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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 | Spatial prediction of landslide susceptibility in western Serbia using hybrid support vector regression(SVR)with GWO,BAT and COA algorithms显示文摘In this study,we developed multiple hybrid machine-learning models to address parameter optimization limitations and enhance the spatial prediction of landslide susceptibility models.We created a geographic information system database,and our analysis results were used to prepare a landslide inventory map containing 359 landslide events identified from Google Earth,aerial photographs,and other validated sources.A support vector regression(SVR)machine-learning model was used to divide the landslide inventory into training(70%)and testing(30%)datasets.The landslide susceptibility map was produced using 14 causative factors.We applied the established gray wolf optimization(GWO)algorithm,bat algorithm(BA),and cuckoo optimization algorithm(COA)to fine-tune the parameters of the SVR model to improve its predictive accuracy.The resultant hybrid models,SVR-GWO,SVR-BA,and SVR-COA,were validated in terms of the area under curve(AUC)and root mean square error(RMSE).The AUC values for the SVR-GWO(0.733),SVR-BA(0.724),and SVR-COA(0.738)models indicate their good prediction rates for landslide susceptibility modeling.SVR-COA had the greatest accuracy,with an RMSE of 0.21687,and SVR-BA had the least accuracy,with an RMSE of 0.23046.The three optimized hybrid models outperformed the SVR model(AUC=0.704,RMSE=0.26689),confirming the ability of metaheuristic algorithms to improve model performance. | Abdul-Lateef Balogun Fatemeh Rezaie Quoc Bao Pham Ljubomir Gigović Siniša Drobnjak Yusuf AAina Mahdi Panahi Shamsudeen Temitope Yekeen Saro Lee | 2021 | Geoscience Frontiers2021，12，3： | 6 |
| 3 | Clinical benefits of biochemical markers of bone turnover in Egyptian children with chronic liver diseases显示文摘AIM: To investigate the association between serum insulin-like growth factor 1 (IGF-1), osteocalcin, and parathyroid hormone (PTH) levels with the etiology and clinical condition of patients with chronic liver disease.METHODS: Eighty children with hepatocellular damage were divided into 3 groups according to the etiology of disease infection: bilharziasis (9 patients), hepatitis B virus (HBV, 12 patients) and hepatitis C virus (HCV, 29 patients). The Child score index was found as A in 24 patients, B in 22 patients, C in 4 patients. Thirty healthy children served as control group. HBsAg, HBcAbIgM, HBcAbIgG, and anti-HCV were detected using ELISA technique. HCV-RNA was measured by reverse transcription polymerase chain reaction (RT-PCR). Anti-bilharzial antibodies were detected by indirect haem- agglutination test. Liver function tests were performed using autoanalyser. Serum IGF-1, osteocalcin and PTH levels were measured by ELISA technique. Abdominal ultrasonography was also conducted.RESULTS: Serum IGF-1 level was significantly lower in all patient groups with liver diseases, while serum osteocalcin and PTH levels were significantly elevated in patients with HBV and HCV infections compared with the control group. Serum osteocalcin and PTH concentrations were measured with the severity of liver disease from Child A to C. Child A patients unexpectedly showed significantly reduced IGF-1 levels in comparison to patients staged as Child B or C. Serum osteocalcin level was negatively correlated with albumin (14.7 ± 0.54 vs 3.6 ± 0.10, P < 0.05), while that for PTH was positivelycorrelated with total protein (70.1 ± 2.17 vs 6.7 ± 0.10, P < 0.05) in patients with HCV infection.CONCLUSION: Low serum IGF-1 level seems to play a critical role in the bone loss in patients with chronic liver disease. Elevated biochemical markers of bone remodeling suggest high-turnover in patients with viral infection and reflect severity of the clinical stage. | Karam A Mahdy Hanaa H Ahmed Fathia Mannaa Azza Abdel-Shaheed | 2007 | World Journal of Gastroenterology2007，13，5： | 3 |
| 4 | Cardiovascular disease risk reduction by raising HDL cholesterol – current therapies and future opportunities显示文摘 | K Mahdy Ali A Wonnerth K Huber J Wojta | 2012 | British Journal of Pharmacology2012，，6： | 2 |
| 5 | Immunophenotypic subtyping of leukemic cells from Iranian patients with acute lymphoblastie leukaemia: association to disease outeome显示文摘 | Hossein A O Mahdi S Tahereh S | 2007 | Iran J Immunol2007，4，1： | 1 |
| 6 | Selenium capture using sorbent powers: mechanism of sorption by hydrated lime显示文摘 | A Ghosh Dastidar S mahdi | 1996 | Environ Sci Technol1996，30，： | 1 |
| 7 | A Comparison of Oven-cured and Induction-cured Adhesively Bonded Composite Joints显示文摘 | Mahdi S Kim H J Gama B A | 2003 | Journal of Composite Materials2003，37，6： | 1 |
| 8 | Acoustic radiation force on a rigid cylinder in a focused Gaussian beam显示文摘 | Mahdi A Mohammad A | 2013 | Journal of Sound and Vibration2013，332，： | 1 |
| 9 | Effect of temperature and ero- sion on pitting corrosion of XlOO steel in aqueous silica slur- ries containing bicarbonate and chloride content显示文摘 | Mahdi E Rauf A Eltai E 0 | 2014 | Corro- sion Science2014，83，6： | 1 |
| 10 | Large Niche Overlaps among Coexistingplant Species in a Limestone Grassland Community 显示文摘 | MAHDI A R LAW &A J WILLIS | 1989 | Journal of Ecology1989，77，： | 1 |
| 11 | Secreted frizzled-related protein 4 reduces insulin secretion and is overexpressed in type 2diabetes显示文摘 | Mahdi T Hanzelmann S Salehi A | 2012 | Cell Metab2012，16，5： | 1 |
| 12 | Production of soluble triggering receptor expressed on myeloid cells by lipopolysaccharide-stimulated human neutrophils involves de novo protein synthesis显示文摘 | MAHDY A M LOWES D A GALLEY H F | 2006 | Clin Vaccine Immunol2006，13，4： | 1 |
| 13 | Reconcene and recon- nect the antioxidant hypothesis in human health and disease显示文摘 | Singh PP Chandra A Mahdi F | 2010 | Indian J Clin Biochem2010，25，3： | 1 |
| 14 | Strip-tillage effect on seedbed soil temperature and other soil physical properties显示文摘 | Mark A L icht Mahdi A - 1 Kaisi | 2005 | Soil & Tillage Re- search2005，80，： | 1 |
| 15 | On the spatial organization of plant species in a limestone grassland community显示文摘 | MAHDI A LAW R | 1987 | Journal of Ecology1987，75，： | 1 |
| 16 | PLL-based ASIC system for DSP real-timeanalogue interface显示文摘 | Mahdi A E Grout I A | 2003 | Microprocessors and Microsystems2003，27，1： | 1 |
| 17 | Overview of acute myocardial infarction(AMI)显示文摘 | Mahdi A | 2000 | Eur Heart2000，21，： | 1 |
| 18 | Towards linking libraires and Wikipedia: automatic subject indexing of library records with Wikipedia concepts显示文摘 | Joorabchi A Mahdi A E | 2014 | Journal of Information Science2014，40，2： | 1 |
| 19 | hybrid stable learning algorithm approaches and stability analysis of training methods显示文摘 | Shooreh Deli Mahdi Identification using A Aliyari Teshnehlab NFIS with intelligent | 2009 | Applied Soft Compu- ting2009，9，2： | 1 |
| 20 | Combined myoepithelial carcinoma and myoepithelioma in soft tissue: a ease report and review of the literature 显示文摘 | Mahdi Y Zouaidia F Zouhair A | 2014 | J Med Case Rep2014，8，： | 1 |
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