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Influence of iterative image reconstruction on CT-based calcium score measurements
- Source :
- International Journal Of Cardiovascular Imaging, 30(5), 961-967. SPRINGER
- Publication Year :
- 2014
-
Abstract
- Iterative reconstruction techniques for coronary CT angiography have been introduced as an alternative for traditional filter back projection (FBP) to reduce image noise, allowing improved image quality and a potential for dose reduction. However, the impact of iterative reconstruction on the coronary artery calcium score is not fully known. In 112 consecutive stable patients with suspected coronary artery disease, the coronary calcium scores were assessed. Comparisons were made between the Agatston, volume and mass scores obtained with traditional FBP, and by using adaptive statistical iterative reconstruction (ASIR). A significant reduction of the Agatston score, volume score and mass score was observed for ASIR when compared to FBP, with median differences of resp. 26, 5 mm(3) and 1 mg. Using the ASIR reconstruction, the number of patients with a calcium score of zero increased by 13 %. Iterative CT reconstruction significantly reduces the Agatston, volume and mass scores. Since the calcium score is used as a prognostic tool for coronary artery disease, caution must be taken when using iterative reconstruction.
- Subjects :
- Male
medicine.medical_specialty
Image quality
Calcium scoring
ELECTRON-BEAM TOMOGRAPHY
Iterative reconstruction
Cardiac imaging techniques
Coronary Angiography
Electron beam tomography
Multimodal Imaging
Coronary artery disease
EVENTS
Predictive Value of Tests
Image noise
medicine
Humans
Radiology, Nuclear Medicine and imaging
COMPUTED-TOMOGRAPHY
Vascular Calcification
Computed tomography
Cardiac imaging
Tomography, Emission-Computed, Single-Photon
Iterative image reconstruction
Coronary disease
medicine.diagnostic_test
business.industry
Middle Aged
QUANTIFICATION
medicine.disease
CALCIFICATION
REGISTRY
Radiographic Image Interpretation, Computer-Assisted
CORONARY-ARTERY-DISEASE
RADIATION
Female
Radiology
Cardiology and Cardiovascular Medicine
Agatston score
Nuclear medicine
business
Tomography, X-Ray Computed
Coronary stenosis
Calcium score
Algorithms
CARDIAC CT
Subjects
Details
- Language :
- English
- ISSN :
- 15695794
- Database :
- OpenAIRE
- Journal :
- International Journal Of Cardiovascular Imaging, 30(5), 961-967. SPRINGER
- Accession number :
- edsair.doi.dedup.....0aa2bebb50ffe0fb1c43edd31e400ead