根据试验结果，在所有入选的患者中，28％的病变通过造影认为是非罪犯病变，但是通过VH IVUS检查发现是潜在的高危的薄纤维帽斑块。

According to the trial results, VH IVUS identified potentially high-risk thin-cap fibroatheromas in 28% of lesions that were considered non-culprit by angiography.

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易破裂的不稳定性斑块中细胞外基质成分减少，斑块的纤维帽较薄，在外力的作用下易于破裂。

Unstable plaque which is vulnerable and prone to rupture has a thin fibrous cap with reduced extracellular matrix.

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