Abstract 2941: Combined Assessment of Coronary Artery Stenosis and Myocardial Ischemia by Rest-Dipyridamole Stress Multidetector Computed Tomography

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Patricia M Carrascosa ◽  
Carlos Capuñay ◽  
Jorge Carrascosa ◽  
Alejandro Deviggiano ◽  
Alejandro Goldsmit ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Myocardial Ischemia ◽  
Contrast Enhancement ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
Artery Disease ◽  
Mdct Coronary Angiography ◽  
Dipyridamole Stress

Introduction: MDCT coronary angiography has been evolving as a noninvasive method for the assessment of coronary artery disease (CAD). More recently, It has been demonstrated that MDCT identifies reduced contrast enhancement in ischemic and/or scarred myocardial segments. Objective: to determine the ability of rest-stress multidetector computed tomography (RS-MDCT) to detect myocardial ischemia and to assess the relationship between MDCT myocardial perfusion abnormalities and coronary artery stenosis. Methods: Forty seven patients underwent stress/rest 99mTc sestamibi SPECT and RS-MDCT, using a 16-row detector scanner (Philips Brilliance-16). Myocardial segments were classified by SPECT as normal, ischemic or scarred. SPECT results were then compared with MDCT regional myocardial contrast enhancement. The results of MDCT coronary angiography were also analyzed in 20 patients who underwent invasive catheterization. Results: The presence of a reduction in contrast enhancement at rest by MDCT identified scar by SPECT with 96% sensitivity and 98% specificity. A stress-induced reduction in contrast enhancement by MDCT identified ischemia by SPECT with 77% sensitivity and 99% specificity. The segment-based sensitivity and specificity for the detection of significant stenosis by MDCT were 92% and 98%, respectively. Conclusion: Our results showed that a rest-dipyridamole stress MDCT protocol can identify the presence of myocardial ischemia as well as the severity of coronary artery stenosis in patients with suspected coronary artery disease.

scholarly journals Association between ceramides and coronary artery stenosis in patients with coronary artery disease

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Chenchen Tu ◽  
Lan Xie ◽  
Zhenjie Wang ◽  
Lili Zhang ◽  
Hongmei Wu ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
Artery Disease

Volume elastic modulus of the brachial artery and coronary artery stenosis in patients with suspected stable coronary artery disease

2015 ◽  
Vol 31 (9) ◽  
pp. 1467-1475
Author(s):  
Ryo Munakata ◽  
Toshiaki Otsuka ◽  
Saori Uchiyama ◽  
Tetsuro Shimura ◽  
Osamu Kurihara ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Elastic Modulus ◽  
Coronary Artery ◽  
Brachial Artery ◽  
Coronary Artery Stenosis ◽  
Stable Coronary Artery Disease ◽  
Artery Stenosis ◽  
Volume Elastic Modulus ◽  
Artery Disease

scholarly journals Apolipoprotein B/A1 Ratio Is Associated with Severity of Coronary Artery Stenosis in CAD Patients but Not in Non-CAD Patients Undergoing Percutaneous Coronary Intervention

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Rui Hua ◽  
Yijun Li ◽  
Wenyuan Li ◽  
Zhen Wei ◽  
Zuyi Yuan ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Apolipoprotein B ◽  
Coronary Artery Stenosis ◽  
Coronary Intervention ◽  
Artery Stenosis ◽  
Gensini Score ◽  
Percutaneous Coronary ◽  
Coronary Lesions ◽  
Artery Disease

Background and Aims. Lipid metabolism plays important roles in atherosclerosis. Several studies have found that lipoprotein is associated with coronary artery disease (CAD) and hyperlipidemia. Although the roles of the apolipoprotein B/A1 ratio (ApoB/A1) were originally thought to be atherosclerotic, few studies have focused on the specific relationship between ApoB/A1 and severity of coronary artery stenosis with or without the presence of CAD. Methods. A total of 6956 consecutive patients aged 21–98 years with suspected CAD who had undergone coronary angiography were enrolled. The severity of coronary lesions was evaluated using the Gensini score (GS). The relationships between ApoB/A1 and severity of coronary artery stenosis were evaluated. Results. A total of 1795 non-CAD patients and 5161 CAD patients were included in the observational analysis. Patients with CAD had higher ApoB/A1 than individuals without CAD (0.67 (0.53-0.82) vs. 0.61 (0.49-0.75), p < 0.001 ). In CAD patients, the higher the ApoB/A1 was, the higher the proportion of patients with MI, triple-vessel lesions, and higher Gensini scores. ApoB/A1 was significantly positively correlated with HbA1c and Gensini scores in CAD patients but not in non-CAD patients (all p < 0.001 ). Logistic analyses showed that ApoB/A1 could be a risk factor for multivessel disease (OR: 2.768, 95% CI: 1.868-4.103, p < 0.001 ). ApoB/A1 was found to be significantly positively correlated with the Gensini score in CAD patients. Conclusions. ApoB/A1 is highly associated with the presence and severity of coronary artery stenosis in patients with CAD but not in non-CAD patients.

scholarly journals NON-INVASIVE FFR DERIVED FROM STANDARD ACQUIRED CORONARY COMPUTED TOMOGRAPHY ANGIOGRAPHY (CTA) DATASETS (FFRCT) FOR THE DIAGNOSIS OF MYOCARDIAL ISCHEMIA IN PATIENTS WITH CORONARY ARTERY DISEASE (CAD): FIRST DATA OF CLINICAL USE. COMPARISON WITH INVASIVE MEASUREMENT

2018 ◽  
pp. 47-55 ◽  
Author(s):  
E. S. Pershina ◽  
V. E. Sinitsin ◽  
E. A. Mershina ◽  
I. M. Arkhipova ◽  
S. P. Semitko ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Myocardial Ischemia ◽  
Computed Tomography Angiography ◽  
Coronary Computed Tomography Angiography ◽  
Stable Coronary Artery Disease ◽  
Coronary Computed Tomography ◽  
Non Invasive ◽  
Artery Disease

Objectives: to determine the diagnostic performance of non-invasive FFR derived from standard acquired coronary computed tomography angiography (CTA) datasets (FFRCT) for the diagnosis of myocardial ischemia in patients with suspected stable coronary artery disease (CAD).Methods.Prospective study included 16 patients ((m/f – 13/3 mean age 47.8 ± 2.3 years) with CAD and coronary stenosis 40–75% lumen reduction. Coronary CTA was performed prior to ICA with invasive FFR measurement. FFRCT was calculated and interpreted in a blinded fashion by an independent Core Laboratory (HeartFlow, USA). Results were compared to invasively measured FFR, with ischemia defined as FFRCT or FFR ≤ 0.80.Results. The area under the receiver operating characteristic curve (95% CI) for FFCT was 0.90. Per-vessel sensitivity and specificity to identify myocardial ischemia were 91% and 89% for FFRCT.Conclusion.FFRCT provides high diagnostic accuracy, and discrimination for the diagnosis of hemodynamically significant CAD with invasive FFR as the reference standard. 

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