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dc.contributor.authorSun, Zhonghua
dc.date.accessioned2017-01-30T12:24:25Z
dc.date.available2017-01-30T12:24:25Z
dc.date.created2009-03-05T00:58:04Z
dc.date.issued2007
dc.identifier.citationSun, Zhonghua. 2007. Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index. European Journal of Radiology. 61 (3): pp. 534-540.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/21306
dc.identifier.doi10.1016/j.ejrad.2006.10.007
dc.description.abstract

Purpose: To investigate the correlation between image noise and body mass index (BMI) in multislice CT angiography (MSCT) for patients with abdominal aortic aneurysm (AAA) treated with endovascular stent grafts. Materials and Methods: Seventeen patients who underwent MSCT following endovascular repair of AAA were included in the study. Image noise (standard deviation of the CT attenuation: SD) and signal to noise ratio (SNR) were plotted against BMI to demonstrate the correlation using a linear regression method. Image quality of 3D reconstructions was correlated to the SNR and BMI. Results: The r-value of linear regression between SD and BMI was 0.578 (p < 0.05), 0.835 and 0.802 (p < 0.001), respectively, at the level of renal artery, aortic aneurysm and common iliac artery. The r-value of linear regression between SNR and BMI was 0.332, 0.516 and 0.552 (p < 0.05), respectively, at above three levels. Image quality of 3D reconstructions was compromised in five patients and diagnosis was affected in two patients with BMI more than 30. Conclusion: A significant correlation was observed between image noise and BMI in MSCT angiography of endovascular repair of AAA. Our findings are valuable for optimisation of MSCT angiography scanning protocols and reduction of radiation dose in MSCT examinations.

dc.publisherElsevier Ireland
dc.subjectimage noise
dc.subjectsignal to noise ratio
dc.subjectabdominal aortic aneurysm
dc.subjectbody mass index
dc.subjectstent graft
dc.subjectMultislice CT
dc.titleMultislice CT angiography in aortic stent grafting: relationship between image noise and body mass index
dc.typeJournal Article
dcterms.source.volume61
dcterms.source.number3
dcterms.source.startPage534
dcterms.source.endPage540
dcterms.source.issn0720048X
dcterms.source.titleEuropean Journal of Radiology
curtin.note

The link to the journal’s home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/506039/description#description

curtin.note

Copyright © 2007 Elsevier Ltd. All rights reserved

curtin.departmentDiscipline of Medical Imaging Science
curtin.accessStatusFulltext not available
curtin.facultyDepartment of Medical Imaging and Applied Physics
curtin.facultySchool of Science
curtin.facultyFaculty of Science and Engineering


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