Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index
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 repa...
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| Format: | Journal Article |
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Elsevier Ireland
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/21306 |
| _version_ | 1848750553333497856 |
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| author | Sun, Zhonghua |
| author_facet | Sun, Zhonghua |
| author_sort | Sun, Zhonghua |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T07:38:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-21306 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:38:40Z |
| publishDate | 2007 |
| publisher | Elsevier Ireland |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-213062017-09-13T15:59:54Z Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index Sun, Zhonghua image noise signal to noise ratio abdominal aortic aneurysm body mass index stent graft Multislice CT 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. 2007 Journal Article http://hdl.handle.net/20.500.11937/21306 10.1016/j.ejrad.2006.10.007 Elsevier Ireland restricted |
| spellingShingle | image noise signal to noise ratio abdominal aortic aneurysm body mass index stent graft Multislice CT Sun, Zhonghua Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title | Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title_full | Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title_fullStr | Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title_full_unstemmed | Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title_short | Multislice CT angiography in aortic stent grafting: relationship between image noise and body mass index |
| title_sort | multislice ct angiography in aortic stent grafting: relationship between image noise and body mass index |
| topic | image noise signal to noise ratio abdominal aortic aneurysm body mass index stent graft Multislice CT |
| url | http://hdl.handle.net/20.500.11937/21306 |