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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 | Impact of CMMI based software process maturity on COCOMO lI's effort estimation显示文摘 | I Majed AI Yahya | 2010 | The International Arab Journal of Informa- tion Technology2010，7，2： | 1 |
| 3 | Biological Activity Studies of Ancistrocladus tectorius显示文摘 | Said I M Ahmad I B Yahya M D | 2001 | Pharm Biol2001，39，5： | 1 |
| 4 | Effect of solution pH, ionic strength, and temperature on adsorption behavior of reactive dyes on activated carbon显示文摘 | Yahya S Al-Degs Musa I E1-Barghouthi Amjad H El-Sheikh | 2008 | Dyes Pigments2008，77，： | 1 |
| 5 | Effect of solution pH,ionic strength,and temperature on adsorption behavior of reactive dyes on activated carbon显示文摘 | Yahya S Al-Degs Musa I El-Barghouthi Amjad H El-Sheikh | 2008 | Dyes Pigments2008，77，1： | 1 |
| 6 | Adsorption Behavior of Anionic Reactive Dyes on H-type Activated Carbon: Competitive Adsorption and Desorption Studies显示文摘 | Musa I El-Barghouthi Amjad H El-Sheikh Yahya S Al-Degs | 2007 | Separation Science and Technology2007，42，： | 1 |
| 7 | Sorption of Zn (Ⅱ), Pb (Ⅱ), and Co (Ⅱ) using natural sorbents: Equilibrium and kinetic studies 显示文摘 | YAHYA S AL-DEGS MUSA I E1-BARGHOUTHI AYMAN A ISSA | 2006 | Water Research2006，40，： | 1 |
| 8 | A New Look at Fresnel Field Computation Using the Jacobi-Bessel Series 显示文摘 | VICTOR G I YAHYA R S | 1981 | IEEE Trans on Antennas Propag1981，29，6： | 1 |
| 9 | Effect of solution pH ionic strength and temperature on adsorption behavior of reactive dyes on activated carbon显示文摘 | Yahya S Musa I Amjad H | 2008 | Dyes and Pigments2008，77，1： | 1 |
| 10 | A Plane-Po- lar Approach for Far-Field Construction from Near-Field Measurement显示文摘 | YAHYA R S VICIDR G I RAJ MITIRA | 1980 | 1EEE Trans on Antennas and Propaga- tion1980，28，2： | 1 |
| 11 | Effect of solution pH ionic strength and temperature on adsorption behavior of reactive dyes on activated carbon显示文摘 | Yahya S Musa I Amjad H | | 0，，1： | 1 |
| 12 | Serum survivin and TP53 gene expression in children with acute lymphoblastic leukemia显示文摘 | Raida S Yahya Manal I Fouda Hatim A El-Baz | | 0，，01： | 1 |
| 13 | Marginal integrity o{ turkom-cera compared to other all-ceramic materials:effect of finish line显示文摘 | AI-Makraman B M Razak A A Abu-Hassan M I Su- laiman E Loon L I Yahya N A | 2011 | Int J Prosthodont2011，24，： | 1 |
| 14 | The effects of austempering temperature and time onto the machinability of austempered ductile iron显示文摘 | CEMAL C M ALI B YAHYA I | 2005 | Materials Science and Engineering2005，407，： | 1 |
| 15 | Physico-chemical properties and DPPH-ABTS scavenging activity of some local pomegranate ( Punica granatum ) ecotypes 显示文摘 | Elfalleh W Nasri N Marzougui N Thabti I Mrabet A Yahya Y Lachiheb B Guasmi F Ferchichi A | 2009 | International Journal of Food Sciences and Nutrition2009，60，2： | 1 |
| 16 | Effect of solution pH,ionic strength,and temperature on adsorption behavior of reactive dyes on activated carbon显示文摘 | YAHYA S A MUSA I E AMJAD H E | | 0，，01： | 1 |
| 17 | Effect of solution pH, ionic strength, and temperature on adsorption behavior of reactive dyes on activated carbon 显示文摘 | Yahya S A1-Degs Musa I E1-Barghouthi Amjad H E1-Sheikh | 2008 | Dyes and Pig- ments2008，77，： | 1 |
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