{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T11:09:03Z","timestamp":1790161743645,"version":"4.1.0"},"reference-count":29,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T00:00:00Z","timestamp":1785283200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T00:00:00Z","timestamp":1785283200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Superficial digital flexor tendon (SDFT) injuries are common in athletic horses and are associated with prolonged healing and high reinjury rates. Conventional ultrasonography provides structural information but limited physiologic assessment. This study compared microvascular imaging (MVI) and Power Doppler (PD) for evaluating vascular changes in a collagenase\u2010induced equine SDFT injury model and assessed the effect of scanning technique on vascular signal detection. Eight adult Thoroughbred horses underwent bilateral collagenase\u2010induced SDFT injury, with one forelimb randomly assigned to intralesional autologous protein solution treatment and the contralateral limb receiving intralesional saline. Ultrasonographic examinations were performed at baseline and Weeks 0, 2, 4, 8, and 12 post\u2010injury. Longitudinal and transverse MVI and PD images were evaluated using semiquantitative vascularity scores and quantitative vascularity ratios. Mixed\u2010effects Poisson regression accounted for repeated measures and assessed effects of imaging modality, time, scanning plane, weight\u2010bearing (WB) stance, stand\u2010off use, and observer experience. MVI detected higher vascularity than PD at all post\u2010injury time points (2.04 [95% confidence intervals\u2014CI: 1.73\u20132.34] vs. 0.87 [0.64\u20131.10]) with peak vascularity at Week 2 followed by gradual decline during healing. Quantitative vascularity ratios mirrored semiquantitative findings. Longitudinal imaging yielded greater vascular detection than transverse imaging for both techniques (1.97 [95% CI: 1.72\u20132.22] vs. 0.92 [0.69\u20131.15]), whereas WB status and stand\u2010off pad use had no statistical significant effect. Observer experience influenced vascularity scores but not temporal trends. These findings demonstrate MVI detects more intratendinous vascularity than PD during SDFT injury and healing, and support its use as a complementary tool for monitoring equine tendinopathy.<\/jats:p>","DOI":"10.1111\/vru.70226","type":"journal-article","created":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T07:49:52Z","timestamp":1785311392000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Evaluation of Microvascular Flow Imaging and Power Doppler Ultrasonography in an Equine Model of Induced Superficial Digital Flexor Tendonitis"],"prefix":"10.1111","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-1382-2164","authenticated-orcid":false,"given":"Miriam R.","family":"Garcia\u2010Collao","sequence":"first","affiliation":[{"name":"Department of Clinical Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania  Kennett Square Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0398-2444","authenticated-orcid":false,"given":"Kyla","family":"Ortved","sequence":"additional","affiliation":[{"name":"Department of Clinical Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania  Kennett Square Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4654-0569","authenticated-orcid":false,"given":"Darko","family":"Stefanovski","sequence":"additional","affiliation":[{"name":"Department of Clinical Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania  Kennett Square Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9384-2574","authenticated-orcid":false,"given":"Joie L.","family":"Christensen","sequence":"additional","affiliation":[{"name":"Department of Clinical Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania  Kennett Square Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire","family":"Underwood","sequence":"additional","affiliation":[{"name":"Department of Clinical Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania  Kennett Square Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,29]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.2746\/042516409x480395"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.2004.225.90"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.2746\/0425164044868422"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/VR.132.19.476"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/J.2042\u20103306.2009.00021.X"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.CVEQ.2023.06.002"},{"key":"e_1_2_9_8_1","first-page":"352","article-title":"Tendon and Ligament Injury","volume":"54","author":"Smith R. 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