Research Topics
Species | Ahmed M GharibSummaryAffiliation: National Institutes of Health Country: USA Publications
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Detail Information
Publications
Coronary artery anomalies and variants: technical feasibility of assessment with coronary MR angiography at 3 TAhmed M Gharib
Department of Diagnostic Radiology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
Radiology 247:220-7. 2008..Findings included aneurysms, ectasia, arteriovenous fistulas, and anomalous origins. The 3D whole-heart acquisitions developed for use with 3 T are feasible for use in the assessment of CAAV...
Coronary MR angiography at 3T during diastole and systoleAhmed M Gharib
National Heart, Lung, and Blood Institute NHLBI, National Institutes of Health NIH, Bethesda, Maryland, USA
J Magn Reson Imaging 26:921-6. 2007..To investigate the impact of end-systolic imaging on quality of right coronary magnetic resonance angiography (MRA) in comparison to diastolic and to study the effect of RR interval variability on image quality...- Cardiac magnetic resonance at high field: promises and problemsAhmed M Gharib
Diagnostic Radiology Department and NHLBI, National Institutes of Health, Bethesda, MD 20892, USA
Curr Probl Diagn Radiol 37:49-56. 2008..This review focuses on the methods to overcome some of these challenges and the current and potential applications of this technology... 
The feasibility of 350 μm spatial resolution coronary magnetic resonance angiography at 3 T in humansAhmed M Gharib
National Institutes of Health, NIDDK, Bethesda, MD 20892, USA
Invest Radiol 47:339-45. 2012..35 × 0.35 × 1.5 mm³ and to (2) investigate the image quality of this technique in healthy participants and preliminarily in patients with known coronary artery disease (CAD)...- Coronary abnormalities in hyper-IgE recurrent infection syndrome: depiction at coronary MDCT angiographyAhmed M Gharib
Department of Radiology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Clinical Research Center, Bethesda, MD 20892, USA
AJR Am J Roentgenol 193:W478-81. 2009..Such an evaluation has potential value in identifying new aspects of this disease and thereby providing better understanding of the pathophysiology of the disorder... - Optimization of coronary whole-heart MRA free-breathing technique at 3 TeslaAhmed M Gharib
Diagnostic Radiology and NIDDK, NIH, Bethesda, MD 20892, USA
Magn Reson Imaging 29:1125-30. 2011..It is possible to attain shorter acquisition windows and a smaller voxel size at 3 T than previously reported at 1.5 T... - Profile order and time-dependent artifacts in contrast-enhanced coronary MR angiography at 3T: origin and preventionMelanie S Kotys
National Heart, Lung, and Blood Institute NHLBI, National Institutes of Health NIH, Bethesda, Maryland 20892 2281, USA
Magn Reson Med 62:292-9. 2009..Acquisition during the brief postinfusion steady-state produces the greatest signal enhancement and minimizes k-space filtering artifacts... - Is arterial wall-strain stiffening an additional process responsible for atherosclerosis in coronary bifurcations?: an in vivo study based on dynamic CT and MRIJacques Ohayon
Laboratory of Integrative Cardiovascular Imaging Science, National Institute of Diabetes Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
Am J Physiol Heart Circ Physiol 301:H1097-106. 2011..3 ± 61.5 and 428.7 ± 181.8 kPa, respectively). These findings suggest that local wall stiffness plays a role in the initiation of atherosclerotic lesions... - Coronary artery abnormalities in Hyper-IgE syndromeAlexandra F Freeman
Immunopathogenesis Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases NIAID, 10 Center Drive, Bethesda, MD 20892 1899, USA
J Clin Immunol 31:338-45. 2011..Coronary artery abnormalities have been reported infrequently. We aimed to determine the frequency and characteristics of coronary artery abnormalities... - Coronary vessel wall 3-T MR imaging with time-resolved acquisition of phase-sensitive dual inversion-recovery (TRAPD) technique: initial results in patients with risk factors for coronary artery diseaseKhaled Z Abd-Elmoniem
Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 10 Center Dr, Bldg 10, Room 3 5340, Bethesda, MD 20892, USA
Radiology 265:715-23. 2012.... - Pulmonary vein morphology by free-breathing whole heart magnetic resonance imaging at 3 Tesla versus breathhold multi-detector computed tomographyEszter Födi
National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
J Magn Reson Imaging 37:846-52. 2013..To compare pulmonary vein and left atrial anatomy using three-dimensional free-breathing whole-heart magnetic resonance imaging (MR) at 3 Tesla (T) and multi-detector computed tomography (MDCT)... - N-terminal pro-brain natriuretic peptide levels and aortic diametersLiat S Gutin
Section on Epigenetics and Development, National Institute of Child Health and Human Development, Bethesda, MD, USA
Am Heart J 164:419-24. 2012..To better understand the pathology and develop tools to monitor the risk of aortic disease, we investigated N-terminal pro-brain natriuretic peptide (BNP) (NT-proBNP) levels in women with TS and healthy female controls... - Aneurysmal dilatation of medium caliber arteries in Turner syndromePritam R Polkampally
National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
Congenit Heart Dis 6:382-3. 2011..We report aneurysmal dilation of medium caliber arteries involving the celiac axis and coronary vessels in two women with Turner syndrome... - B1-insensitive T2 preparation for improved coronary magnetic resonance angiography at 3 TReza Nezafat
Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
Magn Reson Med 55:858-64. 2006..Improved quantitative and qualitative coronary MRA image measurement was achieved using the adiabatic T2 Prep at 3 T... - Noninvasive coronary imaging for atherosclerosis in human immunodeficiency virus infectionAhmed M Gharib
Biomedical and Metabolic Imaging Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
Curr Probl Diagn Radiol 40:262-7. 2011..Application of these techniques may prove very useful in the study of atherosclerosis in many diseases, such as HIV... - Non-calcified coronary plaque volume inversely related to CD4(+) T-cell count in HIV infectionHoracio Duarte
National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
Antivir Ther 17:763-7. 2012..Non-calcified coronary artery plaque (NCAP) might be an important predictor of cardiovascular events; however, few studies have directly measured NCAP in HIV-infected individuals... - Necrotic core thickness and positive arterial remodeling index: emergent biomechanical factors for evaluating the risk of plaque ruptureJacques Ohayon
National Heart, Lung and Blood Institute, NIH, Bldg 10, 10 Center Dr, Bethesda, MD 20892, USA
Am J Physiol Heart Circ Physiol 295:H717-27. 2008..This study demonstrates that plaque instability is to be viewed not as a consequence of fibrous cap thickness alone but rather as a combination of cap thickness, necrotic core thickness, and the arterial remodeling index... - Liver metabolite concentrations measured with 1H MR spectroscopyRonald Ouwerkerk
Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 10 Center Dr, CRC Building 10, Room 3 5340, MSC 1263, Bethesda, MD 20892 1263, USA
Radiology 265:565-75. 2012..To determine the feasibility of measuring choline and glycogen concentrations in normal human liver in vivo with proton (hydrogen 1 [1H]) magnetic resonance (MR) spectroscopy... - High-affinity alphavbeta3 integrin targeted optical probe as a new imaging biomarker for early atherosclerosis: initial studies in Watanabe rabbitsJulie Heroux
Laboratory of Integrative Cardiovascular Imaging Science, National Institute of Diabetes Digestive and Kidney Diseases, Bethesda, MD 20892, USA
Mol Imaging Biol 12:2-8. 2010..The present in vitro study was designed to investigate the possibility of detecting early atherosclerotic plaque by using this ITOP... - Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T: feasibility study in patientsKhaled Z Abd-Elmoniem
Integrative Cardiovascular Imaging Section, The National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
J Comput Assist Tomogr 35:382-6. 2011.... - Coronary artery aneurysms in patients with hyper IgE recurrent infection syndromeJennifer C Ling
National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
Clin Immunol 122:255-8. 2007..Further studies are necessary to determine the incidence, pathogenesis, and optimal therapy of these arterial abnormalities in HIES... - High rate of coronary artery abnormalities in adolescents and young adults infected with human immunodeficiency virus early in lifeIrene J Mikhail
National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD 20892 1662, USA
Pediatr Infect Dis J 30:710-2. 2011..More than 50% of participants (14/27) had evidence of CAA. Individuals had a high rate of CAA, suggesting possible early atherosclerosis... - Outcomes of spontaneous and assisted pregnancies in Turner syndrome: the U.S. National Institutes of Health experienceTracy N Hadnott
Developmental Endocrinology Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892 1103, USA
Fertil Steril 95:2251-6. 2011..To assess fetal and maternal outcomes of pregnancies in women with Turner syndrome (TS)... - Molecular imaging of hepatocellular carcinomaAhmed M Gharib
Department of Radiology, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
Gastroenterology 127:S153-8. 2004..No magic molecular imaging method exists today to accurately detect, characterize, and monitor HCC in vivo...