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Πέμπτη 23 Μαΐου 2019

Prophylaxis in High-Risk Patients With eGFR < 30 mL/min/1.73 m2: Get the Balance Right Objectives... Prophylaxis in High-Risk Patients With eGFR < 30 mL/min/1.73 m2: Get the Balance RightObjectives Clinical guidelines recommend prophylactic intravenous fluids for patients with estimated glomerular filtration rate (eGFR) less than 30 mL/min/1.73 m2 to prevent adverse postcontrast outcomes. These patients... , Preventive Effect of Changing Contrast Media in Patients With A Prior Mild Immediate Hypersensitivity... Preventive Effect of Changing Contrast Media in Patients With A Prior Mild Immediate Hypersensitivity Reaction to Gadolinium-Based Contrast AgentObjectives Currently, the prevention of recurrent immediate hypersensitivity reactions (HSRs) to contrast media (CM) requests premedication and changing the... , Evaluation of Gadopiclenol and P846, 2 High-Relaxivity Macrocyclic Magnetic Resonance Contrast Agents... Evaluation of Gadopiclenol and P846, 2 High-Relaxivity Macrocycl


Prophylaxis in High-Risk Patients With eGFR < 30 mL/min/1.73 m2: Get the Balance Right Objectives...
Prophylaxis in High-Risk Patients With eGFR < 30 mL/min/1.73 m2: Get the Balance RightObjectives Clinical guidelines recommend prophylactic intravenous fluids for patients with estimated glomerular filtration rate (eGFR) less than 30 mL/min/1.73 m2 to prevent adverse postcontrast outcomes. These patients represent a small minority of the population receiving intravascular iodinated contrast material, and data are not readily available. The current study aim is to gain insight into positive and...
Αλέξανδρος Γ. Σφακιανάκης
2m
Preventive Effect of Changing Contrast Media in Patients With A Prior Mild Immediate Hypersensitivity...
Preventive Effect of Changing Contrast Media in Patients With A Prior Mild Immediate Hypersensitivity Reaction to Gadolinium-Based Contrast AgentObjectives Currently, the prevention of recurrent immediate hypersensitivity reactions (HSRs) to contrast media (CM) requests premedication and changing the culprit contrast agent. However, strategies for the prevention of immediate HSRs to gadolinium-based magnetic resonance contrast agents (GBCAs) have not yet been established. This study aimed to evaluate...
Αλέξανδρος Γ. Σφακιανάκης
2m
Evaluation of Gadopiclenol and P846, 2 High-Relaxivity Macrocyclic Magnetic Resonance Contrast Agents...
Evaluation of Gadopiclenol and P846, 2 High-Relaxivity Macrocyclic Magnetic Resonance Contrast Agents Without Protein Binding, in a Rodent Model of Hepatic Metastases: Potential Solutions for Improved Enhancement at Ultrahigh Field StrengthPurpose The aim of this study was to evaluate in vitro and in vivo the enhancement properties of experimental gadolinium (Gd)-based contrast agents (GBCAs) with different molecular weights and hydration numbers (P846 and gadopiclenol) compared with clinically approved...
Αλέξανδρος Γ. Σφακιανάκης
2m
Increased Retention of Gadolinium in the Inflamed Brain After Repeated Administration of Gadopentetate...
Increased Retention of Gadolinium in the Inflamed Brain After Repeated Administration of Gadopentetate Dimeglumine: A Proof-of-Concept Study in Mice Combining ICP-MS and Micro– and Nano–SR-XRFObjectives The aim of this study was to determine in vivo if brain inflammation leads to increased gadolinium (Gd) retention in brain tissue after repeated applications of Gd-based contrast agents (GBCAs). Materials and Methods Experimental autoimmune encephalomyelitis (EAE) was induced in female SJL/J mice...
Αλέξανδρος Γ. Σφακιανάκης
2m
Super-Resolution Contrast-Enhanced Ultrasound Methodology for the Identification of In Vivo Vascular...
Super-Resolution Contrast-Enhanced Ultrasound Methodology for the Identification of In Vivo Vascular Dynamics in 2DObjectives The aim of this study was to provide an ultrasound-based super-resolution methodology that can be implemented using clinical 2-dimensional ultrasound equipment and standard contrast-enhanced ultrasound modes. In addition, the aim is to achieve this for true-to-life patient imaging conditions, including realistic examination times of a few minutes and adequate image penetration...
Αλέξανδρος Γ. Σφακιανάκης
2m
Computer-Aided Diagnosis of Pulmonary Fibrosis Using Deep Learning and CT Images Objectives The objective...
Computer-Aided Diagnosis of Pulmonary Fibrosis Using Deep Learning and CT ImagesObjectives The objective of this study is to assess the performance of a computer-aided diagnosis (CAD) system (INTACT system) for the automatic classification of high-resolution computed tomography images into 4 radiological diagnostic categories and to compare this with the performance of radiologists on the same task. Materials and Methods For the comparison, a total of 105 cases of pulmonary fibrosis were studied...
Αλέξανδρος Γ. Σφακιανάκης
2m
Gadolinium-Based MRI Contrast Agents Induce Mitochondrial Toxicity and Cell Death in Human Neurons,...
Gadolinium-Based MRI Contrast Agents Induce Mitochondrial Toxicity and Cell Death in Human Neurons, and Toxicity Increases With Reduced Kinetic Stability of the AgentObjectives This preclinical study was devised to investigate potential cellular toxicity in human neurons induced by gadolinium-based contrast agents (GBCAs) used for contrast-enhanced magnetic resonance imaging (MRI). Neurons modeling a subset of those in the basal ganglia were tested, because the basal ganglia region is 1 of 2 brain...
Αλέξανδρος Γ. Σφακιανάκης
2m
Imaging Features of Hepatocellular Carcinoma: Quantitative and Qualitative Comparison Between MRI-Enhanced...
Imaging Features of Hepatocellular Carcinoma: Quantitative and Qualitative Comparison Between MRI-Enhanced With Gd-EOB-DTPA and Gd-DTPAObjectives The aim of this study was to compare the major imaging features of hepatocellular carcinoma (HCC) on magnetic resonance imaging (MRI) scans with Gd-EOB-DTPA (EOB) and extracellular agent (ECA; Gd-DTPA) contrast media. Materials and Methods Among 184 surgically proven HCCs in 169 patients who underwent a liver MRI with either EOB (n = 120) or ECA (n = 49),...
Αλέξανδρος Γ. Σφακιανάκης
2m
AcidoCEST-UTE MRI for the Assessment of Extracellular pH of Joint Tissues at 3 T Objectives The goal...
AcidoCEST-UTE MRI for the Assessment of Extracellular pH of Joint Tissues at 3 TObjectives The goal of this study was to demonstrate feasibility of measuring extracellular pH in cartilage and meniscus using acidoCEST technique with a 3-dimensional ultrashort echo time readout (acidoCEST-UTE) magnetic resonance imaging (MRI). Materials and Methods Magnetization transfer ratio asymmetry, radiofrequency (RF) power mismatch, and relative saturation transfer were evaluated in liquid phantoms for iopromide,...
Αλέξανδρος Γ. Σφακιανάκης
2m
Comparison of the Relaxivities of Macrocyclic Gadolinium-Based Contrast Agents in Human Plasma at 1.5,...
Comparison of the Relaxivities of Macrocyclic Gadolinium-Based Contrast Agents in Human Plasma at 1.5, 3, and 7 T, and Blood at 3 TPurpose The relaxivities of 3 macrocyclic gadolinium-based contrast agents (GBCAs) were determined in human plasma and blood under standardized and clinically relevant laboratory conditions. Methods The T1 relaxivity, r1, was determined in human plasma at 1.5, 3, and 7 T, and in human blood at 3 T at 37°C in phantoms containing 4 different concentrations of the macrocyclic...
Αλέξανδρος Γ. Σφακιανάκης
2m
Investigative Radiology
Comparison of the Relaxivities of Macrocyclic Gadolinium-Based Contrast Agents in Human Plasma at 1.5, 3, and 7 T, and Blood at 3 TPurpose The relaxivities of 3 macrocyclic gadolinium-based contrast agents (GBCAs) were determined in human plasma and blood under standardized and clinically relevant laboratory conditions. Methods The T1 relaxivity, r1, was determined in human plasma at 1.5, 3, and 7 T, and in human blood at 3 T at 37°C in phantoms containing 4 different concentrations of the macrocyclic...
Αλέξανδρος Γ. Σφακιανάκης
2m
Ear and Hearing
The Revised Hearing Handicap Inventory and Screening Tool Based on Psychometric Reevaluation of the Hearing Handicap Inventories for the Elderly and AdultsObjectives: The present study evaluates the items of the Hearing Handicap Inventory for the Elderly and Hearing Handicap Inventory for Adults (HHIE/A) using Mokken scale analysis (MSA), a type of nonparametric item response theory, and develops updated tools with optimal psychometric properties. Design: In a longitudinal study of age-related hearing...
Αλέξανδρος Γ. Σφακιανάκης
2m
Surgical Sciences
Assessment of some biomarkers of inflammation in breast cancer patients in Benin City, NigeriaEboreime Ofunre, Atoe Kenneth, Idemudia Joseph OsagieNigerian Journal of Surgical Sciences 2017 27(2):33-36Introduction: Inflammation has been shown to play a major role in the pathogenesis of most malignancies including breast cancer. The inflammatory basis of breast cancer has not been evaluated in our environment. Objective: The purpose of this study is to determine the level of some biomarkers of systemic...
Αλέξανδρος Γ. Σφακιανάκης
2m
Hysterosalpingographic findings in women with infertility in Awka, Anambra State, South-East Nigeria...
Hysterosalpingographic findings in women with infertility in Awka, Anambra State, South-East NigeriaSamuel Iloraah Udobi, Michael Echeta AronuNigerian Journal of Surgical Sciences 2017 27(2):47-50Background: Infertility is a major concern among couples in our environment. Hysterosalpingography (HSG) is a radiological procedure used to investigate women with infertility. It can be used to assess the cervical canal, the uterine cavity, and the fallopian tubes in these women. So far, the pattern of...
Αλέξανδρος Γ. Σφακιανάκης
2m
Prostatic adenocarcinoma and prostatic intraepithelial neoplasia: A tale of the autopsy model in a...
Prostatic adenocarcinoma and prostatic intraepithelial neoplasia: A tale of the autopsy model in a Nigerian tertiary hospitalDele Eradebamwen Imasogie, Akhator Terence AzekeNigerian Journal of Surgical Sciences 2017 27(2):41-46Introduction: The frequency of clinical prostatic adenocarcinoma and high-grade prostatic intraepithelial neoplasia (HGPIN) in a certain population could be similar to the prevalent model of latent adenocarcinoma as well as to the frequency and extent of HGPIN. The aim of this...
Αλέξανδρος Γ. Σφακιανάκης
2m
Cervical cancer: Risk factors and uptake of screening among expectant mothers in Abakaliki Glory I...
Cervical cancer: Risk factors and uptake of screening among expectant mothers in AbakalikiGlory I Urom, Emeka O Omabe, Nkechi J Okoli, Ndubuisi S Eze, Ben N Azuogu, Odidika U J UmeoraNigerian Journal of Surgical Sciences 2017 27(2):37-40Context: cancer remains the most common reason for death from gynaecological malignancy in Nigeria while screening remains opportunistic. Pregnancy provides a veritable ample opportunity for screening for this malignancy. Aim: to evaluate the risk factors for cervical...
Αλέξανδρος Γ. Σφακιανάκης
2m
Assessment of some biomarkers of inflammation in breast cancer patients in Benin City, Nigeria Eboreime...
Assessment of some biomarkers of inflammation in breast cancer patients in Benin City, NigeriaEboreime Ofunre, Atoe Kenneth, Idemudia Joseph OsagieNigerian Journal of Surgical Sciences 2017 27(2):33-36Introduction: Inflammation has been shown to play a major role in the pathogenesis of most malignancies including breast cancer. The inflammatory basis of breast cancer has not been evaluated in our environment. Objective: The purpose of this study is to determine the level of some biomarkers of systemic...
Αλέξανδρος Γ. Σφακιανάκης
2m
Carcinogenesis,Immunotherapy in breast cancer
REVIEW ARTICLEJ Carcinog2019,  18:2Immunotherapy in breast cancerSoley Bayraktar1, Sameer Batoo2, Scott Okuno2, Stefan Glück31 Department of Medicine, Division of Medical Oncology and Hematology, Mayo Clinic Health System, Eau Claire, WI, USA; Department of Medicine, Division of Medical Oncology and Hematology, Biruni University School of Medicine, Istanbul, Turkey2 Department of Medicine, Division of Medical Oncology and Hematology, Mayo Clinic Health System, Eau Claire, WI, USA3 Vice President...
Αλέξανδρος Γ. Σφακιανάκης
2m
Carcinogenesis,Assessment and clinicopathological correlation of matrix metalloproteinase 9 expression in nasopharyngeal carcinoma
ORIGINAL ARTICLEJ Carcinog2019,  18:1Assessment and clinicopathological correlation of matrix metalloproteinase 9 expression in nasopharyngeal carcinomaAshok Kumar Das1, Nizara Baishya1, Anupam Sarma2, Amal Chandra Kataki3, Avdesh Kumar Rai4, Chandi Ram Kalita51 Department of Head and Neck Oncology, Dr. B. Borooah Cancer Institute, Guwahati, Assam, India2 Department of Pathology, Dr. B. Borooah Cancer Institute, Guwahati, Assam, India3 Department of Gynae Oncology, Dr. B. Borooah Cancer Institute,...
Αλέξανδρος Γ. Σφακιανάκης
2m

Alexandros Sfakianakis
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