All Articles from Lulu Li -Optical Coherence Tomography News

Articles from Lulu Li

1-21 of 21
1. A Multicenter RCT of OCT-Guided Reperfusion in STEMI With Early Infarct Artery Patency
  
  Explore ScienceDirect Apr 4 2022 Cardiology
  
  Objectives The aim of this study was to test whether optical coherence tomographic (OCT) guidance would provide additional useful information beyond that obtained by angiography and lead to a shift in reperfusion strategy and improved clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI) with early infarct artery patency. Background Angiography is limited in assessing the underlying pathophysiological mechanisms of the culprit lesion. Methods EROSION III (Optical Coherence Tomography–Guided Reperfusion in ST-Segment Elevation Myocardial Infarction With Early Infarct Artery Patency) is an open-label, prospective, multicenter, randomized, controlled study approved by the ethics committees of participating centers. Patients with ...
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  Mentions: Cardiovascular Research Foundation Capital Medical University Harbin Medical University
2. Optical Coherence Tomographic Features of Pancoronary Plaques in Patients With Acute Myocardial Infarction Caused by Layered Plaque Rupture Versus Layered Plaque Erosion
  
  Explore American Journal of Cardiology Jan 3 2022 Cardiology
  
  Atherosclerotic plaque instability could occur on the basis of healed plaque which has a layered appearance on optical coherence tomography. This study aimed to investigate pancoronary plaque features of layered plaque rupture (LPR) and layered plaque erosion (LPE) in patients with acute myocardial infarction. Among 388 patients with acute myocardial infarction who underwent preintervention optical coherence tomography imaging of three coronary arteries, 190 patients with layered culprit plaque (49.0%) were identified and further divided into 2 groups: LPR group and LPE group. Clinical characteristics, pancoronary plaque features and clinical outcomes were compared between the 2 groups. Patients with LPR ...
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  Mentions: Harbin Medical University
3. Culprit and Non-Culprit Plaque Characteristics With vs. Without a Healed Phenotype in Patients With Acute Myocardial Infarction Caused by Plaque Erosion
  
  Explore jstage.jst.go.jp Dec 28 2021 Cardiology
  
  Background: Plaque erosion can occur quietly without causing clinical symptoms, followed by a healing process resulting in healed plaque. This study aimed to assess culprit and non-culprit plaque characteristics of patients with acute myocardial infarction (AMI) caused by plaque erosion with vs. without healed phenotype at the culprit plaque using optical coherence tomography (OCT).Methods and Results:A total of 117 AMI patients caused by plaque erosion who underwent OCT imaging of 3 coronary arteries were included. Patients were divided into 2 groups based on presence or absence of a healed phenotype at the culprit site. Culprit and non-culprit plaque ...
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  Mentions: Harbin Medical University
4. In vivo evidence of atherosclerotic plaque erosion and healing in patients with acute coronary syndrome using serial optical coherence tomography imaging
  
  Explore ScienceDirect Sep 29 2021 Cardiology
  
  Background: The EROSION study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography-Based Management in Plaque Erosion) allowed us to observe the healing process of coronary plaque erosion in vivo. The present study aimed to investigate the incidence of newly formed healed plaque and different baseline characteristics of acute coronary syndrome (ACS) patients caused by plaque erosion with or without newly formed healed plaque using optical coherence tomography (OCT). Methods: A total of 137 ACS patients with culprit plaque erosion who underwent pre-intervention OCT imaging and received no stent implantation were enrolled. Patients were stratified according to the presence or ...
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  Mentions: Harbin Medical University
5. Focal Geometry and Characteristics of Erosion-Prone Coronary Plaques in vivo Angiography and Optical Coherence Tomography Study
  
  Explore Frontiers Sep 29 2021 Cardiology
  
  Objective: This study compared focal geometry and characteristics of culprit plaque erosion (PE) vs. non-culprit plaques in ST-segment elevated myocardial infarction (STEMI) patients in whom optical coherence tomography (OCT) identified PE as the cause of the acute event. Background: Culprit PE is a distinct clinical entity with specific coronary risk factors and its own tailored management strategy. However, not all plaques develop erosion resulting in occlusive thrombus formation. Methods: Between January 2017 and July 2019, there were 484 STEMI patients in whom OCT at the time of primary percutaneous intervention identified culprit lesion PE to be the cause of the ...
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  Mentions: Cardiovascular Research Foundation Harbin Medical University
6. Persistent Cigarette Smoking Attenuates Plaque Stabilization in Response to Lipid-Lowering Therapy: A Serial Optical Coherence Tomography Study
  
  Explore Frontiers Apr 18 2021 Cardiology
  
  Objective: This study aimed to investigate the effect of smoking on morphological changes in non-culprit plaques in acute coronary syndrome (ACS) patients at 1 year after percutaneous coronary intervention (PCI), using optical coherence tomography (OCT). Background: Cigarette smoking is an important risk factor for coronary artery disease. However, the reasons for the high risk of re-infarction and worsened health among patients who continue to smoke after PCI remain unclear. Methods: A total of 129 non-culprit plaques were identified from 97 ACS patients who underwent OCT imaging at the time of PCI and at 1-year follow-up. Patients were divided into the ...
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  Mentions: Harbin Medical University
7. Predictors of Coronary Plaque Erosion in Current and Non-Current Smokers With ST-Segment Elevation Myocardial Infarction　― An Optical Coherence Tomography Study ―
  
  Explore jstage.jst.go.jp Jan 29 2021 Cardiology
  
  Background: Smoking is an important risk factor of plaque erosion. This study aimed to investigate the predictors of plaque erosion in current and non-current smokers presenting with ST-segment elevation myocardial infarction (STEMI). Methods and Results: A total of 1,320 STEMI patients with culprit plaque rupture or plaque erosion detected by pre-intervention optical coherence tomography were divided into a current smoking group (n=715) and non-current smoking group (n=605). Plaque erosion accounted for 30.8% (220/715) of culprit lesions in the current smokers and 21.2% (128/605) in the non-current smokers. Multivariable analysis showed age <50 years ...
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  Mentions: Harbin Medical University
8. Morphological Characteristics of Eroded Plaques with Noncritical Coronary Stenosis: An Optical Coherence Tomography Study
  
  Explore jstage.jst.go.jp Jan 20 2021 Cardiology
  
  Aims: Recent studies suggested plaque erosion with noncritical stenosis could be treated distinctly from that with critical stenosis, but their morphological features remained largely unknown. The present study aimed to investigate morphological features of eroded plaques with different lumen stenosis using optical coherence tomography (OCT). Methods: A total of 348 ST-segment elevated myocardial infarction patients with culprit OCT-defined plaque erosion (OCT-erosion) were analyzed. Based on the severity of lumen area stenosis, all patients with OCT-erosions were divided into the following three groups: Group A (area stenosis ＜50%, n=50); Group B (50% ≤area stenosis ＜75%, n=146); Group C (area ...
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  Mentions: Harbin Medical University
9. Systemic and local factors associated with reduced thrombolysis in myocardial infarction flow in ST-segment elevation myocardial infarction patients with plaque erosion detected by intravascular optical coherence tomography
  
  Explore Home - Springer Oct 4 2020 Cardiology
  
  Local factors of plaque rupture (e.g. lipid burden) are related to preprocedural thrombolysis in myocardial infarction (TIMI) flow grade during primary percutaneous coronary intervention (PCI). However, the pathological mechanism differs between plaque erosion and rupture. We aimed to identify the factors associated with reduced TIMI flow in plaque erosion. A total of 329 ST-segment elevation myocardial infarction (STEMI) patients with optical coherence tomography (OCT) identified plaque erosion were divided into 2 groups by preprocedural TIMI flow grade [TIMI 0–1 group (n = 219) and TIMI 2–3 group (n = 110)]. Patients in TIMI 0–1 group were older (age ...
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  Mentions: Harbin Medical University
10. Frequency, Predictors, Distribution, and Morphological Characteristics of Layered Culprit and Nonculprit Plaques of Patients With Acute Myocardial Infarction: In Vivo 3-Vessel Optical Coherence Tomography Study.
  
  Explore Home | AHA/ASA Journals Sep 25 2020 Cardiology
  
  Background: Subclinical atherothrombosis and plaque healing may lead to rapid plaque progression. The histopathologic healed plaque has a layered appearance when imaged using optical coherence tomography. We assessed the frequency, predictors, distribution, and morphological characteristics of optical coherence tomography layered culprit and nonculprit plaques in patients with acute myocardial infarction. Methods: A prospective series of 325 patients with acute myocardial infarction underwent optical coherence tomography imaging of all 3 native coronary arteries. Layered plaque phenotype had heterogeneous signal-rich layered tissue located close to the luminal surface that was clearly demarcated from the underlying plaque. Results: Layered plaques were detected in ...
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11. Association of ABO blood groups and non-culprit plaque characteristics in acute coronary syndrome: an optical coherence tomography study
  
  Explore Home Sep 22 2020 Cardiology
  
  Background: Cardiovascular disease (CVD) poses a serious threat to human health. Research shows that ABO blood groups, especially non-O blood types, are closely related to the incidence of cardiovascular diseases (CVDs). This study aimed to determine the associations of blood types with non-culprit coronary plaque characteristics using optical coherence tomography (OCT). Methods: A total of 257 acute coronary syndrome (ACS) patients (average age, 59.39±10.08 years, 80% male) who underwent OCT of 3 vessels were identified. Subjects were divided into 2 groups: the O blood group (71 patients with 121 plaques) and the non-O group (186 patients with ...
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  Mentions: Harbin Medical University
12. Culprit lesion morphology in young patients with st-segment elevated myocardial infarction: A clinical, angiographic and optical coherence tomography study
  
  Explore atherosclerosis-journal.com Aug 22 2019 Cardiology
  
  Background and aims About 20% of patients with ST-segment elevated myocardial infarction (STEMI) are young adults. Morphological characteristics of culprit lesion in young STEMI patients have not been systematically evaluated in vivo . The present study aimed to investigate culprit lesion characteristics in young patients versus older patients using optical coherence tomography (OCT). Methods 1442 STEMI patients who underwent OCT examination of culprit lesion were included and divided into young group (age ≤50 years, n = 400) and older group (age >50 years, n = 1042). Clinical characteristics, angiography and OCT findings were compared between the two groups. Results Culprit lesions in STEMI ...
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  Mentions: Harbin Medical University
13. Pre-infarction Angina and Culprit Lesion Morphologies in Patients with a First ST-segment Elevation Acute Myocardial Infarction: Insights from In Vivo Optical Coherence Tomography
  
  Explore eurointervention.org Oct 9 2018 Cardiology
  
  Aims: This study aimed to evaluate the relationship between pre-infarction angina (PIA) and in vivo culprit lesion characteristics as assessed by intravascular optical coherence tomography (OCT) in patients with a first ST-segment elevation myocardial infarction (STEMI). Methods and results: A total of 305 consecutive patients with a first STEMI who underwent OCT imaging of culprit lesions during primary percutaneous coronary intervention (PCI) were prospectively enrolled. OCT findings of the culprit plaque were compared between patients with (n=206) and without PIA (n=99). Patients with PIA showed lower rates of thin-cap fibroatheroma (TCFA) (62.6% vs. 80.8%, P=0 ...
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  Mentions: Harbin Medical University Ospedali Riuniti di Bergamo
14. Impact of vessel curvature on neointimal healing after stent implantation as assessed by optical coherence tomography
  
  Explore LWW Online Apr 26 2018 Cardiology
  
  Purpose: Previous studies have indicated that stent implantation could alter the vessel geometry, which may impact the neointimal healing process. Curvature is an important parameter for evaluating vessel geometry. The purpose of our study was to investigate the relationship between vessel curvature and neointimal healing after stent implantation. Methods: Fifty-nine patients with acute coronary syndrome (ACS) who underwent stent implantation were enrolled in the study. According to the post-percutaneous coronary intervention vessel curvature measured by quantitative coronary angiography, patients were divided into high (n = 30) and low (n = 29) curvature groups. Neointimal thickness and area together with the neointimal type ...
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  Mentions: Harbin Medical University
15. In vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction: a clinical, angiographical, and intravascular optical coherence tomography study
  
  Explore Journals Mar 13 2018 Cardiology
  
  Aims Plaque erosion is a significant substrate of acute coronary thrombosis. This study sought to determine in vivo predictors of plaque erosion in patients with ST-segment elevation myocardial infarction (STEMI). Methods and results A prospective series of 822 STEMI patients underwent pre-intervention optical coherence tomography. Using established diagnostic criteria, 209 had plaque erosion (25.4%) and 564 had plaque rupture (68.6%). Plaque erosion was more frequent in women <50 years when compared with those ≥50 years of age ( P = 0.009). There was a similar, but less striking, trend in men ( P = 0.011). Patients with plaque erosion were ...
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  Mentions: Cardiovascular Research Foundation Harbin Medical University
16. Does spotty calcification attenuate the response of nonculprit plaque to statin therapy?: A serial optical coherence tomography study
  
  Explore Wiley Online Library Jan 23 2018 Cardiology
  
  Objectives The aim of this study was to determine if spotty calcification decreases the response of plaque progression to statin therapy. Background Previous studies showed that the presence of spotty calcification is a marker of vulnerable plaque. However, the relationship between spotty calcification and plaque progression is not clear. Methods Ninety-six nonculprit lipid-rich plaques in 69 patients who received serial optical coherence tomography (OCT) imaging were included. Plaques were divided into three groups: spotty calcification ( n = 38), calcified ( n = 12) and noncalcified ( n = 46) plaques. Spotty calcification was identified by the presence of a lesion <4 mm in length with ...
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  Mentions: Abbott Harbin Medical University
17. EROSION Study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion)
  
  Explore Circulation Dec 19 2017 Cardiology
  
  Background— The initial EROSION study (Effective Anti-Thrombotic Therapy Without Stenting: Intravascular Optical Coherence Tomography–Based Management in Plaque Erosion) demonstrated that patients with acute coronary syndrome caused by plaque erosion might be stabilized with aspirin and ticagrelor without stenting for ≤1 month. However, a long-term evaluation of outcomes is lacking. The aim of this study was to assess whether the initial benefit of noninterventional therapy for patients with acute coronary syndrome caused by plaque erosion is maintained for ≤1 year. Methods and Results— Among 53 patients who completed clinical follow-up, 49 underwent repeat optical coherence tomography imaging at 1 year ...
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  Mentions: Massachusetts General Hospital Harvard University Abbott
18. Impact of Cigarette Smoking and Smoking Cessation on Stent Changes as Determined by Optical Coherence Tomography after Sirolimus Stent Implantation
  
  Explore American Journal of Cardiology Jul 24 2017 Cardiology
  
  There is debate regarding whether smoking results in microstructural changes after stenting. The aim of this study was to evaluate the microstructural changes after stenting in patients with different smoking statuses. We retrospectively identified 220 sirolimus-eluting stents in 179 patients who underwent follow-up optical coherence tomography examination 12 months after sirolimus stenting. Subjects were classified as current smokers (CS, n=31), smoking cessation ≤1 year (SC1Y, n=36), smoking cessation >1 year (SC>1Y, n=27) and never smokers (NS, n=85). The neointimal hyperplasia (NIH) area was larger in CS than NS (1.04±0.72 mm 2 versus ...
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  Mentions: Harbin Medical University
19. Impact of statins therapy on morphological changes in lipid-rich plaques stratified by 10-Year framingham risk score: A serial optical coherence tomography study
  
  Explore impactjournals Apr 22 2017 Cardiology
  
  The aim of the study was to investigate the impact of statins therapy on morphological changes of lipid-rich plaques by OCT (optical coherence tomography) in patients with known CHD (coronary heart disease), stratified by FRS. Ninety-seven lipid-rich plaques from sixty-nine patients who received statins therapy and underwent serial OCT images (baseline, 6-month and 12-month) were divided into 2 groups according to the FRS (framingham risk score): low risk group A (FRS<10%, N=35, n=45), moderate to high risk group B (FRS≥10%, N=34, n=52). Fibrous cap thickness (FCT) was measured at its thinnest part 3 times ...
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  Mentions: Harbin Medical University
20. Chronic total occlusion is associated with a higher incidence of malapposition and uncovered stent struts: OCT findings at 6 months following DES implantation
  
  Explore Wiley Online Library Mar 20 2017 Cardiology
  
  Objectives To compare stent coverage and malapposition in patients with chronic total occlusion (CTO) lesions and non-CTO lesions (including lipid-rich plaque [LRP] and non-lipid-rich plaque [non-LRP]) after drug-eluting stent (DES) implantation by optical coherence tomography (OCT). Background Different initial lesion characteristics may be related to heterogeneous vessel responses after DES implantation. However, the vessel response in patients with CTO and non-CTO lesions after stenting is unclear. Methods We retrospectively enrolled 64 patients with 68 target lesions. All of the patients underwent OCT imaging immediate after stenting and 6 months after stenting. LRP was defined as the plaque with lipid content ...
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  Mentions: Harbin Medical University
21. Management and Outcome of Patients With Acute Coronary Syndrome Caused by Plaque Rupture Versus Plaque Erosion: An Intravascular Optical Coherence Tomography Study
  
  Explore jaha.ahajournals.org Mar 1 2017 Cardiology
  
  Background Plaque rupture and erosion are the 2 most common mechanisms for acute coronary syndromes. However, the outcome of these 2 distinct pathologies in patients with acute coronary syndromes has never been studied. Methods and Results We retrospectively studied 141 patients with acute coronary syndromes who underwent optical coherence tomography ( OCT ) imaging of the culprit lesion prior to stenting from the Massachusetts General Hospital OCT Registry. Management (stent versus no stent), poststent OCT findings, and outcomes were compared. Among the 141 culprit lesions, rupture was found in 79 (56%) patients and erosion in 62 (44%). Stent implantation was performed in ...
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  Mentions: Massachusetts General Hospital Harvard University Harbin Medical University
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