Toshiba introduces contrast-free imaging technique
Toshiba America Medical Systems has introduced Time and Space Angiography (TSA), a fourth generation contrast-free imaging technique.

Adding to its offering of contrast-free techniques, Toshiba said its TSA creates images that show blood flow in motion without using contrast agents.  TSA uses a time-spatial labeling inversion pulse technique and features high temporal resolution and a continually changing inversion pulse time.