Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla
Abstract Background To compare the Self-referenced and Referenced measurement methods in assessing basilar artery (BA) atherosclerotic plaque employing dark blood high-resolution MRI at 3 Tesla. Methods Forty patients with > 20% stenosis as identified by conventional MRA were recruited and evalua...
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| Format: | Article |
| Language: | English |
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BMC
2018-12-01
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| Series: | BMC Medical Imaging |
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| Online Access: | http://link.springer.com/article/10.1186/s12880-018-0293-1 |
| _version_ | 1819162565340561408 |
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| author | Luguang Chen Qian Zhan Wenjia Peng Tao Song Qi Liu Jianping Lu |
| author_facet | Luguang Chen Qian Zhan Wenjia Peng Tao Song Qi Liu Jianping Lu |
| author_sort | Luguang Chen |
| collection | DOAJ |
| description | Abstract Background To compare the Self-referenced and Referenced measurement methods in assessing basilar artery (BA) atherosclerotic plaque employing dark blood high-resolution MRI at 3 Tesla. Methods Forty patients with > 20% stenosis as identified by conventional MRA were recruited and evaluated on a 3 Tesla MRI system. The outer wall, inner wall and lumen areas of maximal lumen narrowing site and the outer wall and lumen areas of sites that were proximal and distal to the maximal lumen narrowing site were manually traced. Plaque area (PA), stenosis rate (SR) and percent plaque burden (PPB) were calculated using the Self-referenced and Referenced measurement methods, respectively. To assess intra-observer reproducibility, BA plaque was measured twice with a 2-week interval in between measurements. Results Thirty-seven patients were included in the final analysis. There were no significant differences in PA, SR and PPB measurements between the two methods. The intra-class coefficients and coefficient of variations (CV) ranged from 0.976 to 0.990 and from 3.73 to 5.61% for the Self-referenced method and ranged from 0.928 to 0.971 and from 4.64 to 9.95% for the Referenced method, respectively. Both methods are effective in the evaluation of BA plaque. However, the CVs of the Self-referenced method is lower than the Referenced measurement method. Moreover, Bland-Altman plots showed that the Self-referenced method has a narrower interval than the Referenced measurement method. Conclusions The Self-referenced method is better and more convenient for evaluating BA plaque, and it may serve as a promising method for evaluation of basilar atherosclerotic plaque. |
| first_indexed | 2024-12-22T17:30:15Z |
| format | Article |
| id | doaj.art-fadb4e7a57214edca420e8c748f75398 |
| institution | Directory Open Access Journal |
| issn | 1471-2342 |
| language | English |
| last_indexed | 2024-12-22T17:30:15Z |
| publishDate | 2018-12-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Medical Imaging |
| spelling | doaj.art-fadb4e7a57214edca420e8c748f753982022-12-21T18:18:38ZengBMCBMC Medical Imaging1471-23422018-12-011811810.1186/s12880-018-0293-1Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 teslaLuguang Chen0Qian Zhan1Wenjia Peng2Tao Song3Qi Liu4Jianping Lu5Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityDepartment of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityDepartment of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityDepartment of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityDepartment of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityDepartment of Radiology, Changhai Hospital of Shanghai, The Second Military Medical UniversityAbstract Background To compare the Self-referenced and Referenced measurement methods in assessing basilar artery (BA) atherosclerotic plaque employing dark blood high-resolution MRI at 3 Tesla. Methods Forty patients with > 20% stenosis as identified by conventional MRA were recruited and evaluated on a 3 Tesla MRI system. The outer wall, inner wall and lumen areas of maximal lumen narrowing site and the outer wall and lumen areas of sites that were proximal and distal to the maximal lumen narrowing site were manually traced. Plaque area (PA), stenosis rate (SR) and percent plaque burden (PPB) were calculated using the Self-referenced and Referenced measurement methods, respectively. To assess intra-observer reproducibility, BA plaque was measured twice with a 2-week interval in between measurements. Results Thirty-seven patients were included in the final analysis. There were no significant differences in PA, SR and PPB measurements between the two methods. The intra-class coefficients and coefficient of variations (CV) ranged from 0.976 to 0.990 and from 3.73 to 5.61% for the Self-referenced method and ranged from 0.928 to 0.971 and from 4.64 to 9.95% for the Referenced method, respectively. Both methods are effective in the evaluation of BA plaque. However, the CVs of the Self-referenced method is lower than the Referenced measurement method. Moreover, Bland-Altman plots showed that the Self-referenced method has a narrower interval than the Referenced measurement method. Conclusions The Self-referenced method is better and more convenient for evaluating BA plaque, and it may serve as a promising method for evaluation of basilar atherosclerotic plaque.http://link.springer.com/article/10.1186/s12880-018-0293-1Basilar arteryAtherosclerosisMagnetic resonance imaging |
| spellingShingle | Luguang Chen Qian Zhan Wenjia Peng Tao Song Qi Liu Jianping Lu Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla BMC Medical Imaging Basilar artery Atherosclerosis Magnetic resonance imaging |
| title | Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla |
| title_full | Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla |
| title_fullStr | Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla |
| title_full_unstemmed | Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla |
| title_short | Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla |
| title_sort | comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high resolution mri at 3 tesla |
| topic | Basilar artery Atherosclerosis Magnetic resonance imaging |
| url | http://link.springer.com/article/10.1186/s12880-018-0293-1 |
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