Ahmed M Gharib

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. doi request reprint Coronary artery anomalies and variants: technical feasibility of assessment with coronary MR angiography at 3 T
    Ahmed 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
  2. ncbi request reprint Coronary MR angiography at 3T during diastole and systole
    Ahmed 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
  3. doi request reprint Cardiac magnetic resonance at high field: promises and problems
    Ahmed M Gharib
    Diagnostic Radiology Department and NHLBI, National Institutes of Health, Bethesda, MD 20892, USA
    Curr Probl Diagn Radiol 37:49-56. 2008
  4. pmc The feasibility of 350 μm spatial resolution coronary magnetic resonance angiography at 3 T in humans
    Ahmed M Gharib
    National Institutes of Health, NIDDK, Bethesda, MD 20892, USA
    Invest Radiol 47:339-45. 2012
  5. ncbi request reprint Profile order and time-dependent artifacts in contrast-enhanced coronary MR angiography at 3T: origin and prevention
    Melanie 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
  6. pmc Optimization of coronary whole-heart MRA free-breathing technique at 3 Tesla
    Ahmed M Gharib
    Diagnostic Radiology and NIDDK, NIH, Bethesda, MD 20892, USA
    Magn Reson Imaging 29:1125-30. 2011
  7. doi request reprint Coronary abnormalities in hyper-IgE recurrent infection syndrome: depiction at coronary MDCT angiography
    Ahmed 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
  8. pmc Pulmonary vein morphology by free-breathing whole heart magnetic resonance imaging at 3 Tesla versus breathhold multi-detector computed tomography
    Eszter 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
  9. pmc Hypercortisolism is associated with increased coronary arterial atherosclerosis: analysis of noninvasive coronary angiography using multidetector computerized tomography
    Nicola M Neary
    Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Clin Endocrinol Metab 98:2045-52. 2013
  10. pmc Is arterial wall-strain stiffening an additional process responsible for atherosclerosis in coronary bifurcations?: an in vivo study based on dynamic CT and MRI
    Jacques 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

Collaborators

Detail Information

Publications30

  1. doi request reprint Coronary artery anomalies and variants: technical feasibility of assessment with coronary MR angiography at 3 T
    Ahmed 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...
  2. ncbi request reprint Coronary MR angiography at 3T during diastole and systole
    Ahmed 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...
  3. doi request reprint Cardiac magnetic resonance at high field: promises and problems
    Ahmed 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...
  4. pmc The feasibility of 350 μm spatial resolution coronary magnetic resonance angiography at 3 T in humans
    Ahmed 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)...
  5. ncbi request reprint Profile order and time-dependent artifacts in contrast-enhanced coronary MR angiography at 3T: origin and prevention
    Melanie 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...
  6. pmc Optimization of coronary whole-heart MRA free-breathing technique at 3 Tesla
    Ahmed 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...
  7. doi request reprint Coronary abnormalities in hyper-IgE recurrent infection syndrome: depiction at coronary MDCT angiography
    Ahmed 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
    ..The purpose of this study is to describe the coronary abnormalities in genetically confirmed HIES patients as depicted by coronary MDCT angiography (MDCTA)...
  8. pmc Pulmonary vein morphology by free-breathing whole heart magnetic resonance imaging at 3 Tesla versus breathhold multi-detector computed tomography
    Eszter 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)...
  9. pmc Hypercortisolism is associated with increased coronary arterial atherosclerosis: analysis of noninvasive coronary angiography using multidetector computerized tomography
    Nicola M Neary
    Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Clin Endocrinol Metab 98:2045-52. 2013
    ..However, the causes of these findings remain largely unknown...
  10. pmc Is arterial wall-strain stiffening an additional process responsible for atherosclerosis in coronary bifurcations?: an in vivo study based on dynamic CT and MRI
    Jacques 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...
  11. pmc Coronary artery abnormalities in Hyper-IgE syndrome
    Alexandra 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...
  12. pmc 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 disease
    Khaled 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
    ....
  13. pmc Feasibility of coronary artery wall thickening assessment in asymptomatic coronary artery disease using phase-sensitive dual-inversion recovery MRI at 3T
    Ahmed M Gharib
    Biomedical and Metabolic Imaging Branch, The National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
    Magn Reson Imaging 31:1051-8. 2013
    ....
  14. pmc N-terminal pro-brain natriuretic peptide levels and aortic diameters
    Liat 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...
  15. pmc Aneurysmal dilatation of medium caliber arteries in Turner syndrome
    Pritam 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...
  16. pmc Noninvasive coronary imaging for atherosclerosis in human immunodeficiency virus infection
    Ahmed 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...
  17. ncbi request reprint B1-insensitive T2 preparation for improved coronary magnetic resonance angiography at 3 T
    Reza 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...
  18. pmc Non-calcified coronary plaque volume inversely related to CD4(+) T-cell count in HIV infection
    Horacio 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...
  19. pmc Necrotic core thickness and positive arterial remodeling index: emergent biomechanical factors for evaluating the risk of plaque rupture
    Jacques 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...
  20. pmc The use of 14C-FIAU to predict bacterial thymidine kinase presence: implications for radiolabeled FIAU bacterial imaging
    Kristin L Peterson
    Center for Infectious Disease Imaging, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD 20814 9692, USA
    Nucl Med Biol 40:638-42. 2013
    ..In this study, we wanted to predict the usefulness of radiolabeled FIAU in the detection of bacterial infections commonly occurring in patients with immunodeficiencies, in vitro, prior to attempting in vivo imaging with (124)I-FIAU-PET...
  21. pmc Liver metabolite concentrations measured with 1H MR spectroscopy
    Ronald 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...
  22. doi request reprint High-affinity alphavbeta3 integrin targeted optical probe as a new imaging biomarker for early atherosclerosis: initial studies in Watanabe rabbits
    Julie 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...
  23. pmc A pilot study of the effect of spironolactone therapy on exercise capacity and endothelial dysfunction in pulmonary arterial hypertension: study protocol for a randomized controlled trial
    Jason M Elinoff
    National Institutes of Health, Critical Care Medicine Department, Mark O Hatfield Clinical Research Center, Bethesda, MD 20892, USA
    Trials 14:91. 2013
    ....
  24. pmc High rate of coronary artery abnormalities in adolescents and young adults infected with human immunodeficiency virus early in life
    Irene 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...
  25. ncbi request reprint Coronary artery aneurysms in patients with hyper IgE recurrent infection syndrome
    Jennifer 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...
  26. pmc Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T: feasibility study in patients
    Khaled 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
    ....
  27. pmc Metabolic effects of chronic cannabis smoking
    Ranganath Muniyappa
    Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
    Diabetes Care 36:2415-22. 2013
    ..We examined if chronic cannabis smoking is associated with hepatic steatosis, insulin resistance, reduced β-cell function, or dyslipidemia in healthy individuals...
  28. pmc Dominant gain-of-function STAT1 mutations in FOXP3 wild-type immune dysregulation-polyendocrinopathy-enteropathy-X-linked-like syndrome
    Gulbu Uzel
    Laboratory of Clinical Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892 1684, USA
    J Allergy Clin Immunol 131:1611-23. 2013
    ..The hypermorphic mutations are also associated with arterial aneurysms, autoimmunity, and squamous cell cancers...
  29. pmc Outcomes of spontaneous and assisted pregnancies in Turner syndrome: the U.S. National Institutes of Health experience
    Tracy 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)...
  30. ncbi request reprint Molecular imaging of hepatocellular carcinoma
    Ahmed 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...