The Prevalence of Radial Artery Occlusion in Diagnostic Cardiac Catheterization and Percutaneous Intervention

The purpose of this study is to establish the rate of radial artery occlusion post
diagnostic/interventional cardiac catheterization through different modalities, and to
compare current assessment methods (such as Allen's test, Modified Barbeau test and duplex
ultrasonography) to specialized imaging techniques for sensitivity and specificity of radial
artery occlusion detection post transradial catheterization.

The study hypothesis is that specialized imaging can provide a specific focused analysis of
hand characteristics to identify physiologic abnormalities as a result of radial artery
occlusion post transradial catheterization.

Inclusion Criteria:

- Adult subjects over the age of 18 who present to the Jesse Brown VA cath lab for a
diagnostic radial artery angiogram or percutaneous intervention will be considered for
the study.

Exclusion Criteria:

- Any subject who is unable to give informed consent or declines to participate will be
excluded.

- Patients who have previously had a cardiac catheterization through the radial artery
will be excluded because it will not be known if the changes to the circulation of the
hand is secondary to the current or previous transradial catheterization.