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An 83-year-old white man with a poorly maturing radio-cephalic fistula received an angioplasty at the anastomosis followed by branch ligation 28\u2009days later. Duplex Doppler measurements corroborated the blood flow related changes anticipated from the interventions. The experimental distensibility results showed that it is technically feasible to measure subtle vessel wall motion changes with high resolution (sub-millimeter) using standard Digital Imaging and Communications in Medicine (DICOM) ultrasound data, which are readily available on conventional ultrasound scanners. While this methodology was originally developed using high resolution radiofrequency from ultrasound data, the goal of this study was to use DICOM data, which makes this technology accessible to a wide range of users.<\/jats:p>","DOI":"10.1177\/1129729820959910","type":"journal-article","created":{"date-parts":[[2020,9,26]],"date-time":"2020-09-26T05:06:10Z","timestamp":1601096770000},"page":"304-308","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Ultrasound speckle tracking to detect vascular distensibility changes from angioplasty and branch ligation in a radio-cephalic fistula: Use of novel open source software"],"prefix":"10.1177","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5193-3930","authenticated-orcid":false,"given":"William F","family":"Weitzel","sequence":"first","affiliation":[{"name":"VA Ann Arbor Healthcare System, Ann Arbor, MI, USA"},{"name":"Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3454-2433","authenticated-orcid":false,"given":"Nirmala","family":"Rajaram","sequence":"additional","affiliation":[{"name":"VA Ann Arbor Healthcare System, Ann Arbor, MI, USA"},{"name":"Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yihao","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA"},{"name":"Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian J","family":"Thelen","sequence":"additional","affiliation":[{"name":"VA Ann Arbor Healthcare System, Ann Arbor, MI, USA"},{"name":"Department of Statistics, University of Michigan, Ann Arbor, MI, 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