Search Results - "Razek, Ahmed"

Bioactive secondary metabolites from new endophytic fungus Curvularia. sp isolated from Rauwolfia macrophylla by Kaaniche, Fatma, Hamed, Abdelaaty, Abdel-Razek, Ahmed S, Wibberg, Daniel, Abdissa, Negera, El Euch, Imene Zendah, Allouche, Noureddine, Mellouli, Lotfi, Shaaban, Mohamed, Sewald, Nobert

“…Over the last decades, endophytic fungi represent a new source of pharmacologically active secondary metabolites based on the underlying assumption that they…”
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Characterization of salivary gland tumours with diffusion tensor imaging by Khalek Abdel Razek, Ahmed Abdel

“…To characterize salivary glands tumours with diffusion tensor imaging. This study was conducted upon 53 patients (aged 18-81 years: mean 37 years) with…”
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Routine and Advanced Diffusion Imaging Modules of the Salivary Glands by Abdel Razek, Ahmed Abdel Khalek, MD

“…This article reviews the role of routine and advanced diffusion imaging modules of the salivary glands. Routine and advanced diffusion imaging modules have a…”
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Diffusion tensor imaging in differentiation of residual head and neck squamous cell carcinoma from post-radiation changes by Abdel Razek, Ahmed Abdel Khalek

“…Differentiation between residual head and neck squamous cell carcinoma and post-radiation changes is difficult with routine computed tomography and magnetic…”
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Comparison of ADC values in different malignancies of the skeletal musculature: a multicentric analysis by Surov, Alexey, Nagata, Shuji, Razek, Ahmed A. Abd, Tirumani, Sree Harsha, Wienke, Andreas, Kahn, Thomas

“…Objective Diffusion-weighted imaging (DWI) provides essential information regarding tumor composition, such as cellularity and/or perfusion. DWI is helpful in…”
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Imaging spectrum of CNS vasculitis by Abdel Razek, Ahmed Abdel Khalek, Alvarez, Hortensia, Bagg, Stephen, Refaat, Sherif, Castillo, Mauricio

“…Cerebral vasculitis is characterized by inflammation of the walls of blood vessels and may affect vessels of any size. The pathogenesis of vasculitis remains…”
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Characterization of Parotid Tumors With Dynamic Susceptibility Contrast Perfusion-Weighted Magnetic Resonance Imaging and Diffusion-Weighted MR Imaging by Abdel Razek, Ahmed Abdel Khalek, Samir, Sieza, Ashmalla, Germeen Albair

“…To characterize parotid tumors with dynamic susceptibility contrast perfusion-weighted magnetic resonance (MR) imaging and diffusion-weighted MR imaging…”
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Clinical Applications of Arterial Spin Labeling in Brain Tumors by Abdel Razek, Ahmed Abdel Khalek, Talaat, Mona, El-Serougy, Lamiaa, Gaballa, Gada, Abdelsalam, Mohamed

“…The aim of this review was to review the basic background, technique, and clinical applications of arterial spin labeling in brain tumors. Arterial spin…”
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MRI and CT of nasopharyngeal carcinoma by Abdel Khalek Abdel Razek, Ahmed, King, Ann

“…This article reviews the MRI and CT of nasopharyngeal carcinoma. Extension of nasopharyngeal tumors, especially into the skull base and the deep facial spaces,…”
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State-of-the-Art Imaging of Salivary Gland Tumors by Abdel Razek, Ahmed Abdel Khalek, MD, Mukherji, Suresh K., MD, MBA

“…MR imaging is the modality of choice in evaluation of salivary gland tumors. Postcontrast MR imaging is adequate for exact localization and extension of…”
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Diffusion-weighted MR imaging in thymic epithelial tumors: correlation with World Health Organization classification and clinical staging by Abdel Razek, Ahmed Abdel Khalek, Khairy, Mohamed, Nada, Nadia

“…To assess thymic epithelial tumors with diffusion-weighted magnetic resonance (MR) imaging. Informed consent from patients and institutional review board…”
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Ultrasound of knee osteoarthritis: interobserver agreement and correlation with Western Ontario and McMaster Universities Osteoarthritis by Razek, Ahmed Abdel Khalek Abdel, El-Basyouni, Sherif Refaat

“…The aim of this work was to assess the reproducibility of ultrasound findings of knee osteoarthritis and to correlate ultrasound findings with Western Ontario…”
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Differentiating Glioblastomas from Solitary Brain Metastases Using Arterial Spin Labeling Perfusion− and Diffusion Tensor Imaging−Derived Metrics by Abdel Razek, Ahmed Abdel Khalek, Talaat, Mona, El-Serougy, Lamiaa, Abdelsalam, Mohamed, Gaballa, Gada

“…We sought to differentiate glioblastomas from solitary brain metastasis using arterial spin labeling perfusion (ASL)- and diffusion tensor imaging…”
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Diagnostic accuracy of diffusion tensor imaging in differentiating malignant from benign compressed vertebrae by Razek, Ahmed Abdel Khalek Abdel, Sherif, Fatma Mohamed

“…Purpose To study diagnostic accuracy of diffusion tensor imaging (DTI) in differentiating malignant from benign compressed vertebrae. Methods This study was…”
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Terretonin N: A New Meroterpenoid from Nocardiopsis sp by Hamed, Abdelaaty, Abdel-Razek, Ahmed S, Frese, Marcel, Stammler, Hans Georg, El-Haddad, Atef F, Ibrahim, Tarek M A, Sewald, Norbert, Shaaban, Mohamed

“…Terretonin N ( ), a new highly oxygenated and unique tetracyclic 6-hydroxymeroterpenoid, was isolated together with seven known compounds from the ethyl…”
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Computed tomography and magnetic resonance imaging of congenital thoracic systemic venous anomalies by Batouty, Nihal M., Tawfik, Ahmed M., Sobh, Donia M., Razek, Ahmed A. K. A.

“…We present the imaging findings of thoracic systemic venous anomalies diagnosed by computed tomography and magnetic resonance imaging. Persistent left superior…”
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Whole-Body Computed Tomography Using Low-Dose Biphasic Injection Protocol With Adaptive Statistical Iterative Reconstruction V: Assessment of Dose Reduction and Image Quality in Trauma Patients by Elmokadem, Ali H, Ibrahim, Enas A, Gouda, Walaa A, Razek, Ahmed Abdel

“…This study aimed to evaluate potential dose savings on a revised protocol for whole-body computed tomography and image quality after implementing Adaptive…”
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Arterial spin labeling and diffusion-weighted MR imaging: Utility in differentiating idiopathic orbital inflammatory pseudotumor from orbital lymphoma by Eissa, Lamya, Abdel Razek, Ahmed Abdel Khalek, Helmy, Eman

“…To assess arterial spin-labeling (ASL) and diffusion-weighted imaging (DWI) and in combination for differentiating between idiopathic orbital inflammatory…”
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Diagnostic performance of diffusion-weighted MR imaging in differentiation of diabetic osteoarthropathy and osteomyelitis in diabetic foot by Abdel Razek, Ahmed Abdel Khalek, Samir, Sieza

“…Highlights • Excellent inter-observer agreement of ADC of bony lesions in diabetic foot. • ADC can differentiate diabetic osteoarthropathy from osteomylitis. •…”
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Arterial spin labeling perfusion-weighted MR imaging: correlation of tumor blood flow with pathological degree of tumor differentiation, clinical stage and nodal metastasis of head and neck squamous cell carcinoma by Abdel Razek, Ahmed Abdel Khalek, Nada, Nadia

“…Purpose The prognostic parameters of head and neck squamous cell carcinoma (HNSCC) include the pathological degree of tumor differentiation, clinical staging,…”
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