1. Francesco Prati

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    1. Mentioned In 85 Articles

    2. Reproducibility of serial optical coherence tomography measurements for lumen area and plaque components in humans (The CLI-VAR [Centro per la Lotta Contro l’Infarto-variability] II study)

      Reproducibility of serial optical coherence tomography measurements for lumen area and plaque components in humans (The CLI-VAR [Centro per la Lotta Contro l’Infarto-variability] II study)
      Frequency-domain optical coherence tomography (FD-OCT) is a promising intracoronary imaging technique to study atherosclerosis. Indeed, its unprecedented spatial resolution allows the assessment of fibrous cap thickness, lipid pool and features of plaque vulnerability. Aim of this study was to determine the reproducibility of the in vivo FD-OCT measurements of lumen area and plaque components in serial studies. Twenty-six patients undergoing FD-OCT assessment of intermediate lesion during coronary angiography were included ...
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      Mentions: Francesco Prati
    3. Clinical Impact of OCT Findings During PCI: The CLI-OPCI II Study

      Clinical Impact of OCT Findings During PCI: The CLI-OPCI II Study
      Objectives The goal of this study was to assess the clinical impact of optical coherence tomography (OCT) findings during percutaneous coronary intervention (PCI). Background OCT provides unprecedented high-definition visualization of plaque/stent structures during PCI; however, the impact of OCT findings on outcome remains undefined. Methods In the context of the multicenter CLI-OPCI (Centro per la Lotta contro lInfartoOptimisation of Percutaneous Coronary Intervention) registry, we retrospectively analyzed patients undergoing end-procedural ...
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    4. Comparative analysis method of permanent metallic stents (XIENCE) and bioresorbable poly-L-lactic (PLLA) scaffolds (Absorb) on optical coherence tomography at baseline and follow-up

      Comparative analysis method of permanent metallic stents (XIENCE) and bioresorbable poly-L-lactic (PLLA) scaffolds (Absorb) on optical coherence tomography at baseline and follow-up
      Aims: Fully bioresorbable Absorb poly-L-lactic-acid (PLLA) scaffolds (Abbott Vascular, Santa Clara, CA, USA) are a novel approach for the treatment of coronary narrowing. Due to the translucency of the material (PLLA), the optical coherence tomography (OCT) measurement methods used in the ABSORB trials were unique but not applicable for permanent metallic stents. When the Absorb scaffold and metallic stents are compared in the context of randomised trials, it is challenging ...
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    5. Optical Coherence Tomography for Characterization of Cardiac Allograft Vasculopathy in Late Survivors of Pediatric Heart Transplantation

      Optical Coherence Tomography for Characterization of Cardiac Allograft Vasculopathy in Late Survivors of Pediatric Heart Transplantation
      Background Optical coherence tomography (OCT) has been shown to reliably detect cardiac allograft vasculopathy (CAV). In recent studies performed in adult heart transplant (HTx) recipients, OCT revealed the presence of vulnerable plaques and complicated coronary artery lesions, thus challenging the current concept that CAV disease is a diffuse concentric and fibrosing vasculopathy. The aim of our study was to characterize CAV by OCT in a young population of HTx recipients ...
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      Mentions: Francesco Prati
    6. Comparison between intermediate and severe coronary stenoses and clinical outcomes of an OCT-guided PCI strategy

      Comparison between intermediate and severe coronary stenoses and clinical outcomes of an OCT-guided PCI strategy
      Aims: We compared optical coherence tomography (OCT) features of intermediate and severe coronary stenoses in patients with stable angina and acute coronary syndrome (ACS), and tested the clinical impact of an OCT-based strategy for treating intermediate stenoses. Methods: The study enrolled 135 consecutive patients with either ACS or stable angina and a single de-novo coronary stenosis. Patients were divided into two groups: intermediate stenosis defined as quantitative coronary angiography percentage ...
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      Mentions: Francesco Prati
    7. Serial optical coherence tomography imaging of ACS-causing culprit plaques

      Serial optical coherence tomography imaging of ACS-causing culprit plaques
      Aims: The aim of this study was to understand better the mechanisms of repair of plaque complications causing acute coronary syndrome. Methods and results: We used OCT in the acute phase and at follow-up (one to seven months) to investigate the plaque healing in 10 culprit plaques: five ruptured fibrous cap (RFC) and five intact fibrous cap (IFC) which were not treated with stent deployment and caused ST-segment elevation myocardial ...
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    8. Error propagation in the characterization of atheromatic plaque types based on imaging

      Error propagation in the characterization of atheromatic plaque types based on imaging
      Imaging systems transmit and acquire signals and are subject to errors including: error sources, signal variations or possible calibration errors. These errors are included in all imaging systems for atherosclerosis and are propagated to methodologies implemented for the segmentation and characterization of atherosclerotic plaque. In this paper, we present a study for the propagation of imaging errors and image segmentation errors in plaque characterization methods applied to 2D vascular images ...
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    9. Optical Coherence Tomography for the Assessment of Coronary Artery Disease

      Optical Coherence Tomography for the Assessment of Coronary Artery Disease
      Angiography remains the gold standard for assessment of atherosclerotic impairment of coronary arteries and for guidance of coronary intervention. Angiography, as a main limitation, only depicts the luminal narrowings caused by coronary plaques, without showing the structures located beneath, such as the atherosclerotic lesions or the vessel wall. Intravascular imaging modalities are currently adopted to circumvent angiographic limitations. Optical coherence tomography (OCT)) is a novel imaging technique that uses infrared ...
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      Mentions: Francesco Prati
    10. Impact of drug-eluting balloon (pre- or post-) dilation on neointima formation in de novo lesions treated by bare-metal stent: the IN-PACT CORO trial

      Impact of drug-eluting balloon (pre- or post-) dilation on neointima formation in de novo lesions treated by bare-metal stent: the IN-PACT CORO trial
      The efficacy of DEB in modifying the high restenosis risk associated with BMS implantation is doubtful. Optical coherence tomography (OCT) may allow precise assessment of neointimal formation after stent implantation. We performed a single-center, prospective, 1:2 randomized trial comparing BMS implantation alone (BMS group) vs. additional DEB (DEB group). DEB patients were further randomized 1:1 to DEB before stenting (pre-DEB group), or after stenting (post-DEB group). Primary endpoint ...
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      Mentions: Francesco Prati
    11. New techniques of intravessel imaging in coronary atherosclerosis

      New techniques of intravessel imaging in coronary atherosclerosis
      Intravascular imaging modalities are currently adopted to circumvent angiographic limitations. The present overview is aimed at describing the principal techniques used by an interventional cardiologist to assess both coronary atherosclerotic plaques and stent deployment results. Optical coherence tomography (OCT), intravascular ultrasound (IVUS), and near-infrared spectroscopy are currently available to address these issues. These techniques are characterized by specific advantages and limitations, making each of those applicable for specific purposes. Offline ...
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      Mentions: Francesco Prati
    12. Optical coherence tomography features of angiographic complex and smooth lesions in acute coronary syndromes

      Optical coherence tomography features of angiographic complex and smooth lesions in acute coronary syndromes
      Plaque rupture (PR) and superimposed thrombosis have been shown as the most frequent underlying substrate in acute coronary syndromes (ACS). Coronary angiography is a luminogram not able to define in vivo features of the culprit plaques. The aim of the study was to use optical coherence tomography (OCT) to investigate the pathology underlying complex (CL) and non-complex angiographic lesions (NCL). We retrospectively enrolled 107 ACS patients admitted to our institution ...
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    13. Plaque rupture and intact fibrous cap assessed by optical coherence tomography portend different outcomes in patients with acute coronary syndrome

      Plaque rupture and intact fibrous cap assessed by optical coherence tomography portend different outcomes in patients with acute coronary syndrome
      Aims Patients presenting with acute coronary syndrome (ACS) may have different plaque morphologies at the culprit lesion. In particular, plaque rupture (PR) has been shown as the more frequent culprit plaque morphology in ACS. However, its prognostic value is still unknown. In this study, we evaluated the prognostic value of PR, compared with intact fibrous cap (IFC), in patients with ACS. Methods and results We enrolled consecutive patients admitted to ...
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      Mentions: Francesco Prati
    14. Comparison of Strut Coverage at Six Months by Optical Coherence Tomography with Everolimus Eluting Stent or Bare-Metal Stent Restenosis –vs- Stenosis of Non-Stented Atherosclerotic Narrowing (from the DESERT Study)

      Comparison of Strut Coverage at Six Months by Optical Coherence Tomography with Everolimus Eluting Stent or Bare-Metal Stent Restenosis –vs- Stenosis of Non-Stented Atherosclerotic Narrowing (from the DESERT Study)
      Incomplete struts coverage is a predictor of late stent thrombosis after drug eluting stent (DES) implantation in atherosclerotic lesions. The process of struts coverage in DES implanted for bare-metal stent (BMS) restenosis has never been described. Thirty-two patients with stable coronary artery disease were consecutively selected, 11 with BMS restenosis (group A) and 21 with de-novo atherosclerotic lesions (group B). All patients underwent everolimus eluting stent implantation; coronary angiography and ...
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    15. Optical Coherence Tomography Assessment and Quantification of Intracoronary Thrombus: Status and Perspectives

      Optical Coherence Tomography Assessment and Quantification of Intracoronary Thrombus: Status and Perspectives
      Coronary angiography is the golden standard imaging technique in interventional cardiology and it is still widely used to guide interventions. A major drawback of this technique, however, is that it is inaccurate in the evaluation and quantification of intracoronary thrombus burden, a critical prognosticator and predictor of intraprocedural complications in acute coronary syndromes. The introduction of optical coherence tomography (OCT) holds the promise of overcoming this important limitation, as near-infrared ...
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      Mentions: Francesco Prati
    16. Identification and quantification of macrophage presence in coronary atherosclerotic plaques by optical coherence tomography

      Identification and quantification of macrophage presence in coronary atherosclerotic plaques by optical coherence tomography
      Aims Vulnerable plaques are characterized by a high macrophage content. We investigated the optical coherence tomography (OCT) capability of identifying coronary plaque macrophage presence using tissue property indexes. Methods and results Fifteen epicardial coronary arteries were imaged by OCT and subsequently analysed by histology. Correlating OCThistological sections were identified and regions of interest (ROIs) were selected on both atherosclerotic plaques and normal appearing vessel tracts. OCT-derived tissue property indexes named ...
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      Mentions: Francesco Prati
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  2. About Francesco Prati

    Francesco Prati, MD, is from the San Giovanni-Addolorata Hospital in Rome.

  3. Quotes

    1. The technique allows high-resolution arterial-wall imaging in the range of 10-20 microns, allowing penetrance into the arterial wall and visualisation of specific components of the atherosclerotic plaques, including calcification, fibrotic tissue, necrotic lipid pools and thrombotic components.
      In In search of the thrombosis-prone vulnerable plaque