1. 1-5 of 5
    1. Second-generation drug-eluting absorbable metal scaffold target-lesion revascularization: an optical coherence tomography case series study and literature review

      Second-generation drug-eluting absorbable metal scaffold target-lesion revascularization: an optical coherence tomography case series study and literature review

      Bioresorbable scaffolds (BRS) were introduced into clinical practice to overcome long-term limitations of drug-eluting stents (DES), but they were instead associated with a high rate of target lesion revascularization (TLR) and thrombosis. Whereas scaffold discontinuity was the most frequent mechanism for polymeric-BRS TLR1, there are no studies on the causes of second-generation drug-eluting absorbable metal scaffold (MgBRS) TLR (Magmaris, BIOTRONIK, Bulach, Switzerland). We sought to determine the optical coherence tomography (OCT) findings in patients who experienced a MgBRS TLR. Moreover, we performed a systematic review of the reported cases. 

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    2. Intracoronary imaging for the diagnosis of the underlying substrate and clinical management of acute coronary syndromes: from evidence to expert consensus … and back!

      Intracoronary imaging for the diagnosis of the underlying substrate and clinical management of acute coronary syndromes: from evidence to expert consensus … and back!

      ntracoronary imaging (ICI) has matured into a well-established clinical and research tool for patients with coronary artery disease (CAD). Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are now widely accepted for the assessment of lesion morphology in patients presenting with acute coronary syndromes (ACS). The large body of evidence gathered on the clinical value of these techniques cannot be summarised in a conventional clinical practice guideline format. Accordingly, a recent expert consensus document on the importance of ICI to guide coronary interventions 1 has now been followed by another expert consensus detailing the value of these techniques to unravel ...

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    3. Clinical use of intracoronary imaging. Part 2: acute coronary syndromes, ambiguous coronary angiography findings, and guiding interventional decision-making: an expert consensus document of the European Association of Percutaneous Cardiovascular Intervent

      Clinical use of intracoronary imaging. Part 2: acute coronary syndromes, ambiguous coronary angiography findings, and guiding interventional decision-making: an expert consensus document of the European Association of Percutaneous Cardiovascular Intervent

      This consensus document is the second of two reports summarizing the views of an expert panel organized by the European Association of Percutaneous Cardiovascular Interventions (EAPCI) on the clinical use of intracoronary imaging including intravascular ultrasound (IVUS), optical coherence tomography (OCT), and near infrared spectroscopy (NIRS)-IVUS. Beyond guidance of stent selection and optimization of deployment, invasive imaging facilitates angiographic interpretation and may guide treatment in acute coronary syndrome. Intravascular imaging can provide additional important diagnostic information when confronted with angiographically ambiguous lesions and allows assessment of plaque morphology enabling identification of vulnerability characteristics. This second document focuses on useful ...

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    4. In-Stent Restenosis Lesion Morphology Related to Repeat Stenting Underexpansion as Evaluated by Optical Coherence Tomography

      In-Stent Restenosis Lesion Morphology Related to Repeat Stenting Underexpansion as Evaluated by Optical Coherence Tomography

      Aims: To use optical coherence tomography (OCT) to predict newly implanted stent expansion for treatment of in-stent restenosis (ISR). Methods and results: With OCT-guidance, 143 ISR lesions were treated with a new stent. Stent underexpansion was defined as minimum stent area (MSA) <4.5mm 2 and MSA/average of reference lumen area <70%. New stent underexpansion was found in 33 lesions (23%), had a smaller old stent MSA (4.13 [3.32-4.62] versus 5.18 [4.01-6.38] mm 2 , p=0.001), and had a higher prevalence of multiple old stent layers (51.5% versus 10.9%, p ...

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    5. Diagnostic accuracy of intracoronary optical coherence tomography-derived fractional flow reserve for assessment of coronary stenosis severity

      Diagnostic accuracy of intracoronary optical coherence tomography-derived fractional flow reserve for assessment of coronary stenosis severity

      ims: A novel method for computation of fractional flow reserve (FFR) from optical coherence tomography (OCT) was developed recently. This study aimed to evaluate the diagnostic accuracy of a new OCT-based FFR (OFR) computational approach, using wire-based FFR as the reference standard. Methods and results: Patients who underwent both OCT and FFR prior to intervention were analysed. The lumen of the interrogated vessel and the ostia of the side branches were automatically delineated and used to compute OFR. Bifurcation fractal laws were applied to correct the change in reference lumen size due to the step-down phenomenon. OFR was compared with ...

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    1-5 of 5
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