Browsing by Author "Shah, Ravi"
Now showing items 1-16 of 16
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Cardiac Magnetic Resonance Assessment of Interstitial Myocardial Fibrosis and Cardiomyocyte Hypertrophy in Hypertensive Mice Treated With Spironolactone
Coelho‐Filho, Otavio R.; Shah, Ravi V.; Neilan, Tomas G.; Mitchell, Richard; Moreno, Heitor; Kwong, Raymond; Jerosch‐Herold, Michael (Blackwell Publishing Ltd, 2014)Background: Nearly 50% of patients with heart failure (HF) have preserved LV ejection fraction, with interstitial fibrosis and cardiomyocyte hypertrophy as early manifestations of pressure overload. However, methods to ... -
Effect of Late Gadolinium Enhancement on the Recovery of Left Ventricular Systolic Function After Pulmonary Vein Isolation
Addison, Daniel; Farhad, Hoshang; Shah, Ravi V.; Mayrhofer, Thomas; Abbasi, Siddique A.; John, Roy M.; Michaud, Gregory F.; Jerosch‐Herold, Michael; Hoffmann, Udo; Stevenson, William G.; Kwong, Raymond Y.; Neilan, Tomas G. (John Wiley and Sons Inc., 2016)Background: The factors that predict recovery of left ventricular (LV) systolic dysfunction among patients with atrial fibrillation (AF) are not completely understood. Late gadolinium enhancement (LGE) of the LV has been ... -
Effect of Sleep Apnea and Continuous Positive Airway Pressure on Cardiac Structure and Recurrence of Atrial Fibrillation
Neilan, Tomas G.; Farhad, Hoshang; Dodson, John A.; Shah, Ravi V.; Abbasi, Siddique A.; Bakker, Jessie P.; Michaud, Gregory F.; van der Geest, Rob; Blankstein, Ron; Steigner, Michael; John, Roy M.; Jerosch‐Herold, Michael; Malhotra, Atul; Kwong, Raymond Y. (Blackwell Publishing Ltd, 2013)Background: Sleep apnea (SA) is associated with an increased risk of atrial fibrillation (AF). We sought to determine the effect of SA on cardiac structure in patients with AF, whether therapy for SA was associated with ... -
Impact of cardiovascular magnetic resonance on management and clinical decision-making in heart failure patients
Abbasi, Siddique A; Ertel, Andrew; Shah, Ravi V; Dandekar, Vineet; Chung, Jaehoon; Bhat, Geetha; Desai, Ankit A; Kwong, Raymond Y; Farzaneh-Far, Afshin (BioMed Central, 2013)Background: Cardiovascular magnetic resonance (CMR) can provide important diagnostic and prognostic information in patients with heart failure. However, in the current health care environment, use of a new imaging modality ... -
The Incidence, Pattern, and Prognostic Value of Left Ventricular Myocardial Scar by Late Gadolinium Enhancement in Patients With Atrial Fibrillation
Neilan, Tomas G; Shah, Ravi Vikram; Abbasi, Siddique Akbar; Farhad, Hoshang; Groarke, John David; Dodson, John; Coelho-Filho, Otavio; McMullan, Ciaran Joseph; Heydari, Bobak; Michaud, Gregory F.; John, Roy Mattathu; van der Geest, Rob; Steigner, Michael L.; Blankstein, Ron; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (Elsevier BV, 2013)Objectives We aimed to identify the frequency, pattern, and prognostic significance of left ventricular (LV) late gadolinium enhancement (LGE) in patients with atrial fibrillation (AF). Background There are limited ... -
Insulin resistance, subclinical left ventricular remodeling, and the obesity paradox: the multi-ethnic study of atherosclerosis
Shah, Ravi Vikram; Abbasi, Siddique Akbar; Heydari, Bobby; Rickers, Carsten; Jacobs, David R; Wang, Lu; Kwong, Raymond Yan-Kit; Bluemke, David A; Lima, Joao A; Jerosch-Herold, Michael (BioMed Central, 2013) -
Left Atrial Passive Emptying Function Determined by Cardiac Magnetic Resonance Predicts Atrial Fibrillation Recurrence After Pulmonary Vein Isolation
Dodson, J; Neilan, Tomas G; Shah, Ravi Vikram; Farhad, H.; Blankstein, Ron; Steigner, Michael L.; Michaud, Gregory F.; John, Roy Mattathu; Abbasi, Siddique Akbar; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (Ovid Technologies (Wolters Kluwer Health), 2014)Background While pulmonary vein isolation (PVI) has become a mainstream therapy for selected patients with atrial fibrillation (AF), late recurrent AF is common and its risk factors remain poorly defined. The purpose ... -
Left atrial volume during the early convalescent phase of acute MI is strongly related to expansion of myocardial extracellular matrix during infarct healing and ventricular remodeling
Farhad, Hoshang; Abbasi, Siddique Akbar; Shah, Ravi Vikram; Heydari, Bobby; Neilan, Tomas G; Feng, Jiazuo H; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (BioMed Central, 2013) -
Myocardial Tissue Remodeling in Adolescent Obesity
Shah, Ravi V.; Abbasi, Siddique A.; Neilan, Tomas G.; Hulten, Edward; Coelho‐Filho, Otavio; Hoppin, Alison; Levitsky, Lynne; de Ferranti, Sarah; Rhodes, Erinn T.; Traum, Avram; Goodman, Elizabeth; Feng, Henry; Heydari, Bobak; Harris, William S.; Hoefner, Daniel M.; McConnell, Joseph P.; Seethamraju, Ravi; Rickers, Carsten; Kwong, Raymond Y.; Jerosch‐Herold, Michael (Blackwell Publishing Ltd, 2013)Background: Childhood obesity is a significant risk factor for cardiovascular disease in adulthood. Although ventricular remodeling has been reported in obese youth, early tissue‐level markers within the myocardium that ... -
Obesity, metabolic syndrome and cardiovascular prognosis: from the Partners coronary computed tomography angiography registry
Hulten, Edward A.; Bittencourt, Marcio Sommer; Preston, Ryan; Singh, Avinainder; Romagnolli, Carla; Ghoshhajra, Brian; Shah, Ravi; Abbasi, Siddique; Abbara, Suhny; Nasir, Khurram; Blaha, Michael; Hoffmann, Udo; Di Carli, Marcelo F.; Blankstein, Ron (BioMed Central, 2017)Objective: To investigate the relationship among body mass index (BMI), cardiometabolic risk and coronary artery disease (CAD) among patients undergoing coronary computed tomography angiography (CTA). Methods: Retrospective ... -
Risk Stratification by Regadenoson Stress Magnetic Resonance Imaging in Patients With Known or Suspected Coronary Artery Disease
Abbasi, Siddique Akbar; Heydari, Bobak; Shah, Ravi Vikram; Murthy, Venkatesh N.; Zhang, Ying-Yi; Blankstein, Ron; Steigner, Michael L.; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (Elsevier BV, 2014)The aim of this study was to investigate the association between major adverse cardiovascular events (MACEs) and inducible ischemia on regadenoson cardiac magnetic resonance (CMR) myocardial perfusion imaging (MPI) performed ... -
Stress Cardiac Magnetic Resonance Imaging Provides Effective Cardiac Risk Reclassification in Patients With Known or Suspected Stable Coronary Artery Disease
Shah, Ravi Vikram; Heydari, B; Coelho-Filho, O.; Murthy, Venkatesh N.; Abbasi, Siddique Akbar; Feng, J. H.; Pencina, M.; Neilan, Tomas G; Meadows, J. L.; Francis, S; Blankstein, Ron; Steigner, Michael L.; Di Carli, Marcelo F.; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (Ovid Technologies (Wolters Kluwer Health), 2013)Background A recent large-scale clinical trial found that an initial invasive strategy does not improve cardiac outcomes beyond optimized medical therapy in patients with stable coronary artery disease (CAD). Novel ... -
T1 measurements identify extracellular volume expansion in a genotyped hypertrophic cardiomyopathy population with and without left ventricular hypertrophy
Abbasi, Siddique Akbar; Shah, Ravi Vikram; Neilan, Tomas G; Heydari, Bobby; Chen, Yucheng; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit; Ho, Carolyn Yung (BioMed Central, 2013) -
Usefulness of Hemoglobin A1c to Predict Outcome After Cardiac Resynchronization Therapy in Patients With Diabetes Mellitus and Heart Failure
Shah, Ravi Vikram; Altman, Robert K.; Park, Mi Young; Zilinski, Jodi; Leyton-Mange, Jordan Stewart; Orencole, Mary; Picard, Michael Howard; Barrett, Conor D.; Heist, Edwin Kevin; Upadhyay, Gaurav; Das, Ranendra; Singh, Jagmeet P.; Das, Saumya (Elsevier BV, 2012)Patients with diabetes and heart failure (HF) have worse clinical outcomes compared to patients with HF without diabetes after cardiac resynchronization therapy (CRT). Patients with HF and diabetes represent a growing ... -
Vasodilator Stress Perfusion CMR Imaging Is Feasible and Prognostic in Obese Patients
Shah, Ravi Vikram; Heydari, Bobak; Coelho-Filho, Otavio; Abbasi, Siddique Akbar; Feng, Jiazhuo H.; Neilan, Tomas G; Francis, Sanjeev; Blankstein, Ron; Steigner, Michael L.; Jerosch-Herold, Michael; Kwong, Raymond Yan-Kit (Elsevier BV, 2014)Objectives This study sought to determine feasibility and prognostic performance of stress cardiac magnetic resonance (CMR) in obese patients (body mass index [BMI] ≥30 kg/m2). Background Current stress imaging ... -
Wild-type but not interferon-γ-deficient T cells induce graft arterial disease in the absence of B cells
Furukawa, Yutaka; Cole, Sarah E.; Shah, Ravi Vikram; Fukumoto, Yoshihiro; Libby, Peter; Mitchell, Richard N. (Oxford University Press (OUP), 2004)Interferon-γ (IFN-γ), a cytokine produced primarily by T cells and by activated macrophages, plays a central role in the pathogenesis of graft arterial disease (GAD). This study investigated whether T cells can induce GAD ...