Search results for " cardiac CT"

showing 3 items of 3 documents

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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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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Updated diagnosticprognostic paradigm for CAD: a narrative review.

2020

Cardiovascular diseases are the first cause of death globally; early detection of coronary artery disease (CAD) is a challenge for clinicians and radiologists. Over the past 2 decades there have been several improvements in the methods for the assessment of diagnosis and prognosis in patients with suspected CAD; most of these methods are imaging methods and they operate with high-end technologies. Cardiac computed tomography (CCT) as we know it today was introduced in 1998 and has ever progressed with constant pace. The first decade was the technical validation phase of the method while the second decade was the clinical validation phase. CCT has developed an excellent diagnostic and progno…

medicine.medical_specialtyPharmacological therapyPrognosiEarly detectionCAD010501 environmental sciences01 natural sciencesCoronary artery disease03 medical and health sciences0302 clinical medicineOptimal medical therapy (OMT)MedicineIn patient030212 general & internal medicineIntensive care medicine0105 earth and related environmental sciencesCause of deathbusiness.industryTherapy.medicine.diseaseCoronary artery disease (CAD)AtherosclerosiCohortNarrative reviewReview Article on Impact of Cardiac CT in Clinical PracticeCardiology and Cardiovascular MedicinebusinessCardiac computed tomography (CCT)DiagnosiCardiovascular diagnosis and therapy
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