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IVUS images

Intravascular ultrasound-guided percutaneous coronary intervention in left main coronary bifurcation lesions: a review

Intravascular ultrasound-guided percutaneous coronary intervention in left main coronary bifurcation lesions: a review

... scale IVUS imaging is limited in its ability to characterize plaque composition, beyond attempts to measure plaque ...signal-derived IVUS tissue characteriza- tion technology has provided objective and ...

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Automated classification of dense calcium tissues in gray-scale intravascular ultrasound images using a deep belief network

Automated classification of dense calcium tissues in gray-scale intravascular ultrasound images using a deep belief network

... low significance levels, because these features were influ- enced by the border locations. Typically, coronary arter- ies are highly prone to rupture when more DC tissues are distributed close to the intima border. Some ...

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Impact of Coronary Plaque Characteristics on Late Stent Malapposition after Drug Eluting Stent Implantation

Impact of Coronary Plaque Characteristics on Late Stent Malapposition after Drug Eluting Stent Implantation

... pre-procedural IVUS images, the diseased segment was selected and the references were defined as the most normal-appearing segments within 5 mm proximal and distal to the lesion ...OCT images, was ...

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Comparison between Measured and Calculated Length of Side Branch Ostium in Coronary Bifurcation Lesions with Intravascular Ultrasound

Comparison between Measured and Calculated Length of Side Branch Ostium in Coronary Bifurcation Lesions with Intravascular Ultrasound

... the IVUS database of our institute, we recruited 113 patients who had undergone drug-eluting stent implantation for coronary bifurcation lesions and had a SB diameter ...vention IVUS images of the MV ...

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Comparisons of the Effects of Stent Eccentricity on the Neointimal Hyperplasia between Sirolimus Eluting Stent versus Paclitaxel Eluting Stent

Comparisons of the Effects of Stent Eccentricity on the Neointimal Hyperplasia between Sirolimus Eluting Stent versus Paclitaxel Eluting Stent

... All IVUS images were reviewed in an independent IVUS core laboratory at Yonsei University Medical ...Center. IVUS assessment was performed using a commercially available IVUS system ...

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Three-dimensional reconstruction of coronary arteries and plaque morphology using CT angiography – comparison and registration with IVUS

Three-dimensional reconstruction of coronary arteries and plaque morphology using CT angiography – comparison and registration with IVUS

... LA and GR designed and implemented the proposed CT reconstruction and plaque characterization method. AIS, PKS have performed the 3D validation comparisons of the presented methodology. PAL and BAF acquired 12 CT and ...

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IVUS detection using Image Processing: A Review

IVUS detection using Image Processing: A Review

... IVUS images. In a new approach to make a shape-driven approach to segment IVUS images which was based on building a shape space using training data and, consequently, constraining the lumen ...

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Paper 07-2012-2

Paper 07-2012-2

... 3-D IVUS catheter path is reconstructed from a pair of biplane angio images taken from same cardiac ...gated IVUS images and fused with catheter path to retrieve volumetric mesh for ...

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Ultrasonic characterization of the pulmonary venous wall: echographic and histological correlation

Ultrasonic characterization of the pulmonary venous wall: echographic and histological correlation

... Methods and Results—We retrieved 32 pulmonary veins from 8 patients dying from noncardiac causes. We obtained cross-sectional intravascular ultrasound (IVUS) images with a 3.2F, 30-MHz ultrasound catheter ...

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Comparison between integrated backscatter intravascular ultrasound and 64-slice multi-detector row computed tomography for tissue characterization and volumetric assessment of coronary plaques

Comparison between integrated backscatter intravascular ultrasound and 64-slice multi-detector row computed tomography for tissue characterization and volumetric assessment of coronary plaques

... Conventional IVUS images and ultrasound signals were acquired using an IVUS imaging system (Clear View, Boston Scientific, MA) with a 40 MHz intravascular ...During IVUS imaging, we ...

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Hybrid Feature Extraction Techniques For Accuracy Improvement In IVUS Image Classification

Hybrid Feature Extraction Techniques For Accuracy Improvement In IVUS Image Classification

... (IVUS) images in order to detect the coronary artery ...different IVUS Medical images by performing the steps like Pre-processing, Minimizing the false positive findings, Reduction of ...

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Impact of statin therapy on coronary plaque composition: a systematic review and meta-analysis of virtual histology intravascular ultrasound studies

Impact of statin therapy on coronary plaque composition: a systematic review and meta-analysis of virtual histology intravascular ultrasound studies

... Burden; ATHEROREMO-IVUS: European Collaborative Project on Inflammation and Vascular Wall Remodeling in Atherosclerosis; BMI: Body mass index; CI: Confidence interval; CMA: Comprehensive Meta-Analysis; CVD: ...

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Insights into the pathogenesis of vein graft disease: lessons from intravascular ultrasound

Insights into the pathogenesis of vein graft disease: lessons from intravascular ultrasound

... [20]. This confusion was most likely due to the small sam- ple sizes in these early studies however (Table 2). Hong et al [22] used IVUS to assess the extent and direction of remodeling in 104 grafts in 93 ...

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Multidetector Computed Tomography for the Evaluation of Coronary Artery Disease; The Diagnostic Accuracy in Calcified Coronary Arteries, Comparing with IVUS Imaging

Multidetector Computed Tomography for the Evaluation of Coronary Artery Disease; The Diagnostic Accuracy in Calcified Coronary Arteries, Comparing with IVUS Imaging

... rendering images with orthogonal and perpendicular projections to the vessel courses of each coronary segment were generat- ed for the evaluation of coronary artery disease ...

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Plaque volume and plaque risk profile in diabetic vs. non-diabetic patients undergoing lipid-lowering therapy: a study based on 3D intravascular ultrasound and virtual histology

Plaque volume and plaque risk profile in diabetic vs. non-diabetic patients undergoing lipid-lowering therapy: a study based on 3D intravascular ultrasound and virtual histology

... backscatter; IVUS: intravascular ultrasound; IVUS-VH: virtual histology; MACE: major cardiac adverse event; MHz: mega Hertz; MI: myocardial infarction; MLA: minimal lumen area; NC: necrotic core; NIH: ...

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Assessment of Intermediate Coronary Artery Lesion with Fractional Flow Reserve (FFR) versus Intravascular Ultrasound (IVUS)

Assessment of Intermediate Coronary Artery Lesion with Fractional Flow Reserve (FFR) versus Intravascular Ultrasound (IVUS)

... of IVUS imaging in facilitating the revascularization decision process based on the contribution of the lumen diameter stenosis to ischemia has only been reported in retrospective analyses and is in question ...

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Neointimal hyperplasia persists at six months after sirolimus-eluting stent implantation in diabetic porcine

Neointimal hyperplasia persists at six months after sirolimus-eluting stent implantation in diabetic porcine

... In general, neointimal response is exaggerated and the time course of healing is more prolonged in humans than in animals [29]. In a porcine model, peak neointimal growth after implantation of bare metal stents is ...

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METHODS FOR SEGMENTATION OF IVUS ATHEROSCLEROSIS IMAGES

METHODS FOR SEGMENTATION OF IVUS ATHEROSCLEROSIS IMAGES

... 9, :9 1 ; $9 9 < ; :9 < ! = $9 9 >?>@ ; :9 >?>@ ! (8) D is a bi-dimensional distance based on the two NG and Spatial attributes. In this equation, the weight $9 permits to control the importance of ...

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Intracoronary near-infrared spectroscopy and the risk of future cardiovascular events

Intracoronary near-infrared spectroscopy and the risk of future cardiovascular events

... Despite the promising results of NIRS, several lesions with MaxLCBI 4mm ≥400 did not cause a future cardiovas- cular event during the follow-up time in this study, and secondary preventive medication is still the gold ...

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Focus on the research utility of intravascular ultrasound - comparison with other invasive modalities

Focus on the research utility of intravascular ultrasound - comparison with other invasive modalities

... of IVUS imaging in research The superiority of IVUS imaging over angiography were obvious from its initial steps ...reliable IVUS processing and quantitative analysis ...of IVUS in numerous ...

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