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Kadah, Y. M., and I. A. Yassine, "Multi-Component Fiber Track Modeling of Diffusion Weighted Magnetic Resonance Imaging Data", Journal of Advanced Research , vol. 1, issue 1, pp. 26-38, 2009.
Kadah, Y. M., A. E. - M. El-Sharkawy, and A. - B. M. Youssef, "Navigator echo motion artifact suppression in synthetic aperture ultrasound imaging", IEEE Transactions on Biomedical Engineering, vol. 52, pp. 127–131, 2005. Abstract
Kadah, Y. M., and A. H. Tewfik, "Waveform and beamform design for Doppler ultrasound vector flow mapping", Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1995. Abstract
Kaddah, M., The role of interleukin 1 beta in differentiating malignant from benign pancreatic cyst, : Faculty of Medicine, Cairo University, 2020.
safy kaddah, and sabah ahmed, "Lifestyle associated diseases and risk of pulmonary hypertension in patients with idiopathic pulmonary fibrosis", Egyptian Journal of Chest Diseases and Tuberculosis, vol. 65, issue 1, pp. 127-133, 2016. ipf_volume_65_issue_1_jaunary_2016_pages_127-133.pdf
Kaddah, N. A., D. A. Saied, H. A. Alwakeel, R. H. Hashem, S. M. Rowizak, and M. A. Elmonem, "Plasma chitotriosidase and carotid intima-media thickness in children with sickle cell disease.", International journal of hematology, 2017 Jul 04. Abstract

The relationship between chronic hemolysis with subsequent iron overload, inflammation, and premature atherosclerosis has been documented in hemolytic anemias, particularly β-thalassemia. However, no such relationship has been established in sickle cell disease (SCD). We sought to evaluate SCD as a risk factor for early vascular insult by measuring carotid intima-media thickness (CIMT) and plasma chitotriosidase and to assess the role of the latter as a potential quantitative indicator of vascular inflammation and atherogenesis. Thirty SCD pediatric patients (3-18 years) and 30 matched controls were enrolled. Full clinical history, with hematological and biochemical parameters, was evaluated. CIMT and chitotriosidase activity were also assessed for all study participants. CIMT values were significantly higher in SCD patients (median 0.42; range 0.32-0.6 mm) compared to controls (0.36; 0.34-0.45 mm), P = 0.03. CIMT correlated positively with age (r = 0.460, P = 0.011), and total number of vascular incidents necessitating hospital admission (r = 0.439, P = 0.015). Similarly, chitotriosidase activity was significantly higher among SCD patients (median 59.6; range 7.3-512 nmol/ml plasma/h) compared to controls (32.7; 6.8-63.1 nmol/ml plasma/h), P < 0.001, and showed a positive correlation with serum ferritin (r = 0.517, P = 0.003) and CIMT (r = 0.535, P = 0.002). SCD children are at risk of developing premature atherogenic changes. Plasma chitotriosidase and CIMT may represent useful predictors of these changes.

Kaddah, N. A., D. A. Saied, H. A. Alwakeel, R. H. Hashem, S. M. Rowizak, and M. A. Elmonem, "Plasma chitotriosidase and carotid intima–media thickness in children with sickle cell disease", International Journal of Hematology, vol. 106, issue 5, pp. 648–654, 2017.
KADDAH, R. A. N. D. A. O., M. haggag, and U. Lotfi, "Impact of geometric concepts in Multislice CT angiography and MRI on surgical outcome of carotid body tumors", The Egyptian Journal of Radiology and Nuclear Medicine , vol. 42, pp. 373-380, 2011. carotid_body_tumors.pdf
Kaddah, N. A., H. D. El Gindi, N. O. Mostafa, A. E. Aziz, M. S. Nevin, and A. H. A. Kamhawy, "ROLE OF HEPCIDIN IN THE PATHOGENESIS OF IRON OVERLOAD IN CHILDREN WITH B-THALASSEMIA.", International Journal of Academic Research, vol. 3, issue 4, 2011. Abstract
safy kaddah, N. Helmy, Y. Akl, H. A. E. Hafez, and H. El Makhzangy, "Chemical Pleurodesis in Patients with Hepatic Hydrothorax; Management, Morbidity and Mortality", Tur Toraks Der, vol. 10, pp. 172-7, 2009.
KADDAH, R. A. N. D. A. O., "Malignant focal brain lesions. Value of \{MRS\} tumour biomarkers in preoperative prediction of grades of malignancy", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 45, no. 4, pp. 1201 - 1208, 2014. AbstractWebsite

AbstractPurpose Our aim is to describe the spectrum of proton-MR spectroscopy in malignant focal brain lesions and to detect grade of malignancy using \{MRS\} tumor biomarkers. Materials and methods 87 patients (63 males and 24 females) with focal brain lesion(s) are included in this study. All had a brain tumor recently diagnosed by \{MRI\} and had received no previous treatment. They were referred to \{MRS\} examination before surgical biopsy and/or resection or radiotherapy. Results In malignant brain tumors, average Cho/NAA ratio was 3.3 ± 0.22, Cho/Cr ratio was 2.95 ± 0.21, MI/NAA ratio was 1.5 ± 0.12, MI/Cr was 0.53 ± 0.11 with lower \{MI\} levels and higher choline levels in more malignant tumours, lipid/lactate peak was detected in brain metastasis and high grade malignant brain tumors. Conclusion Higher Cho/NAA, Cho/Cr and MI/NAA ratios with lower MI/Cr, and high lipid/lactate peak, were most likely to be in high grade malignant brain tumors.

KADDAH, R. A. N. D. A. O., N. O. H. A. A. B. D. E. L. SHAFI, and H. A. N. A. N. DARWISH, "MAGNETIC RESONANCE IMAGING VERSUS ULTRASOUND OF THE HAND AND WRIST IN VERY EARLY, EARLY AND ESTABLISHED RHEUMATOID ARTHRITIS", The Egyptian Journal of Radiology & Nuc. Med., vol. 41, issue 2, pp. 221-230, 2010.
KADDAH, R. A. N. D. A. O., U. Lotfi, M. haggag, and H. A. Ghani, "The role of radiology in the planning management of Klippel Trenaunay Syndrome (KTS)", The Egyptian Journal of Radiology and Nuclear Medicine , 2011. kts_online_final.pdf
safy kaddah, S. Selim, L. Rashed, and M. Noaman, "Circulating fibrocytes are an indicator of severity and exacerbation in chronic obstructive pulmonary disease", ejcdt, vol. 63, pp. 805-813, 2014.
Kaddah, S. N., "One stage repair of intermediate and high anorectal malformations in newborn", Ann Pediatr Surg, vol. 3, pp. 144-149, 2007. Abstract
Kaddah, M., The effect of direct acting antiviral therapy on HCV recurrence post liver transplantation, : Faculty of medicine, Cairo University, 2017.
safy kaddah, and sabah ahmed, "Management of airway foreign body using flexible bronchoscopy: Experience with 80 cases during 2011–2013", Egyptian Journal of Chest Diseases and Tuberculosis , vol. 64, issue 1, pp. 261–267, 2015. 1-s2.0-s0422763814200124-main.pdf
Kaddah, A. M., A. Abdel-Salam, M. S. Farhan, and R. Ragab, "SERUM HEPCIDIN AS DIAGNOSTIC MARKER OF SEVERE IRON OVERLOAD IN BETA-THALASSEMIA MAJOR", Indian journal of pediatricd, 2017. hepcidin_and_tm_article.pdf
KADDAH, R. A. N. D. A. O., and M. E. Khalil, "MR Spectroscopy evaluation of white matter signal abnormalities of different non-neoplastic brain lesions", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 47, issue 1, pp. 233–242, 2016. Abstract


Our aim was to evaluate the efficacy of MR Spectroscopy in characterization of white matter signal abnormalities diagnosed by MRI detect changes in different metabolites and peaks of inflammation.

Patients and methods

93 patients (49 females and 44 males) age ranging from 2 to 63 years with average (37 ± 2.34 years) presented with white matter hyperintense lesions on T2 and T2 FLAIR and/or contrast enhanced T1WI diagnosed on MRI are included our study.


In Infectious group: Average Cho/NAA ratio: 0.79 ± 0.19, Cho/Cr ratio: 0.95 ± 0.17, NAA/Cr 1.89 ± 0.69, in inflammatory group Cho/NAA ratio: 0.65 ± 0.15, Cho/Cr ratio: 0.98 ± 0.29, Average NAA/Cr ratio 1.69 ± 0.19. In ischemic group: Average Cho/NAA ratio: 0.83 ± 0.09, Cho/Cr ratio: 0.81 ± 0.23, Average NAA/Cr 1.54 ± 0.39, in metabolic group: Average Cho/NAA ratio: 0.57 ± 0.13, Cho/Cr ratio: 0.76 ± 0.26; NAA/Cr ratio was 1.73 ± 0.44, in mitochondrial group, Average Cho/NAA ratio: 0.62 ± 0.19, Cho/Cr ratio: 0.54 ± 0.14, NAA/Cr ratio was 1.49 ± 0.59, in inherited dysmyelinating; Cho/NAA ratio: 0.51 ± 0.17, Cho/Cr ratio: 0.63 ± 0.13; Average NAA/Cr ratio was 1.87 ± 0.65. Glutamate and myoinositol peak raised in inflammatory, infectious, metabolic, inherited, and ischemic group mainly in the acute and subacute stage. Amino acids and succinate peak specifically are raised in brain abscesses.


MRS is a noninvasive additional MRI technique to define the nature of non-neoplastic brain lesions. Together with image analysis, it may be the key to etiologic diagnosis or, at least, definition of the group where the lesion is classified, by detecting changes in different metabolites and peaks of inflammation.

Kaddah, N., S. Rizk, A. M. Kaddah, K. Salama, and H. M. Lotfy, "5. Study of possible genetic factors determining the clinical picture of Thalassemia intermedia ", Journal of Medical Sciences, vol. 9, issue 3, pp. 151 – 155, 2009.
KADDAH, R. A. N. D. A. O., M. A. Haggag, and U. Lotfy, "Adult thoracic and abdominal aortic coarctation, combined value of MSCTA and conventional angiography in endovascular management", The Egyptian Journal of Radiology and Nuclear Medicine , vol. 47, issue org/10.1016/j.ejrnm.2016.02.008, pp. 509–520, 2016. Aortic Coarctation 2016
Kaddah, S. N., K. H. K. Bahaa-Aldin, H. F. Aly, and H. S. Hassan, "Congenital duodenal obstruction", Ann Pediatr Surg, vol. 2, issue 2, pp. 130-5, 2006. Abstract