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Tissue clearing techniques improve light penetration and extend imaging depth. Typically, perfusion\u2010based approaches are used for vascular labeling and tissue clearing. However, immersion\u2010based methodologies provide enhanced practicality when processing tissues from larger animal models.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We present an immersion\u2010based microvascular labeling and tissue clearing protocol for myocardial tissues using tomato lectin and CUBIC (Clear, Unobstructed Brain\/Body Imaging Cocktails and Computational analysis), demonstrating success for imaging depths of up to 150\u2009\u03bcm. This protocol optimized the delipidation and quenching stages for rat and pig myocardial tissues. Image quality was assessed using an automated analysis of signal\u2010to\u2010noise ratios (SNR) and average z\u2010slice intensities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Optimal image quality was obtained with 24\u2010h CUBIC Reagent I incubation times. Quenching agents TrueVIEW, Glycine, and Trypan Blue did not significantly impact SNR values. TrueBlack and Sudan Black B showed trends of reduced imaging depth compared to controls without quencher incubation. Overall, rat myocardial tissues had higher SNRs than pig tissue samples.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This protocol provides a rigorous foundation for the optimization of immersion\u2010based approaches for myocardial tissue clearing. Future studies will quantify anatomical and topological coronary microvascular to compare disease states.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/micc.70034","type":"journal-article","created":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T05:15:45Z","timestamp":1762406145000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Immersion\u2010Based Clearing and Autofluorescence Quenching in Myocardial Tissue"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7413-8657","authenticated-orcid":false,"given":"Victoria E.","family":"Sturgess","sequence":"first","affiliation":[{"name":"Department of Biomedical Engineering University of Michigan  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-3727-4115","authenticated-orcid":false,"given":"Nadia 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