Detecting and differentiating white from red coronary thrombus by angiography in angina pectoris and in acute...

Area of Science:

• Cardiovascular medicine
• Medical imaging
• Interventional cardiology

Background:

• Thrombus formation is a critical factor in cardiovascular events.
• Accurate detection of thrombus is essential for effective interventional procedures.
• Angiography is a primary imaging modality, but its sensitivity for different thrombus types requires evaluation.

Purpose of the Study:

• To evaluate the diagnostic accuracy of angiography in detecting thrombus.
• To compare the detection rates of white thrombus versus red thrombus using angiography.
• To assess the clinical utility of angiography in interventional settings.

Main Methods:

• Prospective study involving patients undergoing interventional procedures.
• Angioscopy performed prior to angiography for direct visualization.
• Blinded comparison of angiography findings against angioscopy results.
• Calculation of sensitivity, specificity, and predictive values for thrombus detection.

Main Results:

• Angiography demonstrated 100% sensitivity and specificity for detecting red thrombus.
• Sensitivity for white thrombus detection was 50%, with 95% specificity.
• Overall positive predictive value for thrombus detection was 89%, and negative predictive value was 83%.

Conclusions:

• Angiography is highly effective for identifying red thrombus.
• The detection of white thrombus by angiography is suboptimal, necessitating complementary diagnostic approaches.
• These findings have implications for procedural planning and thrombus management in interventional cardiology.