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Emergency CT imaging

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https://www.readbyqxmd.com/read/29339573/-sup-18-sup-f-choline-pet-ct-for-parathyroid-scintigraphy-significantly-lower-radiation-exposure-of-patients-in-comparison-to-conventional-nuclear-medicine-imaging-approaches
#1
Sebastijan Rep, Marko Hocevar, Janja Vaupotič, Urban Zdesar, Katja Zaletel, Luka Lezaic
Parathyroid subtraction scintigraphy is the most commonly used imaging method for localization of hyperfunctioning parathyroid glands (HPG) in primary hyperparathyroidism, a common endocrine disorder. Hybrid (SPECT/CT) imaging with 99mTc-sestaMIBI (MIBI) at an early and delayed phase (dual-phase imaging) may be the most accurate conventional imaging approach, but includes additional radiation exposure due to added CT imaging. Recently, 18F-choline (FCH) PET/CT was introduced for HPG imaging, which can also be performed using the dual-phase approach...
January 17, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29334098/how-a-tertiary-diamine-molecule-chelates-the-silicon-dimers-of-the-si-001-surface-a-real-time-scanning-tunneling-microscopy-study
#2
Ahmed Naitabdi, François Rochet, Fabrice Bournel, Marco Bonato, Jean-Jacques Gallet, Federica Bondino, Elena Magnano
The patterning of silicon surfaces by organic molecules emerges as an original way to fabricate innovative nanoelectronic devices. In this regard, we have studied how a diamine, N,N,N',N'-tetramethylethylenediamine (TMEDA, (CH3)2N-[CH2]2-N(CH3)2), chelates the silicon dimers of the Si(001)-2 × 1 surface. Starting from very low coverage to surface saturation (at 300 K), we used real-time scanning tunneling microscopy (STM) in a scanning-while-dosing approach. The images show that the molecules can adopt two bonding configurations: the cross-trench (CT) configuration by bridging two adjacent dimer rows, and the end-bridge (EB) configuration by chelating two adjacent dimers in the same row...
January 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29331979/now-you-see-me-a-pragmatic-cohort-study-comparing-first-and-final-radiological-diagnoses-in-the-emergency-department
#3
Björn Mattsson, David Ertman, Aristomenis Konstantinos Exadaktylos, Luca Martinolli, Wolf E Hautz
OBJECTIVES: To (1) compare timely but preliminary and definitive but delayed radiological reports in a large urban level 1 trauma centre, (2) assess the clinical significance of their differences and (3) identify clinical predictors of such differences. DESIGN, SETTING AND PARTICIPANTS: We performed a retrospective record review for all 2914 patients who presented to our university affiliated emergency department (ED) during a 6-week period. In those that underwent radiological imaging, we compared the patients' discharge letter from the ED to the definitive radiological report...
January 13, 2018: BMJ Open
https://www.readbyqxmd.com/read/29328003/characterizing-the-type-and-location-of-intracranial-abnormalities-in-mild-traumatic-brain-injury
#4
Harri Isokuortti, Grant L Iverson, Noah D Silverberg, Anneli Kataja, Antti Brander, Juha Öhman, Teemu M Luoto
OBJECTIVE The incidence of intracranial abnormalities after mild traumatic brain injury (TBI) varies widely across studies. This study describes the characteristics of intracranial abnormalities (acute/preexisting) in a large representative sample of head-injured patients who underwent CT imaging in an emergency department. METHODS CT scans were systematically analyzed/coded in the TBI Common Data Elements framework. Logistic regression modeling was used to quantify risk factors for traumatic intracranial abnormalities in patients with mild TBIs...
January 12, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29325982/multiple-cerebral-infarct-with-cerebral-vasculitis-in-a-young-patient-with-ulcerative-colitis
#5
Maeng Real Park, Mun Ki Min, Ji Ho Ryu, Dae Sub Lee, Kang Ho Lee
Ulcerative colitis (UC) is a chronic and debilitating disorder, characterized by inflammation of the colonic mucosa. UC can be considered a systemic disorder but UC-related manifestations in the central nervous system (CNS) are quite rare. A 29-year-old man was admitted to the emergency department with repeated generalized tonic-clonic (GTC) type seizures. Based on brain CT, brain metastasis or hemorrhagic infarct was suspected. Diffusion-weighted image of brain MRI showed high signal in the left thalamus and heterogenous enhancement in the right parietal and left frontal lobes...
January 4, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29325577/dynamic-kinematics-of-the-glenohumeral-joint-in-shoulders-with-rotator-cuff-tears
#6
Naoya Kozono, Takamitsu Okada, Naohide Takeuchi, Satoshi Hamai, Hidehiko Higaki, Takeshi Shimoto, Satoru Ikebe, Hirotaka Gondo, Yoshitaka Nakanishi, Takahiro Senju, Yasuharu Nakashima
BACKGROUND: No clear trend has emerged from the literature regarding three-dimensional (3D) translations of the humerus relative to the scapula in shoulders with rotator cuff tears (RCTs). The purpose of this study was to evaluate the kinematics of RCT shoulders using 3D-to-two-dimensional (2D) model-to-image registration techniques. METHODS: Dynamic glenohumeral kinematics during scapular plane abduction and axial rotation were analyzed in 11 RCT patients and 10 healthy control subjects...
January 11, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29324936/the-impact-of-lung-perfusion-scintigraphy-in-the-emergency-management-of-patients-with-suspected-pulmonary-embolism
#7
Cristina Ferrari, Alessandra Cimino, Giacomo Bianco, Francesca Iuele, Alessandra Di Palo, Margherita Fanelli, Artor Niccoli-Asabella, Giuseppe Rubini
OBJECTIVE: Pulmonary Embolism (PE) is an emergency condition that requires immediate treatment. As the symptoms and the risk factors are nonspecific, PE differential diagnosis is often required. Even if angio-CT is considered the gold standard for PE diagnosis, the frequent allergic condition and/or chronic renal failure of patients make, in most cases, not possible the use of contrast enhancement in emergency with even more increasing use of Lung Perfusion Scintigraphy (LPS), as a simple and fast examination with no preparation/contraindication...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29324173/the-risk-of-deterioration-in-gcs13-15-patients-with-traumatic-brain-injury-identified-by-computed-tomography-imaging-a-systematic-review-and-meta-analysis
#8
Carl Marincowitz, Fiona E Lecky, William Townend, Aditya Borakati, Andrea Fabbri, Trevor A Sheldon
The optimal management of mild traumatic brain injury (TBI) patients with injuries identified by computed tomography (CT) brain scan is unclear. Some guidelines recommend hospital admission for an observation period of at least 24 h. Others argue that selected lower-risk patients can be discharged from the Emergency Department (ED). The objective of our review and meta-analysis was to estimate the risk of death, neurosurgical intervention, and clinical deterioration in mild TBI patients with injuries identified by CT brain scan, and assess which patient factors affect the risk of these outcomes...
January 11, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29322704/evaluation-of-cerebral-venous-thrombosis-by-ct-mri-and-mr-venography
#9
Pratibha Issar, Sirasapalli Chinna, Sanjeev Kumar Issar
Objective: To study and compare cerebral parenchymal changes and sinuses involvement in CT with MRI and MRV in Cerebral Venous Thrombosis patients. Method: This study was carried out in the Department of Radiodiagnosis, JLN Hospital and Research Center, Bhilai, Chhattisgarh from October 2012 to Nov 2014 and includes fifty patients of all age groups presenting with clinical symptoms of CVT, admitted in Neurology, Neurosurgery, Medicine, Pediatric, obstetric and Gynecology wards...
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29321112/the-evaluation-and-management-of-urolithiasis-in-the-emergency-department-a-review-of-the-literature
#10
REVIEW
Michael Gottlieb, Brit Long, Alex Koyfman
BACKGROUND: Urolithiasis is a common condition in the U.S. Patients frequently present to the emergency department (ED) for care, including analgesia and treatments to facilitate stone passage. OBJECTIVE: With the new evidence concerning the evaluation and treatment of urolithiasis, this review summarizes current literature regarding the ED management of urolithiasis. DISCUSSION: Urolithiasis occurs primarily through supersaturation of urine and commonly presents with flank pain, hematuria, and nausea/vomiting...
January 5, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29320333/prostate-specific-membrane-antigen-pet-clinical-utility-in-prostate-cancer-normal-patterns-pearls-and-pitfalls
#11
Michael S Hofman, Rodney J Hicks, Tobias Maurer, Matthias Eiber
Prostate-specific membrane antigen (PSMA) is a transmembrane glycoprotein that is overexpressed in prostate cancer. Radiolabeled small molecules that bind with high affinity to its active extracellular center have emerged as a potential new diagnostic standard of reference for prostate cancer, resulting in images with extraordinary tumor-to-background contrast. Currently, gallium 68 (68Ga)-PSMA-11 (or HBED-PSMA) is the most widely used radiotracer for PSMA positron emission tomography (PET)/computed tomography (CT) or PSMA PET/magnetic resonance (MR) imaging...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29320323/multimodality-imaging-including-dual-energy-ct-in-the-evaluation-of-gallbladder-disease
#12
Lisa Ratanaprasatporn, Jennifer W Uyeda, Jeremy R Wortman, Ian Richardson, Aaron D Sodickson
Imaging of the gallbladder has a key role in the examination of patients with abdominal pain-especially pain localized to the right upper quadrant. Pathologic conditions that affect the gallbladder include cholelithiasis and associated complications such as acute and chronic cholecystitis, choledocholithiasis, gallstone pancreatitis, and cancer. Modalities used to image the gallbladder include ultrasonography (US), computed tomography (CT), magnetic resonance (MR) imaging, and nuclear scintigraphy. US is the primary imaging modality used to evaluate entities suspected of being gallbladder disease, as it is both sensitive and specific for demonstrating gallstones, biliary duct dilatation, and inflammatory features...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29319649/decreasing-radiation-exposure-in-pediatric-trauma-related-to-cervical-spine-clearance-a-quality-improvement-project
#13
Valerie Ann Waddell, Susan Connelly
STUDY DESIGN: Quality improvement project. OBJECTIVES: Reduce the amount of radiation exposure in the pediatric trauma population 5 years of age and older in relation to cervical spine clearance. BACKGROUND: The evaluation of pediatric cervical spine injuries must be accurate and timely to avoid missed injuries. The difficult clinical examination in pediatric trauma patients necessitates the use of radiologic examinations to avoid missing catastrophic injuries...
January 2018: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/29318965/current-status-of-molecular-imaging-in-infections
#14
Martina Sollini, Chiara Lauri, Roberto Boni, Elena Lazzeri, Paola Anna Erba, Alberto Signore
There is an increased need to find non-invasive tools for early diagnosis and follow-up of infections. Nuclear medicine techniques may be used to diagnose, localize and evaluate the severity and the extent of infections before the occurrence of anatomical abnormalities. This review focuses on different approaches based on radiolabelled cells, peptides and antibodies or [18F]FDG to image infective diseases in agreement with what is being jointly evaluated by the European Association of Nuclear Medicine (EANM)...
January 9, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29316885/cash-transfer-interventions-for-sexual-health-meanings-and-experiences-of-adolescent-males-and-females-in-inner-city-johannesburg
#15
Nomhle Khoza, Jonathan Stadler, Catherine MacPhail, Admire Chikandiwa, Heena Brahmbhatt, Sinead Delany-Moretlwe
BACKGROUND: In sub-Saharan Africa, there is growing interest in the use of cash transfer (CT) programs for HIV treatment and prevention. However, there is limited evidence of the consequences related to CT provision to adolescents in low-resourced urban settings. We explored the experiences of adolescents receiving CTs to assess the acceptability and unintended consequences of CT strategies in urban Johannesburg, South Africa. METHODS: We collected qualitative data during a pilot randomized controlled trial of three CT strategies (monthly payments unconditional vs...
January 10, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29316820/cost-effectiveness-of-access-to-critical-cerebral-emergency-support-services-access-a-neuro-emergent-telemedicine-consultation-program
#16
Justin Whetten, David N van der Goes, Huy Tran, Mark Moffett, Colin Semper, Howard Yonas
AIMS: Access to Critical Cerebral Emergency Support Services (ACCESS) was developed as a low-cost solution to providing neuro-emergent consultations to rural hospitals in New Mexico that do not offer comprehensive stroke care. ACCESS is a two-way audio visual program linking remote emergency department physicians and their patients to stroke specialists. ACCESS also has an education component in which hospitals receive training from stroke specialists on the triage and treatment of patients...
January 9, 2018: Journal of Medical Economics
https://www.readbyqxmd.com/read/29315969/effectiveness-of-interventions-to-decrease-image-ordering-for-low-back-pain-presentations-in-the-emergency-department-a-systematic-review
#17
Chaocheng Liu, Shashwat Desai, Lynette D Krebs, Scott W Kirkland, Diana Keto-Lambert, Brian H Rowe
BACKGROUND: Low back pain (LBP) is an extremely frequent reason for patients to present to an emergency department (ED). Despite evidence against the utility of imaging, simple and advanced imaging (i.e., computed tomography [CT], magnetic resonance imaging [MRI]) for patients with LBP has become increasingly frequent in the ED. The objective of this review was to identify and examine the effectiveness of interventions aimed at reducing image ordering in the ED for LBP patients. METHODS: A protocol was developed a priori, following the PRISMA guidelines, and registered with PROSPERO...
January 8, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29307034/emergency-department-imaging-of-pediatric-trauma-patients-during-combat-operations-in-iraq-and-afghanistan
#18
Jason F Naylor, Michael D April, Jamie L Roper, Guyon J Hill, Paul Clark, Steven G Schauer
BACKGROUND: Military hospitals in Iraq and Afghanistan treated children with traumatic injuries during the recent conflicts. Diagnostic imaging is an integral component of trauma management; however, few published data exist on its use in the wartime pediatric population. OBJECTIVE: The authors describe the emergency department (ED) utilization of radiology resources for pediatric trauma patients in Iraq and Afghanistan. MATERIALS AND METHODS: We queried the Department of Defense Trauma Registry (DODTR) for all pediatric patients admitted to military fixed-facility hospitals in Iraq and Afghanistan from January 2007 to January 2016...
January 6, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29306644/increasing-utilization-of-emergency-department-neuroimaging-in-medicare-beneficiaries-from-1994-to-2015
#19
Anand M Prabhakar, Ravi V Gottumukkala, Jennifer Hemingway, Danny R Hughes, Sumir S Patel, Richard Duszak
OBJECTIVE: To assess for changes in emergency department (ED) utilization of neuroimaging in Medicare fee-for-service beneficiaries from 1994 to 2015. METHODS: Using Medicare Physician Supplier Procedure Summary Master Files, annual ED volumes of head computed tomography (CT), magnetic resonance (MR), and carotid duplex ultrasound (CDUS) were assessed from 1994 through 2015. Annual volumes of head CT angiography (CTA), neck CTA, head MR angiography (MRA), and neck MRA studies were assessed from 2001 (first year of unique reporting codes) through 2015...
December 28, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29305684/an-extraaxially-localized-intrasellar-giant-hydatid-cyst-with-hypophyseal-insufficiency
#20
Gökhan Çavuş, Vedat Açik, Yeliz Çavuş, Emre Bilgin, Yurdal Gezercan, Ali Ihsan Ökten
PURPOSE: A hydatid cyst is a parasitic illness that is caused by the larvae of Echinococcus granulosus. Hydatid cysts occur in the liver in 75% and in the lungs in 15% of cases. Central nervous system involvement is rare (perhaps as low as 1%), and the majority of such cases are observed in children. Headache and vomiting are the most frequently observed symptoms. In patients diagnosed with a hydatid cyst, imaging methods and serologic tests are very important for identifying cranial involvement...
January 5, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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