Search results for "Cardiac CT"

showing 10 items of 19 documents

Collateral findings

2011

Ct Coronary Angiography. ImagingCt Coronary Angiography. Imaging; RadiologyCollateral findingcardiac CTSettore MED/36 - Diagnostica Per Immagini E RadioterapiaRadiology
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Integrated non-invasive approach to atherosclerosis with cardiac CT and carotid ultrasound in patients with suspected coronary artery disease

2017

The aim of the study was to compare the atherosclerotic disease in the coronary and carotid arteries in patients who underwent non-invasive imaging for suspected stable coronary artery disease (CAD). 107 patients (64 men, age 59 ± 12) with atypical chest pain underwent cardiac CT (CCT) and carotid ultrasound (US) on the same day. Severity (obstructive or not-obstructive disease), location, shape, and composition of atherosclerotic plaques in the two districts were evaluated. Patients presented normal coronary arteries in 36 % (n = 38), not-obstructive CAD in 36 % (n = 39), and obstructive CAD in 28 % (n = 30), while had normal carotid arteries in 53 % (n = 57), not-obstructive disease in 44…

Carotid ultrasoundMalemedicine.medical_specialtyCarotid arteriesCardiac-Gated Imaging TechniquesContrast Media030204 cardiovascular system & hematologyCoronary AngiographySeverity of Illness IndexCoronary artery diseaseDoppler ultrasound030218 nuclear medicine & medical imagingLesionCoronary artery disease03 medical and health sciences0302 clinical medicineInternal medicineImage Interpretation Computer-AssistedmedicineCardiac CTHumansRadiology Nuclear Medicine and imagingIn patientCarotid StenosisNeuroradiologyUltrasonographymedicine.diagnostic_testbusiness.industryUltrasoundInterventional radiologyCarotid arterieGeneral MedicineMiddle Agedmedicine.diseaseAtherosclerosisIopamidolAtherosclerosiCardiologyFemaleRadiologymedicine.symptombusinessTomography X-Ray ComputedSettore MED/36 - Diagnostica Per Immagini E RadioterapiaRadiologia Medica
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Computed tomography coronary angiography in asymptomatic patients

2011

This study assessed the accuracy of computed tomography coronary angiography (CT-CA) for detecting significant coronary artery disease (CAD; a parts per thousand yen50% lumen reduction) in intermediate/high-risk asymptomatic patients. A total of 183 consecutive asymptomatic individuals (92 men; mean age 54 +/- 11 years) with more than one major risk factor (obesity, hypertension, diabetes, hypercholesterolaemia, family history, smoking) and an inconclusive or nonfeasible noninvasive stress test result (stress electrocardiography, stress echocardiography, nuclear stress scintigraphy) underwent CT-CA in an outpatient setting. All patients underwent conventional coronary angiography (CAG) with…

AdultMaleCoronary angiographymedicine.medical_specialtyCoronary AngiographyRisk AssessmentSensitivity and SpecificityCoronary artery diseaseAsymptomaticComputed tomography coronary angiographyDiagnosis DifferentialCoronary artery diseaseSDG 3 - Good Health and Well-beingPredictive Value of TestsRisk FactorsOutpatientsPrevalencemedicineHumansRadiology Nuclear Medicine and imagingSicilyAgedNeuroradiologyPrimary preventionComputed tomography coronary angiography Conventional coronary angiography Asymptomatic Primary prevention Coronary artery diseasemedicine.diagnostic_testbusiness.industryUltrasoundCoronary StenosisCalcinosisInterventional radiologyGeneral MedicineMiddle AgedConventional coronary angiographymedicine.diseaseAsymptomaticPredictive value of testsFemaleTomographyRadiologymedicine.symptomSettore MED/36 - Diagnostica Per Immagini E RadioterapiaTomography X-Ray ComputedbusinessCARDIAC CTLa radiologia medica
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Clinical indications for cardiac computed tomography. From the Working Group of the Cardiac Radiology Section of the Italian Society of Medical Radio…

2012

"\"La tomografia computerizzata del cuore (CCT) è diventata uno strumento efficace in differenti contesti clinici. Lo sviluppo della tecnologia ha portato ad una progressiva espansione delle indicazioni con una concomitante riduzione della dose di radiazioni necessaria per l’esecuzione dell’indagine. Ancora oggi sono pochi i documenti delle maggiori società scientifiche internazionali che si esprimono sulle effettive modalità di utilizzo e sulle indicazioni cliniche della CCT; in particolare mancano delle linee guida complete. Questo documento rispecchia la visione del gruppo di lavoro della Sezione di Cardio-Radiologia della Società Italiana di Radiologia Medica in merito alle indicazioni …

medicine.medical_specialtyConsensuslinee guidagenetic structuresCardiac computed tomographyClinical indicationscardiac CTGuidelinesRadiation DosageComputed tomography coronary angiographycctCCT; Clinical indications; Computed tomography coronary angiography; Consensus; CTCA; Guidelines; Cardiovascular Diseases; Humans; Italy; Radiation Dosage; Tomography X-Ray ComputedmedicinectcaHumansRadiology Nuclear Medicine and imagingMedical physicsguidelinesTomographyNeuroradiologymedicine.diagnostic_testbusiness.industryRadiation doseCTCAInterventional radiologyGeneral Medicineindicazioni clinichecomputed tomography coronary angiographyctca; guidelines; consensus; clinical indications; computed tomography coronary angiography; cctAngiografia coronarica a tomografia computerizzataconsensoeye diseasesAngiografia coronarica a tomografia computerizzata linee guida consenso indicazioni cliniche; computed tomography coronary angiography guidelines consensus clinical indicationsCCTX-Ray ComputedItalyconsensusCardiovascular DiseasesClinical indicationsense organsRadiologySettore MED/36 - Diagnostica Per Immagini E RadioterapiabusinessTomography X-Ray Computedclinical indicationsLa Radiologia medica
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Heart anatomy

2012

Heartcardiac CTSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Role of cardiac computed tomography in the evaluation of coronary artery stenosis in patients with ascending aorta aneurysm detected at transthoracic…

2016

OBJECTIVE The aim of our study was to evaluate the diagnostic performance of cardiac computed tomography (CCT) in the evaluation of coronary artery stenosis in patients with ascending aorta aneurysm detected at transthoracic echocardiography. METHODS We conducted a retrospective analysis of patients with an aneurysm 45 mm or greater at transthoracic echocardiography who underwent CCT from 2012 to 2014 in our hospital. We calculated the sensitivity, specificity, and positive and negative predictive values of CCT for the assessment of coronary artery stenosis (<50% or ≥50% stenosis) in patients who underwent conventional coronary angiography. RESULTS We included 104 patients (73 men, aged 64 …

Malemedicine.medical_specialtyRadiology Nuclear Medicine and ImagingTransthoracic echocardiography030204 cardiovascular system & hematologyCoronary AngiographyMultimodal ImagingSensitivity and Specificity030218 nuclear medicine & medical imagingCoronary artery disease03 medical and health sciencesAortic aneurysm0302 clinical medicineAneurysmmedicine.arteryPositive predicative valueInternal medicineAscending aortamedicineCardiac CTHumansAortaAortabusiness.industryCoronary StenosisReproducibility of ResultsMiddle Agedmedicine.diseaseAneurysmAortic AneurysmStenosismedicine.anatomical_structureEchocardiographyCardiologyFemaleRadiologyTomography X-Ray ComputedbusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaArtery
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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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Italian multicenter, prospective study to evaluate the negative predictive value of 16- and 64-slice MDCT imaging in patients scheduled for coronary …

2009

This was a prospective, multicenter study designed to evaluate the utility of MDCT in the diagnosis of coronary artery disease (CAD) in patients scheduled for elective coronary angiography (CA) using different MDCT systems from different manufacturers. Twenty national sites prospectively enrolled 367 patients between July 2004 and June 2006. Computed tomography (CT) was performed using a standardized/optimized scan protocol for each type of MDCT system (> or =16 slices) and compared with quantitative CA performed within 2 weeks of MDCT. A total of 284 patients (81%) were studied by 16-slice MDCT systems, while 66 patients (19%) by 64-slice MDCT scanners. The primary analysis was on-site/off…

Coronary angiographyAdultDiagnostic ImagingMalemedicine.medical_specialtyCoronary Artery DiseaseCoronary Angiographydiagnosis/radiographyCoronary artery diseasemethodsCoronary artery disease16- and 64-slice MDCT imaging coronary angiographySettore MED/36 - Diagnostica per Immagini e RadioterapiaPredictive Value of TestsCoronary Angiography/*methods Coronary Artery Disease/*diagnosis/*radiography Diagnostic Imaging/methods80 and overCardiac CTMedicineHumansRadiology Nuclear Medicine and imagingIn patientcardiovascular diseasesProspective StudiesProspective cohort studyTomographyNeuroradiologyAgedAged 80 and overmedicine.diagnostic_testbusiness.industryMultidetector CTNon invasiveReproducibility of ResultsInterventional radiologyGeneral MedicineAdult Aged Aged; 80 and over Coronary Angiography; methods Coronary Artery Disease; diagnosis/radiography Diagnostic Imaging; methods Female Humans Italy Male Middle Aged Predictive Value of Tests Prospective Studies Reproducibility of Results Tomography; X-Ray Computed; methodsMiddle Agedmedicine.diseasePredictive valueSettore MED/11 - Malattie Dell'Apparato CardiovascolareX-Ray Computedcoronary angiographyCTCardiac CT; Coronary artery disease; Multidetector CTItalyFemaleRadiologycoronary angiographybusinessTomography X-Ray Computed
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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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Coronary CT angiography using iterative reconstruction 
vs. filtered back projection: evaluation of image quality.

2014

To compare image quality of iterative reconstruction algorithm(IRIS) vs. standard filtered back projection(FBP) reconstruction in CT Coronary Angiography (CTCA).Thirty-four consecutive patients underwent CTCA for suspected or known CAD with Dual-Source CT (DSCT-Flash, Siemens). All datasets were reconstructed with 0.75/0.4 and 0.6/0.4 mm slice thickness/increment, using three standard FBP kernels (B26-B30-B46) and three comparable IRIS algorithms (I26-I30-I46). Vascular attenuation and noise were measured. CT vascular attenuation values [HU] were measured in: ascending aorta (Ao), right (RCA) and left (LCA) coronary artery, respectively. Signal-to-noise (SNR) and contrast-to-noise (CNR) rat…

MaleImage Processing Computer-AssistedHumansFemaleCoronary Artery DiseaseProspective StudiesMiddle Agediterative reconstruction signal noise cardiac CT filtered back projectionSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCoronary AngiographyTomography X-Ray ComputedAlgorithmsAged
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