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Imaging features and management of focal liver lesions

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World Journal of Radiology 2024年第6期16卷 139-167页

作者： Gökhan Kahraman Kemal Murat Haberal osman nuri dilek Department of Radiology Suluova State HospitalAmasya 05500Türkiye Department of Radiology Başkent University Faculty of MedicineAnkara 06490Türkiye Department of Surgery İzmir Katip Celebi UniversitySchool of Medicineİzmir 35150Türkiye

Notably,the number of incidentally detected focal liver lesions(FLLs)has increa-sed dramatically in recent years due to the increased use of radiological *** diagnosis of FLLs can be made through a well-documented medical history,physical examination,laboratory tests,and appropriate imaging *** benign FLLs are more common than malignant ones in adults,even in patients with primary malignancy,accurate diagnosis of incidental FLLs is of utmost clinical *** clinical practice,FLLs are frequently evaluated non-invasively using ultrasound(US),computed tomography(CT),and magnetic resonance imaging(MRI).Although US is a cost-effective and widely used imaging method,its diagnostic specificity and sensitivity for FLL characterization are *** are primarily characterized by obtaining enhancement patterns through dynamic contrast-enhanced CT and *** is a problem-solving method with high specificity and sensitivity,commonly used for the evaluation of FLLs that cannot be characterized by US or *** technical advancements in MRI,along with the use of hepatobiliary-specific MRI contrast agents,have significantly improved the success of FLL characterization and reduced unnece-ssary *** American College of Radiology(ACR)appropriateness criteria are evidence-based recommendations intended to assist clinicians in selecting the optimal imaging or treatment option for their *** Appropriateness Criteria Liver Lesion-Initial Characterization guideline provides recommend-ations for the imaging methods that should be used for the characterization of incidentally detected FLLs in various clinical *** American College of Gastroenterology(ACG)Clinical Guideline offers evidence-based recommend-ations for both the diagnosis and management of *** Association for the Study of Liver Diseases(AASLD)Practice Guidance provides an approach to the diagnosis and management of patients with hepatocellular *** th

关键词： Focal liver lesions Imaging Ultrasonography Computed tomography Magnetic resonance imaging Management

Are all primary omental infarcts truly idiopathic?Five case reports

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World Journal of Clinical Cases 2024年第24期12卷 5596-5603页

作者： Haldun Kar Danial Khabbazazar Nihan Acar Şebnem Karasu Halis Bağ Fevzi Cengiz osman nuri dilek Department of General Surgery Katip Celebi University Ataturk Training and Research Hospitalİzmir 35150Türkiye Department of Radiology İzmir Katip Celebi UniversitySchool of Medicineİzmir 35150Türkiye Department of Surgery İzmir Katip Celebi UniversitySchool of Medicineİzmir 35150Türkiye

BACKGROUND Idiopathic omental infarction(IOI)is challenging to diagnose due to its low incidence and vague *** differential diagnosis also poses difficulties because it can mimic many intra-abdominal organ *** hypercoagulability and thrombosis are among the causes of omental infarction,venous thromboembolism scanning is rarely performed as an etiological *** SUMMARY The medical records of the 5 cases,who had the diagnosis of IOI by computed tomography,were *** majority of the patients were male(n=4,80%)and the mean age was 31 years(range:21-38).The patients had no previous abdominal surgery or a history of any chronic *** main complaint of all patients was persistent abdominal *** infarction was detected in all patients with contrast-enhanced computed *** treatment was initially preferred in all patients,but it failed in 1 patient(20%).After discharge,all patients were referred to the hematology department for thrombophilia *** 1 patient applied for thrombophilia screening and was homozygous for methylenetetrahydrofolate reductase(A1298C mutation)and heterozygous for a factor V Leiden *** IOI should be considered in the differential diagnosis in patients presenting with progressive and/or persistent right side abdominal *** risk factors such as hypercoagulability in patients with IOI is also important in preventing future conditions related to venous thromboembolism.

关键词： Omental infarction Acute abdominal pain Thrombophilia screening Factor V Leiden Methylenetetrahydrofolate reductase Case report

Dealing with hepatic artery traumas:A clinical literature review

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World Journal of Clinical Cases 2021年第28期9卷 8425-8440页

作者： osman nuri dilek Arif Atay Department of General Surgery Division of Hepatopancreatobiliary Surgeryİzmir Katip Celebi University School of Medicineİzmir 35150Turkey Department of Surgery İzmir Katip Celebi University School of Medicineİzmir 35150Turkey

BACKGROUND The hepatic artery(HA)is one of the most threatened vascular structures during hepatopancreatobiliary(HPB)surgeries and interventional *** can be affected by many clinical pictures,especially tumors,due to its anatomical position and *** To reveal the evolution and recent developments in the management of HA traumas in the light of the *** In this article,100 years of MEDLINE(PubMed)literature and articles including cases and series of HA injuries were reviewed,and the types of injury occurrence,treatment,and related complications and their management were *** The risk of HA injury increases during cholecystectomies and pancreatoduodenectomies,among the most common *** anatomy shows anomalies in approximately 15%-25%of the cases,further increasing this *** incidence of HA injury is not precisely *** that have evolved in recent years in managing patients with HA injury(laceration,transection,ligation,resection)with severe morbidity and mortality risk are reviewed in light of the current *** In conclusion,complications and deaths due to HA injury are less common *** risk of complications increases in patients with hemodynamic instability,jaundice,cholangitis,and *** the variations in the preoperative radiological evaluation will reduce the *** cases where HA injury is detected,arterial flow continuity should be tried to maintain with primary anastomosis,arterial transpositions,or *** cases where bile duct injury develops,patients should be directed to HPB surgery centers,considering the possibility of accompanying HA ***-scale and multicentric studies are needed to understand better the early and long-term results of HA ligation and determine preventive procedures.

关键词： Hepatic artery Injury Anomaly Ligation Resection Reconstruction

Is omentectomy necessary in the treatment of benign or malignant abdominal pathologies?A systematic review

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World Journal of Gastrointestinal Surgery 2021年第11期13卷 1497-1508页

作者： Arif Atay osman nuri dilek Department of Surgery İzmir Katip Celebi University School of MedicineAtatürk Education and Research Hospitalİzmir 35150Turkey

BACKGROUND The omentum is an organ that is easily sacrificed during abdominal *** scope of omentectomy and whether a routine omentectomy should be performed are still *** To review the literature in order to determine the physiological functions of the omentum and the roles it plays in pathological events in order to reveal the necessity for removal and preservation of the *** A clinical review of the English language literature based on the MEDLINE(PubMed)database was conducted using the keywords:“abdomen”,“gastrointestinal”,“tumor”,“inflammation”,“omental flap”,“metastasis”,“omentum”,and“omentectomy”.In addition,reports were also identified by systematically reviewing all references in retrieved *** The omentum functions as a natural barrier in areas where pathological processes occur in the abdominal *** omentum limits and controls inflammatory and infectious pathologies that occur in the *** also aids in treatment due to its cellular functions including lymphatic drainage and *** shows similar behavior in tumors,but it cannot cope with increasing tumor *** stage of the disease changes due to the tumor mass it tries to ***,it is considered an indicator of poor *** to this feature,the omentum is one of the first organs to be sacrificed during surgical ***,there are many unknowns regarding the role and efficacy of the omentum in *** The omentum is a unique organ that limits and controls inflammatory processes,foreign masses,and lesions that develop in the abdominal *** flaps can be used in all anatomical areas,including the thorax,abdomen,pelvis,and *** omentum is an organ that deserves the title of the abdominal *** is generally accepted that the omentum should be removed in cases where there is tumor ***,the positive or negative contribution of omental resection in the treatment of abdominal path

关键词： Abdomen Inflammation Stomach Omentectomy Omentum Tumor

Role of contrast-enhanced serial/spot abdominal X-rays in perioperative follow-up of patients undergoing abdominal surgery:An observational clinical study

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World Journal of Radiology 2023年第6期15卷 191-200页

作者： osman nuri dilek Arif Atay Orgun Gunes Furkan Karahan Şebnem Karasu Department of Surgery İzmir Katip Celebi UniversitySchool of Medicineİzmir 35150Turkey Department of Surgery İzmir Atatürk Education and Research Hospitalİzmir 35150Turkey Department of Radiology İzmir Katip Celebi UniversitySchool of Medicineİzmir 35150Turkey

BACKGROUND Many imaging methods such as ultrasonography,computed tomography(CT),magnetic resonance imaging,and endoscopy are used to identify the problems or complications that occur in the perioperative period and to determine the appropriate therapeutic *** at surgical clinics and intensive care units sometimes need diagnostic procedures that can give quick results or reveal unexpected *** particular,rapid on-site evaluation of patients followed under intensive care conditions has several *** To determine the problems developing in patients in the perioperative period by contrast-enhanced abdominal X-ray(CE-AXR),revealing their current status or defining the effectiveness of *** The files of the patients who underwent hepatopancreatobiliary or upper gastrointestinal surgery,whose CE-AXR film was taken,were reviewed *** X-ray radiographs taken after ingestion of a watersoluble contrast agent(iohexol,300 mg,50 cc vial)and its application in a drain,nasogastric tube,or stent were *** contribution of the data obtained in patients who underwent CE-AXR to the diagnosis,follow-up,and treatment processes and the effectiveness of the application were *** CE-AXR was applied to 131 patients in our clinic,most of whom underwent hepatopancreatobiliary or upper gastrointestinal *** was determined that the data obtained from CE-AXR films taken in 98(74.8%)of the patients contributed to the diagnosis,treatment,and follow-up expectations and positively affected the clinical *** CE-AXR is a simple procedure that can be applied anywhere,especially in intensive care patients and at bedside,with a portable X-ray *** simplicity of the procedure,less radiation exposure for the patients,less time wastage,reduction in the CT and endoscopy procedure burden and costs,quick results,rapid assessment of the situation,and enabling the monitoring of processes with repetit

关键词： Abdominal X-rays Contrast medium Diagnosis Complication Leakage Radiation exposure

Exploring adoption of augmented reality smart glasses： Applications in the medical industry

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Frontiers of Engineering Management 2018年第2期5卷 167-181页

作者： nuri BASOGLU Muge GOKEN Marina DABIC dilek OZDEMIR GUNGOR Tugrul U. DAIM Izmir Institute of Technology Izmir 35433 Turkey Nottingham Trent University Nottingham UK University of Zagreb Zagreb 10000 Croatia Katib Celebi University Izmir 35620 Turkey Portland State University Portland OR 97201 USA

This study explores the use of augmented reality smart glasses(ARSGs) by physicians and their adoption of these products in the Turkish medical *** Glass was used as a demonstrative example for the introduction of ARSGs. We proposed an exploratory model based on the technology acceptance model by Davis. Exogenous factors in the model were defined by performing semi-structured in-depth interviews, along with the use of an expert panel in addition to the technology adoption literature. The framework was tested by means of a field study, data was collected via an Internet survey, and path analysis was used. The results indicate that there were a number of factors to be considered in order to understand ARSG adoption by *** was influenced by ease of use, compatibility,ease of reminding, and speech recognition, while ease of use was affected by ease of learning, ease of medical education, external influence, and privacy. Privacy was the only negative factor that reduced the perceived ease of use,and was found to indirectly create a negative *** emerged as the most significant external factor for usefulness. Developers of ARSGs should pay attention to healthcare-specific requirements for improved utilization and more extensive adoption of ARSGs in healthcare settings. In particular, they should focus on how to increase the compatibility of ARSGs. Further research needs to be conducted to explain the adoption intention of physicians.

关键词： technology adoption augmented reality smartglasses (ARSGs) healthcare