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Circulation. Cardiovascular Imaging

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https://www.readbyqxmd.com/read/27899361/a-case-of-rheumatic-fibrinous-pericarditis
#1
Krishna Kumar Mohanan Nair, Sanjay Ganapathi, Harikrishnan Sivadasanpillai, Sivasankaran Sivasubramanian, Ajitkumar Valaparambil, Jaganmohan Tharakan
No abstract text is available yet for this article.
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903550/correction
#2
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903549/microvascular-integrity-in-myocardial-injury-the-irony-of-iron-deposition
#3
EDITORIAL
Navneet Narula, Nupoor Narula, Amir Ahmadi
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903548/endurance-exercise-and-myocardial-fibrosis-let-us-keep-the-risk-in-perspective
#4
EDITORIAL
Rob Shave, David Oxborough
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903547/right-ventricle-and-exercise-capacity-more-than-a-passive-conduit
#5
EDITORIAL
Todd D Miller, Nandan S Anavekar
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903546/positron-emission-tomography-fluorine-18-labeled-2-deoxy-2-fluoro-d-glucose-tells-a-complicated-story-in-the-aortic-aneurysm-wall
#6
EDITORIAL
John A Curci, Joshua A Beckman
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903545/illuminating-the-path-forward-in-cardiac-regeneration-using-strain-magnetic-resonance-imaging
#7
EDITORIAL
Frederick H Epstein, Moriel Vandsburger
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903544/aortic-valve-area-index-a-partial-answer-to-an-enigma
#8
EDITORIAL
Aidan W Flynn, David I Silverman
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903543/the-denser-the-merrier-the-developing-story-of-vascular-calcification
#9
EDITORIAL
Márcio Sommer Bittencourt
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903542/seeing-beyond-the-obvious-subclinical-cardiac-sarcoidosis-revealed-by-cardiovascular-magnetic-resonance-mapping
#10
EDITORIAL
Vanessa M Ferreira, Stefan K Piechnik
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903541/lifelong-physical-activity-regardless-of-dose-is-not-associated-with-myocardial-fibrosis
#11
Shuaib M Abdullah, Kyler W Barkley, Paul S Bhella, Jeffrey L Hastings, Susan Matulevicius, Naoki Fujimoto, Shigeki Shibata, Graeme Carrick-Ranson, M Dean Palmer, Nainesh Gandhi, Laura F DeFina, Benjamin D Levine
BACKGROUND: Recent reports have suggested that long-term, intensive physical training may be associated with adverse cardiovascular effects, including the development of myocardial fibrosis. However, the dose-response association of different levels of lifelong physical activity on myocardial fibrosis has not been evaluated. METHODS AND RESULTS: Seniors free of major chronic illnesses were recruited from predefined populations based on the consistent documentation of stable physical activity over >25 years and were classified into 4 groups by the number of sessions/week of aerobic activities ≥30 minutes: sedentary (group 1), <2 sessions; casual (group 2), 2 to 3 sessions; committed (group 3), 4 to 5 sessions; and Masters athletes (group 4), 6 to 7 sessions plus regular competitions...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903540/greater-volume-but-not-higher-density-of-abdominal-aortic-calcium-is-associated-with-increased-cardiovascular-disease-risk-mesa-multi-ethnic-study-of-atherosclerosis
#12
Nketi I Forbang, Erin D Michos, Robyn L McClelland, Rosemay A Remigio-Baker, Matthew A Allison, Veit Sandfort, Joachim H Ix, Isac Thomas, Dena E Rifkin, Michael H Criqui
BACKGROUND: Abdominal aortic calcium (AAC) and coronary artery calcium (CAC) independently and similarly predict cardiovascular disease (CVD) events. The standard AAC and CAC score, the Agatston method, upweights for greater calcium density, thereby modeling higher calcium density as a CVD hazard. METHODS AND RESULTS: Computed tomography scans were used to measure AAC and CAC volume and density in a multiethnic cohort of community-dwelling individuals, and Cox proportional hazard was used to determine their independent association with incident coronary heart disease (CHD, defined as myocardial infarction, resuscitated cardiac arrest, or CHD death), cardiovascular disease (CVD, defined as CHD plus stroke and stroke death), and all-cause mortality...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903539/outcome-implication-of-aortic-valve-area-normalized-to-body-size-in-asymptomatic-aortic-stenosis
#13
Christophe Tribouilloy, Yohann Bohbot, Sylvestre Maréchaux, Nicolas Debry, Quentin Delpierre, Marcel Peltier, Momar Diouf, Michel Slama, David Messika-Zeitoun, Dan Rusinaru
BACKGROUND: Current guidelines define severe aortic stenosis in patients with aortic valve area normalized to body surface area (AVA/BSA) <0.6 cm(2)/m(2); yet, this cutoff has never been validated. Moreover, it is not known whether AVA normalization to other body size indexes allows improved outcome prediction. We aim to test the value of AVA normalized to body size for outcome prediction in asymptomatic aortic stenosis. METHODS AND RESULTS: We included 289 patients with asymptomatic aortic stenosis, preserved ejection fraction, and AVA<1...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903538/right-ventricular-dysfunction-impairs-effort-tolerance-independent-of-left-ventricular-function-among-patients-undergoing-exercise-stress-myocardial-perfusion-imaging
#14
Jiwon Kim, Antonino Di Franco, Tania Seoane, Aparna Srinivasan, Polydoros N Kampaktsis, Alexi Geevarghese, Samantha R Goldburg, Saadat A Khan, Massimiliano Szulc, Mark B Ratcliffe, Robert A Levine, Ashley E Morgan, Pooja Maddula, Meenakshi Rozenstrauch, Tara Shah, Richard B Devereux, Jonathan W Weinsaft
BACKGROUND: Right ventricular (RV) and left ventricular (LV) function are closely linked due to a variety of factors, including common coronary blood supply. Altered LV perfusion holds the potential to affect the RV, but links between LV ischemia and RV performance, and independent impact of RV dysfunction on effort tolerance, are unknown. METHODS AND RESULTS: The population comprised 2051 patients who underwent exercise stress myocardial perfusion imaging and echo (5...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903537/comprehensive-cardiovascular-magnetic-resonance-assessment-in-patients-with-sarcoidosis-and-preserved-left-ventricular-ejection-fraction
#15
Simon Greulich, Daniel Kitterer, Joerg Latus, Eissa Aguor, Hannah Steubing, Philipp Kaesemann, Alexandru Patrascu, Andreas Greiser, Stefan Groeninger, Agnes Mayr, Niko Braun, M Dominik Alscher, Udo Sechtem, Heiko Mahrholdt
BACKGROUND: Cardiac sarcoidosis (CS) may manifest as arrhythmia or even sudden cardiac death. Because patients with CS often present with nonspecific symptoms, normal electrocardiography, and preserved left ventricular ejection fraction, a reliable diagnostic tool for the work-up of CS is needed. Late gadolinium enhancement-cardiovascular magnetic resonance has proven diagnostic value in CS but has some limitations that may be overcome by adding newer cardiovascular magnetic resonance mapping techniques...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903536/persistent-microvascular-obstruction-after-myocardial-infarction-culminates-in-the-confluence-of-ferric-iron-oxide-crystals-proinflammatory-burden-and-adverse-remodeling
#16
Avinash Kali, Ivan Cokic, Richard Tang, Alice Dohnalkova, Libor Kovarik, Hsin-Jung Yang, Andreas Kumar, Frank S Prato, John C Wood, David Underhill, Eduardo Marbán, Rohan Dharmakumar
BACKGROUND: Emerging evidence indicates that persistent microvascular obstruction (PMO) is more predictive of major adverse cardiovascular events than myocardial infarct (MI) size. But it remains unclear how PMO, a phenomenon limited to the acute/subacute period of MI, drives adverse remodeling in chronic MI setting. We hypothesized that PMO resolves into chronic iron crystals within MI territories, which in turn are proinflammatory and favor adverse remodeling post-MI. METHODS AND RESULTS: Canines (n=40) were studied with cardiac magnetic resonance imaging to characterize the spatiotemporal relationships among PMO, iron deposition, infarct resorption, and left ventricular remodeling between day 7 (acute) and week 8 (chronic) post-MI...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903535/magnetic-resonance-imaging-of-cardiac-strain-pattern-following-transplantation-of-human-tissue-engineered-heart-muscles
#17
Xulei Qin, Johannes Riegler, Malte Tiburcy, Xin Zhao, Tony Chour, Babacar Ndoye, Michael Nguyen, Jackson Adams, Mohamed Ameen, Thomas S Denney, Phillip C Yang, Patricia Nguyen, Wolfram H Zimmermann, Joseph C Wu
BACKGROUND: The use of tissue engineering approaches in combination with exogenously produced cardiomyocytes offers the potential to restore contractile function after myocardial injury. However, current techniques assessing changes in global cardiac performance after such treatments are plagued by relatively low detection ability. Since the treatment is locally performed, this detection could be improved by myocardial strain imaging that measures regional contractility. METHODS AND RESULTS: Tissue engineered heart muscles (EHMs) were generated by casting human embryonic stem cell-derived cardiomyocytes with collagen in preformed molds...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903534/high-structural-stress-and-presence-of-intraluminal-thrombus-predict-abdominal-aortic-aneurysm-18f-fdg-uptake-insights-from-biomechanics
#18
Yuan Huang, Zhongzhao Teng, Maysoon Elkhawad, Jason M Tarkin, Nikhil Joshi, Jonathan R Boyle, John R Buscombe, Timothy D Fryer, Yongxue Zhang, Ah Yeon Park, Ian B Wilkinson, David E Newby, Jonathan H Gillard, James H F Rudd
BACKGROUND: Abdominal aortic aneurysm (AAA) wall inflammation and mechanical structural stress may influence AAA expansion and lead to rupture. We hypothesized a positive correlation between structural stress and fluorine-18-labeled 2-deoxy-2-fluoro-d-glucose ((18)F-FDG) positron emission tomography-defined inflammation. We also explored the influence of computed tomography-derived aneurysm morphology and composition, including intraluminal thrombus, on both variables. METHODS AND RESULTS: Twenty-one patients (19 males) with AAAs below surgical threshold (AAA size was 4...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27811152/developing-a-deeper-understanding-of-sex-differences-in-the-diagnostic-performance-of-computed-tomographic-perfusion-imaging-toward-a-more-personalized-approach
#19
EDITORIAL
Shaw Hua Anthony Kueh, Stephanie Sellers, Jonathon Leipsic
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27811151/computed-tomographic-perfusion-improves-diagnostic-power-of-coronary-computed-tomographic-angiography-in-women-analysis-of-the-core320-trial-coronary-artery-evaluation-using-320-row-multidetector-computed-tomography-angiography-and-myocardial-perfusion-according
#20
Ashritha Penagaluri, Angela Y Higgins, Andrea L Vavere, Julie M Miller, Armin Arbab-Zadeh, Aisha Betoko, Chloe Steveson, Elke Zimmermann, Christopher Cox, Carlos E Rochitte, Marc Dewey, Klaus F Kofoed, Hiroyuki Niinuma, Marcelo F Di Carli, João A C Lima, Marcus Y Chen
BACKGROUND: Coronary computed tomographic angiography (CTA) and myocardial perfusion imaging (CTP) is a validated approach for detection and exclusion of flow-limiting coronary artery disease (CAD), but little data are available on gender-specific performance of these modalities. In this study, we aimed to evaluate the diagnostic accuracy of combined coronary CTA and CTP in detecting flow-limiting CAD in women compared with men. METHODS AND RESULTS: Three hundred and eighty-one patients who underwent both CTA-CTP and single-photon emission computed tomography myocardial perfusion imaging preceding invasive coronary angiography as part of the CORE320 multicenter study (Coronary Artery Evaluation Using 320-row Multidetector Computed Tomography Angiography and Myocardial Perfusion) were included in this ancillary study...
November 2016: Circulation. Cardiovascular Imaging
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