1. Articles mentioning both Jurgen M. Ligthart and Erasmus University

    1-24 of 47 1 2 »
    1. The Effect of Stent Artefact on Quantification of Plaque Features Using Optical Coherence Tomography (OCT): A Feasibility and Clinical Utility Study

      The Effect of Stent Artefact on Quantification of Plaque Features Using Optical Coherence Tomography (OCT): A Feasibility and Clinical Utility Study
      Background Optical coherence tomography (OCT) can detect detailed plaque features in native coronary arteries. Stent struts cause shadows that partially obscure the vessel wall, but plaque features can still be seen. We investigated the impact of stent artefact on plaque quantification and whether the plaque behind struts is associated with microvascular dysfunction. Methods Patients retrospectively recruited from two centres, underwent OCT pre- and post-stenting on the same vessel segment. Lipid ...
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    2. EuroIntervention Automated characterisation of lipid core plaques in vivo by quantitative optical coherence tomography tissue type imaging

      EuroIntervention Automated characterisation of lipid core plaques in vivo by quantitative optical coherence tomography tissue type imaging
      Aims: Qualitative criteria for plaque tissue characterisation by OCT are well established, but quantitative methods lack systematic validation in vivo . High optical attenuation coefficient t has been associated with unstable plaque features, such as lipid core. The purpose of this study was to validate optical coherence tomography (OCT) attenuation imaging for tissue characterisation in vivo , specifically to detect lipid core in coronary atherosclerotic plaques, and to evaluate quantitatively the ability ...
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    3. Everolimus-Eluting Bioresorbable Vascular Scaffolds implanted in Coronary Bifurcation Lesions

      Everolimus-Eluting Bioresorbable Vascular Scaffolds implanted in Coronary Bifurcation Lesions
      Background Limited data are available on bioresorbable vascular scaffolds (BVS) performance in bifurcations lesions and on the impact of BVS wider struts on side-branch impairment. Methods Patients with at least one coronary bifurcation lesion involving a side-branch 2 mm in diameter and treated with at least one BVS were examined. Procedural and angiographic data were collected and a dedicated methodology for off-line quantitative coronary angiography (QCA) in bifurcation was applied ...
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    4. Safety of optical coherence tomography in daily practice: a comparison with intravascular ultrasound

      Safety of optical coherence tomography in daily practice: a comparison with intravascular ultrasound
      Aims Previous studies have reported the safety and feasibility of both time-domain optical coherence tomography (TD-OCT) and Fourier-domain OCT (FD-OCT) in highly selected patients and clinical settings. However, the generalizability of these data is limited, and data in unselected patient populations reflecting a routine cathlab practice are lacking. We compared safety of intracoronary FD-OCT imaging to intravascular ultrasound (IVUS) imaging in a large real-world series of consecutive patients who underwent ...
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    5. Bioresorbable vascular scaffold treatment induces the formation of neointimal cap that seals the underlying plaque without compromising the luminal dimensions: a concept based on serial optical coherence tomography data

      Bioresorbable vascular scaffold treatment induces the formation of neointimal cap that seals the underlying plaque without compromising the luminal dimensions: a concept based on serial optical coherence tomography data
      Aims: To evaluate the implications of an Absorb bioresorbable vascular scaffold (Absorb BVS) on the morphology of the superficial plaques. Methods and results: Forty-six patients who underwent Absorb BVS implantation and 20 patients implanted with bare metal stents (BMS) who had serial optical coherence tomographic examination at baseline and follow-up were included in this analysis. The thin-capped fibroatheromas (TCFA) were identified in the device implantation regions and in the adjacent ...
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    6. An Unusual Complication After Bioresorbable Scaffold Implantation Visualization of Intramural Hematoma by Optical Coherence Tomography

      An Unusual Complication After Bioresorbable Scaffold Implantation Visualization of Intramural Hematoma by Optical Coherence Tomography
      A 68-year-old man was treated in our catheterization laboratory for ST-segment elevation myocardial infarction. He had undergone 3.5 18-mm bioresorbable vascular scaffold (BVS) implantation in the proximal left anterior descending coronary artery for stable angina in another institution 2 days before. At presentation, angiography showed a filling defect located 5 mm distally to the scaffolded segment ( Figure 1A ). An attempt at thrombus aspiration was performed, without retrieving any aspiration ...
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    7. Utility of Optical Coherence Tomography Imaging with Angiographic Co-registration for the Guidance of Percutaneous Coronary Intervention

      Utility of Optical Coherence Tomography Imaging with Angiographic Co-registration for the Guidance of Percutaneous Coronary Intervention
      Intracoronary optical coherence tomography (OCT) is a light-based imaging modality able to visualise with high resolution (~10 m) the vascular morphology and the acute and chronic effects of intervention with intracoronary devices. 1,2 OCT could therefore find application in the guidance of percutaneous coronary intervention (PCI), allowing a thorough preprocedural lesion assessment, which enables accurate device sizing, selection of the vessel segment requiring treatment, and, thus, efficient planning of ...
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    8. Multimodality Intra-Arterial Imaging Assessment of the Vascular Trauma Induced by Balloon-Based and Nonballoon-Based Renal Denervation Systems

      Multimodality Intra-Arterial Imaging Assessment of the Vascular Trauma Induced by Balloon-Based and Nonballoon-Based Renal Denervation Systems
      Background Renal denervation is a new treatment considered for several possible indications. As new systems are introduced, the incidence of acute renal artery wall injury with relation to the denervation method is unknown. We investigated the acute repercussion of renal denervation on the renal arteries of patients treated with balloon-based and nonballoon-based denervation systems by quantitative angiography, intravascular ultrasound, and optical coherence tomography (OCT). Methods and Results Twenty-five patients (50 ...
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    9. Bioresorbable vascular scaffold treatment induces the formation of neointimal cap that seals the underlying plaque without compromising the luminal dimensions: a concept based on serial optical coherence tomography data

      Bioresorbable vascular scaffold treatment induces the formation of neointimal cap that seals the underlying plaque without compromising the luminal dimensions: a concept based on serial optical coherence tomography data
      Aims: To evaluate the implications of an Absorb bioresorbable vascular scaffold (Absorb BVS) on the morphology of the superficial plaques. Methods and results: Forty-six patients who underwent Absorb BVS implantation and 20 patients implanted with bare metal stents (BMS) who had serial optical coherence tomographic examination at baseline and follow-up were included in this analysis. The thin-capped fibroatheromas (TCFA) were identified in the device implantation regions and in the adjacent ...
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    10. 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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    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
      ...tomography Bioresorbable vascular scaffold Motion artefact Department of Cardiology, Thoraxcenter, BA-585, Erasmus University Medical Center, ‘s-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands Division of Expe...
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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. Three-dimensional optical coherence tomography for guidance of complex percutaneous coronary interventions

      Three-dimensional optical coherence tomography for guidance of complex percutaneous coronary interventions
      Angiographic, Optical Coherence Tomography (OCT) and 3-Dimensional OCT Appearance of the Treated Vessel Pre- (upper panel) and post- (lower panel) intervention (mid panel). Although the angiographic images remained substantially unchanged there was a remarkable improvement (normalization) of the fractional flow reserve measurements after optimization of the stents geometry.
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    14. Optical coherence tomography for evaluation of coronary stents in vivo

      Optical coherence tomography for evaluation of coronary stents in vivo
      Coronary optical coherence tomography (OCT) is a light-based imaging modality that emits light in the near-infrared range. Compared with intravascular ultrasound, OCT has an extraordinarily high resolution (nearly tenfold higher), with an axial resolution in the range of 1215 m and a lateral resolution of 2040 m. The main drawback of OCT is its relatively low penetration power, especially into lipid-rich atherosclerotic tissue. Second-generation OCT systems, known as frequency domain ...
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    15. Association of neointimal morphology by optical coherence tomography with rupture of neoatherosclerotic plaque very late after coronary stent implantation.

      Association of neointimal morphology by optical coherence tomography with rupture of neoatherosclerotic plaque very late after coronary stent implantation.
      ...y with rupture of neoatherosclerotic plaque very late after coronary stent implantation. Antonios Karanasos ; Jurgen Ligthart ; Karen Witberg ; Konstantinos Toutouzas ; Joost Daemen ; Gijs van Soest ; Muthukaruppan Gnana...
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    16. In-stent neoatherosclerosis: are first generation drug eluting stents different than bare metal stents? an optical coherence tomography study

      In-stent neoatherosclerosis: are first generation drug eluting stents different than bare metal stents? an optical coherence tomography study
      ... different than bare metal stents? an optical coherence tomography study Antonios Karanasos ; Karen Witberg ; Jurgen Ligthart ; Konstantinos Toutouzas ; Joost Daemen ; Gijs van Soest ; Muthukaruppan Gnanadesigan ; Nichol...
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    17. Feature Of The Week 11/11/12: Characterization of Coronary Bifurcations using Optical Coherence Tomography

      Feature Of The Week 11/11/12: Characterization of Coronary Bifurcations using Optical Coherence Tomography
      Correct characterization of coronary bifurcations by optical coherence tomography (OCT) is critical in the evaluation of lesions, dedicated bifurcation stents and stent techniques. Assessment is limited by the need for acquiring images in both the main branch (MB) and the dissection prone side branch (SB). Analysis poses the significant risk of OCT cross sections not being perpendicular to the true vessel centerline due to imaging wires being non-parallel to the ...
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    18. In vivo comparison of arterial lumen dimensions assessed by co-registered three-dimensional (3D) quantitative coronary angiography, intravascular ultrasound and optical coherence tomography

      In vivo comparison of arterial lumen dimensions assessed by co-registered three-dimensional (3D) quantitative coronary angiography, intravascular ultrasound and optical coherence tomography
      This study sought to compare lumen dimensions as assessed by 3D quantitative coronary angiography (QCA) and by intravascular ultrasound (IVUS) or optical coherence tomography (OCT), and to assess the association of the discrepancy with vessel curvature. Coronary lumen dimensions often show discrepancies when assessed by X-ray angiography and by IVUS or OCT. One source of error concerns a possible mismatch in the selection of corresponding regions for the comparison. Therefore ...
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    19. Five-Year Optical Coherence Tomography Follow-Up of an Everolimus-Eluting Bioresorbable Vascular Scaffold: Changing the Paradigm of Coronary Stenting?

      Five-Year Optical Coherence Tomography Follow-Up of an Everolimus-Eluting Bioresorbable Vascular Scaffold: Changing the Paradigm of Coronary Stenting?
      ...ijlstra, MD, PhD; 9. Evelyn Regar, MD, PhD 1. From the Department of Interventional Cardiology, Thoraxcentre, Erasmus University Medical Centre, Rotterdam, The Netherlands. 1. Correspondence to Evelyn Regar, MD, PhD, Dep...
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    20. 1-24 of 47 1 2 »
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  2. Organizations in the News

    1. (5 articles) Leiden University
    2. (2 articles) Academic Medical Center at the University of Amsterdam
    3. (2 articles) Massachusetts General Hospital
    4. (2 articles) Harvard University
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    1. (40 articles) Evelyn Regar
    2. (16 articles) Patrick W. Serruys
    3. (16 articles) Karen T. Witberg
    4. (14 articles) Antonios Karanasos
    5. (13 articles) Hector M. Garcia-Garcia
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    1. (13 articles) Abbot
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