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Comparison of chest CT scan findings between COVID-19 and pulmonary contusion in trauma patients based on RSNA criteria:Established novel criteria for trauma victims

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Chinese Journal of Traumatology 2022年第3期25卷 170-176页

作者： Hossein Abdolrahimzadeh Fard Salahaddin Mahmudi-Azer Qusay Abdulzahraa Yaqoob Golnar Sabetian Pooya Iranpour Zahra Shayan Shahram Bolandparvaz hamid reza Abbasi Shiva Aminnia Maryam Salimi Mohammad Mehdi Mahmoudi Shahram Paydara Roham Borazjani Ali Taheri Akerdi Masome Zare Leila Shayan Mohammadreza Sasani Trauma Research Center Shahid Rajaee(Emtiaz)Trauma HospitalShiraz University of Medical SciencesShirazIran Department of General Surgery Kufa University of Medical SciencesNajafIraq Department of Intensive Care Medicine Trauma Research CenterShahid Rajaee(Emtiaz)HospitalShiraz University of Medical SciencesShirazIran Department of Radiology Medical Imaging Research Center.School of MedicineShiraz University of Medical SciencesShirazIran Department of Biostatistics Trauma Research CenterSchool of MedicineShiraz University of Medical SciencesShirazIran Student Research Committee Shiraz University of Medical SciencesShirazIran Trauma Intensive Care Unit Trauma Research CenterShahid Rajaee(Emtiaz)Trauma HospitalShiraz University of Medical SciencesShirazIran

Propose:In this study,we re-assessed the criteria defined by the radiological society of North America(RSNA)to determine novel radiological findings helping the physicians differentiating COVID-19 from pulmonary ***:All trauma patients with blunt chest wall trauma and subsequent pulmonary contusion,COVID-19-related signs and symptoms before the trauma were enrolled in this retrospective study from February to May *** patients(Group P)were then classified into two groups based on polymerase chain reaction tests(Group Pa for positive patients and Pb for negative ones).Moreover,44 patients from the prepandemic period(Group PP)were *** were matched to Group P regarding age,sex,and trauma-related *** radiologists blindly reviewed the CT images of all enrolled patients according to criteria defined by the RSNA *** radiological findings were compared between Group P and Group PP;statistically significant ones were re-evaluated between Group Pa and Group Pb ***,the sensitivity and specificity of each significant findings were *** Chi-square test was used to compare the radiologica丨findings between Group P and Group ***:In the Group PP,73.7%of all ground-glass opacities(GGOs)and 80%of all multiple bilateral GGOs were detected(p<0.001 and p=0.25,respectively).Single bilateral GGOs were only seen among the Group *** Chi-square tests showed that the prevalence of diffused GGOs,multiple unilateral GGOs,multiple consolidations,and multiple bilateral consolidations were significantly higher in the Group P(p=0.001,0.01,0.003,and 0.003,respectively).However,GGOs with irregular borders and single consolidations were more significant among the Group PP(p=0.01 and 0.003,respectively).Of note,reticular distortions and subpleural spares were exclusively detected in the Group ***:We concluded that the criteria set by RSNA for the diagnosis of COVID-19 are not appropriate in trauma ***

关键词： Chest wall CT Contusion COVID-19 RSNA criteria Trauma

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比较超声波、甲醛和β-巯基乙醇对新城疫病毒灭活中的影响

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中国家禽 2007年第18期 68-68页

作者： Nader Ghaleh Golab Behbahan hamid reza Varshowi Yahya Tahamtan 刘爵施蕾

本试验比较了3种不同的方法灭活新城疫病毒(超声波、甲醛、β—巯基乙醇)。每个阶段所有的 NDV样品和灭活样品都接种 SPF 鸡胚。按照超声波法,标准浓度的 NDV 使用稳定波长和频率的超声波进行辐射,使用10℃、20℃和30℃3个不同的温度。... 详细信息

本试验比较了3种不同的方法灭活新城疫病毒(超声波、甲醛、β—巯基乙醇)。每个阶段所有的 NDV样品和灭活样品都接种 SPF 鸡胚。按照超声波法,标准浓度的 NDV 使用稳定波长和频率的超声波进行辐射,使用10℃、20℃和30℃3个不同的温度。样品每30min 间隔1次,辐射进行120min 后终止。使用了最终浓度为0.5/1 000和1/1 000的甲醛、最终浓度为1/1 000和2/1 000的β—巯基乙醇对病毒的灭活进行

关键词：病毒灭活乙醇酒醇一元醇甲醛脂肪族醛鸡胚超声波电磁波

Anxiety, Depression and Coronary Artery Disease among Patients Undergoing Angiography in Ghaem Hospital, Mashhad, Iran

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Health 2014年第11期6卷 1108-1115页

作者： Mohammad Tajfard Majid Ghayour-Mobarhan hamid reza Rahimi Mohsen Mouhebati Habibollah Esmaeily Gordon A. A. Ferns Latiffah A. Latiff Farzaneh Tajfiroozeh Nagmeh Mokhber Ramin Nazeminezhad Homa Falsoleyman Ali Taghipour Ahmad Fazli Abdul Aziz Rosliza A. Manaf Zahra Saghiri Parichehr Hanachi Brighton & Sussex Medical School Falmer Brighton UK Cardiovascular Research Center School of Medicine Mashhad University of Medical Sciences Mashhad Iran Departemet of Psychiatry School of Medicine Mashhad University of Medical Sciences Mashhad Iran Department of Biology-Biochemistry Faculty of Science Payame Noor University of Mashhad Mashhad Iran Department of Cardiology School of Medicine Mashhad University of Medical Sciences Mashhad Iran Department of Community Health Faculty of Medicine and Health Sciences Universiti Putra Malaysia Serdang Selangor Malaysia Department of Medicine Faculty of Medicine and Health Sciences University Putra Malaysia Serdang Selangor Malaysia Faculty of Science Biology Department Biochemistry Unit Alzahra University Tehran Iran Health Sciences Research Center Department of Biostatistics School of Health Mashhad University of Medical Sciences Mashhad Iran Health Sciences Research Center Department of Health and management School of Health Mashhad University of Medical Sciences Mashhad Iran Student Research Committee Department of Modern Sciences & Technologies School of Medicine Mashhad University of Medical Sciences Mashhad Iran

The prevalence of coronary artery disease (CAD) is increasing in Iran. Patients with depression who have a myocardial infarction are more likely to die and patients who have depressive symptoms during hospitalization may have increased cardiovascular events. This study aimed to determine the relationship between anxiety, depression and coronary artery disease among patients undergoing angiography in Ghaem Hospital, Mashhad. This was a case-control study conducted between September 2011 and August 2012 among patients undergoing coronary angiography in Ghaem Hospital, Mashhad, Iran. There were 486 cases that were found to have one or more coronary stenoses, with a stenosis of equal or more than 50% of the diameter of at least one major coronary artery. The other patient group consisted of the patients in whom the coronary artery stenosis was less than 50% in diameter which was classified as angiography negative, and a control group that consisted of 440 healthy adults aged 18 years old and above who were selected among people who attended for routine medical checkup and medical examination of employment. The dependent variables were Beck Anxiety and Depression Inventory scores and the independent factors were coronary artery disease, and socioeconomic profiles. Validated and reliability-tested questionnaires were used for data collection. The mean age of patients was 55.75 ± 10.64 years and in the healthy group was 55.83 ± 8.55 years;there was no significant difference in age between subject groups (p = 0.897) nor a significant difference in the gender frequency distribution of subjects (p = 0.610). There was a significant difference in anxiety score between the Angio positive and Angio negative patients and healthy control subjects

关键词： Coronary Artery Disease Anxiety Depression Angiography

Role of platelet parameters as a biomarker in diagnosis of acute appendicitis: A retrospective case-controlled study

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Journal of Acute Disease 2019年第4期8卷 153-159页

作者： Seyed hamid Madani Mitra Tarlan Hadi Mozafari Sedigheh Khazaei Farhad Shaveisi-Zadeh Shahab Mozafari Molecular Pathology Research Center Imam Reza HospitalKermanshah University of Medical SciencesKermanshahIran Medical Biology Research Center Kermanshah University of Medical SciencesKermanshahIran Clinical Research Development Center Imam Reza HospitalKermanshah University of Medical SciencesKermanshahIran

Objective: To investigate the diagnostic value of platelet parameters in acute appendicitis. Methods: This retrospective case-controlled study was performed among 200 healthy people and 200 patients with a primary diagnosis of acute appendicitis between October 2017 and June 2018. The patients were classified into three groups: the acute complicated appendicitis (suppurative and gangrenous) group, acute non-complicated appendicitis group and the control group. Red blood cell, white blood cell, lymphocyte, monocyte and platelets count, red blood cell distribution width, hemoglobin, hematocrit, mean platelet volume, platelet distribution width, and C-reactive protein were compared between the groups. Results: Thirty-nine (19.5%) patients with acute appendicitis had no complication and 161 (80.5%) developed a complication. The white blood cell count, neutrophil count and C-reactive protein serum levels were significantly higher, whereas the mean age, lymphocyte count, monocyte count, red blood cell distribution width and platelet count were significantly lower in acute appendicitis patients with and without complications compared with the control group. Moreover, combined analysis of best diagnostic parameters (white blood cell, neutrophil and lymphocyte counts) showed that combined parallel sensitivity and specificity were 98.7% and 42.7%, respectively. Conclusions: White blood cell, lymphocyte counts and neutrophil count could be used for diagnosis of acute appendicitis. More over the utility of mean platelet volume for differential diagnosis might be overestimated.

关键词： Acute appendicitis Diagnosis Complication Mean platelet volume Platelet Distribution width Platelet count

镁基生物陶瓷植入物的生物活性和生物可降解性研究：生物医学的体外应用（英文）

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Journal of Central South University 2024年第9期 2992-3013页

作者： ESMAIELZADEH Omar EIVANI Ali reza MEHDIZADE Maryam TAJALI Nooshin S.H.MOUSAVI ANIJDAN JAFARIAN hamid reza School of Metallurgy and Materials Engineering Iran University of Science and Technology Department of Mechanical and Industrial Engineering University of Toronto

本研究采用搅拌摩擦法制备了添加ZnO、Ca2ZnSi2O7、Ca2MgSi2O7和CaSiO3作为生物活性剂的镁基复合材料。在模拟体液（SBF）中研究了该复合材料的微观结构、体外生物活性、生物降解率和腐蚀行为。结果表明,在SBF中浸泡28 d,由于Ca2+和PO43... 详细信息

本研究采用搅拌摩擦法制备了添加ZnO、Ca2ZnSi2O7、Ca2MgSi2O7和CaSiO3作为生物活性剂的镁基复合材料。在模拟体液（SBF）中研究了该复合材料的微观结构、体外生物活性、生物降解率和腐蚀行为。结果表明,在SBF中浸泡28 d,由于Ca2+和PO43-离子的释放,材料表面沉积了花椰菜状的羟基磷灰石（HA）晶体,证实了该材料具有良好的生物活性。此外,由于生物陶瓷粉末在Mg基体中均匀分布,超过83%的Mg基体晶粒细化,二次相颗粒均匀分布,极化电阻增加,复合材料的生物降解率较Mg基体显著降低。与镁合金相比,Mg-ZnO的极化腐蚀电阻从0.216提高到2.499 kQ/cm2。此外,MgZnO复合材料在浸泡28 d后的失重0.0217 g,随着浸泡时间的延长,失重仍低于其他样品。Mg-ZnO复合材料的生物降解率为37.71 mm/a,随着浸泡时间的延长,较其他样品其生物降解率更低。

关键词：关键词:镁基生物陶瓷骨种植体摩擦搅拌法生物活性体外生物降解生物腐蚀

Fe3O4/活性炭-天然树脂纳米复合材料的电磁波吸收性能（英文）

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新型炭材料(中英文) 2024年第6期 1157-1177页

作者： Mahsa Mahmoodi Bagher Aslibeiki reza Peymanfar hamid Naghshara Rajesh Kumar Rajagopal Yue Zhao Davide Peddis Tapati Sarkar Faculty of Physics University of Tabriz Division of Solid State Physics Department of Materials Science and EngineeringUppsala University Department of Chemical Engineering Energy Institute of Higher Education Iranian Society of Philosophers Department of Science Peykareh Enterprise Development CO. College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Dipartimento di Chimica e Chimica Industriale&INSTM nbM2-LabUniversitàdegli Studi di GenovaVia Dodecaneso 31 Institute of Structure of Matter National Research CouncilnM2-LabVia Salaria km 29300Monterotondo Scalo 00015

近期，迫切需要开发高效的微波吸收材料以降低电磁污染。单一材料通常难以实现优异的吸附性能，本研究探索了由生物材料（沙枣籽）和树脂（杏树胶）衍生的活性炭与Fe3O4的复合材料，以提高复合材料的介电性能并实现高比表面积。1 mm厚的... 详细信息

近期，迫切需要开发高效的微波吸收材料以降低电磁污染。单一材料通常难以实现优异的吸附性能，本研究探索了由生物材料（沙枣籽）和树脂（杏树胶）衍生的活性炭与Fe3O4的复合材料，以提高复合材料的介电性能并实现高比表面积。1 mm厚的Fe3O4/树脂（FEOR）纳米复合材料中，磁性纳米粒Fe3O4子锚定在杏树胶上，注入石蜡后，实现了-71.09 dB的反射损失。将其与由Fe3O4/沙枣籽衍生活性炭组成的纳米复合材料以及具有多孔结构的三组分Fe3O4/活性炭/树脂样品的结果进行对比，发现FEOR的多孔结构对表面极化有直接影响。然而，FEOR样品具有接近理想的阻抗匹配（接近1），这导致了高电磁波吸收性能。此外，材料中的缺陷在通过偶极子极化和电荷载流子捕获而改善了微波衰减。

关键词：活性炭沙枣籽杏树胶磁铁电磁波吸收

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