501)