AI Article Synopsis
- The study aimed to assess the effectiveness of a high-speed dual-source computed tomography (DSCT) scanner in detecting significant coronary artery blockages in a diverse group of patients.
- A total of 100 symptomatic patients were evaluated, with results showing that DSCT had high sensitivity (95%) and specificity (95%) for detecting significant coronary lesions compared to conventional angiography.
- The findings suggest that DSCT is a reliable non-invasive option for diagnosing significant coronary stenosis in patients with various forms of chest pain or heart conditions.
Article Abstract
Objectives: Our objective was to prospectively evaluate the diagnostic performance of the high-speed dual-source computed tomography scanner (DSCT), with an increased temporal resolution (83 ms), for the detection of significant coronary lesions (> or =50% lumen diameter reduction) in a clinically wide range of patients.
Background: Cardiac motion artifacts may decrease coronary image quality with use of earlier computed tomography scanners that have a limited temporal resolution.
Methods: We prospectively studied 100 symptomatic patients (79 men, 21 women, mean age 61 +/- 11 years) with atypical (18%) or typical (55%) angina pectoris, or unstable coronary artery disease (27%) scheduled for conventional coronary angiography. Mean scan time was 8.58 +/- 1.52 s. Mean heart rate was 68 +/- 11 beats/min. Quantitative coronary angiography was used as the standard of reference. Irrespective of image quality or vessel size, all segments were included for analysis.
Results: Invasive coronary angiography demonstrated no significant disease in 23%, single-vessel disease in 31%, and multivessel disease in 46% of patients; 1,489 coronary segments, containing 220 significant (14.8%) stenoses, were available for analysis. Sensitivity, specificity, and positive and negative predictive values of DSCT coronary angiography for the detection of significant lesions on a segment-by-segment analysis were 95% (95% confidence interval [CI] 90 to 97), 95% (95% CI 93 to 96), 75% (95% CI 69 to 80), 99% (95% CI 98 to 99), respectively, and on a patient-based analysis 99% (95% CI 92 to 100), 87% (95% CI 65 to 97), 96% (95% CI 89 to 99), and 95% (95% CI 74 to 100), respectively.
Conclusions: Noninvasive DSCT coronary angiography is highly sensitive to detect and to reliably rule out the presence of a significant coronary stenosis in patients presenting with atypical or typical angina pectoris, or unstable coronary artery disease.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jacc.2007.04.068 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparison of single-catheter with two-catheter concept in older female patients undergoing transradial coronary angiography.
Herz
January 2025
Faculty of Medicine, Department of Cardiology, Bilecik Şeyh Edebali University, Pelitözü Mahallesi Fatih Sultan Mehmet Blv. No. 27 Merkez, Bilecik, Turkey.
Background: The aim of this study was to compare the efficacy outcomes of the traditional Judkins left and right catheters with those of the recently introduced Tiger catheter in female participants aged 65 years and older who underwent transradial coronary angiography.
Methods: A cohort of 160 female patients aged 65 and older who were scheduled for coronary angiography (CAG) were divided into two groups according to the use of Tiger (n = 80) or Judkins (n = 80) catheters for radial angiography at a ratio of 1:1, respectively. We analyzed the effectiveness of the Tiger and Judkins catheters, the incidence of catheter failure, contrast volume, CAG time, fluoroscopy time, dose-area product (in mGy/cm), and the occurrence of radial spasm.
The role of non-invasive stress testing in the diagnosis of coronary microvascular disease.
Cardiovasc Revasc Med
December 2024
Department of Cardiology, Tel Aviv Sourasky Medical Center, affiliated with the School of Medicine, Tel Aviv University, Israel.
Background: Angina with non-obstructive coronary artery disease (ANOCA) is commonly observed in patients with stable angina undergoing coronary angiography. Current guidelines recommend non-invasive stress testing as the first step in diagnosing coronary microvascular disease (CMD). This study aims to evaluate the diagnostic value of non-invasive stress testing in patients invasively diagnosed with CMD.
View Article and Find Full Text PDFEndothelialization of coronary stents after intra-luminal adenoviral VEGF-A gene transfer in a preclinical porcine restenosis model - Studies with optical coherence tomography, angioscopy, multiphoton and scanning electron microscopy.
J Mol Cell Cardiol
December 2024
A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland; Heart Centre and Gene Therapy Unit, Kuopio University Hospital, Kuopio, Finland. Electronic address:
Background: Coronary stenting operations have become the main option for the treatment of coronary heart disease. Vessel recovery after stenting has emerged as a critical factor in reducing possible complications. In this study, we evaluated the feasibility, safety and efficacy of locally administered intraluminal gene therapy delivered using a specialized infusion balloon catheter.
View Article and Find Full Text PDFPredictive value of epicardial adipose tissue volume for early detection of left ventricular dysfunction in patients suspected of coronary artery disease.
Clin Radiol
November 2024
Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Rd., Wuhan 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China. Electronic address:
Aim: To investigate the relationship between epicardial adipose tissue (EAT) and myocardial strain and the severity of coronary artery disease (CAD), and to evaluate the predictive value of EAT parameters in early left ventricular (LV) diastolic dysfunction.
Materials And Methods: One hundred seventy patients with suspected CAD who underwent both coronary computed tomography angiography and echocardiography were enrolled in 2020. LV global strains were calculated using commercial software.
Association Between Nocturnal Hypoxemia Parameters and Coronary Microvascular Dysfunction: A Cross-Sectional Study.
Nat Sci Sleep
December 2024
Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, People's Republic of China.
Objective: There is a connection between obstructive sleep apnea (OSA) and coronary microvascular dysfunction (CMD), but the underlying mechanisms remain unclear. This study aims to evaluate the correlation between OSA-related nocturnal hypoxemia parameters and CMD.
Methods: This is an observational, single-center study that included patients who underwent polysomnography and coronary angiography during hospitalization.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!