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Diagnostic radiology

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https://www.readbyqxmd.com/read/28651261/evaluation-of-the-value-of-contrast-enhanced-ultrasound-ceus-within-radiology-departments-in-germany
#1
Tilmann Graeter, Wolfgang Kratzer, Thomas Seufferlein, Suemeyra Tasdemir, Aylin Senguel, Julian Schmidberger, Hartmut Graeter, Christian Stroszczynski, Meinrad Beer
Purpose Contrast-enhanced ultrasound (CEUS) has been established for many years and has become an increasingly important cornerstone of the diagnostic imaging of various organ systems. However, this modality is rarely performed by radiologists and is primarily employed by other medical disciplines. The goal of this questionnaire study is to present the current value of CEUS in radiology and to encourage reevaluation of the method within this medical discipline. Materials and Methods 560 directors of radiology departments throughout Germany were contacted and given a 3-page questionnaire...
June 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28650133/imaging-in-primary-hyperparathyroidism-focus-on-the-evidence-based-diagnostic-performance-of-different-methods
#2
Giorgio Treglia, Pierpaolo Trimboli, Martin Huellner, Luca Giovanella
BACKGROUND: Primary hyperparathyroidism (PHPT) is a common endocrine disorder usually due to hyperfunctioning parathyroid glands (HP). Surgical removal of HP is the main treatment in PHPT, particularly in symptomatic patients. The correct detection and localization of HP is challenging and crucial as it may guide surgical treatment in patients with PHPT. To date, different imaging methods have been used to detect and localize HP in patients with PHPT including radiology, nuclear medicine and hybrid techniques...
June 23, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28647936/18f-fdg-pet-ct-pulmonary-infiltrates-in-non-hodgkin-lymphoma-patients-treated-with-combined-immunochemotherapy-incidence-and-clinical-characteristics
#3
Yael C Cohen, Tamar Berger, Lora Eshel, Dorit Stern, Osnat Bairey, Pia Raanani, Ofer Shpilberg
BACKGROUND: Pulmonary infiltrates (PIs) detected in patients with non-Hodgkin lymphoma (NHL) may present a diagnostic challenge due to their wide differential diagnosis, including infection, pulmonary lymphoma and immunochemotherapy-associated pulmonary toxicity. OBJECTIVES: To characterize therapy-associated PIs by positron emission tomography/computed tomography (PET/CT) imaging. METHODS: We conducted a historical analysis of fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) PIs in NHL patients treated with combined immunochemotherapy including rituximab...
June 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28647851/a-questionnaire-survey-of-radiological-diagnosis-and-management-of-renal-dysplasia-in-children
#4
Giovanni Montini, Marco Busutti, Fatos Yalcinkaya, Adrian S Woolf, Stefanie Weber
BACKGROUND: The condition called renal dysplasia is considered to be a frequent cause of chronic kidney disease in children. Formally, it is defined by histological parameters. In current nephrology practice, however, the appearance of the kidneys on ultrasound scanning is often used as a basis for the diagnosis. METHODS: The European Society for Pediatric Nephrology Working Group on Congenital Anomalies of the Kidney and Urinary Tract hypothesized that the current diagnostic approach with regard to renal dysplasia was not homogeneous...
June 24, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28647766/impact-of-patient-questionnaires-on-completeness-of-clinical-information-and-identification-of-causes-of-pain-during-outpatient-abdominopelvic-ct-interpretation
#5
Ankur M Doshi, Chenchan Huang, Luke Ginocchio, Krishna Shanbhogue, Andrew B Rosenkrantz
PURPOSE: To evaluate the impact of questionnaires completed by patients at the time of abdominopelvic CT performed for abdominal pain on the completeness of clinical information and the identification of potential causes of pain, compared with order requisitions alone. METHODS: 100 outpatient CT examinations performed for the evaluation of abdominal pain were retrospectively reviewed. The specificity of the location of pain was compared between the order requisition and patient questionnaire...
June 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28647623/proximal-femoral-osteosarcoma-diagnostic-challenges-translate-into-delayed-and-inappropriate-management
#6
M Dahan, P Anract, A Babinet, F Larousserie, D Biau
BACKGROUND: The proximal femuris an uncommon site of osteosarcoma. The unusual manifestations at this site may lead to diagnostic and therapeutic mistakes. We therefore performed a retrospective studyto estimate the proportions of patients with imaging study findings and/or clinical manifestations typical for osteosarcoma and/or inappropriate treatment decisions. HYPOTHESIS: Proximal femoral osteosarcoma often produces atypical clinical and radiological presentations...
June 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28647206/ct-at-onset-of-chronic-lung-allograft-dysfunction-in-lung-transplant-patients-predicts-development-of-the-restrictive-phenotype-and-survival
#7
Sabine Dettmer, Hoen-Oh Shin, Jens Vogel-Claussen, Max Westphal, Axel Haverich, Gregor Warnecke, Tobias Welte, Frank Wacker, Jens Gottlieb, Hendrik Suhling
PURPOSE: To describe early signs for restrictive subtype of chronic lung allograft dysfunction (CLAD) after lung transplantation in computed tomography (CT) and to evaluate the predictive value for disease progression and survival. MATERIAL AND METHODS: 52 CT examinations in lung transplant patients at CLAD onset were scored for CT features referring to airways disease, parenchymal or pleural abnormality. Patients with and without later development of restrictive CLAD (TLC≤80%) were compared...
June 15, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28646966/a-systematic-approach-to-diagnosing-intra-thoracic-tuberculosis-in-children
#8
Carlos M Perez-Velez, Claudia L Roya-Pabon, Ben J Marais
Children suffer a huge and often underappreciated burden of disease in tuberculosis (TB) endemic countries. Major hurdles include limited awareness among health care workers, poor integration of TB into maternal and child health approaches, diagnostic difficulties and a lack of child-friendly treatment options. Accurate disease diagnosis is particularly difficult in young and vulnerable children who tend to develop paucibacillary disease and are unable to produce an expectorated sputum sample. In addition, access to chest radiography is problematic in resource-limited settings...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28646282/surgery-for-pancreatic-ductal-adenocarcinoma
#9
REVIEW
R Vera, L Díez, E Martín Pérez, J C Plaza, A Sanjuanbenito, A Carrato
Surgical resection is the only potentially curative option in the treatment of pancreatic ductal adenocarcinoma. Preoperative radiological imaging allows to rule out the presence of metastases. Three resectability categories are established based on the radiological findings depending on the degree of contact between the tumor and the blood vessels. Histological confirmation of malignancy is only required in cases of borderline or non-resectable tumors, prior to neoadjuvant treatment initiation. Diagnostic laparoscopy is recommended in the presence of large tumors of the body or tail and in borderline tumors to explore the possibility of resection and to apply treatment with curative intent, as well as in those cases with high level of biomarkers to rule out peritoneal involvement...
June 23, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28644311/hemobilia-an-uncommon-but-notable-cause-of-upper-gastrointestinal-bleeding
#10
Scott Cathcart, John W Birk, Michael Tadros, Micheal Schuster
GOAL AND BACKGROUND: A literature review to improve practitioners' knowledge and performance concerning the epidemiology, diagnosis, and management of hemobilia. STUDY: A search of Pubmed, Google Scholar, and Medline was conducted using the keyword hemobilia and relevant articles were reviewed and analyzed. The findings pertaining to hemobilia etiology, investigation, and management techniques were considered and organized by clinicians practiced in hemobilia. RESULTS: The majority of current hemobilia cases have an iatrogenic cause from either bile duct or liver manipulation...
June 21, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28643545/application-of-intravoxel-incoherent-motion-ivim-magnetic-resonance-imaging-in-the-evaluation-of-primitive-brain-tumours
#11
A Catanese, F Malacario, L Cirillo, F Toni, C Zenesini, D Casolino, A Bacci, R Agati
Intravoxel incoherent motion is a potential non-invasive diagnostic tool in brain tumours, without any clear guidelines for its evaluation yet. In our study, we compare intravoxel incoherent motion with dynamic susceptibility contrast magnetic resonance imaging in the quantification of tumour tissue blood perfusion in 28 patients affected by brain tumours, highlighting the issues encountered during the acquisition set-up and post-processing steps. Intravoxel incoherent motion is a new imaging tool and an alternative technique to dynamic susceptibility contrast-magnetic resonance imaging which is of considerable interest at present...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28642869/detection-of-microrna-in-hepatic-cirrhosis-and-hepatocellular-carcinoma-in-hepatitis-c-genotype-4-in-egyptian-patients
#12
Hala M Demerdash, Hend M Hussien, Ehab Hassouna, Emad A Arida
BACKGROUND: In Egypt, the prevalence of chronic hepatitis C (CHC) infection is 13.8% of whole population and about 80% of the patients with hepatocellular carcinoma have underling hepatitis C. AIM: This study was designed to assess the diagnostic value of plasma miR-122 and miR-21 in patients with CHC, genotype-4, to detect fibrosis progression versus noninvasive indices and their diagnostic value in detection of early stages of hepatocellular carcinoma (HCC). METHODOLOGY: A prospective study that included 180 patients, divided into 3 groups: healthy controls (group I), CHC patients (group II), and hepatitis C patients with HCC (group III); all cases were subjected to thorough clinical, radiological, and laboratory investigations...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28642788/comparison-between-intestinal-beh%C3%A3-et-s-disease-and-crohn-s-disease-in-characteristics-of-symptom-endoscopy-and-radiology
#13
Tianyu Zhang, Liwen Hong, Zhengting Wang, Rong Fan, Maochen Zhang, Yun Lin, Mengmeng Cheng, Xiaolin Zhou, Peijun Sun, Xiaoyi Lin, Jie Zhong
AIM: To evaluate different parameters in differentiating intestinal BD from CD. METHODS: The medical records of inpatients with intestinal BD and CD were retrospectively reviewed. The univariate value of different parameters was analyzed, respectively. A differentiation model was established by pooling all valuable parameters together. Diagnostic efficacy was evaluated, and a receiver operating curve (ROC) was plotted. RESULTS: Forty-two BD patients and ninety-seven CD patients were reviewed...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28641898/sclerosing-odontogenic-carcinoma-current-diagnostic-and-management-considerations-concerning-a-most-unusual-neoplasm
#14
REVIEW
M Hanisch, D Baumhoer, S Elges, L F Fröhlich, J Kleinheinz, S Jung
Sclerosing odontogenic carcinoma (SOC) is a primary intraosseous carcinoma of the jaws that has been listed as a separate entity for the first time in the latest version of the World Health Organization classification of Head and Neck Tumours (2017). The aim of this study was to analyse and interpret the existing literature on SOC in the context of a clinical case treated in the authors' department. A systematic search of the PubMed database was performed in accordance with the PRISMA guidelines, yielding nine cases of SOC reported so far...
June 19, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28640750/in-vivo-monitoring-of-infection-via-implantable-microsensors-a-pilot-study
#15
Andrej Ring, Heiko Sorg, Andreas Weltin, Daniel J Tilkorn, Jochen Kieninger, Gerald Urban, Jörg Hauser
The most common complication after implantation of foreign material is infection, leading to implant failure and severe patient discomfort. Smoldering-infections proceed inapparently and might not get verified by radiological diagnostics. Early identification of this type of infection might significantly reduce the rate of complications. Therefore, we manufactured a microsensor strip in a hybrid of thin-film and laminate technology in a wafer-level process. It comprises electrochemical, amperometric microsensors for glucose, oxygen and lactate as well as an integrated reference electrode...
June 22, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28639186/computerized-prediction-of-radiological-observations-based-on-quantitative-feature-analysis-initial-experience-in-liver-lesions
#16
Imon Banerjee, Christopher F Beaulieu, Daniel L Rubin
We propose a computerized framework that, given a region of interest (ROI) circumscribing a lesion, not only predicts radiological observations related to the lesion characteristics with 83.2% average prediction accuracy but also derives explicit association between low-level imaging features and high-level semantic terms by exploiting their statistical correlation. Such direct association between semantic concepts and low-level imaging features can be leveraged to build a powerful annotation system for radiological images that not only allows the computer to infer the semantics from diverse medical images and run automatic reasoning for making diagnostic decision but also provides "human-interpretable explanation" of the system output to facilitate better end user understanding of computer-based diagnostic decisions...
June 21, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28637959/examination-of-dose-reduction-using-image-noise-reduction-technology-in-cardiovascular-x-ray-systems
#17
Takaya Saijo, Shigenobu Seguchi
The aim of this study is to establish radiation exposure dose reduction protocols during cardiac intervention by decreasing the entrance dose at flat panel detector (FPD) with image quality evaluations. For measuring entrance surface dose (ESD), we have used a Radical 9015 dosimeter (6 cc ion chamber) placed under 20 cm thick acrylic plates at the patient's entrance reference point. We performed an image quality assessment based on quantitative as well as visual evaluation of the images obtained via current and dose reduction protocols...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28636740/initial-experience-of-a-hereditary-hemorrhagic-telangiectasia-center-of-excellence
#18
Christopher F Thompson, Jeffrey D Suh, Justin McWilliams, Gary Duckwiler, Marilene B Wang
Our objectives in reviewing the initial experience of a hereditary hemorrhagic telangiectasia center of excellence (HHT COE) were to better understand the interventions being performed in the comprehensive care of these patients and to present the early data as a reference for other tertiary centers considering starting an HHT COE. We conducted a retrospective review of consecutive patients referred to our newly developed HHT COE for evaluation and treatment between May 2010 and June 2013. Clinical presentation, otolaryngologic treatments, and other operative interventions were analyzed...
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28634042/routine-ultrasound-quality-assurance-in-a-multi-unit-radiology-department-a-retrospective-evaluation-of-transducer-failures
#19
Anne-Mari Vitikainen, Juha I Peltonen, Eija Vartiainen
The importance of quality assurance (QA) in medical ultrasound (US) has been widely recognized and recommendations concerning technical QA have been published over the years. However, the demonstrated impact of a properly working QA protocol on clinical routine has been scarce. We investigated the transducer write-off causes for a 5-y period in a multi-unit radiology department with an annual average of 230 transducers in demanding diagnostic use. The transducer faults and the initial observers of the faults leading to transducer write-offs were traced and categorized...
June 17, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28632786/diagnostic-accuracy-of-magnetic-resonance-computed-tomography-and-contrast-enhanced-ultrasound-in-radiological-multimodality-assessment-of-peribiliary-liver-metastases
#20
Vincenza Granata, Roberta Fusco, Orlando Catalano, Antonio Avallone, Raffaele Palaia, Gerardo Botti, Fabiana Tatangelo, Francesco Granata, Marco Cascella, Francesco Izzo, Antonella Petrillo
PURPOSE: We compared diagnostic performance of Magnetic Resonance (MR), Computed Tomography (CT) and Ultrasound (US) with (CEUS) and without contrast medium to identify peribiliary metastasis. METHODS: We identified 35 subjects with histological proven peribiliary metastases who underwent CEUS, CT and MR study. Four radiologists evaluated the presence of peribiliary lesions, using a 4-point confidence scale. Echogenicity, density and T1-Weigthed (T1-W), T2-W and Diffusion Weighted Imaging (DWI) signal intensity as well as the enhancement pattern during contrast studies on CEUS, CT and MR so as hepatobiliary-phase on MRI was assessed...
2017: PloS One
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