An experimental rice-sized implant monitors how drugs affect tumors

Researchers at Brigham and Women’s Hospital in Boston have developed an implant, notably as small as a grain of rice, that can test the effects of drugs on a patient’s brain tumor in real-time during surgery. Currently, monitoring the effects of drugs on a brain cancer patient during surgery is limited to intraoperative brain imaging and tissue sampling after a drug has been administered. The technique known as microdialysis currently stands as one of the more minimally invasive sampling options for testing the impact of drugs on brain tumors, but even that requires an entire catheter to be inserted into the patient’s skull cavity.