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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 | LMI optimization for nonstandard riccati equations arising in stochastic control显示文摘 | RAMI M A GHAOUI L E | 1996 | IEEE Transactions on Automatic Control1996，41，11： | 1 |
| 3 | The Outcome of Closed, Intramedullary Exchange Nailing With Reamed Insertion in the Treatment of Femoral Shaft Nonunions显示文摘 | Josh E Shroeder Rami Mosheiff Amal Khoury Meir Liebergall Yoram A Weil | 2009 | Journal of Orthopaedic Trauma2009，，9： | 1 |
| 4 | Angiotensin Ⅱ stimulates the production of NO and peroxynitrite in endothelial cells显示文摘 | Pueyo M E Arnal J F Rami J | 1996 | Am J Physiol1996，274，11： | 1 |
| 5 | Perinatal risk factors for early childhood onset type 1 diabetes in Austria-a population-based study (1989-2005) 显示文摘 | Waldhoer T Rami B Schober E | 2008 | Pediatr Diabetes2008，9，31： | 1 |
| 6 | Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions 显示文摘 | Bouyarmane H Asri S E Rami A | 2010 | J Hazard Mater2010，181，123： | 1 |
| 7 | Reactivity of V2O5-WO3/TiO2 catalysts in the selective catalytic reduction of nitric oxide by ammonia显示文摘 | LIETTI L ALEMANY J L FORZATTI P BUSCA G RAMIS G GIAMELLO E BREGANI F | 1996 | Catal Today1996，29，14： | 1 |
| 8 | The prevalence of IDDM in the first degree relatives of children newly diagnosed with IDDM in Austria a population-based study显示文摘 | Waldhor T Schober E Rami B | 1999 | Exp Clin Endocrinol Diabetes1999，107，5： | 1 |
| 9 | Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents:Influence ofporosity and surface interactions显示文摘 | Bouyarmane H Asri S E Rami A | 2010 | Journal of Hazardous Materials2010，181，123： | 1 |
| 10 | A multi-period game theoretic model of venturecapitalists and entrepreneurs 显示文摘 | Ramy E Arieh G | 2003 | European Journal of OperationResearch2003，144，2： | 1 |
| 11 | A study on catalytic combustion of chlorobenzenes显示文摘 | FINOCCHIO E RAMIS G BUSCA G | 2011 | Catalysis Today2011，169，1： | 1 |
| 12 | Downregulation of connexin40 and increased preva- lence of atrial arrhythmias in transgenic mice withcardiac-restricted overexpression of tumor necrosis factor显示文摘 | SAWAYA S E RAJAWAT Y S RAMI T G | 2007 | Am J Physiol Heart Circ Physiol2007，292，3： | 1 |
| 13 | EGFR inhibition in glioma cells modulates Rho signaling to inhibit cell motility and invasion and cooperates with temozolomide to reduce cell growth显示文摘 | Ramis G Thomas-Moya E De Mattos SF | 2012 | PLo S One2012，7，38： | 1 |
| 14 | Modelling of a pressure regulator 显示文摘 | Rami E G Jean-Jacques B Bruno D | 2007 | International Journal of Pressure Vessels and Piping2007，84，4： | 1 |
| 15 | A new route for the preparation of the 22,23 - dioxocholestane side chain from diosgenin and its application to the stereocontrolled construction of the 22R ,23S -diol function 显示文摘 | RINCO'N S DEL RI'O R E SANDOVAL - RAMI'REZ J | 2006 | Tetrahedron2006，62，： | 1 |
| 16 | Incidence and time trend of type 1 and type 2 diabetes in Austrian children 1999 -2007 显示文摘 | SCHOBER E WALDHOER T RAMI B | 2009 | J Pediatr2009，155，2： | 1 |
| 17 | Activation, and oxidation of ammonia over SCR catalysts 显示文摘 | Ramis G Yi L Busca G Turco M Kotur E Willey R J | 1995 | Journal of Catalysis1995，157，2： | 1 |
| 18 | EGFR inhibitionin glioma cells modulates Rho signaling to inhibit cell motility andinvasion and cooperates with temozolomide to reduce cell growth 显示文摘 | Ramis G Thomas-Moya E Fernandez DMS | 2012 | PLoS One2012，7，38： | 1 |
| 19 | 显示文摘 | SAMIR B RAMY R HASSAN A E | 2008 | Eur J Med Chem2008，43，10： | 1 |
| 20 | Evaluation of the genotoxic potential of 3-monochloro- propane-l,2-diol(3-MCPD)and its metabolites,glycidol and beta-ehlorolaetic acid,using the single cell gel/comet assay 显示文摘 | Ramy R E Elhkim M O Lezmi S | 2007 | Food Chem Toxieol2007，45，： | 1 |
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