Skip to main content

Table 5 Comparison of invasive and CMR wave intensity analysis

From: Feasibility of cardiovascular magnetic resonance derived coronary wave intensity analysis

 

Advantages

Disadvantages

Invasive WIA

• More reproducible

• More established evidence base in different pathologies

• Requirement for ionising radiation

• Potential complications of invasive catheterisation

• Difficult to measure bi-directional flow

• Data quality very operator dependent

CMR WIA

• No ionising radiation

• Easier to perform serial studies

• Allows study of healthy population

• More time consuming post-processing

• Requirement for pressure surrogate rather than direct pressure measurement

• May not be valid in patients with increased aortic stiffness

• Limited spatial resolution and partial volume averaging result in underestimation of flow velocities and absolute wave intensity peaks

• Data acquired over multiple cardiac cycles