Search results for " Coronary angiography"

showing 10 items of 79 documents

Prognostic value of Morise clinical score, calcium score and computed tomography coronary angiography in patients with suspected or known coronary ar…

2011

Our aim was to determine the prognostic value of computed tomography coronary angiography (CTCA), coronary artery calcium scoring (CACS) and Morise clinical score in patients with known or suspected coronary artery disease (CAD). A total of 722 patients (480 men; 62.7 +/- 10.9 years) who were referred for further cardiac evaluation underwent CACS and contrast-enhanced CTCA to evaluate the presence and severity of CAD. Of these, 511 (71%) patients were without previous history of CAD. Patients were stratified according to the Morise clinical score (low, intermediate, high), to CACS (0-10, 11-100, 101-400, 401-1,000, > 1,000) and to CTCA (absence of CAD, nonsignificant CAD, obstructive CAD…

Coronary angiographyMalemedicine.medical_specialtyCoronary Artery DiseaseCoronary AngiographyMorise scoreRisk AssessmentSensitivity and SpecificitySeverity of Illness IndexComputed tomography coronary angiographyCoronary artery diseaseSDG 3 - Good Health and Well-beingPredictive Value of TestsRisk FactorsInternal medicineSeverity of illnessmedicineHumansRadiology Nuclear Medicine and imagingcardiovascular diseasesSurvival analysisNeuroradiologyAgedRetrospective Studiesmedicine.diagnostic_testbusiness.industryCalcinosisRetrospective cohort studyInterventional radiologyGeneral MedicineMiddle Agedmedicine.diseasePrognosisSurvival AnalysisCalcium scoreComputed tomography coronary angiography Prognostic value Prognosis Calcium score Morise scorePredictive value of testsCardiologyFemaleRadiologySettore MED/36 - Diagnostica Per Immagini E RadioterapiabusinessTomography X-Ray ComputedPrognostic valueCARDIAC CTAlgorithmsFollow-Up Studies
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Heart rate control with oral ivabradine in computed tomography coronary angiography: a randomized comparison of 7.5 mg vs 5 mg regimen.

2013

Background: Heart rate (HR) reduction is essential to achieve optimal image quality and diagnostic accuracy with computed tomography coronary angiography (CTCA). Administration of oral ivabradine seems to be more effective than beta-blockade in reducing HR in patients referred for CTCA. Methods: Two-hundred-fifty-nine consecutive patients referred for CTCA were prospectively enrolled. Patients not receiving beta-blocker at baseline (group 1) and those with beta-blocker therapy (group 2) were enrolled in the study. Each group was randomized into 3 parallel arms with 1:1:1 allocation. Patients who did not receive beta-blocker at baseline: underwent CTCA without beta blocker (n=49), and receiv…

Coronary angiographyMalemedicine.medical_specialtymedicine.drug_classAdministration OralComputed tomographyCoronary Artery DiseaseCoronary AngiographyComputed tomography coronary angiographyCohort StudiesHeart RateInternal medicineHeart ratemedicineHumansIvabradineProspective StudiesHeart rate reductionBeta blockerDose ModificationAgedRetrospective Studiesmedicine.diagnostic_testDose-Response Relationship Drugbusiness.industryBenzazepinesMiddle AgedCoronary heart diseaseRegimenBlood pressureAnesthesiaCardiologyFemaleCardiology and Cardiovascular MedicinebusinessTomography X-Ray ComputedIvabradinemedicine.drug
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Low dose CT of the heart: a quantum leap into a new era of cardiovascular imaging.

2010

In 10 years, computed tomography coronary angiography (CTCA) has shifted from an investigational tool to clinical reality. Even though CT technologies are very advanced and widely available, a large body of evidence supporting the clinical role of CTCA is missing. The reason is that the speed of technological development has outpaced the ability of the scientific community to demonstrate the clinical utility of the technique. In addition, with each new CT generation, there is a further broadening of actual and potential applications. In this review we examine the state of the art on CTCA. In particular, we focus on issues concerning technological development, radiation dose, implementation,…

Coronary angiographymedicine.medical_specialtyCardiologyComputed tomographycardiac CTCoronary DiseaseCoronary AngiographyRadiation DosageCoronary artery diseaseComputed tomography coronary angiographyCoronary artery diseasemedicineTrainingLow dose ctHumansRadiology Nuclear Medicine and imagingMedical physicsNeuroradiologymedicine.diagnostic_testEquipment Safetybusiness.industryRadiation doseRadiation doseGeneral MedicineConventional coronary angiographymedicine.diseaseComputed tomography coronary angiography Conventional coronary angiography Coronary artery disease Radiation dose TrainingClinical realitySafety EquipmentbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaRadiologyTomography X-Ray ComputedLa Radiologia medica
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Anatomical variants and anomalies of the coronary tree studied with MDCT coronary angiography

2010

Le anomalie delle arterie coronariche sono presenti alla nascita nella maggior parte dei casi asintomatiche ma possono manifestarsi con sintomatologia severa quale angina pectoris o addirittura l’arresto cardiaco. L’angiografia coronarica mediante tomografia computerizzata multistrato (TCMS) permette, tramite ricostruzioni multiplanari secondo piani curvilinei e riformattazioni 3D, la visualizzazione dell’albero coronarico e delle sue varianti ed anomalie in maniera non invasiva, fornendo migliore e più accurata alternativa alla angiografia coronarica (AC). Lo scopo di questo pictorial consiste nella descrizione mediante immagini TCMS con ricostruzioni multiplanari e 3D delle principali var…

Coronary angiographymedicine.medical_specialtyFistulaCoronary anomaliesCoronary Vessel AnomaliesFistulaAsymptomaticAnginaImaging Three-DimensionalHumansMedicineRadiology Nuclear Medicine and imagingcardiovascular diseasesNeuroradiologyCoronary variantsmedicine.diagnostic_testbusiness.industryMDCTInterventional radiologyGeneral Medicinemedicine.diseaseMiocardial bridgingRadiographic Image EnhancementCoronary arteriesmedicine.anatomical_structurecardiovascular systemTomographyRadiologymedicine.symptomcoronary angiographyTomography X-Ray ComputedbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaMDCT; coronary angiography; Coronary anomalies; Coronary variants; Miocardial bridging; FistulaMDCT coronary angiography Coronary anomalies Coronary variants Miocardial bridging Fistula
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Lesions of Proximal Coronary Arteries

2009

Coronary artery disease (CAD) remains the leading cause of death in the Western world. Conventional coronary angiography (CCA) is the gold standard method for evaluation of the vascular lumen and provides excellent results in demonstrating stenotic lesions of CAD. However, it is an invasive procedure with a small risk of fatal events. Furthermore, CCA is a lumen-oriented technique that does not permit a direct visualization and evaluation of the coronary artery wall. The characterization of coronary plaques without a significant lumen narrowing is also not feasible with CCA. This information is relevant since the comparison of angiographic studies of coronary arteries performed before and a…

Coronary angiographymedicine.medical_specialtybusiness.industryLumen (anatomy)medicine.diseaseCoronary artery diseaseCoronary arteriesCoronary artery diseaseStenosismedicine.anatomical_structureCT Coronary AngiographyInternal medicinemedicineCardiologycardiovascular diseasesMyocardial infarctionbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaArteryCause of death
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CT coronary angiography at an ultra-low radiation dose (< 0.1 mSv): feasible and viable in times of constraint on healthcare costs

2013

Computed tomography coronary angiography (CTCA) has reached very high standards both in terms of diagnostic performance and radiation dose reduction. This commentary follows a report on CTCA using less than 0.1 mSv in selected patients. This is an extraordinary accomplishment, both for technology and for medicine. The difficult task is now to implement this tool in clinical practice so it can play the best possible role. CTCA can improve diagnostic pathways, can save money for healthcare systems and could even improve pharmacological therapy. All of this may happen, but it will require the combined effort of all the experienced operators in this field, including the referring clinicians. In…

Coronary angiographymedicine.medical_specialtylow radiation dosePharmacological therapyCT coronary angiographyCoronary Artery DiseaseCoronary AngiographyRadiation DosageSensitivity and Specificityhealthcare costsRadiation ProtectionHealth careCardiac CTHumansMedicineLow dose ctRadiology Nuclear Medicine and imagingMedical physicsConstraint (mathematics)Neuroradiologymedicine.diagnostic_testbusiness.industryscreeningRadiation doseReproducibility of ResultsInterventional radiologyHealth Care CostsGeneral MedicineUnited StatesFeasibility StudiesRadiologyTomography X-Ray ComputedbusinessEuropean Radiology
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INFLUENCE OF INTRA-CORONARY ENHANCEMENT ON DIAGNOSTIC ACCURACY WITH 64-SLICE CT CORONARY ANGIOGRAPHY

2008

We assessed the effect of intra-coronary attenuation on diagnostic accuracy using 64-slice computed tomography coronary angiography (CT-CA). We enrolled 170 patients with suspected coronary artery disease who underwent conventional coronary angiography (CA) and 64-slice CT-CA (100 ml of Iomeprol 400 mg I/ml at 4 ml/s). The study population was divided into two groups (85 patients each based on median attenuation of 326 HU) based on mean arterial attenuation; group 1 with low attenuation and group 2 with high attenuation. Diagnostic accuracy for the detection of significant coronary artery stenosis was determined for both groups using CA as reference standard. Overall, 163 significant stenos…

Coronary artery disease . Coronary angiography . Multislice computed tomography . Iodine concentration . Diagnostic accuracySettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Collateral findings

2011

Ct Coronary Angiography. ImagingCt Coronary Angiography. Imaging; RadiologyCollateral findingcardiac CTSettore MED/36 - Diagnostica Per Immagini E RadioterapiaRadiology
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Early and midterm outcomes of bioresorbable vascular scaffolds for ostial coronary lesions: insights from the GHOST-EU registry.

2016

Aims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset, with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term, but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA), left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death, target vessel m…

LCX (29Target lesionMale52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostialp= 0.035)medicine.medical_treatmentMyocardial Infarction304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14Coronary Artery Disease030204 cardiovascular system & hematologyCoronary artery diseasebut their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA)0302 clinical medicineAbsorbable Implants030212 general & internal medicineMyocardial infarctionCircumflexRegistriesTissue Scaffolds32%)Drug-Eluting StentsMiddle AgedThrombosisCoronary VesselsAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA) left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death target vessel myocardial infarction or target lesion revascularisation. The database included a total of 1549 lesions in 1304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14; 16%) LCX (29; 32%) or LAD (47; 52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostial p= 0.618) post-dilation in 43% (versus 58% in the non-ostial group p= 0.008). At quantitative coronary angiography treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37] p= 0.035) but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groups respectively log-rank p= 0.005). The device-oriented composite endpoint occurred respectively in 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025 HR 2.65 [1.41-4.97]).OstiumAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subsetTreatment Outcomein 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025CardiologyFemale549 lesions in 1medicine.symptomCardiology and Cardiovascular MedicineAdultpost-dilation in 43% (versus 58% in the non-ostial groupmedicine.medical_specialtyor LAD (47HR 2.65 [1.41-4.97])but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groupsrespectivelyLesion03 medical and health sciencesPercutaneous Coronary Interventionwith higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long termleft anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular deathInternal medicinemedicineHumanstarget vessel myocardial infarction or target lesion revascularisation. The database included a total of 1Agedp= 0.008). At quantitative coronary angiographybusiness.industryPercutaneous coronary interventionp= 0.618)treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37]log-rank p= 0.005). The device-oriented composite endpoint occurredmedicine.diseaseSurgery16%)businessEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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Outlook and clinical perspectives of MDCT coronary angiography.

2012

MDCT Coronary Angiography
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