Comparison of Isovue 370 vs. Standard Protocol in Coronary Computed Tomographic Angiography (CTA)

Comparison of the Use of High Iodine Concentration Contrast Material (Isovue 370) vs. Standard Protocol in Coronary Computed Tomographic Angiography (CTA)

Computed Tomography Angiogram (CTA) scans are performed routinely to look at the vessels in the body as an alternative to directly injecting contrast into the vessels and taking pictures. Different types of intravenous (into the vein, IV) contrast are available to fill the vessels and make them easier to see. The purpose of the study is to determine the best type of contrast for this scan.

Inclusion Criteria:

• adult patients who are referred for coronary CTA for suspected or known coronary artery disease

Exclusion Criteria:

• creatinine greater than 2.0
• allergy to contrast media
• patients under the age of 18
• women who are pregnant or breast feeding
• patients with cardiac arrhythmia will also be excluded