0000000000243714

AUTHOR

Alberto Clemente

0000-0002-4285-9468

showing 13 related works from this author

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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Appropriateness criteria for the use of cardiac computed tomography, SIC-SIRM part 2: Acute chest pain evaluation; Stent and coronary artery bypass g…

2022

In the past 20 years, cardiac computed tomography (CCT) has become a pivotal technique for the noninvasive diagnostic workup of coronary and cardiac diseases. Continuous technical and methodological improvements, combined with fast growing scientific evidence, have progressively expanded the clinical role of CCT. Randomized clinical trials documented the value of CCT in increasing the cost-effectiveness of the management of patients with acute chest pain presenting in the emergency department, also during the pandemic. Beyond the evaluation of stents and surgical graft patency, the anatomical and functional coronary imaging have the potential to guide treatment decision-making and planning …

Chest PainHeart DiseasesInterventionalCardiologyGeneral Medicineheart diseaseRadiology Interventionalvalve diseaseX-Ray Computedcoronary computed tomography scancoronary artery bypass graftNeoplasmsHumansStentsstentCoronary Artery BypassCardiology and Cardiovascular MedicineTomography X-Ray ComputedCardiomyopathiesRadiologychest pain; coronary artery bypass graft; coronary computed tomography scan; heart disease; stent; valve disease; Chest Pain; Coronary Artery Bypass; Humans; Radiology Interventional; Stents; Tomography X-Ray Computed; Cardiology; Cardiomyopathies; Heart Diseases; NeoplasmsTomographyvalve disease.
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SIRM–SIC appropriateness criteria for the use of Cardiac Computed Tomography. Part 1: Congenital heart diseases, primary prevention, risk assessment …

2021

AbstractIn the past 20 years, Cardiac Computed Tomography (CCT) has become a pivotal technique for the noninvasive diagnostic work-up of coronary and cardiac diseases. Continuous technical and methodological improvements, combined with fast growing scientific evidence, have progressively expanded the clinical role of CCT. Recent large multicenter randomized clinical trials documented the high prognostic value of CCT and its capability to increase the cost-effectiveness of the management of patients with suspected CAD. In the meantime, CCT, initially perceived as a simple non-invasive technique for studying coronary anatomy, has transformed into a multiparametric “one-stop-shop” approach abl…

genetic structuresCardiac computed tomographyComputed Tomography AngiographyCoronary DiseaseCAD030204 cardiovascular system & hematologyChest painChest pain Congenital heart disease Coronary CT angiography Epicardial adipose tissue Plaque Stenosislaw.inventionChest painCongenital0302 clinical medicineRandomized controlled triallaw030212 general & internal medicineHeart DefectsPlaqueNeuroradiologyStenosismedicine.diagnostic_testCalcinosisHeartInterventional radiologyGeneral MedicineFractional Flow ReserveFractional Flow Reserve MyocardialPrimary PreventionPosition PaperChest pain; Congenital heart disease; Coronary CT angiography; Epicardial adipose tissue; Plaque; Stenosis; Calcinosis; Coronary Disease; Coronary Stenosis; Fractional Flow Reserve Myocardial; Heart; Heart Defects Congenital; Humans; Primary Prevention; Cardiac Imaging Techniques; Computed Tomography Angiography; Preoperative Caremedicine.symptomRisk assessmentHeart Defects Congenitalmedicine.medical_specialty03 medical and health sciencesEpicardial adipose tissuePreoperative CaremedicineMyocardialHumansRadiology Nuclear Medicine and imagingCoronary CT angiographyIntensive care medicineCongenital heart diseasebusiness.industryCoronary Stenosismedicine.diseaseCardiac Imaging TechniquesStenosisbusinessLa radiologia medica
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Collateral non cardiac findings in clinical routine CT coronary angiography: results from a multi-center registry.

2015

Purpose: The aim of the study was to evaluate the prevalence of collateral findings detected in computed tomography coronary angiography (CTCA) in a multi-center registry. Materials and methods: We performed a retrospective review of 4303 patients (2719 males, mean age 60.3 ± 10.2 years) undergoing 64-slice CTCA for suspected or known coronary artery disease (CAD) at various academic institutions between 01/2006 and 09/2010. Collateral findings were recorded and scored as: non-significant (no signs of relevant pathology, not necessary to be reported), significant (clear signs of pathology, mandatory to be reported), or major (remarkable pathology, mandatory to be reported and further invest…

MaleCoronary angiographymedicine.medical_specialtyComputed tomographyCoronary AngiographyCoronary artery diseaseComputed tomography coronary angiographyCollateral findingsCoronary artery diseaseComputed tomography coronary angiography Collateral findings Coronary artery disease Non-cardiac findingsmedicineHumansRadiology Nuclear Medicine and imagingRegistriesRetrospective StudiesNeuroradiologymedicine.diagnostic_testNon-cardiac findingsbusiness.industryUltrasoundInterventional radiologyGeneral MedicineMiddle AgedClinical routinemedicine.diseaseComputed tomography coronary angiography Collateral findings Coronary artery disease Non-cardiac findingsFemaleRadiologyTomography X-Ray ComputedSettore MED/36 - Diagnostica Per Immagini E RadioterapiabusinessFollow-Up Studies
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Myocardial blood flow quantification for evaluation of coronary artery disease by computed tomography

2017

During the last decade coronary computed tomography angiography (CTA) has become the preeminent non-invasive imaging modality to detect coronary artery disease (CAD) with high accuracy. However, CTA has a limited value in assessing the hemodynamic significance of a given stenosis due to a modest specificity and positive predictive value. In recent years, different CT techniques for detecting myocardial ischemia have emerged, such as CT-derived fractional flow reserve (FFR-CT), transluminal attenuation gradient (TAG), and myocardial CT perfusion (CTP) imaging. Myocardial CTP imaging can be performed with a single static scan during first pass of the contrast agent, with monoenergetic or dual…

medicine.medical_specialtyCardiac computed tomographyMyocardial blood flow quantificationPerfusion scanningFractional flow reserveReview Article030204 cardiovascular system & hematology030218 nuclear medicine & medical imagingCoronary artery disease03 medical and health sciencesMyocardial perfusion imaging0302 clinical medicineStress imagingInternal medicinemedicinemedicine.diagnostic_testbusiness.industryMyocardial perfusion imagingmedicine.diseaseRegadenosonDipyridamoleCoronary artery disease (CAD)StenosisCardiologyRadiologyCoronary vasodilatorbusinessCardiology and Cardiovascular MedicineSettore MED/36 - Diagnostica Per Immagini E Radioterapiamedicine.drug
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Intravenous Contrast Material for Cardiac Computed Tomography

2023

Purpose: The Italian Registry of Contrast Material use in Cardiac Computed Tomography (iRCM-CCT) is a multicenter, multivendor, observational study on the use of contrast media (CM) in patients undergoing cardiac computed tomography (CCT). The aim of iRCM-CCT is to assess image quality and safety profile of intravenous CM compounds. Materials and methods: iRCM-CCT enrolled 1842 consecutive patients undergoing CCT (≥50 per site) at 20 cluster sites with the indication of suspected coronary artery disease. Demographic characteristics, CCT, and CM protocols, clinical indications, safety markers, radiation dose reports, qualitative (ie, poor vascular enhancement) and quantitative (ie, HU attenu…

safetyPulmonary and Respiratory MedicineSettore MED/36 - Diagnostica per Immagini e Radioterapiacoronary arteriecomputed tomography angiography; contrast media; coronary arteries; image enhancement; safetyRadiology Nuclear Medicine and imagingcomputed tomography angiography; contrast media; coronary arteries; image enhancement; safety;image enhancementcontrast mediacomputed tomography angiographycoronary arteriesimage enhancement contrast media safetycomputed tomography angiographycoronary arteriesimage enhancementcontrast mediasafetyJournal of Thoracic Imaging
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Supplementary_Material_-_online_only – Supplemental material for Symptomatic COVID-19 in advanced-cancer patients treated with immune-checkpoint inhi…

2020

Supplemental material, Supplementary_Material_-_online_only for Symptomatic COVID-19 in advanced-cancer patients treated with immune-checkpoint inhibitors: prospective analysis from a multicentre observational trial by FICOG by Melissa Bersanelli, Diana Giannarelli, Ugo De Giorgi, Sandro Pignata, Massimo Di Maio, Elena Verzoni, Alberto Clemente, Valentina Guadalupi, Diego Signorelli, Marcello Tiseo, Raffaele Giusti, Marco Filetti, Marilena Di Napoli, Lorenzo Calvetti, Alessandro Cappetta, Paola Ermacora, Diego Zara, Fausto Barbieri, Cinzia Baldessari, Vieri Scotti, Francesca Mazzoni, Antonello Veccia, Pamela Francesca Guglielmini, Marco Maruzzo, Ernesto Rossi, Francesco Grossi, Chiara Casad…

110203 Respiratory DiseasesFOS: Clinical medicine111702 Aged Health CareFOS: Health sciences111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified111299 Oncology and Carcinogenesis not elsewhere classified
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Symptomatic COVID-19 in advanced-cancer patients treated with immune-checkpoint inhibitors. Prospective analysis from a multicentre observational tri…

2020

Background:This prospective, multicentre, observational INVIDIa-2 study is investigating the clinical efficacy of influenza vaccination in advanced-cancer patients receiving immune-checkpoint inhibitors (ICIs), enrolled in 82 Italian centres, from October 2019 to January 2020. The primary endpoint was the incidence of influenza-like illness (ILI) until 30 April 2020. All the ILI episodes, laboratory tests, complications, hospitalizations and pneumonitis were recorded. Therefore, the study prospectively recorded all the COVID-19 ILI events.Patients and methods:Patients were included in this non-prespecified COVID-19 analysis, if alive on 31 January 2020, when the Italian government declared …

0301 basic medicinemedicine.medical_specialtymedicine.medical_treatmentimmune-checkpoint inhibitorsinfluenza-like illnesslcsh:RC254-28203 medical and health sciences0302 clinical medicineCancer immunotherapyInternal medicineMedicineProspective cohort studyCancer stagingOriginal ResearchInfluenza-like illnessbusiness.industrySARS-CoV-2virus diseasesCOVID-19Immunotherapycancer patients; COVID-19; immune-checkpoint inhibitors; influenza-like illness; SARS-CoV-2lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseaseComorbidityVaccination030104 developmental biologyOncology030220 oncology & carcinogenesisObservational studybusinesscancer patients
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Technical development in cardiac CT: current standards and future improvements—a narrative review

2020

Non-invasive depiction of coronary arteries has been a great challenge for imaging specialists since the introduction of computed tomography (CT). Technological development together with improvements in spatial, temporal, and contrast resolution, progressively allowed implementation of the current clinical role of the CT assessment of coronary arteries. Several technological evolutions including hardware and software solutions of CT scanners have been developed to improve spatial and temporal resolution. The main challenges of cardiac computed tomography (CCT) are currently plaque characterization, functional assessment of stenosis and radiation dose reduction. In this review, we will discu…

medicine.medical_specialtyCardiac computed tomographyPrognosiComputed tomography030204 cardiovascular system & hematology030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicinemedicineMedical physicsmedicine.diagnostic_testbusiness.industryContrast resolutionRadiation doseCoronary artery disease (CAD)Coronary arteriesmedicine.anatomical_structureAtherosclerosiCt scannersNarrative reviewTherapyReview Article on Impact of Cardiac CT in Clinical PracticeCardiology and Cardiovascular MedicinebusinessCardiac computed tomography (CCT)DiagnosiCardiovascular Diagnosis and Therapy
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Coronary CT angiography: a guide to examination, interpretation, and clinical indications

2021

Introduction: The introduction of Cardiac Computed Tomography (CCT) has changed the paradigm in the field of diagnostic cardiovascular medicine. CCT is the primary tool in the assessment of suspected Coronary Artery Disease (CAD) and should be followed by functional assessment when needed to stratify disease and to plan potential interventional or surgical therapy. Areas Covered: We provided the current state of the knowledge on the main aspects of technique of examination, image interpretation and clinical indications. We have focused our attention on the basic routine applications and activities. Expert Opinion: The primary role of CCT in suspected CAD will progressively become the standa…

medicine.medical_specialtygenetic structuresCardiac computed tomographyComputed Tomography Angiographycardiac ct030204 cardiovascular system & hematologyCoronary AngiographyCoronary artery disease03 medical and health sciences0302 clinical medicineatherosclerosipreventionInternal MedicinemedicineHumansCAD030212 general & internal medicineExamination interpretationskin and connective tissue diseasesbusiness.industryomt.HeartCoronary ct angiographyGeneral Medicinemedicine.diseaseeye diseasessense organsRadiologyTomography X-Ray ComputedCardiology and Cardiovascular Medicinebusinesscoronary artery disease
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Prognostic value of cardiac CT

2020

In the past decades, coronary computed tomography angiography (CCTA) has become a powerful tool in the management of coronary artery disease. The diagnostic and prognostic value of CCTA has been extensively demonstrated in both large observational studies and clinical trials among stable chest pain patients. The quantification of coronary artery calcium score (CACS) is a well-established predictor of cardiovascular morbidity and mortality in asymptomatic subjects. Besides CACS, the main strength of CCTA is the accurate assessment of the individual total atherosclerotic plaque burden, which holds important prognostic information. In addition, CCTA, by providing detailed information on corona…

medicine.medical_specialtyPrognosiComputed Tomography Angiographymedicine.medical_treatmentPerfusion scanningFractional flow reserveCoronary Artery DiseaseCoronary AngiographyRevascularizationChest painAsymptomatic030218 nuclear medicine & medical imagingCoronary computed tomographyCoronary artery diseaseChest pain03 medical and health sciences0302 clinical medicineInternal medicinemedicineCardiac CTHumansRadiology Nuclear Medicine and imagingCADVascular CalcificationNeuroradiologyFFR-CTRisk assessmentRandomized Controlled Trials as TopicVascular Calcification.Asymptomatic Diseasemedicine.diagnostic_testbusiness.industryCACSInterventional radiologyHeartGeneral MedicinePrognosismedicine.diseaseCardiovascular imaging030220 oncology & carcinogenesisAtherosclerosiAsymptomatic DiseasesCardiologyRisk factormedicine.symptomStratificationbusiness
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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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INfluenza Vaccine Indication during therapy with Immune checkpoint inhibitors: A multicenter prospective observational study (INVIDIa-2)

2021

BackgroundUntil now, no robust data supported the efficacy, safety and recommendation for influenza vaccination in patients with cancer receiving immune checkpoint inhibitors (ICIs).MethodsThe prospective multicenter observational INfluenza Vaccine Indication During therapy with Immune checkpoint inhibitors (INVIDIa-2) study investigated the clinical effectiveness of influenza vaccination in patients with advanced cancer receiving ICIs, enrolled in 82 Italian centers from October 2019 to January 2020. The primary endpoint was the time-adjusted incidence of influenza-like illness (ILI) until April 30, 2020. Secondary endpoints regarded ILI severity and vaccine safety.ResultsThe study enrolle…

MaleCancer ResearchTime Factors2435immunogenicity0302 clinical medicineRisk FactorsNeoplasmsvaccineClinical endpointImmunology and Allergyantibodiesantibodies; immunization; immunogenicity; immunotherapy; neoplasm; vaccination; vaccine1506Prospective Studies030212 general & internal medicineImmune Checkpoint InhibitorsRC254-282Clinical/Translational Cancer ImmunotherapyAged 80 and overIncidenceIncidence (epidemiology)virus diseasesNeoplasms. Tumors. Oncology. Including cancer and carcinogensMiddle AgedVaccinationTreatment OutcomeItalyOncologyInfluenza Vaccines030220 oncology & carcinogenesisMolecular MedicineFemaleimmunotherapyAdultmedicine.medical_specialtyInfluenza vaccineImmunologyVaccine EfficacyimmunizationRisk AssessmentYoung Adult03 medical and health sciencesInternal medicineInfluenza HumanmedicineHumansLung cancerAdverse effectAgedPharmacologybusiness.industryCancermedicine.diseasevaccinationImmunizationbusinessneoplasm
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