Sixteen-slice CT angiography in patients with suspected blunt carotid and vertebral artery injuries.

摘要: Background We sought to determine whether 16-slice multidetector CT angiography (CTA) has sufficient negative predictive value for use as the initial imaging examination patients with suspected blunt carotid and vertebral artery injury (BCVI) estimate positive of different screening criteria in assessing BCVI. Study design conducted a retrospective study who were imaged BCVI at Level I trauma center during 2004. The policy our was evaluate all specific indications CTA, discretion clinical service, four-vessel digital subtraction (DSA) if CTA normal. recorded grade, location, diagnostic certainty from report. primary outcome proportion normal also had DSA. Results Of 372 BCVI, 271 studies. Eighty-two (30%) those further examined DSA, which or equivocal 75 these 82 (CTA value, 92% [95% CI, 83% 97%]). aggregate 19% (95% 14% 23%). Lateral element cervical fractures skull base most criteria. Conclusions Multidetector misses relatively few injuries adequately supplants DSA risk factors Radiologists should maintain high degree suspicion meet Optimal strategies focus on