Search results for "Calcium score"

showing 10 items of 15 documents

A semi-automatic approach for epicardial adipose tissue segmentation and quantification on cardiac CT scans

2019

Abstract Many studies have shown that epicardial fat is associated with a higher risk of heart diseases. Accurate epicardial adipose tissue quantification is still an open research issue. Considering that manual approaches are generally user-dependent and time-consuming, computer-assisted tools can considerably improve the result repeatability as well as reduce the time required for performing an accurate segmentation. Unfortunately, fully automatic strategies might not always identify the Region of Interest (ROI) correctly. Moreover, they could require user interaction for handling unexpected events. This paper proposes a semi-automatic method for Epicardial Fat Volume (EFV) segmentation a…

AdultMale0301 basic medicineComputer scienceAdipose tissueHealth InformaticsCalcium score scans; Cardiac adipose tissue quantification; Coronary computed tomography angiography scans; Epicardial fat volume; Fat density quartiles; Semi-automatic segmentationFat density quartilesCorrelation03 medical and health sciencesComputer-AssistedDeep Learning0302 clinical medicineFat density quartileRegion of interestImage Interpretation Computer-AssistedCalcium score scansHumansSegmentationCalcium score scans; Cardiac adipose tissue quantification; Coronary computed tomography angiography scans; Epicardial fat volume; Fat density quartiles; Semi-automatic segmentation; Adipose Tissue; Adult; Algorithms; Deep Learning; Female; Humans; Image Interpretation Computer-Assisted; Male; Middle Aged; Pericardium; Tomography X-Ray ComputedImage InterpretationTomographyEpicardial fat volumeSemi-automatic segmentationbusiness.industryCalcium score scanPattern recognitionRepeatabilityMiddle AgedCoronary computed tomography angiography scansCoronary computed tomography angiography scanX-Ray ComputedComputer Science Applications030104 developmental biologyAdipose TissueCardiac adipose tissue quantificationQuartileEpicardial adipose tissueFemaleSemi automaticArtificial intelligenceTomography X-Ray ComputedSettore MED/36 - Diagnostica Per Immagini E RadioterapiabusinessPericardiumAlgorithms030217 neurology & neurosurgeryComputers in Biology and Medicine
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Coronary calcium score and computed tomography coronary angiography in high-risk asymptomatic subjects: assessment of diagnostic accuracy and prevale…

2010

The aim of the study was to compare the coronary artery calcium score (CACS) and computed tomography coronary angiography (CTCA) for the assessment of non-obstructive/obstructive coronary artery disease (CAD) in high-risk asymptomatic subjects. Two hundred and thirteen consecutive asymptomatic subjects (113 male; mean age 53.6 +/- 12.4 years) with more than one risk factor and an inconclusive or unfeasible non-invasive stress test result underwent CACS and CTCA in an outpatient setting. All patients underwent conventional coronary angiography (CAG). Data from CACS (threshold for positive image: Agatston score 1/100/1,000) and CTCA were compared with CAG regarding the degree of CAD (non-obst…

AdultMalemedicine.medical_specialtyLumen (anatomy)Coronary Artery DiseaseCoronary AngiographyAsymptomaticRisk AssessmentCoronary artery diseaseYoung AdultRisk FactorsInternal medicinePositive predicative valuemedicinePrevalenceHumansRadiology Nuclear Medicine and imagingcardiovascular diseasesRisk factorNeuroradiologyAgedbusiness.industrynutritional and metabolic diseasesCalcinosiscalcium scoreGeneral MedicineMiddle Agedmedicine.diseaseCoronary Calcium ScoreItalycardiovascular systemCardiologyFemaleRadiologymedicine.symptomSettore MED/36 - Diagnostica Per Immagini E RadioterapiaAgatston scorebusinessTomography X-Ray Computednon-obstructive coronary artery diseaseEuropean Radiology
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Long-term prognosis of patients with a zero calcium score assessed by Multislice Computed Tomography Coronary Angiography.

2011

Purpose Methods and Materials Results Conclusion References Personal Information

ArteriosclerosisPrognosicalcium scoreSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCardiacCT-AngiographyOutcomes analysisMultislice Computed Tomography Coronary Angiography.
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Confronto tra acquisizioni di Calcium Score e CardioTC per la quantificazione del volume e della densità del grasso epicardico

2014

Calcium Score CardioTC grasso epicardicoSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Polyvascular subclinical atherosclerosis in familial hypercholesterolemia: The role of cholesterol burden and gender

2019

International audience; BACKGROUND AND AIM:Heterozygous familial hypercholesterolemia (HeFH) is a genetic disease characterized by a heterogeneous phenotype. The assessment of cardiovascular (CV) risk is challenging for HeFH. Cholesterol burden (CB) allows to estimate the lifelong exposure to high levels of cholesterol. The aim of this study was to analyze the distribution of subclinical atherosclerosis and the relationship between atherosclerosis and the CB in a sample of HeFH patients, focusing on sex-related differences.METHODS AND RESULTS:154 asymptomatic HeFH subjects underwent coronary-artery-calcium score (CACs) and Doppler ultrasound of carotid and femoral arteries. Yearly lipid pro…

Carotid Artery DiseasesMaleCarotid atherosclerosisPeripheral arterial atherosclerosisTime Factors[SDV]Life Sciences [q-bio]Endocrinology Diabetes and MetabolismMedicine (miscellaneous)Coronary Artery DiseaseDiseaseFamilial hypercholesterolemia030204 cardiovascular system & hematologySeverity of Illness Indexchemistry.chemical_compound0302 clinical medicineRisk FactorsAtherosclerosis; Calcium score; Cardiovascular disease; Cardiovascular risk; Cholesterol burden; Coronary artery calcium; Familial hypercholesterolemia; Peripheral arterial atherosclerosis; Adult; Aged; Asymptomatic Diseases; Biomarkers; Carotid Artery Diseases; Cholesterol; Coronary Artery Disease; Cross-Sectional Studies; Female; Femoral Artery; Genetic Predisposition to Disease; Humans; Hyperlipoproteinemia Type II; Male; Middle Aged; Paris; Peripheral Arterial Disease; Phenotype; Prevalence; Prognosis; Risk Assessment; Risk Factors; Severity of Illness Index; Sex Factors; Time Factors; Young AdultPrevalenceMedicineNutrition and Dietetics[SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismMiddle AgedPrognosisCardiovascular diseaseCalcium score3. Good healthFemoral ArteryCholesterol burdenCholesterolPhenotypeAtherosclerosiCardiologyPopulation studyFemalemedicine.symptomCardiology and Cardiovascular MedicineAdultParismedicine.medical_specialtyFamilial hypercholesterolemia030209 endocrinology & metabolismRisk AssessmentAsymptomaticCoronary artery calciumHigh cholesterolHyperlipoproteinemia Type IIPeripheral Arterial DiseaseYoung Adult03 medical and health sciencesSex Factors[SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular systemInternal medicineHumansGenetic Predisposition to DiseaseAgedbusiness.industryCholesterolAtherosclerosismedicine.diseaseCardiovascular riskCross-Sectional StudieschemistrySubclinical atherosclerosisAsymptomatic DiseasesbusinessBiomarkers
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Assessment of volume and density of epicardial fat: comparison between CT calcium score and CT coronary angiography scans.

2015

Aims and objectives Methods and materials Results Conclusion Personal information References

Computer Applications-Generalgenetic structuresArteriosclerosisSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCardiacCT-Angiographyepicardial fat CT calcium score CT coronary angiography
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Diagnóstico etilógico de la disfunción ventricular izquierda con tomografia computerizada: comparación con coronariografía y cardiorresonancia

2012

[EN] Introduction and objectives To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and magnetic resonance. Methods Forty consecutive patients with left ventricular dysfunction of uncertain etiology underwent invasive coronary angiography and contrast magnetic resonance. All patients were evaluated with multidetector computed tomography including coronary calcium presence and score, noninvasive coronary angiography, and myocardial tissue assessment. Results The sensitivity and specificity of the presence of coronary calcium to identify left ventricular dysfunction…

Coronary angiographyMaleScoring systemCardiac magnetic resonanceCoronary angiographyESTADISTICA E INVESTIGACION OPERATIVACoronariografíaComputed tomographyReviewCoronary Artery DiseaseCoronary AngiographyDiagnostic accuracyVentricular Dysfunction LeftProspective StudiesAged 80 and overmedicine.diagnostic_testAngiocardiographyCalcinosisGeneral MedicineMiddle AgedMagnetic Resonance ImagingInvasive coronary angiographySensitivity and specificityCardiologycardiovascular systemTomografía computarizada con multidetectoresFemaleRadiologyHumanAdultmedicine.medical_specialtyContrast enhancementClinical articleSensitivity and SpecificityHeart left ventricle failureSingle testMultidetector computed tomographyNecrosisInternal medicineMultidetector computed tomographyMultidetector Computed TomographymedicineHumansClinical evaluationcardiovascular diseasesAgedCardiac patientbusiness.industryIntermethod comparisonMagnetic resonance imagingResonancia magnética cardiacaEtiologyCalciumCardiovascular magnetic resonanceAgatston calcium scoreCardiac magnetic resonancebusinessControlled study
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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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Coronary artery calcium score on low-dose computed tomography for lung cancer screening

2013

Aim: To evaluate the feasibility of coronary artery calcium score (CACS) on low-dose non-gated chest CT (ngCCT). Methods: Sixty consecutive individuals (30 males; 73 ± 7 years) scheduled for risk stratification by means of unenhanced ECG-triggered cardiac computed tomography (gCCT) underwent additional unenhanced ngCCT. All CT scans were performed on a 64-slice CT scanner (Somatom Sensation 64 Cardiac, Siemens, Germany). CACS was calculated using conventional methods/scores (Volume, Mass, Agatston) as previously described in literature. The CACS value obtained were compared. The Mayo Clinic classification was used to stratify cardiovascular risk based on Agatston CACS. Differences and corre…

High-resolution computed tomographymedicine.medical_specialtyCoronary artery calcium scoreunenhanced chest computed tomographymedicine.diagnostic_testbusiness.industryCoronary artery calcium scorecardiovascular risk stratificationLow dosenutritional and metabolic diseasesComputed tomographyLower riskEffective dose (radiation)SurgeryLung cancer screeningcardiovascular systemmedicineProspective Studycardiovascular diseasesSettore MED/36 - Diagnostica Per Immagini E RadioterapiaAgatston scoreNuclear medicinebusinessHigh-resolution computed tomographyLung cancer screeningWorld Journal of Radiology
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Influence of image reconstruction parameters on cardiovascular risk reclassification by Computed Tomography Coronary Artery Calcium Score

2018

Objective: To investigate the influence of different CT reconstruction parameters on coronary artery calcium scoring (CACS) values and reclassification of predicted cardiovascular (CV) risk. Methods: CACS was evaluated in 113 patients undergoing ECG-gated 64-slice CT. Reference CACS protocol included standard kernel filter (B35f) with slice thickness/increment of 3/1.5 mm, and field-of-view (FOV) of 150–180 mm. Influence of different image reconstruction algorithms (reconstructed slice thickness/increment 2.0/1.0–1.5/0.8–3.0/2.0–3.0/3.0 mm; slice kernel B30f-B45f; FOV 200–250 mm) on Agatston score was assessed by Bland-Altman plots and concordance correlation coefficient (CCC) ana…

MaleAccuracy and precisionRadiology Nuclear Medicine and ImagingCardiac computed tomographyComputed Tomography AngiographyComputed tomographyIterative reconstructionCoronary Artery Disease030204 cardiovascular system & hematologyRisk Assessment030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineImage reconstruction algorithmRisk FactorsImage Processing Computer-AssistedMedicineHumansReconstruction parameterProspective StudiesVascular CalcificationAgedReconstruction parametersmedicine.diagnostic_testCoronary artery calcium scorebusiness.industryCoronary artery calcium scoreCardiovascular risk classificationGeneral MedicineMiddle AgedCardiovascular riskConcordance correlation coefficientCardiovascular DiseasesCardiac computed tomography; Cardiovascular risk; Cardiovascular risk classification; Coronary artery calcium score; Reconstruction parametersFemalebusinessAgatston scoreNuclear medicineSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCoronary Artery Calcium ScoringAlgorithms
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