Impact of stress single-photon emission computed tomography perfusion imaging on downstream resource utilization

Area of Science:

• Cardiology
• Nuclear Medicine
• Diagnostic Imaging

Background:

• Coronary artery disease (CAD) diagnosis often involves invasive procedures.
• Intermediate pretest probability patients require careful diagnostic stratification.
• Non-invasive imaging plays a crucial role in guiding cardiovascular interventions.

Purpose of the Study:

• To evaluate the clinical and economic impact of stress single-photon emission computed tomography (SPECT) perfusion imaging.
• To compare SPECT imaging strategy versus routine coronary angiography in intermediate CAD risk patients.

Main Methods:

• Retrospective analysis of patients with intermediate pretest probability of CAD.
• Comparison of outcomes between patients managed with SPECT perfusion imaging and those undergoing routine coronary angiography.
• Economic analysis of both diagnostic strategies.

Main Results:

• SPECT perfusion imaging significantly decreased the rates of coronary angiography.
• Coronary revascularization rates were also reduced in the SPECT imaging group.
• The SPECT imaging strategy was found to be economically superior to routine coronary angiography.

Conclusions:

• Stress SPECT perfusion imaging is an effective non-invasive tool for managing patients with intermediate CAD risk.
• This imaging modality offers both clinical benefits by reducing unnecessary invasive procedures and economic advantages.
• Integrating stress SPECT perfusion imaging into clinical practice can optimize patient care pathways and resource utilization.