Dual energy CT is an effective way to evaluate emergency department patients with possible anterior cruciate ligament (ACL) tears, a new study shows. ACL tears are one of the most frequent ligamentous injuries of the knee; they are not commonly diagnosed in the emergency department because they are not seen on plain x-rays.
Researchers at Mayo Clinic in Rochester, MN, imaged the knees of 27 patients using dual energy CT -- 16 of the patients had confirmed ACL tears, while 11 had no history of trauma, said Dr. Katrina Glazebook, a lead author of the study.