Each patient initially underwent standard selective coronary angiography via the radial artery using a 5-F or 6-F catheter system. Coronary angiograms were analyzed quantitatively using a QAngio XA system (Medis Medical Imaging Systems, Leiden, The Netherlands). FFR was measured during stable hyperemia induced by intravenous adenosine (140 μg/kg/min through a central vein). These measurements were performed as part of the diagnostic catheterization, and the patients with FFR values ≤ 0.80 underwent ad-hoc PCI.
Qangio xa system
Manufactured by Medis Medical Imaging Systems
The QAngio XA system is a medical imaging device used for visualizing and analyzing blood vessels. It provides quantitative assessment of coronary and peripheral arteries. The system generates high-quality angiographic images to support clinical decision-making.
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Lab products found in correlation
3 protocols using qangio xa system
1
Coronary Angiography and FFR-Guided PCI
2
Invasive Coronary Angiography and PCI
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Invasive coronary angiography and revascularization of the infarct‐related artery were performed with ad‐hoc PCI via the routine use of drug‐eluting stents with a 6‐Fr system. Before the PCI procedure, all patients received a loading dose of 200 mg aspirin and 300 mg clopidogrel or 20 mg prasugrel. Coronary angiograms were analyzed quantitatively using a QAngio XA system (Medis Medical Imaging Systems, Leiden, The Netherlands). The stent type and procedure strategy selected were at the operator's discretion. To avoid aggressive stent expansion, online quantitative coronary angiography was used to determine the correct stent size. After reperfusion therapy, standard dual antiplatelet therapy was started according to current guidelines. Physiological measurements (FFR) were performed for all lesions showing intermediate stenosis (visual estimation between 30% and 90% diameter stenosis). All patients were instructed to strictly refrain from ingesting caffeinated beverages after admission. FFR was determined using a Radi Analyzer Xpress instrument with a Certus coronary pressure wire (Abbott Vascular, St. Paul, MN, USA). FFR was calculated as the ratio of the mean distal coronary pressure to the mean aortic pressure during stable hyperemia induced by intravenous adenosine (140 μg/kg per minute through a central vein).
3
Invasive Coronary Angiography and PCI
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Invasive coronary angiography (CAG) and revascularization of the IR lesion were performed by ad-hoc PCI via the routine use of drug-eluting stents with a 6-French system. Before the PCI procedure, all patients received a loading dose of 200 mg aspirin and 300 mg clopidogrel or 20 mg prasugrel. Coronary angiograms were analyzed quantitatively using QAngio XA system (Medis Medical Imaging Systems, The Netherlands). The IR lesion was identified by the combination of electrocardiography (ECG), echocardiography, and coronary angiographic findings by two expert interventionalists. The stent type and procedure strategy selected were at the operator's discretion.
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