2022年8月13日 · 血管内超声（Intravascular ultrasound，IVUS）是一种血管内的成像方式，可用于各类介入学科，以表征病变形态、量化斑块负荷、指导器械尺寸选择、评估器械植入以及识别并发症。 IVUS作为斑块诊断最常用的成像技术，可提供分辨率约为100微米，成像深度约为7毫米的血管横截面结构图像， 但无法显示与斑块易损性相关的微观特征，譬如新生血管、巨噬细胞聚集和薄纤维帽等。 IVUS在经皮冠状动脉介入 ( percutaneous coronary intervention,PCI)手术中可 …

2016年6月13日 · During PCI, IVUS can be used to select stent size, identify optimal proximal and distal stent edge landing zones and select stent length using motorized transducer pullback to measure the distance between the proximal and distal landing zones, and determine whether to cover the aorto-ostial junction when stenting an LMCA or proximal right ...

2023年3月5日 · Percutaneous coronary intervention (PCI) with the use of second-generation drug-eluting stents has markedly reduced the rates of stent-related or...

2022年5月11日 · The use of intravascular ultrasound (IVUS) as an adjunct to angiography provides several advantages when performing percutaneous coronary interventions (PCI), including more accurate vessel sizing, improved stent expansion and larger minimum stent lumen area, better strut apposition, and the rapid identification of PCI-related complications. 1 ...

IVUS is a sound-based adjunctive imaging modality that employs the use of an intravascular catheter mounted with a piezoelectric crystalline transducer to generate ultrasound pulses to provide real-time 360° cross-sectional images.

IVUS when compared to coronary angioscopy, NIRS-IVUS, VH-IVUS and OCT, provides insights not only in the understanding of coronary atherosclerosis but also in the optimal way it can be treated with PCI. In this review, we will specifically look at the usefulness of IVUS in PCI of complex coronary lesions. IVUS in PCI of left main stem lesions

2020年1月15日 · Intravascular ultrasound (IVUS) is a catheter-based invasive imaging modality that has become an essential adjunctive tool to percutaneous coronary intervention (PCI) over the past 20 years. Clinical applications of IVUS in PCI include assessment of ...

2024年12月11日 · Background: Intravascular ultrasound (IVUS) guidance during percutaneous coronary intervention (PCI) allows better assessment of coronary artery lesion characteristics than angiography alone. This systematic review and meta-analysis aimed to comprehensively synthesize the available evidence regarding the efficacy of IVUS guidance compared to ...

在血管造影指导的pci组，若需治疗左主干病变可使用ivus。 主要终点为中位随访期满2年时MACE事件发生率（死亡、靶病变心肌梗死和缺血驱动的靶病变血运重建的复合终点），OCT指导组和血管造影指导组的MACE事件发生率分别为10.1%、14.1%。

2021年11月26日 · IVUS 在经皮冠状动脉介入（percutaneous coronary intervention， PCI）手术中可起到重要的辅助决策作用，包括术前评估及术后优化。 PCI 术前， IVUS 主要用于评估斑块性质和特点，制定合适的预处理策略，测量病变长度和参 考段血管直径，选择合适的支架直径、长度 …