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Low melting point MCP-69, MCP-96, MCP-137, and MCP-200 alloys for radiation protection in radiological and therapeutic processes

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Radiation Medicine and Protection 2022年第4期3卷 175-182页

作者： Michael W.Perrigin Kendall A.Williams Brandon K.Wright Malaika Maqbool Emily Caffrey Remo George Ghafar Ali Muhammad Maqbool Health Physics Program Department of Clinical&Diagnostic SciencesThe University of Alabama at BirminghamBirminghamAL 35294USA Nuclear Medicine and Molecular imaging Sciences Program Department of Clinical&Diagnostic SciencesThe University of Alabama at BirminghamBirminghamAL 35294USA iomedical Sciences Program Department of Clinical&Diagnostic SciencesThe University of Alabama at BirminghamBirminghamAL 35294USA Nanomaterials Research Group Physics DivisionPINSTECHIslamabadPakistan

Objective To evaluate the low melting-point MCP-69,MCP-96,MCP-137,and MCP-200 alloys,and characterize them for their potential to protect from the harms associated with radiation and eliminate radiation hazards during radiological procedures and treatment of *** The Klein-Nishina formula was used to calculate the electronic and atomic cross-sections of these alloys using photon beams with energies 4,6,9,12,and 18*** transfer coefficients,Compton mass attenuation coefficient,mass-energy transfer coefficient,and recoil energy of electrons in the specific photon energies of 4–18MeV were *** alloys'effective charge number and the photon energy were key factors in determining the properties found by utilizing the Klein-Nishina formula and Compton *** The cross sections and energy transfer coefficients increased with the increasing effective charge number Z of the alloys and decreased as the photon energy *** Compton recoil of the ejected electrons was observed to have a direct relationship with photon energy,but mass-energy transfer decreased with increasing photon *** alloys can replace the toxic lead for environmentally cleaned radiation *** These calculations and characteristics of the MCP alloys can help further determine their viability as materials for radiation shielding,their use in safe cancer diagnosis,treatment,and environmental hazards protection.

关键词： MCP alloys Klein-Nishina formula Cross-sections Radiation shielding Safe cancer diagnosis and treatment

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Decreased cross-sectional muscle area in male patients with clear cell renal cell carcinoma and peritumoral collateral vessels

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World Journal of Radiology 2022年第4期14卷 82-90页

作者： Federico Greco Bruno Beomonte Zobel Carlo Augusto Mallio unitàOperativa Complessa diagnostica per Immagini Territoriale Aziendale Cittadella della Salute Azienda Sanitaria Locale di LecceLecce 73100Italy unit of diagnostic imaging UniversitàCampus Bio-Medico di RomaRome 00128Italy

BACKGROUND Sarcopenia is the loss of skeletal muscle mass(SMM)and is a sign of cancer *** with advanced renal cell carcinoma(RCC)may show *** To evaluate the amount of SMM in male clear cell RCC(ccRCC)patients with and without collateral *** In this study,we included a total of 124 male Caucasian patients divided into two groups:ccRCCa group without collateral vessels(n=54)and ccRCCp group with collateral vessels(n=70).Total abdominal muscle area(TAMA)was measured in both groups using a computed tomography imaging-based *** measures were also corrected for age in order to rule out age-related *** There was a statistically significant difference between the two groups in terms of TAMA(Pdiagnostic clue to sarcopenia.

关键词： Cancer cachexia Body composition Clear cell renal cell carcinoma Collateral vessels Kidney cancer Sarcopenia

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Acute pancreatitis as a clinical presentation of COVID-19 in a patient with HIV infection:a case report

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Gastroenterology Report 2022年第1期10卷 597-599页

作者： Justyna D.Kowalska Carlo Bienkowski Beata Wojtycha-Kwasnica Pawel Uliczny Andrzej Horban Department of Adults’Infectious Diseases Medical University of WarsawHospital for Infectious DiseasesWarsawPoland Department of diagnostic imaging Hospital for Infectious Diseases in WarsawWarsawPoland Emergency Department Hospital for Infectious Diseases in WarsawWarsawPoland

Background Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)occurs mostly as a respiratory tract infection;however,a substantial proportion of patients present with other symptoms[1].In order to enter a cell,the SARS-CoV-2 virus requires an angiotensin-converting enzyme 2(ACE2)transmembrane protein(ACE2 receptor).ACE2 receptors are>100 times more common in the gastrointestinal(GI)tract than in the respiratory tract,and many SARS-CoV-2-infected patients present with GI symptoms[2].In the course of coronavirus disease 2019(COVID-19).

关键词： ACE2 respiratory infection

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Primary acinic cell carcinoma of the breast: A case report and review of literature

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World Journal of Clinical Cases 2024年第1期12卷 196-203页

作者： Jia-Sheng Ding Min Zhang Fang-Fang Zhou Department of Intensive Care unit Lishui Central HospitalThe Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina Department of Pathology Lishui Central HospitalThe Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina Department of Ultrasound Lishui Central HospitalThe Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina

BACKGROUND In the current World Health Organization classification,acinic cell carcinoma(AcCC)of the breast is considered a rare histological subtype of triple-negative breast *** of the few reports in the literature,data concerning clinical outcomes are ***,we report a case of AcCC of the breast in a 48-year-old woman.A 48-year-old woman with a mass in her right breast came to our hospital for further *** and an ultrasound(US)scan showed a mass in the upper inner side of the right *** then underwent surgery to resect the mass in her right *** pathological examination revealed that the tumor had abundant acinar-like structures formed by tumor cells with prominent eosinophilic granules in the cytoplasm,consistent with acinar cell *** results of immunohistochemical analysis supported the diagnosis of breast acinar cell *** months later,she underwent breast-conserving surgery and sentinel lymph node *** pTNM stage was *** surgery,the patient received 30 radiotherapy *** patient was followed up for a period of one year,and no recurrence was *** of the breast is a rare type of malignant *** it is usually asym-ptomatic and can be detected by imaging studies,routine breast US or mamm-ograms are ***,there are no characteristic diagnostic imaging findings or clinical manifestations,so immunohistochemical examination is critical for an accurate diagnosis of AcCC of the breast.

关键词： Acinic cell carcinoma Breast Malignant tumor Immunohistochemical Surgery Case report

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Improving the radiological diagnosis of hepatic artery thrombosis after liver transplantation: Current approaches and future challenges

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World Journal of Transplantation 2024年第1期14卷 1-8页

作者： Cristian Lindner Raúl Riquelme Rodrigo San Martín Frank Quezada Jorge Valenzuela Juan P Maureira Martín Einersen Department of Radiology Faculty of MedicineUniversity of ConcepciónConcepción 4030000Chile Department of Radiology Hospital Clínico Regional Guillermo Grant BenaventeConcepción 4030000Chile Department of Statistics Catholic University of MauleTalca 3460000Chile Neurovascular unit Department of RadiologyHospital Clínico Regional Guillermo Grant BenaventeConcepción 4030000Chile

Hepatic artery thrombosis(HAT)is a devastating vascular complication following liver transplantation,requiring prompt diagnosis and rapid revascularization treatment to prevent graft *** present,imaging modalities such as ultrasound,computed tomography,and magnetic resonance play crucial roles in diagnosing *** imaging techniques have improved sensitivity and specificity for HAT diagnosis,they have limitations that hinder the timely diagnosis of this *** this sense,the emergence of artificial intelligence(AI)presents a transformative opportunity to address these diagnostic *** development of machine learning algorithms and deep neural networks has demonstrated the potential to enhance the precision diagnosis of liver transplant complications,enabling quicker and more accurate detection of *** article examines the current landscape of imaging diagnostic techniques for HAT and explores the emerging role of AI in addressing future challenges in the diagnosis of HAT after liver transplant.

关键词： Liver transplantation Postoperative complications Hepatic artery Thrombosis Radiology Artificial intelligence

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Interictal Electrophysiological Source imaging Based on Realistic Epilepsy Head Model in Presurgical Evaluation:A Prospective Study

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Chinese Journal of Electrical Engineering 2023年第1期9卷 61-70页

作者： Ruowei Qu Zhaonan Wang Shifeng Wang Le Wang Alan Wang Guizhi Xu State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of TechnologyTianjin 300401China Tianjin Universal Medical imaging diagnostic Center Tianjin 300110China Department of Functional Neurosurgery Huanhu HospitalTianjin 300350China Auckland Bioengineering Institute The University of AucklandGraftonAuckland 1010New Zealand

Invasive techniques are becoming increasingly important in the presurgical evaluation of *** the electrophysiological source imaging(ESI)of interictal scalp electroencephalography(EEG)to localize the epileptogenic zone remains a *** accuracy of the preoperative localization of the epileptogenic zone is key to curing *** T1 MRI and the boundary element method were used to build the realistic head *** solve the inverse problem,the distributed inverse solution and equivalent current dipole(ECD)methods were employed to locate the epileptogenic ***,a combination of inverse solution algorithms and Granger causality connectivity measures was *** ECD method exhibited excellent focalization in lateralization and localization,achieving a coincidence rate of 99.02%(p<0.05)with the stereo *** combination of ECD and the directed transfer function led to excellent matching between the information flow obtained from intracranial and scalp EEG *** ECD inverse solution method showed the highest performance and could extract the discharge information at the cortex level from noninvasive low-density EEG ***,the accurate preoperative localization of the epileptogenic zone could reduce the number of intracranial electrode implantations required.

关键词： Epilepsy epileptogenic zone realistic head model functional brain connectivity ESI

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Liver involvement in patients with COVID-19 infection:A comprehensive overview of diagnostic imaging features

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World Journal of Gastroenterology 2023年第5期29卷 834-850页

作者： Davide Ippolito Cesare Maino Federica Vernuccio Roberto Cannella Riccardo Inchingolo Michele Dezio Riccardo Faletti Pietro Andrea Bonaffini Marco Gatti Sandro Sironi Milano Bicocca School of Medicine and Surgery Milano 20126Italy Fondazione IRCCS San Gerardo dei Tintori Monza 20900Italy Institute of Radiology(DIMED) University Hospital of PadovaPadova 35128Italy Section of Radiology-Department of Biomedicine Neuroscience and Advanced Diagnostics(BiND)University of PalermoPalermo 90127Italy Department of Health Promotion Mother and Child CareInternal Medicine and Medical Specialties(PROMISE)University of PalermoPalermo 90127Italy Division of Interventional Radiology Department of RadiologyMadonna delle Grazie HospitalMatera 75100Italy Department of Surgical Sciences University of TurinTurin 10126Italy Department of diagnostic Radiology Papa Giovanni XXIII HospitalBergamo 24127Italy Department of diagnostic Radiology University of TurinTurin 10126Italy

During the first wave of the pandemic,coronavirus disease 2019(COVID-19)infection has been considered mainly as a pulmonary ***,different clinical and radiological manifestations were observed over time,including involvement of abdominal ***,the liver is considered one of the main affected abdominal *** involvement may be caused by either a direct damage by the virus or an indirect damage related to COVID-19 induced thrombosis or to the use of different *** clinical assessment,radiology plays a key role in the evaluation of liver ***(US),computed tomography(CT)and magnetic resonance imaging(MRI)may be used to evaluate liver *** is widely available and it is considered the first-line technique to assess liver involvement in COVID-19 infection,in particular liver steatosis and portal-vein *** and MRI are used as second-and third-line techniques,respectively,considering their higher sensitivity and specificity compared to US for assessment of both parenchyma and *** review aims to the spectrum of COVID-19 liver involvement and the most common imaging features of COVID-19 liver damage.

关键词： Liver Fatty liver Hepatomegaly Hepatic infarction Liver diseases Liver failure Biliary tract diseases COVID-19 SARS-CoV-2 Infection X-Ray computed tomography Magnetic resonance imaging Ultrasonography Adults Pediatrics

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Disharmonious Ventricular Relationship and Topology for the Given Atrioventricular *** diagnostic Approach Using 3D Modeling and Printing

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Congenital Heart Disease 2022年第5期17卷 495-504页

作者： Shi-Joon Yoo Ankavipar Saprungruang Christopher Z.Lam Robert H.Anderson Department of diagnostic imaging Hospital for Sick ChildrenUniversity of TorontoTorontoCanada Division of Cardiology Department of PediatricsLabatt Family Heart CentreHospital for Sick ChildrenUniversity of TorontoTorontoCanada Biosciences Division Newcastle UniversityNewcastle-upon-TyneUK

In the last issue,two case reports separately present examples of the extremely rare and complex congenital heart diseases that show concordant atrioventricular connections to the L-looped ventricles in the presence of situs *** cases highlight that the relationship between the two ventricles within the ventricular mass is not always harmonious with the given atrioventricular *** disharmony between the connections and relationships requires careful assessment of the three basic facets of cardiac building blocks,namely their morphology,the relationship of their component parts,and their connections with the adjacent segments.3D imaging and printing can now facilitate an otherwise difficult diagnosis in such complex *** of either the 3D images or the models permit accurate assessment of the ventricular topologic pattern by creating the right ventricular en-face septal view,thus facilitating placement of the observer’s *** we now emphasize,an alternative approach,which might prove more attractive to imagers,is to rotate the ventricular mass to provide the ventricular apical view,thus permitting determination of the ventricular relationship without using the hands.

关键词： Segmental approach disharmony between connection and relationship ventricular loop pattern ventricular topology juxtaposition of atrial appendages 3D modeling 3D printing

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Quantitative index calculated by ^(99m)Tc-GSA scintigraphy

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Chinese Journal of Cancer Research 2014年第6期26卷 641-643页

作者： Morikatsu Yoshida Shinya Shiraishi Noriko Tsuda Fumi Sakamoto Seiji Tomiguchi Yasuyuki Yamashita Department of diagnostic Radiology Graduate School of Life Sciences Kumamoto University Department of diagnostic Medical imaging School of Health Faculty of Life Sciences Kumamoto University

99mTc-galactosyl human serum albumin（GSA） scintigraphy is useful to evaluate hepatic function and hepatic functional reserve. A reliable SPECT and CT integrated system is now commercially available. Using this system, we can obtain 99mTc-GSA SPECT/CT fused imaging with a small registration error. Therefore, the 99mTc-GSA scintigraphy techniques prove more useful in clinical practice than have been previously reported. In the latest Annals of Surgical Oncology on Oct 2014, the uptake index（UI） values calculated from 99mTc-GSA scintigraphy are reported to be useful for predicting the functional reserve of the future remnant liver. In this paper, we describe the usefulness of 99mTc-GSA scintigraphy as well as some cautions that are necessary as regards using the system.

关键词： 99mTc-GSA scintigraphy SPECT/CT uptake index(UI)

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Progress in interventional radiology treatment of pulmonary embolism:A brief review

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World Journal of Radiology 2022年第8期14卷 286-292页

作者： Alessandro Posa Pierluigi Barbieri Giulia Mazza Alessandro Tanzilli Roberto Iezzi Riccardo Manfredi Cesare Colosimo Department of diagnostic imaging Oncologic Radiotherapy and HematologyFondazione Policlinico Universitario A.Gemelli IRCCSRome 00168Italy

Pulmonary embolism represents a common life-threatening *** identification and treatment of this pathological condition are *** cases of massive pulmonary embolism and hemodynamic instability or right heart failure,interventional radiology treatment for pulmonary embolism is emerging as an alternative to medical treatment(systemic thrombolysis)and surgical *** radiology techniques include percutaneous endovascular catheter directed therapies as selective thrombolysis and thrombus aspiration,which can prove useful in cases of failure or infeasibility of medical and surgical approaches.

关键词： Pulmonary embolism Interventional radiology Thrombolysis Thrombectomy Catheter directed therapy Endovascular

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