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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 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | Modeling Traffic Operations at Electronic Toll Collection and Traffic Management Systems显示文摘 | Zarrillo M L Radwan A E Al-Deek H M | 1997 | Computers & Industrial Engineering1997，33，3： | 1 |
| 7 | 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 | International Journal of Poultry Science2008，7，2： | 1 |
| 8 | Bus Priority Strategy Justification and Environmental Aspects Journal of Transportation Engineering, 1983 (1): 88-106 显示文摘 | Radwan A E Benevelli D A | 1983 | 1091983，109，： | 1 |
| 9 | Measurement o{ nickel-63 low ac- tivity insamples of metals and alloys with the help of liquid seintillators显示文摘 | RADWAN M PRZYBY1SKA A MYKOWS- KA E | 1981 | Int J Appl RadiatIsot1981，32，： | 1 |
| 10 | Estimating magni- tude and duration of incident delays 显示文摘 | Garib A A E Radwan H AI-Deek | 1997 | Journal of Transportation Engineering1997，123，6： | 1 |
| 11 | Modeling Traffic Accident Occurrence and Involvement 显示文摘 | ABDEL-ATY M RADWAN A E | 2000 | Accident Analysis & Prevention2000，32，5： | 1 |
| 12 | Role of some thiadi- azole derivatives as inhibitors for the corrosion of C- steel in 1 M H2 SO4 显示文摘 | Fouda A S Heakal F E Radwan M S | 2009 | Journal of Applied Electrochemistry2009，39，3： | 1 |
| 13 | Charge controlled memristor-lessmemcapacitor emulator 显示文摘 | FOUDA M E RADWAN A G | 2012 | Electron Lett2012，48，23： | 1 |
| 14 | Estimating magnitude and duration of incident delays显示文摘 | Garib A Radwan A E Al-Deek H | 1997 | Journal of Transportation Engineering1997，123，6： | 1 |
| 15 | Modeling Traffic Ac- cident Occurrence and Involvement显示文摘 | ABDEL M A RADWAN A E | 2000 | Accident Analysis and Prevention2000，32，5： | 1 |
| 16 | Knowledge-based system for adaptivetraffic signal control显示文摘 | Elahi S M Radwan A E Goul K M | 1991 | Transportation Research Record1991，1324，1： | 1 |
| 17 | Physiological and metabolic changes of Cucurbita pepo leaves in response to zucchini yellow mosaic virus (ZYMV) infection and salicylic acid treatments 显示文摘 | Radwan D E Fayez K A Mahmoud S Y | 2007 | Plant Physiol Biochem2007，45，67： | 1 |
| 18 | Protective action of salicylic acid against bean yellow mosaic virus infection in Vicia faba leaves 显示文摘 | Radwan D E Lu G Fayez K A | 2008 | Plant Physiol2008，165，8： | 1 |
| 19 | Traffic signal using mixed controller operations 显示文摘 | Elahi S M Radwan A E Goul K M | 1992 | Journal of Transportation Engineering1992，118，6： | 1 |
| 20 | Estimating magnitude and duration of incident delays显示文摘 | Garib A Radwan A E A1- Deck H | 1997 | Journal of Transportation Engineering1997，123，6： | 1 |
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