Back to Search
Start Over
Remodeling in peripheral vein graft revisions: Serial study with three-dimensional ultrasound imaging
- Source :
- Journal of Vascular Surgery. 37:798-807
- Publication Year :
- 2003
- Publisher :
- Elsevier BV, 2003.
-
Abstract
- Objective: Remodeling of vein grafts in the lower limb can lead to stenotic lesions that threaten long-term graft patency. Progressive changes in vein graft geometry were measured at sites of repaired stenoses with three-dimensional (3D) ultrasound imaging. Methods: Ten vein graft revisions with patch angioplasty were followed up for 31 to 47 weeks. Four revisions were at valve sites, and six were at sites of diffuse intimal hyperplasia. Sets of spatially registered two-dimensional (2D) cross-sectional ultrasound images were assembled to create 3D computer models of each vein graft. Cross-sectional area measurements in planes normal to the vessel center axis were calculated from the 3D surface reconstructions. Data sets from serial studies were registered in a common coordinate system, and cross-sectional area measurements were compared at matched sites. Results: Three of the four vein graft revisions at valve sites changed by less than 18%, and one decreased in cross-sectional area by 61%. Five of the six revisions at sites of diffuse intimal hyperplasia demonstrated significant decreases in lumen area ranging from 26% to 61%, and one revision exhibited no significant change in cross-sectional area. Reproducibility of the cross-sectional area measurements derived from the 3D imaging technique was 6.9%. Conclusions: Sequential area measurements from 3D ultrasound scans demonstrated different remodeling patterns and rates of change among revision sites within the vein grafts. Lumen narrowing documented with 3D scanning was not associated with consistent flow velocity changes on conventional duplex graft surveillance scans. (J Vasc Surg 2003;37:798-807.)
- Subjects :
- Adult
Male
Reoperation
medicine.medical_specialty
Intimal hyperplasia
medicine.medical_treatment
Lumen (anatomy)
Models, Biological
Imaging, Three-Dimensional
Angioplasty
Image Processing, Computer-Assisted
medicine
Humans
Computer Simulation
3D ultrasound
Vascular Diseases
Derivation
Vein
Aged
Ultrasonography
Aged, 80 and over
Wound Healing
Anatomy, Cross-Sectional
medicine.diagnostic_test
business.industry
Vascular disease
Ultrasound
Graft Occlusion, Vascular
Middle Aged
medicine.disease
medicine.anatomical_structure
Lower Extremity
Blood Vessels
Female
Surgery
Radiology
Cardiology and Cardiovascular Medicine
business
Blood Flow Velocity
Subjects
Details
- ISSN :
- 07415214
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Journal of Vascular Surgery
- Accession number :
- edsair.doi.dedup.....cc9ea03ae7146ecb7705f50be25926f4