Coronary lesions quantification with dual-axis rotational coronary angiography

Area of Science:

• Cardiology
• Medical Imaging
• Interventional Cardiology

Background:

• Coronary angiography (CA) is the standard for coronary artery disease assessment but uses limited projections.
• Bidimensional projections in CA may not optimally define coronary segments.
• Rotational angiography (RA) XperSwing offers multi-view visualization with a single contrast injection.

Purpose of the Study:

• To evaluate the accuracy of coronary lesion quantification using RA XperSwing.
• To compare lesion measurements obtained with RA XperSwing against standard projections.

Main Methods:

• Quantitative coronary analysis of significant stenosis (>50%) was performed.
• Lesions were measured in optimal (DARCA-derived) and standard projections.
• Intra- and inter-observer correlation was assessed using Kappa index.

Main Results:

• 205 lesions in 147 patients were analyzed.
• RA XperSwing yielded significantly greater lesion length and vessel diameter measurements.
• Improved characterization was noted, especially in segments with greater angulation.

Conclusions:

• RA XperSwing enhances coronary artery visualization and lesion characterization.
• The technique provides more accurate quantitative measurements of coronary lesions.
• RA XperSwing is particularly beneficial for assessing lesions in tortuous coronary segments.