{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T21:04:40Z","timestamp":1794344680127,"version":"4.9.0"},"reference-count":34,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2009,7,21]],"date-time":"2009-07-21T00:00:00Z","timestamp":1248134400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Angiology"],"published-print":{"date-parts":[[2009,8]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The purpose of the present article was to determine the changes in luminal vessel area, blood flow, and wall shear stress in both the inflow artery and the venous stenosis of arteriovenous polytetrafluoroethylene (PTFE) grafts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and materials<\/jats:title>\n                    <jats:p>Polytetrafluoroethylene grafts were placed from the carotid artery to the ipsilateral jugular vein in 8 castrated juvenile male pigs. Contrast-enhanced magnetic resonance angiography (MRA) with cine phase-contrast magnetic resonance imaging (MRI) was performed 2 weeks after graft placement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The mean wall shear stress at the venous stenosis was 4 times higher than the control vein, while the inflow artery was only 2-fold higher. By day 14, venous stenosis had formed, which was characterized by narrowed area and elevated blood flow.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>By day 14, there is venous stenosis formation in porcine arteriovenous PTFE grafts with increased shear stress with decreased area when compared to control vein.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0003319709335908","type":"journal-article","created":{"date-parts":[[2009,9,16]],"date-time":"2009-09-16T03:12:59Z","timestamp":1253070779000},"page":"441-447","source":"Crossref","is-referenced-by-count":16,"title":["Wall Shear Stress Measurement Using Phase Contrast Magnetic Resonance Imaging with Phase Contrast Magnetic Resonance Angiography in Arteriovenous Polytetrafluoroethylene Grafts"],"prefix":"10.1177","volume":"60","author":[{"given":"Sanjay","family":"Misra","sequence":"first","affiliation":[{"name":"Department of Radiology, Division of Vascular and Interventional Radiology, Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex A.","family":"Fu","sequence":"additional","affiliation":[{"name":"Department of Radiology, Division of Vascular and Interventional Radiology, Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khamal D.","family":"Misra","sequence":"additional","affiliation":[{"name":"Department of Radiology, Division of Vascular and Interventional Radiology, Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James F.","family":"Glockner","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester Minnesota."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Debabrata","family":"Mukhopadhyay","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester 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