In this study, we aimed to investigate the clinical significance of the angiography-based IMR calculation method (AccuIMR) and its prognostic assessment capability by evaluating the concordance or discordance between AccuIMR values and cardiac magnetic resonance (CMR) results.
Study Type
OBSERVATIONAL
Enrollment
843
Coronary microvascular function was assessed using contrast-enhanced CMR after PCI.
Renji Hospital
Shanghai, Shanghai Municipality, China
CMR
Contrast-enhanced CMR was performed on a 3.0-T scanner (Achieva TX, Philips Healthcare, Best, The Netherlands) . All sequences were acquired during breath-hold with a field of view at 350 × 350 mm2. Two experienced readers, blinded to clinical data, evaluated the CMR results using validated software (QMass MR 7.5, Medis, Leiden, The Netherlands). The acquired images were utilized to assess ventricular parameters and calculate the left ventricular ejection fraction (LVEF).
Time frame: CMR was performed at a median of 5 days post-reperfusion.
LDL-C, mmol/L
Low-density cholesterol (LDL-C) is the cholesterol in low-density lipoprotein (LDL), which reflects how much LDL is present.
Time frame: Blood samples were collected after a 12-hour fast in the second day post-PCI.
HbA1c, %
Hemoglobin a1c (HbA1c) is the combination of hemoglobin and blood sugar. Its concentration in the blood is stable and is not affected by short-term blood sugar concentrations. Hemoglobin A1C has obvious clinical value in the diagnosis of diabetes.
Time frame: Blood samples were collected after a 12-hour fast in the second day post-PCI.
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