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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 | Removal of Cu^2+ Ions from Aqueous Solutions by Adsorption on Libyan Soil显示文摘 | A.Y. Okasha H.G. Ibrahim | 2010 | Journal of Environmental Science and Engineering2010，4，10： | 3 |
| 3 | Emissions of SO2, NOx and PMs from Cement Plant in Vicinity of Khoms City in Northwestern Libya显示文摘 | Hesham G. Ibrahim Aly Y. Okasha Mokhtar S. Elatrash Mohamed A. Al-Meshragi | 2012 | Journal of Environmental Science and Engineering(A)2012，1，5： | 2 |
| 4 | Life course exposure and later disease: a follow-up study based on medical examinations carried out in Glasgow University (1948-68)显示文摘 | McCarron P Smith GD Okasha M | 1999 | Public Health1999，113，6： | 1 |
| 5 | Verificationism,Realism and Scepticism显示文摘 | Samir Okasha | 2001 | Erkenntnis2001，，55： | 1 |
| 6 | Prevalence of HCV infections among hemodialysis patients in AI Gharbiyah Governorate, Egypt 显示文摘 | Khodir SA Alghateb M Okasha KM | 2012 | J Nephrol Transplant2012，5，3： | 1 |
| 7 | Novel approach for multicriteria optimization of life-cycle preventive and essential maintenance of deteriorating structures 显示文摘 | Nader M Okasha Dan M Frangopol | 2010 | Journal of Structural Engineering2010，136，8： | 1 |
| 8 | Lifetime-oriented multi- objective optimization of structural maintenance considering system reliability, redundancy and life-cycle cost using GA 显示文摘 | OKASHA N M FRANGOPOL D M | 2009 | Structural Safety2009，31，6： | 1 |
| 9 | A compara- tive study of endoscopic ultrasonography versus endoscopic ret- rograde cholangiopancreatography in children with chronic liv- er disease显示文摘 | E1-Karaksy HM E1-Koofy NM Okasha H | 2008 | Indian J Med Sci2008，62，9： | 1 |
| 10 | The FOUR score predicts mortality, endotracheal intubation and ICU length of stay after traumatic brain injury 显示文摘 | Okasha AS Fayed AM Saleh AS | 2014 | Neurocrit Care2014，21，3： | 1 |
| 11 | Diagnosis of spontaneous bacterial peritonitis in infants and children with chronic liver disease:A cohort study显示文摘 | El-Shabrawi MH EI-Sisi O Okasha S | 2011 | Ital J Pediatr2011，37，11： | 1 |
| 12 | Integration of structural health monitoring in life-cycle performance assessment of ship structures under uncertainty显示文摘 | Okasha N M Frangopol D M Decb A | 2010 | Marine Structures2010，23，： | 1 |
| 13 | Redundancy of structural systems with and without maintenance: An approach based on lifetime functions 显示文摘 | OKASHA N M FRANGOPOL D M | 2010 | Reliability Engineering and System Safety2010，95，5： | 1 |
| 14 | Integration of structural health monitoring in life-cycle performance as-sessment of ship structures under uncertainty显示文摘 | OKASHA N M FRANGOPOL D M DECò A | | 0，，03： | 1 |
| 15 | Preparation and characterization of nanometric Mn ferrite via different methods 显示文摘 | Ahmed M A Okasha N El-Dek S I | 2008 | Nanotechnology2008，19，06： | 1 |
| 16 | Cortical and central atrophy in chronic shizophrenia: a controlled study 显示文摘 | Okasha | 1982 | Acta Psychiatr Scand1982，65，： | 1 |
| 17 | Role of endoscopic ultrasound and endoscopic ultrasound-guided tissue acquisition in diagnosing hepatic focal lesions显示文摘BACKGROUND Endoscopic ultrasonography(EUS)has become an established method in diagnostic and therapeutic procedures in gastroenterology;however,it has recently gained a growing role in hepatology.AIM To evaluate the role of EUS features,strain elastography(SE),and EUS-tissue acquisition in diagnosing hepatic focal lesions(HFLs)that could affect further management.METHODS This cross-sectional study included 215 patients with pancreatic,biliary,or gastrointestinal malignancies referred for EUS examination.HFLs were identified in 43 patients(20%),and EUSguided tissue acquisition was performed from these lesions.RESULTS EUS features were highly sensitive(100%)but much less specific(57%)in diagnosing HFLs;the overall accuracy was 94%.Real-time elastography was also very sensitive(97%)but less specific(67%)in diagnosing HFLs;however,the overall accuracy was 92%.EUS tissue acquisition was extremely sensitive(100%)and specific(100%),with a 100%overall diagnostic accuracy.CONCLUSION The diagnostic utility of EUS-guided tissue acquisition was extremely accurate in diagnosing HFLs.EUS characteristics and real-time SE accurately predicted the histological diagnosis of both benign and malignant HFLs. | Hussein Hassan Okasha Hanane Delsa Abdelmoneim Alsawaf Ahmed Morad Hashim Hani M Khattab Dalia Abdelfatah Abeer Abdellatef Amr Albitar | 2023 | World Journal of Methodology2023，13，4： | 1 |
| 18 | Role of endoscopic ultrasound in evaluation of patients with missed common bile duct stones显示文摘BACKGROUND Choledocholithiasis develops in up to 20%of patients with gall bladder stones.The challenge in diagnosis usually occurs with small stones that may be missed by magnetic resonance cholangiopancreatography(MRCP).Endoscopic ultrasound(EUS)is accurate in detecting common bile duct(CBD)stones missed by MRCP,especially the small ones or those impacted at the distal CBD or the papillary region.AIM To evaluate the accuracy of EUS in detecting CBD stones missed by MRCP.METHODS Patients with an intermediate likelihood of choledocholithiasis according to ESGE guidelines and those with acute pancreatitis of undetermined cause were included.The presence of choledocholithiasis was evaluated by MRCP and EUS,and then results were confirmed by endoscopic retrograde cholangiopancreatography(ERCP).The sensitivity and specificity of EUS and MRCP were compared regarding the presence of stones,the size,and the number of detected stones.RESULTS Ninety out of 100 involved patients had choledocholithiasis,while ten patients were excluded as they had pancreatic or gall bladder masses during EUS examination.In choledocholithiasis patients,the mean age was 52.37±14.64 years,and 52.2%were males.Most patients had biliary obstruction(74.4%),while only 23(25.6%)patients had unexplained pancreatitis.The overall prevalence of choledocholithiasis was 83.3%by EUS,41.1%by MRCP,and 74.4%by ERCP.Also,the number and size of CBD stones could be detected accurately in 78.2%and 75.6%by EUS and 41.1%and 70.3%by MRCP,respectively.The sensitivity of EUS was higher than that of MRCP(98.51%vs 55.22%),and their predictive value was statistically different(P<0.001).Combination of both tools raised the sensitivity to 97.22%and specificity to 100%.CONCLUSION EUS could be a useful tool in assessing patients with suspected choledocholithiasis especially if combined with MRCP.However,its usefulness depends on its availability and the experience of the local centers. | Mohamed Eissa Hussein Hassan Okasha Mohamed Abbasy Ahmed Kamal Khamis Abeer Abdellatef Mohamed Akl Rady | 2022 | World Journal of Gastrointestinal Endoscopy2022，14，9： | 1 |
| 19 | Measuring the technical efficiency of psychiatric hospitals显示文摘 | Ozcan Yasar A Michael J McCue Okasha A A | 1996 | Journal of Medical Systems1996，20，3： | 1 |
| 20 | Role of Ultrasound Elastography in Prediction of Malignancy in Thyroid Nodules显示文摘 | Mona Mansor Hussein Okasha Serag Esmat Ahmed Murad Hashem Khaled A. Attia Hossam El-din Hussein | 2012 | Endocrine Research2012，，2： | 1 |
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