Real-time 3D fusion echocardiography.
OBJECTIVES: This study assessed 3-dimensional fusion echocardiography (3DFE), combining several real-time 3-dimensional echocardiography (RT3DE) full volumes from different transducer positions, for improvement in quality and completeness of the reconstructed image. BACKGROUND: The RT3DE technique...
| Main Authors: | , , , , , , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado em: |
2010
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| _version_ | 1826300781148504064 |
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| author | Szmigielski, C Rajpoot, K Grau, V Myerson, S Holloway, C Noble, J Kerber, R Becher, H |
| author_facet | Szmigielski, C Rajpoot, K Grau, V Myerson, S Holloway, C Noble, J Kerber, R Becher, H |
| author_sort | Szmigielski, C |
| collection | OXFORD |
| description | OBJECTIVES: This study assessed 3-dimensional fusion echocardiography (3DFE), combining several real-time 3-dimensional echocardiography (RT3DE) full volumes from different transducer positions, for improvement in quality and completeness of the reconstructed image. BACKGROUND: The RT3DE technique has limited image quality and completeness of datasets even with current matrix transducers. METHODS: RT3DE datasets were acquired in 32 participants (mean age 33.7 +/- 18.8 years; 27 men, 5 women). The 3DFE technique was also performed on a cardiac phantom. The endocardial border definition of RT3DE and 3DFE segments was graded for quality: good (2), intermediate (1), poor (0), or out of sector. Short-axis and apical images were compared in RT3DE and 3DFE, yielding 2,048 segments. The images were processed to generate 3DFE and then compared with cardiac magnetic resonance. RESULTS: In the heart phantom, fused datasets showed improved contrast to noise ratio from 49.4 +/- 25.1 (single dataset) to 125.4 +/- 25.1 (6 datasets fused together). In subjects, more segments were graded as good quality with 3DFE (805 vs. 435; p < 0.0001) and fewer as intermediate (184 vs. 283; p = 0.017), poor (31 vs. 265; p < 0.0001), or out of sector (4 vs. 41; p < 0.001) compared with the single 3-dimensional dataset. End-diastolic volume (EDV) and end-systolic volume (ESV) obtained from 3-dimensional fused datasets were equivalent to those from single datasets (EDV 118.2 +/- 39 ml vs. 119.7 +/- 43 ml; p = 0.41; ESV 48.1 +/- 30 ml vs. 48.4 +/- 35 ml; p = 0.87; ejection fraction [EF] 61.0 +/- 10% vs. 61.8 +/- 10%; p = 0.44). Bland-Altman analysis showed good 95% limits of agreement for the nonfused datasets (EDV +/-46 ml; ESV +/-36 ml; EF +/-14%) and the fused datasets (EDV +/-45 ml; ESV +/-35 ml; EF +/-16%), when compared with cardiac magnetic resonance. CONCLUSIONS: Fusion of full-volume datasets resulted in an improvement in endocardial borders, image quality, and completeness of the datasets. |
| first_indexed | 2024-03-07T05:22:22Z |
| format | Journal article |
| id | oxford-uuid:df5b7e25-543e-43e3-9db8-09259777852f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:22:22Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:df5b7e25-543e-43e3-9db8-09259777852f2022-03-27T09:38:54ZReal-time 3D fusion echocardiography.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:df5b7e25-543e-43e3-9db8-09259777852fEnglishSymplectic Elements at Oxford2010Szmigielski, CRajpoot, KGrau, VMyerson, SHolloway, CNoble, JKerber, RBecher, H OBJECTIVES: This study assessed 3-dimensional fusion echocardiography (3DFE), combining several real-time 3-dimensional echocardiography (RT3DE) full volumes from different transducer positions, for improvement in quality and completeness of the reconstructed image. BACKGROUND: The RT3DE technique has limited image quality and completeness of datasets even with current matrix transducers. METHODS: RT3DE datasets were acquired in 32 participants (mean age 33.7 +/- 18.8 years; 27 men, 5 women). The 3DFE technique was also performed on a cardiac phantom. The endocardial border definition of RT3DE and 3DFE segments was graded for quality: good (2), intermediate (1), poor (0), or out of sector. Short-axis and apical images were compared in RT3DE and 3DFE, yielding 2,048 segments. The images were processed to generate 3DFE and then compared with cardiac magnetic resonance. RESULTS: In the heart phantom, fused datasets showed improved contrast to noise ratio from 49.4 +/- 25.1 (single dataset) to 125.4 +/- 25.1 (6 datasets fused together). In subjects, more segments were graded as good quality with 3DFE (805 vs. 435; p < 0.0001) and fewer as intermediate (184 vs. 283; p = 0.017), poor (31 vs. 265; p < 0.0001), or out of sector (4 vs. 41; p < 0.001) compared with the single 3-dimensional dataset. End-diastolic volume (EDV) and end-systolic volume (ESV) obtained from 3-dimensional fused datasets were equivalent to those from single datasets (EDV 118.2 +/- 39 ml vs. 119.7 +/- 43 ml; p = 0.41; ESV 48.1 +/- 30 ml vs. 48.4 +/- 35 ml; p = 0.87; ejection fraction [EF] 61.0 +/- 10% vs. 61.8 +/- 10%; p = 0.44). Bland-Altman analysis showed good 95% limits of agreement for the nonfused datasets (EDV +/-46 ml; ESV +/-36 ml; EF +/-14%) and the fused datasets (EDV +/-45 ml; ESV +/-35 ml; EF +/-16%), when compared with cardiac magnetic resonance. CONCLUSIONS: Fusion of full-volume datasets resulted in an improvement in endocardial borders, image quality, and completeness of the datasets. |
| spellingShingle | Szmigielski, C Rajpoot, K Grau, V Myerson, S Holloway, C Noble, J Kerber, R Becher, H Real-time 3D fusion echocardiography. |
| title | Real-time 3D fusion echocardiography. |
| title_full | Real-time 3D fusion echocardiography. |
| title_fullStr | Real-time 3D fusion echocardiography. |
| title_full_unstemmed | Real-time 3D fusion echocardiography. |
| title_short | Real-time 3D fusion echocardiography. |
| title_sort | real time 3d fusion echocardiography |
| work_keys_str_mv | AT szmigielskic realtime3dfusionechocardiography AT rajpootk realtime3dfusionechocardiography AT grauv realtime3dfusionechocardiography AT myersons realtime3dfusionechocardiography AT hollowayc realtime3dfusionechocardiography AT noblej realtime3dfusionechocardiography AT kerberr realtime3dfusionechocardiography AT becherh realtime3dfusionechocardiography |