Needle-size device created to track tumors, radiation dose
April 8, 2008 | Source: KurzweilAI
Purdue University engineers are creating a wireless needle-sized device designed to be injected into tumors to tell doctors the precise dose of radiation received and locate the exact position of tumors during treatment.
Conventional imaging systems can provide a 3D fix on a tumor’s shifting position during therapy, but they are difficult to use during radiation therapy, costly, and sometimes require X-rays, which can damage tissue when used repeatedly.
The new “wireless implantable passive micro-dosimeter” uses radio frequency identification, has no batteries, and is activated with electrical coils placed next to the patient.
