Coronary CT Angiography Using 320-Row Volume CT in Patients With Atrial Fibrillation

Inclusion Criteria: * Suspected coronary artery disease based on clinical findings or findings on other noninvasive imaging tests and planned coronary angiography within the next 14 days. * Able to understand and willing to sign the Informed CF. Exclusion Criteria: * Creatinine of above 2.0 mg/dl * Age below 50 years * Women of child bearing potential (no hysterectomy, no menopause, or menopause since less than 12 months) must demonstrate a negative pregnancy test performed within 24 hours before CT. * Inability to hold the breath for 10 seconds