scholarly journals Evaluation of Diagnostic Performance of MDCT Coronary Angiography in Comparison with Conventional Coronary Angiography

2022 ◽  
Vol 9 (3) ◽  
pp. 35-38
Author(s):  
Sachin Kumar
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Coronary Angiography ◽  
Patient Group ◽  
Conventional Coronary Angiography ◽  
Ct Scanner ◽  
Heart Rates ◽  
Vessel Lumen ◽  
Artery Disease ◽  
Mdct Coronary Angiography

Abstract Background: Coronary artery disease is now becoming increasingly prevalent than before especially in younger age groups. We in the current study tried to evaluate the potential of 128 slice MDCT coronary angiography for the detection of stenotic coronary lesions by comparing the results of computed tomographic coronary angiography to a gold standard set by Conventional coronary angiography. Methods: A total of n=30 patients with clinically suspected Coronary artery disease. They were evaluated with 128 Slice CT Scanner (PHILIPS INGENUITY) and conventional coronary angiography. All patients were examined with a 128 slice MDCT scanner (Philips Ingenuity 128 slice Netherlands) using standard cardiac CT protocol. Gantry rotation time was 400 ms with a half sector acquisition protocol and multisector reconstruction permitting an effective temporal resolution between 50 and 200 ms depending on patient heart rate. Results: In the n=30 Patients included in the study with CCA, the n=450 coronary segments included in the study were found to contain a total number of n=138 stenoses among them non-significant stenoses. The accuracy of MDCT detection of coronary stenoses greater than 50% diameter of vessel lumen is about 94.78. When raising the threshold for stenosis from 50% to 70% of the vessel lumen, so that only hemodynamic relevant stenoses enter the evaluation, the sensitivity decreases from 88%. The MDCT detection in the patient group with heart rates below 60 beats per minute higher values for sensitivity 93% and specificity 97% were observed, compared to sensitivity 87% and specificity 93% of the patient group with heart rates above 60 beats per minute. Conclusion:The present study revealed that a high negative predictive value (98.08%)suggests that 128- Slice MDCT coronary angiography is a good screening modality for evaluation of patients with mild to intermediate-risk factors who might otherwise require invasive angiography.

Anemia increases long-term mortality in patients undergoing conventional coronary angiography – the ECAT registry

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
B Balcer ◽  
I Dykun ◽  
S Hendricks ◽  
F Al-Rashid ◽  
M Totzeck ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Regression Analysis ◽  
Coronary Artery ◽  
Coronary Angiography ◽  
Conventional Coronary Angiography ◽  
Term Survival ◽  
Coronary Syndrome ◽  
Artery Disease

Abstract Background Anemia is a frequent comorbidity in patients with coronary artery disease (CAD). Besides a complemental effect on myocardial oxygen undersupply of CAD and anemia, available data suggests that it may independently impact the prognosis in CAD patients. We aimed to determine the association of anemia with long-term survival in a longitudinal registry of patients undergoing conventional coronary angiography. Methods The present analysis is based on the ECAD registry of patients undergoing conventional coronary angiography at the Department of Cardiology and Vascular Medicine at the University Clinic Essen between 2004 and 2019. For this analysis, we excluded all patients with missing hemoglobin levels at baseline admission or missing follow-up information. Anemia was defined as a hemoglobin level of <13.0g/dl for male and <12.0g/dl for female patients according to the world health organization's definition. Cox regression analysis was used to determine the association of anemia with morality, stratifying by clinical presentation of patients. Hazard ratio and 95% confidence interval are depicted for presence vs. absence of anemia. Results Overall, data from 28,917 patient admissions (mean age: 65.3±13.2 years, 69% male) were included in our analysis (22,570 patients without and 6,347 patients with anemia). Prevalence of anemia increased by age group (age <50 years: 16.0%, age ≥80 years: 27.7%). During a mean follow-up of 3.2±3.4 years, 4,792 deaths of any cause occurred (16.6%). In patients with anemia, mortality was relevantly higher as compared to patients without anemia (13.4% vs. 28.0% for patients without and with anemia, respectively, p<0.0001, figure 1). In univariate regression analysis, anemia was associated with 2.4-fold increased mortality risk (2.27–2.55, p<0.0001). Effect sizes remained stable upon adjustment for traditional risk factors (2.38 [2.18–2.61], p<0.0001). Mortality risk accountable to anemia was significantly higher for patients receiving coronary interventions (2.62 [2.35–2.92], p<0.0001) as compared to purely diagnostic coronary angiography examinations (2.31 [2.15–2.47], p<0.0001). Likewise, survival probability was slightly worse for patients with anemia in acute coronary syndrome (2.70 [2.29–3.12], p<0.0001) compared to chronic coronary syndrome (2.60 [2.17–3.12], p<0.0001). Interestingly, within the ACS entity, association of anemia with mortality was relevantly lower in STEMI patients (1.64 [1.10–2.44], p=0.014) as compared to NSTEMI and IAP (NSTEMI: 2.68 [2.09–3.44], p<0.0001; IAP: 2.67 [2.06–3.47], p<0.0001). Conclusion In this large registry of patients undergoing conventional coronary angiography, anemia was a frequent comorbidity. Anemia relevantly influences log-term survival, especially in patients receiving percutaneous coronary interventions. Our results confirm the important role of anemia for prognosis in patients with coronary artery disease, demonstrating the need for specific treatment options. Figure 1. Kaplan Meier analysis Funding Acknowledgement Type of funding source: None

A Randomized Trial Comparing Dual Axis Rotational Versus Conventional Coronary Angiography in a Population with a High Prevalence of Coronary Artery Disease

2014 ◽  
Vol 27 (5) ◽  
pp. 456-464 ◽  
Author(s):  
RAFAEL S. O. GIUBERTI ◽  
ADRIANO CAIXETA ◽  
ANTÔNIO C. CARVALHO ◽  
MILTON M. SOARES ◽  
ERLON O. ABREU-SILVA ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Coronary Angiography ◽  
Randomized Trial ◽  
Conventional Coronary Angiography ◽  
High Prevalence ◽  
Artery Disease

scholarly journals Does Myocardial Bridge Appear More Frequently and Diffusely on Radial Access Coronary Angiography?

2021 ◽  
Author(s):  
oktay senoz ◽  
zeynep yapan emren
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Coronary Angiography ◽  
Coronary Arteries ◽  
Clinical Laboratory ◽  
Conventional Coronary Angiography ◽  
Myocardial Bridge ◽  
Radial Access ◽  
Left Anterior Descending Artery ◽  
Artery Disease

Abstract Background: Although the incidence of myocardial bridge (MB) has been defined in different conventional coronary angiography (CCA) studies,the frequency of MB in radial access coronary angiography (RACA) is unknown.The aim of this study was to determine the incidence of MB in patients undergoing RACA.Method: A total of 2600 consecutive patients who underwent RACA were retrospectively investigated to detect the presence of MB.The clinical,laboratory, and angiographic features of the patients with MB were analyzed. Results: MB was detected at an incidence of 10.2%, in 255/2600 patients who underwent RACA.The most involved coronary artery was the left anterior descending artery (LAD) (86.9%) and the mid segment (84.9%) was the most affected section.Co-involvement of multiple coronary arteries by MB was 7.8%. Coronary artery disease (CAD) was determined in 102 (36.2%) of the coronary arteries with MB, 82.4% which were proximal to the MB.Conclusion: These data demonstrated that the incidence of MB able to be detected on RACA was much higher than reported in previous CCA studies.

scholarly journals Diagnostic Accuracy of 128-Slice Dual Source CT Coronary Angiography with Invasive Catheter Coronary Angiography in a Tertiary Care Teaching Hospital

2021 ◽  
Vol 15 (6) ◽  
pp. 2057-2062
Author(s):  
Vishram Singh ◽  
Suresh Babu Kottapalli ◽  
Rakesh Gupta ◽  
Nitin Agarwal ◽  
Yogesh Yadav
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Coronary Angiography ◽  
Diagnostic Accuracy ◽  
Coronary Arteries ◽  
Ct Coronary Angiography ◽  
Dual Source Ct ◽  
Ct Scanner ◽  
Dual Source ◽  
Artery Disease

Background: Coronary artery disease (CAD) morbidity and mortality increasing day by day in India as well as worldwide. Coronary arteries visualization by using invasive catheterization angiography is still using as a front-line diagnostic tool to evaluate the patients with CAD. 128 slice dual source CT improves the cardiac imaging such as high scanning speed, good temporal resolution and low radiation dose. Objective: To assess the diagnostic accuracy of 128-slice dual source CT cardiac angiography with conventional catheter angiography to find common arteries involved in CAD. Methods: This is a prospective, comparative, cross sectional study conducted at cardiology OPD. Patients with complaint of chest pain and suspected CAD were evaluated by CT and conventional coronary angiography and results were compared. Serum creatinine and ECG status were analyzed before the angiography. SIEMENS 128-slice Dual Source Flash Definition CT Scanner was used as a CT coronary angiography. Severity distribution of coronary artery disease, artery wise distribution of non-significant, significant lesions and coronary artery dominance pattern were analyzed and compared. Results: A total of 70 suspected CAD patients were selected and analyzed. American Heart Association (AHA) model of 17-segment was used to assess the coronary arteries. Normal angiograms reported in 15.71% patients and 58.57% had significant disease. A total of 356 lesions were identified from 690 out of 720 segments. Right coronary artery (RCA) is the most common location of significant lesions which contributes 33.5% (n=55/164). Coronary circulation of right-sided dominance was most commonly reported (70.0%). CT angiography showed 96.13% of an overall sensitivity, 96.28% specificity, 89.72% positive predictive value and 98.49% negative predictive value. Conclusion: 128-slice dual source CT scanner has showed high accuracy and act as non-invasive assessment of coronary arteries in patients with CAD Keywords: Cardiac angiography, Catheter coronary angiography, CT coronary angiography, 128-slice MDCT, Conventional angiography

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