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| 1 | Real time endoscopic ultrasound elastography and strain ratio in the diagnosis of solid pancreatic lesions显示文摘AIM To evaluate the accuracy of the elastography score combined to the strain ratio in the diagnosis of solid pancreatic lesions(SPL). METHODS A total of 172 patients with SPL identified by endoscopic ultrasound were enrolled in the study to evaluate the efficacy of elastography and strain ratio in differentiating malignant from benign lesions. The semi quantitative score of elastography was represented by the strain ratio method. Two areas were selected, area(A) representing the region of interest and area(B) representing the normal area. Area(B) was then divided by area(A). Sensitivity, specificity, positive predictive value(PPV), negative predictive value(NPV), and accuracy were calculated by comparing diagnoses made by elastography, strain ratio and final diagnoses.RESULTS SPL were shown to be benign in 49 patients and malignant in 123 patients. Elastography alone had a sensitivity of 99%, a specificity of 63%, and an accuracy of 88%, a PPV of 87% and an NPV of 96%. The best cut-off level of strain ratio to obtain the maximal area under the curve was 7.8 with a sensitivity of 92%, specificity of 77%, PPV of 91%, NPV of 80% and an accuracy of 88%. Another estimated cut off strain ratio level of 3.8 had a higher sensitivity of 99% and NPV of 96%, but with less specificity, PPV and accuracy 53%, 84% and 86%, respectively. Adding both elastography to strain ratio resulted in a sensitivity of 98%, specificity of 77%, PPV of 91%, NPV of 95% and accuracy of 92% for the diagnosis of SPL. CONCLUSION Combining elastography to strain ratio increases the accuracy of the differentiation of benign from malignant SPL. | Hussein Okasha Shaimaa Elkholy Ramy El-Sayed Mohamed-Naguib Wifi Mohamed El-Nady Walid El-Nabawi Waleed A El-Dayem Mohamed I Radwan Ali Farag Yahya El-sherif Emad Al-Gemeie Ahmed Salman Mohamed El-Sherbiny Ahmed El-Mazny Reem E Mahdy | 2017 | World Journal of Gastroenterology2017，23，32： | 11 |
| 2 | Development of an Arabic version of the National Eye Institute Visual Function Questionnaire as a tool to study eye diseases patients in Egypt显示文摘AIM:To develop and test an Arabic version of the National Eye Institute Visual Function Questionnaire-25(NEI-VFQ-25).METHODS:NEI-VFQ-25 was translated into Arabic according to WHO translation guidelines. We enrolled adult consenting patients with bilateral chronic eye diseases who presented to 14 hospitals across Egypt from October to December 2012, and documented their clinical findings. Psychometric properties were then tested using STATA.RESULTS:We recruited 379 patients, whose mean age was(54.5±15)y. Of 46.2% were males, 227 had cataract,31 had glaucoma, 23 had retinal detachment, 37 had diabetic retinopathy, and 61 had miscellaneous visual defects. Non-response rate and the floor and ceiling numbers of the Arabic version(ARB-VFQ-25) were calculated. Internal consistency was high in all subscales(except general health), with Cronbach-α ranging from0.702-0.911. Test-retest reliability was high(intraclass correlation coefficient 0.79).CONCLUSION:RB-VFQ-25 isareliableandvalidtool for assessing visual functions of Arabic speaking patients. However, some questions had high non-response rates and should be substituted by available alternatives. Our results support the importance of including self-reported visual functions as part of routine ophthalmologic examination. | Nizar Saleh Abdelfattah Mohamed Amgad Ahmed A Salama Marina E Israel Ghada A Elhawary Ahmed E Radwan Mohamed M Elgayar Tamer M EL Nakhal Islam T Elkhateb Heba A Hashem Doha K Embaby Amira A Elabd Reem K Elwy Magdi S Yacoub Hamdy Salem Mohamed Abdel-Baqy Ahmad Kassem | 2014 | International Journal of Ophthalmology(English edition)2014，7，5： | 8 |
| 3 | Softwood cuttings for propagation of red alder planting stock显示文摘 | Radwan M A T A Max D W Johnson | 1989 | New For1989，3，： | 1 |
| 4 | The Effectiveness of Explicit Attention to Form in Language Learning显示文摘 | Radwan A A | 2005 | System2005，，33： | 1 |
| 5 | Rapid Eye Movement(REM)sleep behavior disorder:a sleep disturbance affectingmainly older men 显示文摘 | Oksenberg A Radwan H Arons E | 2002 | Isr J Psychiatry Relat Sci2002，39，： | 1 |
| 6 | Lack of correlation between the amplitudes of TRP channel-mediated responses to weak and strong stimuli in intracellular Ca2+ imaging experiments 显示文摘 | Alpizar YA Sanchez A Radwan A | 2013 | Cell Calcium2013，54，： | 1 |
| 7 | Synthesis and Anfimicrobial Activity of Certain New 1,2,4- Triazolo pyrimidine Derivatives 显示文摘 | MOSTAFA Y A H HUSSEIN M A RADWAN A A | 2008 | Arch Pharmacal Res2008，31，3： | 1 |
| 8 | Synthesis of new 2-thiouraeil-5-sulfonamide deriva-fives with biological activity 显示文摘 | Fathalla A Zaghary W A Radwan H H | 2002 | Arch Pharm Res2002，25，： | 1 |
| 9 | Fayek effect of natural antioxidant on oxidative stability of eggs and productive and reproductive performance of laying hens显示文摘 | Radwan N L Hassan R A Qota E M | 2008 | Int J Poult Sci2008，7，2： | 1 |
| 10 | Reducing the metals toxicity in sludge amended soil usingVA mycorrhizae 显示文摘 | Abalel2Aziz R A Radwan S M A Dahdon M S | 1997 | Egyp t J Microbiol1997，，2： | 1 |
| 11 | Motion of free conducting particles in SF6 insulated systems under DC switching voltages 显示文摘 | Radwan R M Morsi R Abd-allah M A | 1994 | IEEE Trans on Dielectrics and Electrical Insulation1994，1，1： | 1 |
| 12 | Value of N-terminal pro brain natriuretic peptide in predicting prognosis and severity of coro- nary artery disease in acute coronary syndrome 显示文摘 | Radwan H Selem A Ghazal K | 2014 | J Saudi Heart Assoc2014，26，4： | 1 |
| 13 | Residual Behaviour of Profenofos on Some Field-grown Vegetables and Its Removal Using Various Washing Solutions and Household Processing显示文摘 | RADWAN M A ABU-ELAMAYEM M M SHIBOOB M H | 2005 | Food and Chemical Toxicology2005，43，： | 1 |
| 14 | intravitreal bevacizumab and aqueous shunting surgery For neovascular glaucoma:safety and efficacy显示文摘 | Eid TM Radwan A el-Manawy W | 2009 | Can J Ophthalmol2009，44，： | 1 |
| 15 | Linear active stabiliza-tion of converter-dominated DC microgrids 显示文摘 | RADWAN A A A MOHAMED Y A I | 2012 | IEEE Transactionson Smart Grid2012，，： | 1 |
| 16 | Evaluation the Improvements in Traffic Operations at a Real-Life Toll Plaza with Electronic Toll Collection显示文摘 | A1-Deek HM AE Radwan A A Mohuammed J G Klodzinski | 1996 | ITS Journal1996，3，3： | 1 |
| 17 | Investigation of static electrification phenomenon due to transformer oil flow in electric power apparatus显示文摘 | Radwan R M E1-Dewieny R M Metwally I A | 1992 | IEEE Transactions on Electrical Insulation1992，27，2： | 1 |
| 18 | Liquid-liquid equilibria for the extraction of aromatics from naphtha reformate by dimethylformamide/ethylene glycol mixed solvent显示文摘 | Radwan G M Fahim M A Almuhtaseb S A | 1997 | Fluid Phase Equilibria1997，129，12： | 1 |
| 19 | Modeling traffic operations at electronic toll collection and traffic management systems 显示文摘 | Zarrillo M L Radwan A E AI-Deek H M | 1997 | Computers & Industrial Engineering1997，33，34： | 1 |
| 20 | A practical approach to a process planning expert system for manufacturing processes 显示文摘 | Radwan A | 2000 | Journal of Intelligent Manufacturing2000，11，1： | 1 |
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