Coronary stent assessment with 64-slice multislice computed tomography: a literature review

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Coronary in-stent restenosis (ISR) and thrombosis are significant complications following coronary stenting, leading to recurrent cardiac ischemia.
• The increasing prevalence of coronary stenting necessitates effective diagnostic tools for symptomatic patients.
• Drug-eluting stents have ISR and thrombosis rates of up to 10% and 0.8%, respectively.

Purpose of the Study:

• To review the utility of 64-slice multislice computed tomography (CT) for evaluating coronary stents.
• To examine the advantages and disadvantages of CT in diagnosing ISR and stent thrombosis.
• To outline techniques for optimizing diagnostic accuracy in coronary stent imaging.

Main Methods:

• Review of current literature on 64-slice multislice CT for coronary stent evaluation.
• Analysis of technological advancements in CT spatial and temporal resolution and reconstruction software.
• Discussion of diagnostic challenges and optimization strategies for coronary CT angiography.

Main Results:

• Advances in CT technology have mitigated challenges in imaging high-density stent materials near calcified vessels.
• 64-slice multislice CT demonstrates potential as a noninvasive tool for assessing coronary stents.
• Specific techniques can enhance the diagnostic accuracy of CT for ISR and stent thrombosis.

Conclusions:

• 64-slice multislice CT is a valuable noninvasive imaging modality for evaluating coronary stents.
• Understanding the capabilities and limitations of CT is crucial for accurate diagnosis of ISR and thrombosis.
• Optimized CT protocols are essential for improving patient outcomes in stented coronary arteries.