Results 101 to 110 of about 1,256,738 (400)

Retinal and choroidal vascular changes in coronary heart disease: an optical coherence tomography angiography study.

Biomedical Optics Express, 2019
To reveal the association between retinal microvasculature changes and coronary heart disease (CHD), we assessed the full retinal thicknesses of eight areas, the vessel density of four layers (consisting of nine areas) and the flow area in two layers ...
J. Wang, Jie-Xian Jiang, Yuyi Zhang, Yiwen Qian, Jianian Zhang, Zheng Wang   +5 more
semanticscholar   +1 more source

Endovascular Stenting for Pulmonary Vein Stenosis Following Atrial Fibrillation Ablation: From Diagnosis to Intervention

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Pulmonary vein stenosis (PVS) is an uncommon but serious complication of atrial fibrillation (AF) ablation, often misinterpreted as primary pulmonary disease. Timely identification is essential to prevent irreversible injury and to guide appropriate referral for interventional management. Case Presentations Through the discussion of
Cristina Aurigemma, Marco Busco, Francesco Bianchini, Gabriella Locorotondo, Francesca Graziani, Annalisa Pasquini, Enrico Romagnoli, Mattia Lunardi, Lazzaro Paraggio, Francesco Varone, Andrea Smargiassi, Bruno Iovene, Riccardo Marano, Carlo Trani, Francesco Burzotta   +14 more
wiley   +1 more source

Coronary CT Angiography-derived Fractional Flow Reserve Testing in Patients with Stable Coronary Artery Disease: Recommendations on Interpretation and Reporting

Radiology: Cardiothoracic Imaging, 2019
Noninvasive fractional flow reserve derived from coronary CT angiography (FFRCT) is increasingly used in patients with coronary artery disease as a gatekeeper to the catheterization laboratory.
B. Nørgaard, T. Fairbairn, R. Safian, M. Rabbat, B. Ko, J. Jensen, K. Nieman, K. Chinnaiyan, N. Sand, H. Matsuo, J. Leipsic, G. Raff   +11 more
semanticscholar   +1 more source

Prevention and Management of Percutaneous Coronary Intervention‐Related Complications: Assessing the Impact of Simulation‐Based Learning and Human Factors Training

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Complications of percutaneous coronary intervention (PCI) remain infrequent but are associated with a risk of serious injury or death. The techniques and devices required to manage them may be unfamiliar or unavailable to operators.
Junichi Fukamizu, Tobias MacCarthy, Ikuo Shimizu, Shigeki Ariura, Ryouta Tanetani, Shouta Arahira, Manabu Tamura, Ken Masamune, Kalaivani Mahadevan, Nitin Chandramohan, Thomas Hovasse, Jacques Monsegu, James Nolan, Joelle Kefer, Piotr Musialek, Martin Oberhoff, Michael Haude, Hakim Benamer, Olivier Muller, Patrick A. Calvert, Satoru Sumitsuji, Peter O'Kane, Gabor Toth, Thomas Cuisset, William Wijns, Thomas W. Johnson   +25 more
wiley   +1 more source

Beam hardening artifact reduction using dual energy computed tomography: implications for myocardial perfusion studies [PDF]

, 2015
Background: Myocardial perfusion computed tomography (CTP) using conventional single energy (SE) imaging is influenced by the presence of beam hardening artifacts (BHA), occasionally resembling perfusion defects and commonly observed at the left ...
Capunay, Carlos, Carrascosa, Patricia, Cipriano, Silvia, Cury, Ricardo C., De Zan, Macarena, Deviggiano, Alejandro, Rodriguez Granillo, Gaston Alfredo   +6 more
core   +1 more source

A Prospective, Multicenter, Open Label Study Investigating the Implementation of a Standardized Algorithm for Coronary CaLcificatiOn With PlaquE Modification Using UltraSound Guidance to Improve Procedural and Clinical Outcomes (CYCLOPES): Design and Rationale of the CYCLOPES Trial

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Introduction Moderate‐to‐severe calcification is present in ~20%–30% of patients undergoing coronary angiography. Coronary lesion modification is often necessary to facilitate optimal stent delivery and expansion, with several dedicated devices now approved for calcium modification before stent implantation. The CYCLOPES study aims to evaluate
Daniel O'Callaghan, Rory Durand, Colm G. Hanratty, Thomas Cuisset, Beatriz Vaquerizo, Jan‐Malte Sinning, Peter O'Kane, J. J. Coughlan, Simon Walsh, Róisín Colleran, Himanshu Rai, Osama Soliman, Emanuele Barbato, Barbara E. Stähli, Robert A. Byrne   +14 more
wiley   +1 more source

Assessment of Coronary Artery Stenosis with 16 Slices Multidetector CT

Siriraj Medical Journal, 2008
Objective: To investigate the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of noninvasive coronary computer tomography (CT) for assessment of coronary arteries.
Maligar Kaveevorayan, Thanongchai Siriapisith, Damras Tresukosol, Jitladda Wasinrat, Siriluck Suriyabantleng   +4 more
doaj  

Multi-modality imaging of a left atrial myxoma

SAGE Open Medical Case Reports, 2017
Objectives: Although echocardiography has traditionally been used to diagnose myxoma, invasive or non-invasive coronary angiography can be useful diagnostic tool before surgery.
Hae Won Jung, Joon Hyung Doh, Woo-Ik Chang   +2 more
doaj   +1 more source

Evaluation of Motion Artifact Metrics for Coronary CT Angiography [PDF]

, 2018
Purpose This study quantified the performance of coronary artery motion artifact metrics relative to human observer ratings. Motion artifact metrics have been used as part of motion correction and best‐phase selection algorithms for Coronary Computed ...
Contijoch, Desjardins, Gaemperli, Hollander, Husmann, Johnson, Kendall, Kim, Kyriakou, Manzke, Mowatt, Parzen, Phelps, Plank, Rohkohl, Stassi, Tang, Vembar, Warfield, Wick   +19 more
core   +2 more sources

Prognostic Value and Risk Continuum of Noninvasive Fractional Flow Reserve Derived from Coronary CT Angiography.

Radiology, 2019
Background Coronary CT angiography with noninvasive fractional flow reserve (FFR) predicts lesion-specific ischemia when compared with invasive FFR. The longer term prognostic value of CT-derived FFR (FFRCT) is unknown.
A. Ihdayhid, B. Nørgaard, S. Gaur, J. Leipsic, N. Nerlekar, K. Osawa, T. Miyoshi, J. Jensen, Takeshi Kimura, H. Shiomi, A. Erglis, S. Jegere, K. Oldroyd, H. Bøtker, S. Seneviratne, S. Achenbach, B. Ko   +16 more
semanticscholar   +1 more source