Sound waves could reveal brain tumor secrets without surgery

This study tests a new technique called sonobiopsy that uses focused ultrasound to release DNA from brain tumors into the bloodstream, making it easier to detect and analyze the tumor's genetic makeup through a simple blood test. The goal is to improve diagnosis and treatment planning for people with suspected glioblastoma, a fast-growing brain cancer. About 40 newly diagnosed adults with large, accessible brain tumors will participate.