10/29/2022 0 Comments What are contiguous leads![]() ![]() Moreover, the STE amplitude in 40% (24 out of 60) of cases reached the threshold specified in the STEMI guideline. According to cluster analysis in the heat map, STE leads were clustered into two categories, comprising of the right precordial leads (V1, V2, V3) and others (V4, V5, V6, I, II, III, aVF, aVL, aVR). The ST-segment shifts of each lead of each collected ECG could be conveniently visualized in the heat map. STE leads were mainly in the V1, V2 and V3 leads. In total, 60 cases of electrocardiographic LVH with STE were screened and analyzed. Cluster analysis was carried out based on the heat map and the results were drawn as tree maps (pedigree maps) in the heat map. WHAT ARE CONTIGUOUS LEADS SOFTWAREHemI 1.0 software was used to draw heat maps to display the STE of each lead of each collected ECG. We sequentially collected the electrocardiograms of inpatients in the First Affiliated Hospital of Shantou University Medical College from July 2015 to December 2015 in order to screen cases of LVH with STE. The aim of this study was to analyze and show data for electrocardiographic left ventricular hypertrophy (LVH) with ST-segment elevation (STE) by a heat map in order to explore the feasibility and clinical value of heat mapping for ECG data visualization. ![]() Few papers display ECG data by visual means. Most electrocardiogram (ECG) studies still take advantage of traditional statistical functions, and the results are mostly presented in tables, histograms, and curves. There is high negative predictive value for ST elevation in aVR to predict LMS disease or 3VCAD. Conclusion: NSTEMI patients with ST elevation in aVR may have higher chances of having LMS disease or 3VCAD. Sensitivity, specificity, positive predive value and negative predictive value of ST elevation in aVR for 3VCAD was 77.14%, 53.52%, 29.67% and 90.24% respectively. 3 VCAD was found in 54 (29.70%) with ST elevation in aVR. Sensitivity, specificity, positive predive value and negative predictive value of ST elevation in aVR for LMS disease was 62.35%, 50.57%, 29.12% and 80.49% respectively. LMS disease was found in 53 (29.10%) patients with ST elevation in aVR. 182 (52.60%) patients of NSTEMI had ST elevation in aVR. Results: Mean age of patients was 51.87☑0.03 years. Coronary angiography was performed in all patients and angiographic findings were noted. Patients were categorized as NSTEMI with or without ST-elevation in lead aVR. All patients underwent electrocardiography (ECG) and cardiac specific troponin-I assessment. The data on demographic details was collected. Methodology: Total 346 patients with NSTEMI having age 30-70 years were included in this descriptive cross-sectional study. Objectives: To determine frequency of left main stem (LMS) and triple vessel coronary artery disease (3VCAD) in patients of Non-ST-elevation myocardial infarction (NSTEMI) and to compare the frequency of LMS and 3VCAD in patients with NSTEMI with or without ST elevation in lead aVR. ![]()
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