Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up
Purpose: To investigate the midterm results of transrenal fixation of abdominal aortic stent-grafts with regard to device migration and encroachment of stent wires on the renal and visceral branches.Methods: Imaging data from 18 patients (15 men; mean age 75 years, range 63 84) undergoing transrenal...
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| Format: | Journal Article |
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International Society of Endovascular Specialists
2006
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| Online Access: | http://www.jevt.org http://hdl.handle.net/20.500.11937/41651 |
| _version_ | 1848756204493340672 |
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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 midterm results of transrenal fixation of abdominal aortic stent-grafts with regard to device migration and encroachment of stent wires on the renal and visceral branches.Methods: Imaging data from 18 patients (15 men; mean age 75 years, range 63 84) undergoing transrenal stent-graft fixation for abdominal aortic aneurysm (AAA) were included in the study. Computed tomographic angiographic data acquired within 1 week of stent-graft implantation were compared to the latest follow-up images. Postprocessing methods generated 3-dimensional (3D) maximum intensity projections (MIP) and virtual intravascular endoscopy (VIE) for evaluation of the relationship between suprarenal stents and aortic branches. Aortic neck angulation was measured in each patient for correlation with the incidence of stent migration.Results: The mean follow-up period was 40 months. 3D image visualizations showed that the stent-graft moved caudally in all patients (range 2.6 14.2 mm), with migration (>10 mm) observed in 4 (22%) patients. Corresponding VIE images documented changes in stent wire encroachment on the aortic branch ostia in 11 patients, including the number and position of crossing stent wires. There was no close relationship between aortic neck angulation and stent migration.Conclusion: The current study demonstrated that migration occurs at midterm follow-up in transrenally deployed stent-grafts. 3D images were valuable for the assessment of stent migration, as well as its relationship with aortic branch ostia. Long-term follow-up of transrenal fixation deserves to be investigated, especially after observing stent migration relative to aortic ostial encroachment. |
| first_indexed | 2025-11-14T09:08:29Z |
| format | Journal Article |
| id | curtin-20.500.11937-41651 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:08:29Z |
| publishDate | 2006 |
| publisher | International Society of Endovascular Specialists |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-416512017-01-30T14:54:08Z Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up Sun, Zhonghua migration Stent-graft suprarenal fixation computed tomography aortic ostium 3D reconstruction Purpose: To investigate the midterm results of transrenal fixation of abdominal aortic stent-grafts with regard to device migration and encroachment of stent wires on the renal and visceral branches.Methods: Imaging data from 18 patients (15 men; mean age 75 years, range 63 84) undergoing transrenal stent-graft fixation for abdominal aortic aneurysm (AAA) were included in the study. Computed tomographic angiographic data acquired within 1 week of stent-graft implantation were compared to the latest follow-up images. Postprocessing methods generated 3-dimensional (3D) maximum intensity projections (MIP) and virtual intravascular endoscopy (VIE) for evaluation of the relationship between suprarenal stents and aortic branches. Aortic neck angulation was measured in each patient for correlation with the incidence of stent migration.Results: The mean follow-up period was 40 months. 3D image visualizations showed that the stent-graft moved caudally in all patients (range 2.6 14.2 mm), with migration (>10 mm) observed in 4 (22%) patients. Corresponding VIE images documented changes in stent wire encroachment on the aortic branch ostia in 11 patients, including the number and position of crossing stent wires. There was no close relationship between aortic neck angulation and stent migration.Conclusion: The current study demonstrated that migration occurs at midterm follow-up in transrenally deployed stent-grafts. 3D images were valuable for the assessment of stent migration, as well as its relationship with aortic branch ostia. Long-term follow-up of transrenal fixation deserves to be investigated, especially after observing stent migration relative to aortic ostial encroachment. 2006 Journal Article http://hdl.handle.net/20.500.11937/41651 http://www.jevt.org International Society of Endovascular Specialists fulltext |
| spellingShingle | migration Stent-graft suprarenal fixation computed tomography aortic ostium 3D reconstruction Sun, Zhonghua Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title | Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title_full | Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title_fullStr | Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title_full_unstemmed | Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title_short | Three-Dimensional Visualization of Suprarenal Aortic Stent-Grafts: Evaluation of Migration in Midterm Follow-up |
| title_sort | three-dimensional visualization of suprarenal aortic stent-grafts: evaluation of migration in midterm follow-up |
| topic | migration Stent-graft suprarenal fixation computed tomography aortic ostium 3D reconstruction |
| url | http://www.jevt.org http://hdl.handle.net/20.500.11937/41651 |