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| 1 | Role of magnetic resonance imaging in the detection and characterization of solid pancreatic nodules: An update显示文摘Pancreatic ductal adenocarcinoma is the most common malignant tumor of the pancreas. The remaining pancreatic tumors are a diverse group of pancreatic neoplasms that comprises cystic pancreatic neoplasms, endocrine tumors and other uncommon pancreatic tumors. Due to the excellent soft tissue contrast resolution, magnetic resonance imaging(MRI) is frequently able to readily separate cystic from noncystic tumors. Cystic tumors are often easy to diagnose with MRI; however, noncystic non-adenocarcinoma tumors may show a wide spectrum of imaging features, which can potentially mimic ductal adenocarcinoma. MRI is a reliable technique for the characterization of pancreatic lesions. The implementation of novel motionresistant pulse sequences and respiratory gating techniques, as well as the recognized benefits of MR cholangiopancreatography, make MRI a very accurate examination for the evaluation of pancreatic masses. MRI has the distinctive ability of non-invasive assessment of the pancreatic ducts, pancreatic parenchyma, neighbouring soft tissues, and vascular network in one examination. MRI can identify different characteristics of various solid pancreatic lesions, potentially allowing the differentiation of adenocarcinoma from other benign and malignant entities. In this review we describe the MRI protocols and MRI characteristics of various solid pancreatic lesions. Recognition of these characteristics may establish the right diagnosis or at least narrow the differential diagnosis, thus avoiding unnecessary tests or procedures and permitting better management. | Najwa Al Ansari Miguel Ramalho Richard C Semelka Valeria Buonocore Silvia Gigli Francesca Maccioni | 2015 | World Journal of Radiology2015，7，11： | 9 |
| 2 | Biochar from vegetable wastes:agro-environmental characterization显示文摘Considering the global issue of vegetable wastes generation and its impact on the environment and resources,this study evalu-ated the conversion of four largely produced vegetable wastes(cauliflower,cabbage,banana peels and corn cob residues)into biochar.Each waste was tested individually and as a combined blend to assess feedstock influences on biochar properties.In addition,various pyrolysis temperatures ranging from 300℃ to 600℃ and two particle size fractions(less than 75μm,75-125μm)were considered.Biochars were characterized for various properties that can influence the biochars’effective-ness as a soil amendment.It was found that pyrolysis temperature was the most dominant factor on biochar properties,but that individual feedstocks produced biochars with different characteristics.The biochars had characteristics that varied as follows:pH 7.2-11.6,ECE 0.15-1.00 mS cm^(−1),CEC 17-cmolc kg^(−1)andζ-potential−0.24 to−43 mV.Based on optimal values of these parameters from the literature,cauliflower and banana peels were determined to be the best feedstocks,though mixed vegetable waste also produced good characteristics.The optimum temperature for pyrolysis was around 400℃,but differed slightly(300-500℃)depending on the distinct feedstock.However,smaller particle size of biochar application was always optimal.Biochar yields were in the range of 20-30%at this temperature range,except for corn cobs which were higher.This study demonstrates that pyrolysis of dried vegetable wastes is a suitable waste valorization approach to produce biochar with good agricultural properties. | Snigdhendubala Pradhan Ali H.Abdelaal Kamal Mroue Tareq Al‑Ansari Hamish R.Mackey Gordon McKay | 2020 | Biochar2020，2，4： | 3 |
| 3 | Surveillance of patients affected by Peutz-Jeghers syndrome: diagnostic value of MR enterography in prone and supine position显示文摘 | F. Maccioni N. Al Ansari F. Mazzamurro F. Barchetti M. Marini | 2012 | Abdominal Imaging2012，，2： | 3 |
| 4 | Changing patterns of hepatitis A prevalence within the Saudi population over the last 18 years显示文摘AIM: To determine the seroprevalence of Hepatitis A (HAV) amongst Saudi children and compare it with previously reported prevalence data from the same population. METHODS: A total of 1357 students were randomly selected between the ages of 16 and 18 years (689 males and 668 females) from three different regions of Saudi Arabia (Madinah, Al-Qaseem, and Aseer) and tested for anti-HAV-IgG. RESULTS: The overall prevalence of anti-HAV-IgG among the study population was 18.6%. There was no difference between males and females but there was a significant difference in the seroprevalence (P = 0.0001) between the three different regions, with Ma- dinah region showing the highest prevalence (27.4%). When classified according to socioeconomic status, lower class students had a prevalence of 36.6%, lower middle class 16.6%, upper middle class 9.6%, and up- per class 5.9% (P = 0.0001). Comparing the current study results with those of previous studies in 1989 and 1997 involving the same population, there was a marked reduction in the overall prevalence of HAV from 52% in 1989, to 25% in 1997, to 18.6% in 2008 (P < 0.0001). CONCLUSION: Over the last 18 years, there has been a marked decline in the prevalence of HAV in Saudi children and adolescents. The current low prevalence rates call for strict adherence to vaccination policies in high-risk patients and raises the question of a univer- sal HAV vaccination program. | Faleh Al Faleh Suliman Al Shehri Saleh Al Ansari Mohammed Al Jeffri Yaqoub Al Mazrou Ahmad Shaffi Ayman A Abdo | 2008 | World Journal of Gastroenterology2008，14，48： | 2 |
| 5 | Therapy for ventilator-associated pneumonia:what works,what doesn′t显示文摘 | Hijazi M Ansari AL | 2004 | Respir Care Clin N Am2004，10，3： | 1 |
| 6 | Is male fertility associated with type 2 diabetes mellitus显示文摘 | Bener A Al Ansari AA Zirie M | 2009 | Int Urol Nephrol2009，41，4： | 1 |
| 7 | 21 cm ob- servation of LSS at z - 1 instrument sensitivity and fore- ground subtraction 显示文摘 | ANSARI R CAMPAGNE J E COLOM P ct al | 2012 | Astronomy & Astrophys2012，，540： | 1 |
| 8 | Comparison of oral capecitabine versus intravenous fluorouracil plus leucovorin as first-line treatment in 605 patients with metastatic coloreetal cancer: results of a randomized phase 1H study显示文摘 | Hoff PM Ansari R Batist G ct al | 2001 | J Clin Oncol2001，19，8： | 1 |
| 9 | Preoperative T and N staging of gastric cancer:magnetic resonance imaging(MRI)versus multi detector computed tomography(MDCT)显示文摘 | Maccioni F Marcelli G Al Ansari N | | 0，，： | 1 |
| 10 | among hypertensive and nonhypertensive Qatari men 显示文摘 | Bener A Al - Ansari A AI Prevalence of erectile dysfunction Hamaq AO | 2007 | Medicina (Kaunas)2007，43，11： | 1 |
| 11 | Comparison of oral capecitabine versus intravenous fluorouracil plus leucovorin as first-line treatment in 605 patients with metastatic colorectal cancer: results of a randomized phase III study显示文摘 | HOFF P M ANSARI R BATIST G ef al | 2001 | J Clin Oncol2001，19，8： | 1 |
| 12 | Risk factors spontaneous abortion among Saudi woman显示文摘 | al Ansary LA Oni G Babay ZA | 2001 | J Community Health2001，20，6： | 1 |
| 13 | CytokinemRNA expression in postischemjc/reperfused myocardium显示文摘 | Herskowitz A Choi S Ansari AA et al | 1995 | Am J Pathol1995，146，： | 1 |
| 14 | Magnetic resonance cholangiography:past,present and future a review显示文摘 | Maccioni F Martinelli M Al Ansari N | | 0，，08： | 1 |
| 15 | Concentration, composition and sources of PAHs in the coastal sediments of the exclusive economic zone(EEZ) of Qatar, Arabian Gulf显示文摘 | SOLIMAN Y S AL ANSARI E M S WADE T L | 2014 | Marine Pollution Bulletin2014，85，2： | 1 |
| 16 | Some generalizations of Ekeland - type variational principle with applications to equilibrium problems and fixed point theory 显示文摘 | Al - Homidan S Ansari Q H Yao J C | 2008 | Nonlinear Analysis: Theory Methods & Applications2008，69，1： | 1 |
| 17 | Laparoscopic ureteral reimplantation with extracorporeal tailoring for megaureter: a simple technical nuance显示文摘 | Ansari MS Mandhani A Khurana N a al | 2006 | J Urol2006，176，61： | 1 |
| 18 | Surveillance of patients affected by Peutz-Jeghers syndrome:diagnostic value of MR enterography in prone and supine position显示文摘 | Maccioni F Al Ansari N Mazzamurro F | | 0，，02： | 1 |
| 19 | Holmium laser corethrough urethrough for traumatic atic ohliterative strictures of urethra : inital experience显示文摘 | Dogra PN Ansari MS Gupta NP at al | 2004 | Urology2004，64，2： | 1 |
| 20 | Influence of N - Linked Glycosylation of Porcine Reproductive- and Respiratory Syndrome Virus GP5 on Virus Infectivity, Antigenicity, and Ability to Induce Neutralizing Antibodies 显示文摘 | Israrul H Ansari Byungjoon Kwon Femando A Osorio a al | 2006 | Journal of Virology2006，80，8： | 1 |
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