Advances in diagnostic imaging technology have meant that more trauma patients are being diagnosed with blunt cerebrovascular injuries, and as a result, stroke and related death rates in these patients have declined significantly over the past 30 years. These changes are due to the evolution of imaging technology, namely CT-scanning, and its wide availability in hospitals large and small, according to a new study from the University of Tennessee Health Science Center , Memphis, published online in the Journal of the American College of Surgeons in advance of print publication later this year.