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Early diagnosis of microvascular damage using conventional ultrasound imaging encounters challenges in sensitivity and specificity owing to the inherent diffraction limit. Ultrasound localization microscopy (ULM) has been developed to obtain microvasculature and microvascular hemodynamics within the kidney, and would be a promising tool for the early diagnosis of CKD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this study, the advantage of quantitative indexes obtained by using ULM (mean arterial blood flow speeds of different segments of interlobular arteries) over indexes obtained using conventional clinical serum (\u03b22\u2010microglobulin, serum urea nitrogen, and creatinine) and urine (24\u2010h urine volume and urine protein) tests and ultrasound Doppler imaging (peak systolic velocity [PSV], end\u2010diastolic velocity [EDV], and resistance index [RI]) and contrast\u2010enhanced ultrasound imaging (CEUS; rise time [RT], peak intensity [IMAX], mean transit time [mTT], and area under the time\u2010intensity curve [AUC]) for early diagnosis of HN were investigated. Examinations were carried out on six spontaneously hypertensive rats (SHR) and five normal Wistar\u2013Kyoto (WKY) rats at the age of 10\u00a0weeks.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The experimental results show that the indicators derived from conventional clinical inspections (serum and urine tests) and ultrasound imaging (PSV, EDV, RI, RT, IMAX, mTT, and AUC) do not show significant difference between hypertensive and healthy rats (<jats:italic>p<\/jats:italic>\u00a0&gt;\u00a00.05), while the TTP of the SHR group (28.52 \u00b1 5.52 s) derived from CEUS is significantly higher than that of the WKY group (18.68 \u00b1 7.32 s; <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05). The mean blood flow speed in interlobular artery of SHR (12.47 \u00b1 1.06\u00a0mm\/s) derived from ULM is significantly higher than that of WKY rats (10.13 \u00b1 1.17\u00a0mm\/s; <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The advantages of ULM over conventional clinical inspections and ultrasound imaging methods for early diagnosis of HN were validated. The quantitative results show that ULM can effectively diagnose HN at the early stage by detecting the blood flow speed changes of interlobular arteries. ULM may promise a reliable technique for early diagnosis of HN in the future.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mp.15583","type":"journal-article","created":{"date-parts":[[2022,2,26]],"date-time":"2022-02-26T19:22:29Z","timestamp":1645903349000},"page":"2295-2308","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["In vivo assessment of hypertensive nephrosclerosis using ultrasound localization microscopy"],"prefix":"10.1002","volume":"49","author":[{"given":"Lanyan","family":"Qiu","sequence":"first","affiliation":[{"name":"Department of Ultrasound, Beijing Friendship Hospital Capital Medical University  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingke","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, School of Medicine Tsinghua University  Beijing 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