Repository logo
 
Publication

Optimising protocol of acquisition and post-processing procedures in the assessment of coronary artery disease by computed tomography

2015Journal article Restricted access
Simple item page
dc.contributor.authorRibeiro, Margarida
dc.contributor.authorGonçalves, Nuno Caldeira
dc.contributor.authorBate, Inês Baião
dc.contributor.authorO'Neill, João Goyri
dc.contributor.authorMaurício, J. Cruz
dc.date.accessioned2015-03-16T17:37:01Z
dc.date.available2015-03-16T17:37:01Z
dc.date.issued2015
dc.description.abstractCoronary artery disease (CAD) is currently one of the most prevalent diseases in the world population and calcium deposits in coronary arteries are one direct risk factor. These can be assessed by the calcium score (CS) application, available via a computed tomography (CT) scan, which gives an accurate indication of the development of the disease. However, the ionising radiation applied to patients is high. This study aimed to optimise the protocol acquisition in order to reduce the radiation dose and explain the flow of procedures to quantify CAD. The main differences in the clinical results, when automated or semiautomated post-processing is used, will be shown, and the epidemiology, imaging, risk factors and prognosis of the disease described. The software steps and the values that allow the risk of developingCADto be predicted will be presented. A64-row multidetector CT scan with dual source and two phantoms (pig hearts) were used to demonstrate the advantages and disadvantages of the Agatston method. The tube energy was balanced. Two measurements were obtained in each of the three experimental protocols (64, 128, 256 mAs). Considerable changes appeared between the values of CS relating to the protocol variation. The predefined standard protocol provided the lowest dose of radiation (0.43 mGy). This study found that the variation in the radiation dose between protocols, taking into consideration the dose control systems attached to the CT equipment and image quality, was not sufficient to justify changing the default protocol provided by the manufacturer.por
dc.identifier.citationRibeiro MM, Gonçalves NC, Bate IB, O'Neill JG, Maurício JC. Optimising protocol of acquisition and post-processing procedures in the assessment of coronary artery disease by computed tomography. Comput Methods Biomech Biomed Eng. 2015;3(2):91-100.por
dc.identifier.doi10.1080/21681163.2014.895680
dc.identifier.urihttp://hdl.handle.net/10400.21/4378
dc.language.isoporpor
dc.peerreviewedyespor
dc.publisherTaylor & Francispor
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/21681163.2014.895680por
dc.subjectComputed tomographypor
dc.subjectMedical clinicspor
dc.subjectComputational bio-imaging and visualisationpor
dc.subjectData processing and analysispor
dc.subjectMedical imagingpor
dc.subjectVisualisationpor
dc.titleOptimising protocol of acquisition and post-processing procedures in the assessment of coronary artery disease by computed tomographypor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage100
oaire.citation.startPage91
oaire.citation.titleComputer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualizationpor
oaire.citation.volume3
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Optimising protocol of acquisition and post-processing procedures in the assessment of coronary artery disease by computed tomography.pdf
Size:
494.01 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTeSL - Artigos