Comparison of different quantitative coronary analysis systems: ARTREK, CAAS, and CMS

Hausleiter, Jörg; Nolte, Carsten; Jost, Stefan; Wiese, Birgitt; Stürm, Matthias; Lichtlen, Paul R.

doi:10.1002/(sici)1097-0304(199601)37:1<14::aid-ccd5>3.0.co;2-7

Cited by 60 publications

(18 citation statements)

References 26 publications

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“…All coronary stenoses were measured quantitatively using the CMS system 10. In the presence of > 50% residual diameter stenosis of the infarct related artery, elective percutaneous transluminal coronary angioplasty (PTCA) was performed by an experienced cardiologist unaware of the results of dobutamine stress echocardiography.…”

Section: Methodsmentioning

confidence: 99%

Full recovery of contraction late after acute myocardial infarction: determinants and early predictors

Lancellotti

Albert

Berthe

et al. 2001

Heart

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Objectives-To assess the relative value of electrocardiographic, echocardiographic, angiographic, and in-hospital therapeutic indices for predicting late functional recovery after acute myocardial infarction, and to determine the variables associated with absence of recovery, partial recovery, and full recovery. Design-Prospective observational follow up study. Setting-Teaching hospital. Patients-74 consecutive patients with a first uncomplicated acute myocardial infarct. Interventions-Dobutamine-atropine stress echocardiography was performed mean (SD) 5 (2) days after the acute event. Quantitative angiography was available in all patients before hospital discharge. A follow up resting echocardiogram was obtained 12 (2) months later. Results-Functional recovery (partial, n = 18; full, n = 27) was observed in 45 of the 74 patients. Recovery was associated with earlier thrombolytic treatment (p = 0.008), earlier peak concentration of creatine kinase (p = 0.009), greater contractile reserve (p = 0.0001), non-Q wave acute myocardial infarction (p = 0.002), and more frequent elective angioplasty of the infarct related vessel (p = 0.0004). Three independent variables were selected stepwise from multivariate analysis for predicting late recovery: contractile reserve ( 2 = 24.2, p < 0.0001); non-Q wave infarction ( 2 = 15.7, p = 0.0001); and the time from symptom onset to thrombolysis ( 2 = 4.94, p = 0.026). Three independent variables predicted full recovery: contractile reserve ( 2 = 17.2, p = 0.0001); non-Q wave infarction ( 2 = 10.1, p = 0.0016); and elective angioplasty of the infarct related artery ( 2 = 4.53, p = 0.033). Only contractile reserve ( 2 = 17.0, p < 0.001) was selected from the multivariate analysis for its ability to distinguish between partial recovery and absence of recovery. Conclusions-Late recovery of contraction relates to earlier treatment, which is associated with lower infarct size unmasked by a non-Q wave event and the presence of contractile reserve. Elective coronary angioplasty of the infarct related artery before hospital discharge is associated with full recovery. (Heart 2001;85:521-526)

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Section: Methodsmentioning

confidence: 99%

Full recovery of contraction late after acute myocardial infarction: determinants and early predictors

Lancellotti

Albert

Berthe

et al. 2001

Heart

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“…The selected end-diastolic frames were magnified, digitized, and analyzed off-line with the QCA imaging system (CMS, MEDIS, Leiden, The Netherlands). Automatic contour detection was performed with the geometric edge-differentiation technique according to a previously validated method (9). MRA.…”

Section: Patient Populationmentioning

confidence: 99%

Magnetic resonance angiography isequivalent to X-Ray coronary angiography for the evaluation of coronary arteries in kawasaki disease

Mavrogeni

Papadopoulos

Douskou

et al. 2004

Journal of the American College of Cardiology

141

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“…The percentage diameter stenosis was analysed quantitatively using CMS analysis software (Medical Imaging System). 16 Coronary stenosis was considered if there was > 70% diameter stenosis on quantitative coronary angiography.…”

Section: Coronary Angiographymentioning

confidence: 99%

Changes in transmural distribution of myocardial perfusion assessed by quantitative intravenous myocardial contrast echocardiography in humans

Fukuda

Muro²,

Hozumi³

et al. 2002

Heart

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Objective: To clarify whether changes in transmural distribution of myocardial perfusion under significant coronary artery stenosis can be assessed by quantitative intravenous myocardial contrast echocardiography (MCE) in humans. Methods: 31 patients underwent dipyridamole stress MCE and quantitative coronary angiography. Intravenous MCE was performed by continuous infusion of Levovist. Images were obtained from the apical four chamber view with alternating pulsing intervals both at rest and after dipyridamole infusion. Images were analysed offline by placing regions of interest over both endocardial and epicardial sides of the mid-septum. The background subtracted intensity versus pulsing interval plots were fitted to an exponential function, y = A (1 − e −βt ), where A is plateau level and β is rate of rise. Results: Of the 31 patients, 16 had significant stenosis (> 70%) in the left anterior descending artery (group A) and 15 did not (group B). At rest, there were no differences in the A endocardial to epicardial ratio (A-EER) and β-EER between the two groups (mean (SD) 1.2 (0.6) v 1.2 (0.8) and 1.2 (0.7) v 1.1 (0.6), respectively, NS). During hyperaemia, β-EER in group A was significantly lower than that in group B (1.0 (0.5) v 1.4 (0.5), p < 0.05) and A-EER did not differ between the two groups (1.0 (0.5) v 1.2 (0.4), NS). Conclusions: Changes in transmural distribution of myocardial perfusion under significant coronary artery stenosis can be assessed by quantitative intravenous MCE in humans.I n the presence of major coronary artery stenosis, reduction in coronary blood flow causes a shift in transmural myocardial blood flow (MBF) distribution towards the epicardium, producing myocardial ischaemia predominantly in the endocardium.1 2 Thus, the ability to image transmural distribution of MBF may provide a non-invasive estimation of the severity of coronary artery stenosis.Quantitative intravenous myocardial contrast echocardiography (MCE) is a new way to assess myocardial perfusion non-invasively.3-8 MCE allows us to assess regional MBF because of a high axial resolution in comparison with conventional methods for assessment of myocardial perfusion (single photon and positron emission tomography). In previous experimental studies, changes in transmural distribution during myocardial ischaemia were well visualised by intravenous MCE.9-11 However, MCE has not been well documented in the clinical setting.Recent studies have shown that quantitative assessment of myocardial opacification obtained by intravenous MCE yields a parameter representing MBF velocity, which diminishes incrementally in the presence of more severe coronary artery stenosis.12-15 Therefore, the purpose of this study was to clarify whether changes in transmural distribution of myocardial perfusion caused by pronounced coronary artery stenosis can be assessed by quantitative intravenous MCE in humans. METHODS Patient populationWe selected 31 patients (25 men, six women, mean (SD) age 62 (10) years) with suspected or known coronary artery dise...

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Comparison of different quantitative coronary analysis systems: ARTREK, CAAS, and CMS

Cited by 60 publications

References 26 publications

Full recovery of contraction late after acute myocardial infarction: determinants and early predictors

Full recovery of contraction late after acute myocardial infarction: determinants and early predictors

Magnetic resonance angiography isequivalent to X-Ray coronary angiography for the evaluation of coronary arteries in kawasaki disease

Changes in transmural distribution of myocardial perfusion assessed by quantitative intravenous myocardial contrast echocardiography in humans

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