1. Evelyn Regar

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    1. Mentioned In 151 Articles

    2. Early and late optical coherence tomography findings following everolimus-eluting bioresorbable vascular scaffold implantation in myocardial infarction: a preliminary report

      Early and late optical coherence tomography findings following everolimus-eluting bioresorbable vascular scaffold implantation in myocardial infarction: a preliminary report
      Introduction: Although bioresorbable vascular scaffolds (BVS) have been used with promising results in patients with stable and unstable angina, little is known about the acute vascular response following BVS implantation in myocardial infarction. We present angiographic and OCT findings from the first patients undergoing bioresorbable vascular scaffold (BVS) implantation for non-ST-elevation myocardial infarction (NSTEMI) or ST-elevation myocardial infarction (STEMI) in our institution. Methods: The first 5 patients with NSTEMI and ...
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    3. Quantification of fibrous cap thickness in intracoronary optical coherence tomography with a contour segmentation method based on dynamic programming

      Quantification of fibrous cap thickness in intracoronary optical coherence tomography with a contour segmentation method based on dynamic programming
      Objectives Fibrous cap thickness is the most critical component of plaque stability. Therefore, in vivo quantification of cap thickness could yield valuable information for estimating the risk of plaque rupture. In the context of preoperative planning and perioperative decision making, intracoronary optical coherence tomography imaging can provide a very detailed characterization of the arterial wall structure. However, visual interpretation of the images is laborious, subject to variability, and therefore not ...
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    4. Optical coherence tomography appraisal of residual thrombus burden in patients with ST-segment elevation myocardial infarction undergoing intraprocedural versus post-stenting prolonged bivalirudin infusion. Rationale and design of the MATRIX (Minimizing A

      Optical coherence tomography appraisal of residual thrombus burden in patients with ST-segment elevation myocardial infarction undergoing intraprocedural versus post-stenting prolonged bivalirudin infusion. Rationale and design of the MATRIX (Minimizing A
      Aims: Residual thrombus accumulation around stent struts has been observed after the end of primary PCI and may represent a risk factor for acute stent thrombosis. The aim of this study is to test whether a strategy of prolonged bivalirudin infusion may reduce thrombosis of stent struts as compared to an intraprocedural only administration in subjects undergoing primary PCI. Methods and results: One hundred and sixty patients will be selected ...
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    5. OCT Assessment of the Long-Term Vascular Healing Response 5 Years After Everolimus-Eluting Bioresorbable Vascular Scaffold

      OCT Assessment of the Long-Term Vascular Healing Response 5 Years After Everolimus-Eluting Bioresorbable Vascular Scaffold
      Background Although recent observations suggest a favorable initial healing process of the everolimus-eluting bioresorbable vascular scaffold (BVS), little is known regarding long-term healing response. Objectives This study assessed the in vivo vascular healing response using optical coherence tomography (OCT) 5 years after elective first-in-man BVS implantation. Methods Of the 14 living patients enrolled in the Thoraxcenter Rotterdam cohort of the ABSORB A study, 8 patients underwent invasive follow-up, including OCT ...
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    6. Is it safe to implant bioresorbable scaffolds in ostial side-branch lesions? Impact of ‘neo-carina’ formation on main-branch flow pattern. Longitudinal clinical observations

      Is it safe to implant bioresorbable scaffolds in ostial side-branch lesions? Impact of ‘neo-carina’ formation on main-branch flow pattern. Longitudinal clinical observations
      Formation of a neo-carina has been reported after bioresorbable vascular scaffolds (BVS) implantation over side-branches. However, as this neo-carina could protrude into the main-branch, its hemodynamic impact remains unknown. We present two cases of BVS implantation for ostial side-branch lesions, and investigate the flow patterns at follow-up and their potential impact. Computational fluid dynamics analysis was performed, using a 3D mesh created by fusion of 3-dimensional angiogram with optical coherence ...
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    7. Long-term invasive follow-up of the everolimus-eluting bioresorbable vascular scaffold: five-year results of multiple invasive imaging modalities

      Long-term invasive follow-up of the everolimus-eluting bioresorbable vascular scaffold: five-year results of multiple invasive imaging modalities
      Aims: The Paradise Ultrasound Renal Denervation System is a next-generation catheter-based device which was used to investigate whether the target ablation area can be controlled by changing ultrasound energy and duration to optimise nerve injury while preventing damage to the arterial wall. Methods and results: Five ultrasound doses were tested in a thermal gel model. Catheter-based ultrasound denervation was performed in 15 swine (29 renal arteries) to evaluate five different ...
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    8. A novel method to assess coronary artery bifurcations by OCT: cut-plane analysis for side-branch ostial assessment from a main-vessel pullback

      A novel method to assess coronary artery bifurcations by OCT: cut-plane analysis for side-branch ostial assessment from a main-vessel pullback
      Aims In coronary bifurcations assessment, evaluation of side-branch (SB) ostia by an optical coherence tomography (OCT) pullback performed in the main branch (MB) could speed up lesion evaluation and minimize contrast volume. Dedicated software that reconstructs the cross-sections perpendicular to the SB centreline could improve this assessment. We aimed to validate a new method for assessing the SB ostium from an OCT pullback performed in the MB. Methods and results ...
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    9. Optical Coherence Tomography (OCT) Before and After Flowdiverter Treatment in Basilar Dolichoectasia.

      Optical Coherence Tomography (OCT) Before and After Flowdiverter Treatment in Basilar Dolichoectasia.
      Optical Coherence Tomography (OCT) is an endovascular imaging modality that utilises infrared light to create high-resolution images of the vascular system. The use of OCT in cardiology is widely accepted and considered safe for imaging of the coronary artery wall, plaques and assessment of stent deployment. In the literature to date, OCT has not been used in endovascular imaging of neurovascular pathology. In this report we describe the first case ...
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    10. Intracoronary thrombus on optical coherence tomography in a patient with variant angina; treatment and follow-up

      Intracoronary thrombus on optical coherence tomography in a patient with variant angina; treatment and follow-up
      Variant angina is caused by transient and recurrent coronary spasm leading to episodes of transmural myocardial ischemia with ST segment elevation. Neurological, humoral and local factors have been proposed, and endothelial dysfunction are important predisposing factors 1 . However, intravascular ultrasound studies have shown that atherosclerosis is invariably present at site of focal vasospasm 2 . Intravascular optical coherence tomography (OCT) is a high-resolution imaging method for plaque characterization and detection of ...
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      Mentions: Evelyn Regar
    11. The impact of Fourier-Domain optical coherence tomography catheter induced motion artefacts on quantitative measurements of a PLLA-based bioresorbable scaffold

      The impact of Fourier-Domain optical coherence tomography catheter induced motion artefacts on quantitative measurements of a PLLA-based bioresorbable scaffold
      Intracoronary Fourier-Domain optical coherence tomography (FD-OCT) enables imaging of the coronary artery within 2-4 seconds, a so far unparalleled speed. Despite such fast data acquisition, cardiac and respiratory motion can cause artefacts due to longitudinal displacement of the catheter within the artery. We studied the influence of longitudinal FD-OCT catheter displacement on serial global lumen and scaffold area measurements in coronary arteries of swine that received PLLA-based bioresorbable scaffolds. In ...
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    12. Optical Coherence Tomography-guided Bifurcation Stenting of a Coronary Artery Dissection

      Optical Coherence Tomography-guided Bifurcation Stenting of a Coronary Artery Dissection
      Periprocedural guide-wire induced coronary artery dissection is a rare but potentially serious complication of PCI. Immediate stenting of the entry point is one of the therapeutic options but engaging the guide-wire in the true lumen may be challenging. We report a case of a 55-year-old woman with a guide-wire induced coronary dissection that occurred during treatment of a bifurcation lesion. Optical coherence tomography was instrumental to distinguish true form false ...
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    13. Effect of temperature and fixation on the optical properties of atherosclerotic tissue: a validation study of an ex-vivo whole heart cadaveric model

      Effect of temperature and fixation on the optical properties of atherosclerotic tissue: a validation study of an ex-vivo whole heart cadaveric model
      ...,^1 Stephen White,^2 Simon Scoltock,^2 Giovanni J Ughi,^4 Andreas Baumbach,^2 Antonius FW van der Steen,^1,^3 Evelyn Regar,^1 and Thomas W Johnson^2 ^1Department of Biomedical Engineering, Erasmus Medical Center, PO Bo...
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    14. 31-45 of 151 « 1 2 3 4 5 6 7 8 9 10 »
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  2. About Evelyn Regar

    Evelyn Regar

    Evelyn Regar is a interventional cardiologist at the ThoraxCenter, Erasmus Medical Center in the Netherlands.  Dr. Regar did her preclinical studies at the University of Regensburg, Germany, for two years, before training at the Technical University of Munich. From there, she trained in internal medicine and cardiology at the University Hospital, also in Munich. Since 1999, she works as an interventional cardiologist at the Thoraxcenter and has the post of clinical head of the catheter laboratory.

  3. Quotes

    1. The ILUMIEN system provides me and my colleagues with an easy-to-use, flexible solution that combines OCT and FFR technology on one system... Having these two cutting edge technologies together is a welcome advancement for therapy guidance, allowing me to choose the right tools for each patient situation.
      In St. Jude Medical Announces European Approval of First and Only Combined FFR and OCT System