• The results indicate that cardiac CT might be especially useful in patients with ACS but with pretended normal coronary arteries based on the results of conventional coronary angiography. (escardio.org)
  • It is known that 9% to 31% of women and 4% to 14% of men with acute myocardial infarction have normal coronary arteries or nonsignificant coronary disease at angiography. (escardio.org)
  • This study evaluated the role of 64-slice CT, in comparison with coronary angiography, in detecting and characterizing coronary atherosclerosis in patients with acute myocardial infarction without significant coronary artery stenosis. (escardio.org)
  • Thirty consecutive patients with acute myocardial infarction but without significant coronary stenosis at coronary angiography underwent 64-slice CT. (escardio.org)
  • All coronary segments were quantitatively analyzed by means of coronary angiography (CA-QCA) and 64-slice CT (CT-QCA). (escardio.org)
  • Background Adenosine is frequently used during coronary angiography to induce hyperaemia and allow operators to perform quantitative measurements of lesion severity. (rcpe.ac.uk)
  • Quantitative MSCT coronary angiography (QMSCT-CA) was performed to determine plaque volume for a matched region of interest (regional plaque burden) and in significant plaque defined as a plaque with ≥50% area obstruction in QCU, and compared with QCU. (escardio.org)
  • Since its introduction, the inability to accurately quantify the degree of stenosis as well as plaque volume has been one of the major limitations of non-invasive coronary angiography with Multi-Slice Computed Tomography (MSCTA). (escardio.org)
  • Previous investigations have attempted semi-quantitative approaches but failed to demonstrate adequate correlation with quantitative coronary angiography. (escardio.org)
  • In patients with acute coronary syndrome (ACS), coronary computed tomographic angiography (CCTA) was used to capture adverse geometric characteristics (AGCs) of coronary plaques. (medpagetoday.com)
  • 3 In patients with ACS and 2 or more significant lesions, the culprit lesion was defined using invasive coronary angiography and electrocardiography. (medpagetoday.com)
  • Recent advances in computer vision and machine learning technology have enabled the automated analysis of coronary angiography. (jmir.org)
  • The aim of this paper is to validate the performance of artificial intelligence-based quantitative coronary angiography (AI-QCA) in comparison with that of intravascular ultrasound (IVUS). (jmir.org)
  • BACKGROUND: Diagnosing obstructive coronary artery disease (CAD) in at-risk patients can be challenging and typically requires both noninvasive imaging methods and coronary angiography, the gold standard. (duke.edu)
  • DESIGN: Multicenter prospective trial with blood samples obtained before coronary angiography. (duke.edu)
  • PATIENTS: An independent validation cohort of 526 nondiabetic patients with a clinical indication for coronary angiography. (duke.edu)
  • MEASUREMENTS: Receiver-operating characteristic (ROC) analysis of classifier score measured by real-time polymerase chain reaction, additivity to clinical factors, and reclassification of patient disease likelihood versus disease status defined by quantitative coronary angiography. (duke.edu)
  • Obstructive CAD was defined as 50% or greater stenosis in 1 or more major coronary arteries by quantitative coronary angiography. (duke.edu)
  • Risk stratification and management strategy of intermediate coronary lesions, defined as 50-70% diameter stenosis (DS) at coronary angiography [ 1 , 2 ], remain a challenging issue [ 3 , 4 ]. (hindawi.com)
  • Intravascular ultrasound (IVUS) is superior to coronary angiography in terms of accurate assessment of lumen area and plaque burden and thus is commonly applied to evaluate intermediate stenotic lesions and guide the decision about revascularization in real-world practice [ 4 , 7 ]. (hindawi.com)
  • Coronary computed tomography angiography (CCTA) is a noninvasive method to image the coronary arteries. (medscape.com)
  • In multidetector computed tomographic coronary angiography, strategies to minimize effective radiation dose (ERD) are urgently needed. (elsevierpure.com)
  • A total of 108 patients scheduled for coronary angiography because of chest pain or acute coronary syndromes were studied. (thoracickey.com)
  • However, it can be difficult to determine on angiography whether a stenosis causes ischemia or not. (thoracickey.com)
  • Other testing options are therefore important in the selection for coronary angiography and to distinguish functionally significant from nonsignificant coronary stenoses, with fractional flow reserve as a probable reference for the functional evaluation of a coronary stenosis. (thoracickey.com)
  • Coronary CT angiography for the triage of patients with acute chest pain (BEACON randomized controlled trial). (stanford.edu)
  • The coronary angiography following the drug-eluting balloon angioplasty of the RCA and distal LCX shows normal distal flow in the RCA, PDA as well as in the distal LCX and OM1 and OM2, reflecting successful restoration of luminal flow in both coronary arteries. (siemens-healthineers.com)
  • Coronary angiography shows severe stenosis in the mid-LAD as well as proximal-RCA. (siemens-healthineers.com)
  • However, coronary angiography revealed minor residual disease in the LCX (Figure 6) which was not treated. (siemens-healthineers.com)
  • Coronary angiography reflects occlusion of the RCA stent (left) along with luminal irregularities in the distal-LCX (right) with a reduced fractional flow reserve (FFR) of 0.6, which suggests significant flow impairment. (siemens-healthineers.com)
  • In comparison to the previous coronary angiography, the luminal narrowing in the distal-LCX appears to have slightly increased. (siemens-healthineers.com)
  • Artificial intelligence evaluation of coronary computed tomography angiography for coronary stenosis classification and diagnosis. (cdc.gov)
  • Validation of the commercial coronary computed tomographic angiography artificial intelligence for coronary artery stenosis: a cross-sectional study. (cdc.gov)
  • Performance of machine learning-based coronary computed tomography angiography for selecting revascularization candidates. (cdc.gov)
  • Clinical Evaluation of the Automatic Coronary Artery Disease Reporting and Data System (CAD-RADS) in Coronary Computed Tomography Angiography Using Convolutional Neural Networks. (cdc.gov)
  • October 31, 2022 - Quantifying a person's heart plaque using CT coronary angiography (CTCA) may help in determining the type of heart attack the patient is experiencing, according to research published October 27 in Radiology: Cardiothoracic Imaging . (scanforlife.co.za)
  • A) Image from invasive angiography demonstrates severe stenosis in the distal left anterior descending artery. (scanforlife.co.za)
  • This study evaluated the imaging data of 303 symptomatic patients from the derivation arm of the CREDENCE (Computed TomogRaphic Evaluation of Atherosclerotic Determinants of Myocardial IsChEmia) trial, all of whom underwent coronary computed tomographic angiography and clinically indicated nonemergent invasive coronary angiography upon study enrollment. (gwu.edu)
  • In this blinded angiographic analysis, sites were invited to send angiograms to the Cardiovascular Imaging Research Core Lab (Vancouver, CA). Quantitative coronary angiography percent diameter stenosis (DS), thrombolysis in myocardial infarction (TIMI) flow, myocardial blush grade (MBG) and thrombus grade burden (TGB) were assessed. (sepoy.net)
  • The atheroma volume just after two many years of therapy with niacin / colestipol of global adjust score and quantitative coronary assessment yielded the following MBS: regression, no Adjustments within the composition and progress plus a substantial improvement in diameter stenosis from light and percent minimal by quantitative coronary angiography detected. (c-kitinhibitors.com)
  • 67% stenosis percent in the simvastatin group compared with 3.83% while in the placebo group, P is 0.0003 by quantitative Coronary angiography detected and at the very least probable coronary w over the study period percutaneaous call for. (c-kitinhibitors.com)
  • Post WS, Haberlen SA, Witt MD, Zhang L, Jacobson LP, Brown TT, Margolick JB, Kingsley L, Palella FJ, Budoff M. Suboptimal HIV suppression is associated with progression of coronary artery stenosis: The Multicenter AIDS Cohort Study (MACS) longitudinal coronary CT angiography study. (uams.edu)
  • Objectives: This study sought to identify distinct patient groups and their association with outcome based on the patient similarity network using quantitative coronary plaque characteristics from coronary computed tomography angiography (CTA). (houstonmethodist.org)
  • Coronary angiographic characteristics The number of vessels involved on diagnostic coronary angiography did not differ between the two organizations ( p =0.371) (Table 2). (gasyblog.com)
  • Angiography is the standard imaging approach for detecting fibromuscular dysplasia/arterial stenoses and aneurysms. (medscape.com)
  • The diagnostic and prognostic information available from captopril renography and the increasing availability of magnetic resonance angiography (MRA) have reduced the use of renal arteriography as a diagnostic tool, except in evaluating kidneys with intrarenal branch-artery stenoses and those with complex vascular anatomy, including multiple accessory arteries. (medscape.com)
  • Two-year clinical outcomes are improved with percutaneous coronary intervention (PCI) guided by quantitative flow ratio (QFR) rather than angiography, according to new results from the FAVOR III China trial. (medscape.com)
  • Coronary artery disease is an inflammatory process involving the walls, and subsequent function, of the coronary arteries, and it is at this tissue level where the interaction of these inflammatory mediators results in CAD. (bmj.com)
  • Recently, CRP was identified within early atherosclerotic lesions in human coronary arteries obtained at necropsy. (bmj.com)
  • CT-QCA identified 25 plaques in infarct-related coronary arteries. (escardio.org)
  • Stent induced hemodynamic changes in the coronary arteries are associated with higher risk of adverse clinical outcome. (researchgate.net)
  • A region of interest (ROI) was defined on the MSCT images within the proximal and middle segments of the coronary arteries. (escardio.org)
  • The administration of sublingual nitroglycerin dilates the coronary arteries and increases side branch visualization. (medscape.com)
  • Normal coronary arteries display a predominant diastolic blood flow pattern, which is less marked in the distal right coronary artery (RCA), probably because of lower intramyocardial systolic contraction pressure in the right ventricle. (thoracickey.com)
  • Automatic extraction of coronary arteries using deep learning in invasive coronary angiograms. (cdc.gov)
  • COVID-19 is a pro-inflammatory, clot forming disease and we now see its effect in the coronary arteries. (sepoy.net)
  • 3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses. (ox.ac.uk)
  • This study proposes a novel method to generate 3D models of stenotic coronary arteries, directly from 2D coronary images, and suitable for immediate assessment of the stenosis severity.From multiple 2D X-ray coronary arteriogram projections, 2D vessels were extracted. (ox.ac.uk)
  • Comparison of volume reduction due to a lesion with corresponding FFR measurement suggests that the method may help in estimating the physiological significance of a lesion.The algorithm accurately reconstructed 3D models of lesioned arteries and enabled quantitative assessment of stenoses. (ox.ac.uk)
  • The clinical manifestations reflect the arteries involved and most commonly include hypertension caused by renal-artery stenosis (RAS) or strokes from carotid artery disease. (medscape.com)
  • CTA with maximum intensity projection (MIP) and quantitative measurement of stenosis is an accurate noninvasive technique for diagnosing fibromuscular dysplasia/stenosis of the visceral arteries, regardless of the etiology. (medscape.com)
  • Overview of Coronary Artery Disease Coronary artery disease (CAD) involves impairment of blood flow through the coronary arteries, most commonly by atheromas. (msdmanuals.com)
  • Atherosclerosis: Understanding the relationship between coronary artery disease and stenosis flow reserve. (bmj.com)
  • A subgroup analysis of the on-trial antioxidant vitamin intake database acquired in the Cholesterol Lowering Atherosclerosis Study, a randomized, placebo-controlled, serial angiographic clinical trial evaluating the risk and benefit of colestipol-niacin on coronary artery disease progression. (nih.gov)
  • Noninvasive assessment of coronary atherosclerotic plaque may be useful for risk stratification and treatment of atherosclerosis. (escardio.org)
  • These studies showed, for the first time, that the progression of coronary atherosclerosis could be stopped or reversed by making comprehensive lifestyle changes. (gawlerblog.com)
  • Clinical quantitative coronary artery stenosis and coronary atherosclerosis imaging: a Consensus Statement from the Quantitative Cardiovascular Imaging Study Group. (ox.ac.uk)
  • Also simvastatin / enalapril coronary atherosclerosis research pointed out Hnt, the impact of statins in antiatherosclerotic normocholesterin 394 people mix in excess of 4 many years. (c-kitinhibitors.com)
  • n = 18) underwent directional coronary atherectomy for coronary lesions. (bmj.com)
  • Intravascular lithotripsy can improve the results of PCI of calcified coronary lesions with a low rate of periprocedural complications. (frontiersin.org)
  • Treatment of calcified coronary lesions with IVL in a "real-world" setting can be performed with high success, low rate of procedural complications, and an acceptable MACEs rate. (frontiersin.org)
  • Up to 30% of patients undergoing percutaneous coronary intervention (PCI) have calcified lesions ( 1 ). (frontiersin.org)
  • Several technological developments have been introduced to aid in the treatment of severely calcified coronary lesions. (frontiersin.org)
  • The aim of this study was to evaluate the outcome of IVL-facilitated PCI in an all-comers population with calcified coronary lesions, focusing on the short- and long-term results related to different uses of IVL in the "real-world" practice. (frontiersin.org)
  • This retrospective, observational study included consecutive patients with calcified coronary lesions treated with IVL from December 31, 2018 to December 31, 2020 at the Centro Cardiologico Monzino, University of Milan, Italy. (frontiersin.org)
  • Overall, subjects with supplementary vitamin E intake of 100 IU per day or greater demonstrated less coronary artery lesion progression than did subjects with supplementary vitamin E intake less than 100 IU per day for all lesions (P = .04) and for mild/moderate lesions (P = .01). (nih.gov)
  • A recent study characterized the prognostic value of adverse geometric characteristics of coronary lesions in predicting future acute coronary syndrome events. (medpagetoday.com)
  • We sought to characterize AGCs of coronary lesions capturing location and vessel geometry on baseline CCTA. (medpagetoday.com)
  • The authors hypothesized that beyond current qualitative and quantitative plaque features associated with risk of future ACS, AGCs, including lesion location and vessel geometry, are independently associated with future ACS-causing culprit lesions. (medpagetoday.com)
  • Culprit lesions were defined as single lesions with stenosis identified with the ROMICAT (Rule Out Myocardial Infraction by Computer Assister Tomography) definition. (medpagetoday.com)
  • All coronary lesions were qualitatively evaluated for adverse morphological features, including positive remodeling, low attenuation, spotty calcification, and napkin-ring sign. (medpagetoday.com)
  • Additionally, coronary lesions were identified for 3 AGCs: distance from ostium to lesion, location at vessel bifurcation, and vessel tortuosity, which was defined as the presence of 1 bend of greater than 90 degrees or 3 curves of 45 to 90 degrees. (medpagetoday.com)
  • The risk of future culprit lesions was adjusted for diameter stenosis, number of adverse plaque characteristics, and quantitative plaque characteristics. (medpagetoday.com)
  • Culprit lesions had a greater diameter stenosis, higher prevalence of adverse plaque characteristics, and higher median volumes and burdens of plaque. (medpagetoday.com)
  • An accurate quantitative analysis of coronary artery stenotic lesions is essential to make optimal clinical decisions. (jmir.org)
  • AI-QCA showed a moderate to strong correlation compared with IVUS in analyzing coronary lesions with significant stenosis. (jmir.org)
  • Treatment of coronary intermediate lesions remains a controversy, and the role of arterial remodeling patterns determined by intravascular ultrasound in intermediate lesion is still not well known. (hindawi.com)
  • The aim of this study was to investigate the impact of arterial remodeling of intermediate coronary lesions on long-term clinical outcomes. (hindawi.com)
  • Quantitative flow ratio was assessed for evaluating the functional significance of intermediate lesions. (hindawi.com)
  • As a rule, percutaneous coronary intervention (PCI) with drug-eluting stent implantation for every intermediate lesion could increase the risk of stent thrombosis or restenosis, whereas deferral revascularization of high-risk intermediate lesions might be associated with a higher risk of long-term events [ 5 , 6 ]. (hindawi.com)
  • Accordingly, we sought to investigate the impact of arterial remodeling of intermediate lesions on long-term prognosis in patients with stable coronary artery disease. (hindawi.com)
  • Functionally nonsignificant stenoses are common in the borderline stenosis group (diameter stenosis, 50%-75%) and may as well be found among high-grade stenoses (diameter stenosis, 76%-100%), with a recent study showing that 65% of lesions with diameter stenosis of 50% to 70% and 20% of lesions with diameter stenosis of 71% to 90% were without functional significance. (thoracickey.com)
  • It is unknown whether gender influences the atherosclerotic plaque characteristics (APCs) of lesions of varying angiographic stenosis severity. (gwu.edu)
  • The majority of atherosclerotic lesions responsible for the most serious CAD events (that is, the lesions that are most likely to rupture) are mild stenoses of inconsequential hemodynamic significance and are characterized by an abundance of lipid, numerous inflammatory cells, and a thin, fragile fibrous cap. (medscape.com)
  • This suggests that although measurements of coronary flow reserve (CFR) and fractional flow reserve (FFR), both of which are discussed below, may be useful in the assessment of the severity of stenoses and in the identification of lesions responsible for effort angina, they are not likely to identify the more dangerous plaques responsible for unstable angina, AMI, and sudden ischemic death. (medscape.com)
  • Coronary angiographic findings Lesions involving the remaining anterior descending artery were the most LCN1 antibody common, but the lesion distribution did not differ between the two organizations ( p =0.629) (Table 2). (gasyblog.com)
  • Cardiologists cannot solely rely on the angiographic appearance of epicardial coronary artery stenosis when evaluating patients with myocardial ischaemia. (rcpe.ac.uk)
  • Transthoracic pDSVR measurements in the distal to mid left anterior descending coronary artery and marginal branches of the left circumflex coronary artery had high accuracy for excluding functionally significant stenoses in the left coronary artery, as well as for identifying angiographic significant stenoses. (thoracickey.com)
  • Angiographic data were assessed at a central angiographic laboratory using standardized morphological criteria and computer-assisted quantitative dimensional analyses. (elsevierpure.com)
  • Quantitative coronary angiographic results 3. (gasyblog.com)
  • Multivariate analysis: Clinical and quantitative coronary angiographic predictors of coronary restenosis Multiple logistic Raltitrexed (Tomudex) regression analysis was performed to identify self-employed predictors of coronary restenosis after PCI. (gasyblog.com)
  • Multivariate analysis: Clinical and quantitative coronary angiographic predictors of coronary restenosis Conversation Like UFH, LMWHs are glycosaminoglycans consisting of chains of alternating residues of D-glucosamine and uronic acid, either glucuronic or iduronic acids. (gasyblog.com)
  • A. Basset-Merle, G. Finet, J. Lienard, I.E. Magnin, 3D reconstruction of the deformable coronary tree skeleton from two X-ray angiographic views, in: Proc. (crossref.org)
  • In nondiabetic patients, a number of factors may be used to stratify the level of risk of coronary disease, including clinical history, resting ventricular function, exercise capacity, the presence and extent of ischemia at single-photon emission-computed tomography (SPECT), or stress echo. (diabetesjournals.org)
  • IVUS-derived negative remodeling is associated with adverse long-term clinical outcome in stable patients with intermediate coronary artery stenosis. (hindawi.com)
  • However, data regarding the long-term clinical outcomes of IVUS-guided deferral of coronary revascularization are limited. (hindawi.com)
  • Other clinical scenarios requiring IVUS examination (restenosis, acute coronary syndrome, left main disease, and chronic total occlusion) were excluded. (hindawi.com)
  • Furthermore, after appropriate stratification for morphology and clinical presentation, overall atherectomy procedural outcome may be similar to that achieved with coronary angioplasty. (elsevierpure.com)
  • A clinical decision support system for predicting coronary artery stenosis in patients with suspected coronary heart disease. (cdc.gov)
  • In studies of patients with diabetes and coronary artery disease, we have examined changes in endothelial function, and nitric oxide and tetrahydrobiopterin levels, and how these relate to the clinical features of disease. (ox.ac.uk)
  • Differentiating between type 1 and type 2 myocardial infarction is a common clinical conundrum that can be difficult to resolve, particularly as both can occur in the presence or absence of obstructive coronary artery disease," the group noted. (scanforlife.co.za)
  • Incorporating group information from TDA demonstrated increase of model fitness for predicting acute coronary syndrome or revascularization compared with that incorporating clinical risk factors, percentage diameter stenosis, and high-risk plaque features. (houstonmethodist.org)
  • Conclusions: The TDA of quantitative whole-heart coronary plaque characteristics on coronary CTA identified distinct patient groups with different plaque dynamics and clinical outcomes. (houstonmethodist.org)
  • Assessment of coronary stenosis severity is crucial in clinical practice. (ox.ac.uk)
  • The proposed method has the potential to allow immediate analysis of the stenoses in clinical practice, thereby providing incremental diagnostic and prognostic information to guide treatments in real time and without the need for invasive techniques. (ox.ac.uk)
  • Procedural success was achieved in 87.8% of stenoses, and major ischemic complications (death, myocardial infarction, and emergency bypass surgery) occurred in 6.3% of patients. (elsevierpure.com)
  • CT-defined high-risk low-attenuation plaque can be used to risk stratify patients with coronary artery disease and is one of the strongest predictors of future myocardial infarction," they explained. (scanforlife.co.za)
  • Quantitative CTCA helped identify important differences between the plaque characteristics of patients with type 1 and type 2 myocardial infarction," they concluded. (scanforlife.co.za)
  • New guidelines on screening for cardiovascular risk, released in late 2013 by the American Heart Association/American College of Cardiology (AHA/ACC), recommend use of a revised calculator for estimating the 10-year risk of developing a first atherosclerotic CVD event, which is defined as nonfatal myocardial infarction, death from coronary heart disease, or stroke (fatal or nonfatal) in a person who was initially free from atherosclerotic CVD. (medscape.com)
  • Of these patients, more than 25% will experience a more severe type of heart attack, an ST-elevated myocardial infarction, or STEMI caused by the sudden, total blockage of a coronary artery. (sepoy.net)
  • The trial enrolled patients with stable or unstable angina or a myocardial infarction (MI) at least 72 hours before screening if they had at least one coronary lesion with a diameter stenosis of 50%-90% and a reference vessel diameter of at least 2.5 mm. (medscape.com)
  • Acute Myocardial Infarction (MI) Acute myocardial infarction is myocardial necrosis resulting from acute obstruction of a coronary artery. (msdmanuals.com)
  • Data Conclusion This study could demonstrate the feasibility of PCASL to identify splenic switch-off during adenosine perfusion MRI, both by qualitative and quantitative assessments. (unav.edu)
  • Development and evaluation of a radiomics model of resting N-ammonia positron emission tomography myocardial perfusion imaging to predict coronary artery stenosis in patients with suspected coronary heart disease. (cdc.gov)
  • The capacity of noninvasive PET for quantitative myocardial perfusion using cfrQuant parallels the use of invasive, pressure-based fractional flow reserve (FFR) for assessing physiologic stenosis severity as a guide to management and revascularization procedures," said Gould. (itnonline.com)
  • Coronary flow velocity reserve (CFVR) assessed using Doppler transthoracic echocardiography (TTE) has recently been shown to be a noninvasive surrogate of fractional flow reserve, especially in the detection of a functionally nonsignificant lesion. (thoracickey.com)
  • Recent reports have indicated that findings of reduced DSVR measured by TTE in the distal left anterior descending coronary artery (LAD) may be a simple, noninvasive method for the detection of high-grade coronary stenoses located more proximally in the LAD. (thoracickey.com)
  • This retrospective study included patients who underwent IVUS-guided coronary intervention at a single tertiary center in Korea. (jmir.org)
  • METHODS: Twenty-three patients (mean age, 60.6 ± 8.1 years) with CCS and single-vessel coronary stenosis underwent cardiac catheterization. (bvsalud.org)
  • Methods: Patients who underwent 2 coronary CTAs at a minimum of 24 months' interval were analyzed (n = 1,264). (houstonmethodist.org)
  • The mere measurement of lipids and markers of inflammation (CRP, IL-6, et cetera) through serum testing, correlate poorly with the extent and severity of coronary artery disease (CAD), and measurement of their change only moderately correlate with changes in CAD [6]. (bmj.com)
  • Myocardial FFR has been used as an index of functional severity of coronary artery stenosis. (medscape.com)
  • Several studies have shown that in the presence of a significant coronary stenosis, the ratio between the diastolic and systolic coronary blood flow velocities, diastolic-to-systolic velocity ratio (DSVR), is significantly reduced when invasively measured distally to the stenosis. (thoracickey.com)
  • These results indicate an association between supplementary vitamin E intake and angiographically demonstrated reduction in coronary artery lesion progression. (nih.gov)
  • The emerging field of coronary physiology allows operators to perform quantitative measurements of lesion severity and are evidence based to guide the need for coronary intervention. (rcpe.ac.uk)
  • This multicenter, nested case-control study was a substudy of ICONIC (Incident Coronary Syndromes Identified by Computed Tomography) and included patients who had ACS with a culprit lesion precursor seen on CCTA. (medpagetoday.com)
  • 001). The correlation was weaker for percent area stenosis and lesion length, although statistically significant (correlation coefficients of 0.29 and 0.33, respectively). (jmir.org)
  • CT-QCA correlates well with CA-QCA in terms of coronary reference diameter analysis, but not stenosis quantification. (escardio.org)
  • We studied 47 patients to investigate the accuracy of coronary plaque volume measurement acquired with 64-slice multi-slice computed tomography (MSCT), using newly developed quantification software, when compared with quantitative intracoronary ultrasound (QCU). (escardio.org)
  • Quantification of coronary plaque within selected proximal or middle coronary segments without image blurring and heavy calcification with 64-slice CT was moderately accurate with respect to intravascular ultrasound and demonstrated good reproducibility. (escardio.org)
  • Further improvement in CT resolution is required for more reliable measurement of coronary plaques using quantification software. (escardio.org)
  • August 21, 2012 - The U.S. Food and Drug Administration (FDA) granted marketing approval for cfrQuant, coronary flow reserve (CFR) quantification software from the University of Texas Health Science Center at Houston (UTHealth). (itnonline.com)
  • M. Hernandez-Hoyos, M. Orkisz, J.-P. Roux, P.C. Douek, Inertia-Based Vessel Axis Extraction and Stenosis Quantification in 3D MRA images, in: Proc. (crossref.org)
  • The presence of CRP, complement, and oxLDL in a high proportion of plaque tissue from patients with unstable coronary artery disease implies that these surrogate markers have important proinflammatory effects inside atherosclerotic plaques. (bmj.com)
  • To explore the association of supplementary and dietary vitamin E and C intake with the progression of coronary artery disease. (nih.gov)
  • It is also widely known that cholesterol values are a biomarker and risk indicator for coronary and vascular disease, and that C-reactive protein (CRP) is a marker for inflammation. (wikipedia.org)
  • Approximately 50% of mortality in diabetic patients is related to coronary disease ( 1 ), and diabetes has a significant impact on outcome in patients with established coronary disease ( 2 ). (diabetesjournals.org)
  • A further strategy would be to screen patients for existing evidence of coronary disease, with the intent of myocardial revascularization in those at greatest risk. (diabetesjournals.org)
  • However, resting ST segment changes may be false positive responses for epicardial coronary disease ( 5 ), and false positive ST segment changes and poor exercise capacity may reduce the utility of standard exercise electrocardiogram testing. (diabetesjournals.org)
  • Research has confirmed Dr Dean Ornish's lifestyle and meditation based program can reverse coronary heart disease cheaply and reliably when compared to ordinary medical care. (gawlerblog.com)
  • For more than 35 years, Dr. Ornish has championed lifestyle modification as a proven approach for reversing heart disease in patients with pre-existing coronary artery disease. (gawlerblog.com)
  • Consecutive patients with stable coronary heart disease who received IVUS examination between January 2011 and January 2014 were retrospectively screened. (hindawi.com)
  • Cardiac markers are used for the diagnosis and risk stratification of patients with chest pain and suspected acute coronary syndrome (ACS) and for management and prognosis in patients with acute heart failure, pulmonary embolism, and other disease states. (medscape.com)
  • A 62-year-old female presented with atypical chest pain and a history of major risk factors for coronary artery disease (CAD), including obesity (high body mass index, height of 168 cm [5'5"], and a weight of 103 kg [227 lb]), hypertension, diabetes, hyperlipidemia, and a family history of CAD. (siemens-healthineers.com)
  • Pre-test probability for coronary artery disease in patients with chest pain based on machine learning techniques. (cdc.gov)
  • Machine learning-enhanced echocardiography for screening coronary artery disease. (cdc.gov)
  • Study on the risk of coronary heart disease in middle-aged and young people based on machine learning methods: a retrospective cohort study. (cdc.gov)
  • Deep learning to detect significant coronary artery disease from plain chest radiographs AI4CAD. (cdc.gov)
  • Deep learning artificial intelligence framework for multiclass coronary artery disease prediction using combination of conventional risk factors, carotid ultrasound, and intraplaque neovascularization. (cdc.gov)
  • In patients with coronary heart disease (CHD) or at high risk of CHD, ZOCOR® can be started simultaneously with diet. (globalrph.com)
  • We believe cfrQuant will revolutionize the methodology of diagnosis and subsequent treatment of coronary disease, resulting in improved patient outcomes and cost savings within our heathcare system. (itnonline.com)
  • Sophisticated cardiac PET uniquely quantifies diffuse coronary artery disease (CAD) and/or the combination of diffuse and segmental disease that is not routinely feasible with other technologies. (itnonline.com)
  • 5) Behavior Questionnaire elicited data on behavior which may be associated with coronary heart disease for examined persons ages 25-74. (cdc.gov)
  • Reduce the need for coronary and non-coronary revascularization procedures. (globalrph.com)
  • Directional coronary atherectomy has recently become available to treat coronary stenoses. (elsevierpure.com)
  • This study was performed to determine the relation of patient characteristics and stenosis morphology to procedural outcome with directional coronary atherectomy to gain insight into which patients might be best treated with this device. (elsevierpure.com)
  • The procedural outcome of directional coronary atherectomy is highly associated with coronary stenosis morphology. (elsevierpure.com)
  • The aim of this study was to determine whether poststenotic diastolic-to-systolic velocity ratio (DSVR) assessed by transthoracic Doppler echocardiography could accurately identify significant stenoses in the left coronary artery. (thoracickey.com)
  • Background: Antithrombotic therapy with heparin reduces the pace of ischemic events in individuals with acute coronary syndrome. (gasyblog.com)
  • As the myocardium becomes ischemic, coronary sinus blood pH falls, cellular potassium is lost, lactate accumulates, ECG abnormalities appear, and ventricular function (both systolic and diastolic) deteriorates. (msdmanuals.com)
  • Multislice computed tomography (CT) can noninvasively identify the presence of coronary plaques even in the absence of significant coronary artery stenosis. (escardio.org)
  • Intravascular ultrasound (IVUS) offers detailed 3D tomographic views of coronary plaques and reference vessels. (jmir.org)
  • Background: Coronary CTA can noninvasively assess coronary plaques quantitatively. (houstonmethodist.org)
  • Methods Using an electronic patient database, we analysed 100,253 consecutive coronary angiograms over almost 19 years. (rcpe.ac.uk)
  • A recent near life-threatening respiratory arrest during intravenous adenosine administration for FFR at our centre prompted a systematic review of over 100,000 invasive coronary angiograms performed over almost two decades. (rcpe.ac.uk)
  • Using an electronic patient database, we analysed 100,253 consecutive coronary angiograms performed at the Glasgow Royal Infirmary, Western Infirmary Glasgow, Stobhill Hospital and the Golden Jubilee National Hospital over almost 19 years between January 2000 and November 2018. (rcpe.ac.uk)
  • In 25 patients assigned to the TCM TDI group, multidetector computed tomograms were correlated with invasive quantitative coronary angiograms to ensure maintenance of diagnostic accuracy. (elsevierpure.com)
  • Pressure-sensitive guidewires may be inserted through a coronary stenosis and ratio of distal coronary pressure (Pd) divided by the aortic pressure (Pa) calculated during hyperaemia. (rcpe.ac.uk)
  • The success rates of peak DSVR (pDSVR) measurements in the distal to mid left anterior descending coronary artery and marginal branches of the left circumflex coronary artery were 85% and 32%, respectively. (thoracickey.com)
  • METHODS AND RESULTS: We derive a quantitative, structured tool to determine the relative importance of each endpoint to patients. (bvsalud.org)
  • Results: Three distinct patient groups were identified by TDA, and the patient similarity network by TDA showed a closed loop, demonstrating a continuous trend of coronary plaque progression. (houstonmethodist.org)
  • Thus, a more precise evaluation of coronary plaque might be obtained. (escardio.org)
  • Comprehensive evaluation of patients with symptoms after coronary revascularization. (stanford.edu)
  • Modern high-end echocardiographic equipment permits excellent imaging of coronary artery blood flow, allowing measurements of coronary blood flow profiles. (thoracickey.com)
  • Continuous trans-stenotic coronary pressure-flow measurements were performed during: i) IV adenosine hyperemia, and ii) physical exercise using a catheter-table-mounted supine ergometer. (bvsalud.org)
  • Follow-up coronary angiogram at 6 months after PCI indicated the minimal luminal diameter of group I had been higher than that of group II (1.810.49 vs. 1.640.44, p =0.035) (Table 3) and the diameter stenosis of group I had been lower than that of group II (32.214.5% vs. 37.418.8%, p =0.041) (Table 3). (gasyblog.com)
  • We aim to recruit 75 VCI patients, 60 HFpEF patients, 60 patients with severe aortic stenosis (AS) undergoing surgical aortic valve replacement as a pressure overload HFpEF model, and 200 elderly participants with mixed comorbidities to serve as controls. (unav.edu)
  • Hypertrophic Cardiomyopathy Hypertrophic cardiomyopathy is a congenital or acquired disorder characterized by marked ventricular hypertrophy with diastolic dysfunction (eg, due to valvular aortic stenosis, coarctation. (msdmanuals.com)