[Progress in application of intravascular ultrasound in lower extremity artery disease]

Accurately assessing the characteristics of lower extremity arterial lesions plays an important role in guiding endovascular therapy. Intravascular ultrasound (IVUS) has attracted more and more attention as a choice for the assessment of extremity arterial diseases. IVUS can accurately assess vessel size, lesion morphology, lesion composition and dissection to guide endovascular therapy selection and predict restenosis. IVUS has advantages over "gold standard" digital subtraction angiography in the evaluation of geometric features and composition of lesions. The use of IVUS has been shown to improve diagnostic accuracy of lower extremity arterial diseases, thereby improving treatment outcomes.准确地评估下肢动脉病变特点对于指导腔内治疗有重要作用，血管内超声作为一种下肢动脉疾病评估技术备受关注。血管内超声可准确评估血管尺寸、病变的形态和性质、动脉夹层累及范围，从而指导腔内治疗方式的选择，以及预测病变再狭窄的发生概率。与作为金标准的数字减影血管造影相比，血管内超声在评估病变几何特征和性质方面具有优势。血管内超声的使用已被证明可提高诊断下肢动脉疾病的准确率，从而改善治疗结局。.