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https://www.readbyqxmd.com/read/28736129/clinical-and-radiological-predictors-of-malignant-middle-cerebral-artery-infarction-development-and-outcomes
#1
Angelique F Albert, Matthew A Kirkman
BACKGROUND: Optic nerve sheath diameter (ONSD) can predict intracranial hypertension and outcomes in severe traumatic brain injury. Its utility in middle cerebral artery (MCA) stroke is unknown. AIMS: We reviewed serial radiological measurements, including ONSD, in patients with MCA stroke undergoing decompressive craniectomy (DC) for malignant MCA syndrome and compared demographic, clinical, and radiological data with an age- and gender-matched group of nonmalignant MCA stroke patients...
July 20, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28730501/the-pseudo-sah-sign-an-imaging-pitfall-in-postmortem-computed-tomography
#2
Go Shirota, Wataru Gonoi, Masako Ikemura, Masanori Ishida, Yukako Shintani, Hiroyuki Abe, Masashi Fukayama, Tomohiko Higashida, Hidemi Okuma, Osamu Abe
Postmortem computed tomography (PMCT) of the brain has an important role in detection of subarachnoid hemorrhage (SAH), which has a high mortality rate. However, a phenomenon known as "pseudo-SAH," or high-attenuation areas along the cisterns mimicking SAH, may be seen on CT. The aim of this study was to evaluate the diagnostic accuracy of brain PMCT for SAH and to identify the characteristics of pseudo-SAH. Findings on PMCT (sulcal effacement, asymmetry, maximum thickness of SAH signs, presence of acute/subacute intraventricular/intraparenchymal hemorrhage) and clinical history (left ventricular assist device [LVAD] implantation, anticoagulation therapy/coagulation disorder, global ischemia) were compared between subjects with true SAH and those with pseudo-SAH...
July 20, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28705927/incidence-of-brain-metastases-on-follow-up-18-f-fdg-pet-ct-scans-of-non-small-cell-lung-cancer-patients-should-we-include-the-brain
#3
Emily Nia, Linda Garland, Naghmehossadat Eshghi, Benjamin Nia, Ryan Avery, Phillip Kuo
PURPOSE: The brain is the most common site of distant metastasis from lung cancer. Thus MRI of the brain at initial staging is routinely performed, but if this exam is negative a follow-up exam is often not performed. This study evaluates the incidence of asymptomatic brain metastases in non-small cell lung cancer patients detected on follow-uP(18)F- FDG PET/CT scans. MATERIALS AND METHODS: In this IRB approved retrospective review, all vertex to thigh (18)F- FDG PET/CT scans in patients with all subtypes of lung cancer from August 2014 to August 2016 were reviewed...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705554/atrial-function-atrial-volume-and-cardiovascular-clinical-outcomes-in-patients-with-end-stage-renal-disease-a-study-of-cardiac-computed-tomography
#4
Laust Dupont, Simon Winther, Hanne Skou Jørgensen, Peter Bomholt, Hans Erik Bøtker, Morten Bøttcher, Per Ivarsen, My Svensson
BACKGROUND: Patients with chronic kidney disease (CKD) have an increased risk of cardiovascular events. Previous studies using 2-dimensional echocardiography show that left atrial end-diastolic volume (LAEDV) predicts cardiovascular outcomes and mortality in patients with CKD. However, contrast-enhanced cardiac CT may offers a more precise measure of atrial dimensions and function than 2-dimensional echocardiography and may provide improved predictionof patient outcome. AIM: The aim of the present study was to examine the association of LAEDV and left atrial ejection fraction (LAEF) assessed by CT with left ventricle end-diastolic volume (LVEDV), left ventricular mass, left ventricular ejection fraction and N-terminal plasma-pro-brain natriuretic peptide (NT-PRO-BNP)...
July 4, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28698750/the-relationship-between-risk-factors-of-head-trauma-with-ct-scan-findings-in-children-with-minor-head-trauma-admitted-to-hospital
#5
Babak Masoumi, Farhad Heydari, Hamidreza Hatamabadi, Reza Azizkhani, Zahra Yoosefian, Majid Zamani
BACKGROUND: In emergency medicine for determining the intracranial injury (ICI) in children with head trauma, usually brain CT scan is performed. Since brain CT scan, especially in children, has some disadvantages, it is better to find a procedure which could help to choose only the children with real head trauma injury for brain CT scan. AIMS: The aim of this study is to find such procedure. This study was descriptive, analytic and non-interventional. METHODS: We reviewed the archived files of children with head trauma injuries referred to the emergency department of Imam Hossein Hospital within two years...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28692515/criteria-for-performing-cranial-computed-tomography-for-chinese-patients-with-mild-traumatic-brain-injury-canadian-computed-tomography-head-rule-or-new-orleans-criteria
#6
Xiao-Feng Yang, Yuan-Yuan Meng, Liang Wen, Hao Wang
Computed tomography (CT) provides the primary diagnostic evidence for traumatic brain injury (TBI), but few positive traumatic findings are discovered in patients with mild TBI. In China, there are no existing criteria for selecting patients with mild TBI to undergo CT, and almost all of these patients undergo cranial CT in the emergency department. This retrospective study was performed to evaluate the necessity of cranial CT among patients with mild TBI, as well as the feasibility of 2 popular criteria (Canadian CT head rule [CCHR] and New Orleans Criteria [NOC]) in China...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28687641/immediate-vascular-imaging-needed-for-efficient-triage-of-patients-with-acute-ischemic-stroke-initially-admitted-to-nonthrombectomy-centers
#7
Gregoire Boulouis, Khawja-Ahmeruddin Siddiqui, Arne Lauer, Andreas Charidimou, Robert W Regenhardt, Anand Viswanathan, Thabele M Leslie-Mazwi, Natalia Rost, Lee H Schwamm
BACKGROUND AND PURPOSE: Current guidelines for endovascular thrombectomy (EVT) used to select patients for transfer to thrombectomy-capable stroke centers (TSC) may result in unnecessary transfers. We sought to determine the impact of simulated baseline vascular imaging on reducing unnecessary transfers and clinical-imaging factors associated with receiving EVT after transfer. METHODS: We identified patients with stroke transferred for EVT from 30 referring hospitals between 2010 and 2016 who had a referring hospitals brain computed tomography and repeat imaging on TSC arrival available for review...
July 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28681198/childhood-maltreatment-and-hiv-associated-neurocognitive-disorders-share-similar-pathophysiology-a-potential-sensitisation-mechanism
#8
Jacqueline S Womersley, Soraya Seedat, Sian M J Hemmings
HIV-associated neurocognitive disorders (HAND) are increasingly prevalent despite the use of antiretroviral therapies. Previous research suggests that individual host factors play an important role in determining susceptibility to HAND. In this review, we propose that childhood trauma (CT) and HAND share several common aetiological mechanisms, namely hypothalamic-pituitary-adrenal axis dysregulation, neuroinflammation and oxidative stress. These convergent and consequent mechanisms may translate into an increased risk of developing HAND in individuals who have experienced early life stress...
July 5, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28678669/automated-critical-test-findings-identification-and-online-notification-system-using-artificial-intelligence-in-imaging
#9
Luciano M Prevedello, Barbaros S Erdal, John L Ryu, Kevin J Little, Mutlu Demirer, Songyue Qian, Richard D White
Purpose To evaluate the performance of an artificial intelligence (AI) tool using a deep learning algorithm for detecting hemorrhage, mass effect, or hydrocephalus (HMH) at non-contrast material-enhanced head computed tomographic (CT) examinations and to determine algorithm performance for detection of suspected acute infarct (SAI). Materials and Methods This HIPAA-compliant retrospective study was completed after institutional review board approval. A training and validation dataset of noncontrast-enhanced head CT examinations that comprised 100 examinations of HMH, 22 of SAI, and 124 of noncritical findings was obtained resulting in 2583 representative images...
July 3, 2017: Radiology
https://www.readbyqxmd.com/read/28668522/the-traumatic-bone-trauma-induced-heterotopic-ossification
#10
REVIEW
Devaveena Dey, Benjamin M Wheatley, David Cholok, Shailesh Agarwal, Paul B Yu, Benjamin Levi, Thomas A Davis
Heterotopic ossification (HO) is a common occurrence after multiple forms of extensive trauma. These include arthroplasties, traumatic brain and spinal cord injuries, extensive burns in the civilian setting, and combat-related extremity injuries in the battlefield. Irrespective of the form of trauma, heterotopic bone is typically endochondral in structure and is laid down via a cartilaginous matrix. Once formed, the heterotopic bone typically needs to be excised surgically, which may result in wound healing complications, in addition to a risk of recurrence...
June 15, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28664017/coexistence-of-quasi-moyamoya-disease-and-poems-syndrome-in-a-patient-with-intracranial-hemorrhage-a-case-report-and-literature-review
#11
Izumi Yamaguchi, Junichiro Satomi, Nobuaki Yamamoto, Shotaro Yoshioka, Yoshiteru Tada, Kenji Yagi, Yasuhisa Kanematsu, Shinji Nagahiro
POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome is a rare paraneoplastic syndrome elicited by plasma cell dyscrasia. Its clinical manifestations are multiple and stroke is not a recognized feature. A 44-year-old woman with a 3-month history of bilateral lower extremity sensorimotor disturbance was admitted to our hospital. Examinations revealed polyneuropathy, organomegaly, hypothyroidism, monoclonal gammopathy, pelvic plasmacytoma, and elevated serum vascular endothelial growth factor (VEGF) levels...
January 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28646445/update-on-neurocritical-care-of-stroke
#12
Jason Siegel, Michael A Pizzi, J Brent Peel, David Alejos, Nnenne Mbabuike, Benjamin L Brown, David Hodge, W David Freeman
PURPOSE OF REVIEW: This review will highlight the recent advancements in acute ischemic stroke diagnosis and treatment, with special attention to new features and recommendations of stroke care in the neurocritical care unit. RECENT FINDINGS: New studies suggest that pre-hospital treatment of stroke with mobile stroke units and telestroke technology may lead to earlier stroke therapy with intravenous tissue plasminogen activator (tPA), and recent studies show tPA can be given in previously contraindicated situations...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28638568/dizziness-in-a-community-hospital-central-neurological-causes-clinical-predictors-and-diagnostic-yield-and-cost-of-neuroimaging-studies
#13
Hussam Ammar, Rukma Govindu, Ragai Fouda, Wael Zohdy, Emilio Supsupin
Objectives: Neuroimaging is contributing to the rising costs of dizziness evaluation. This study examined the rate of central neurological causes of dizziness, relevant clinical predictors, and the costs and diagnostic yields of neuroimaging in dizziness assessment. Methods: We retrospectively reviewed the records of 521 adult patients who visited the hospital during a 12-month period with dizziness as the chief complaint. Clinical findings were analyzed using Fisher's exact test to determine how they correlated with central neurological causes of dizziness identified by neuroimaging...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28624057/surveillance-strategies-in-the-follow-up-of-melanoma-patients-too-much-or-not-enough
#14
James Kurtz, Georgia M Beasley, Doreen Agnese, Kari Kendra, Thomas E Olencki, Alicia Terando, J Harrison Howard
BACKGROUND: After appropriate initial therapy for patients with stage II-III melanoma, there is no consensus regarding surveillance. Thus, follow-up is highly variable among institutions and individual providers. The National Comprehensive Cancer Network recommends routine clinical examination and consideration of imaging for stage IIB-IIIC every 3-12 mo with no distinction between stages. Detection of recurrence is important as novel systemic therapies and surgical resection of recurrence may provide survival benefits...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28621627/factors-associated-with-shunt-dependent-hydrocephalus-after-decompressive-craniectomy-for-traumatic-brain-injury
#15
Aditya Vedantam, Jose-Miguel Yamal, Hyunsoo Hwang, Claudia S Robertson, Shankar P Gopinath
OBJECTIVE Posttraumatic hydrocephalus (PTH) affects 11.9%-36% of patients undergoing decompressive craniectomy (DC) and is an important cause of morbidity after traumatic brain injury (TBI). Early diagnosis and treatment of PTH can prevent further neurological compromise in patients who are recovering from TBI. There is limited data on predictors of shunting for PTH after DC for TBI. METHODS Prospectively collected data from the erythropoietin severe TBI randomized controlled trial were studied. Demographic, clinical, and imaging data were analyzed for enrolled patients who underwent a DC...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28614144/early-fibrinolysis-associated-with-hemorrhagic-progression-following-traumatic-brain-injury
#16
Jay Karri, Jessica C Cardenas, Nena Matijevic, Yao-Wei Wang, Sangbum Choi, Liang Zhu, Bryan A Cotton, Ryan Kitagawa, John B Holcomb, Charles E Wade
BACKGROUND: Progressive hemorrhagic injury (PHI) is common in patients with severe traumatic brain injury (TBI) and is associated with worse outcomes. PHI pathophysiology remains poorly understood and difficult to predict. We performed an exploratory analysis aimed at identify markers in need of further investigation to establish their predictive value in PHI following TBI. METHODS: We performed a retrospective chart review of prospectively collected data from 424 highest-level activation trauma patients from January 2012 through December 2013...
June 13, 2017: Shock
https://www.readbyqxmd.com/read/28602955/etiological-diagnoses-of-out-of-hospital-cardiac-arrest-survivors-admitted-to-the-intensive-care-unit-insights-from-a-french-registry
#17
Guillaume Geri, Olivier Passouant, Florence Dumas, Wulfran Bougouin, Benoit Champigneulle, Michel Arnaout, Jonathan Chelly, Jean-Daniel Chiche, Olivier Varenne, Lucie Guillemet, Frederic Pène, Victor Waldmann, Jean-Paul Mira, Eloi Marijon, Alain Cariou
BACKGROUND: Respective proportions of final etiologies are disparate in cohorts of cardiac arrest patients, depending on examined population and diagnostic algorithms. In particular, prevalence and characteristics of sudden unexplained death syndrome (SUDS) are debated. We aimed at describing etiologies in a large cohort of aborted out-of-hospital cardiac arrest (OHCA) patients, in order to assess prevalence and outcome of SUDS. PATIENTS AND METHODS: We analyzed data from our prospective registry of successfully resuscitated OHCA patients admitted to a cardiac arrest centre between January 2002 and December 2014...
June 8, 2017: Resuscitation
https://www.readbyqxmd.com/read/28601258/computed-tomography-perfusion-abnormalities-in-bilateral-thalamic-infarction-due-to-artery-of-percheron-occlusion
#18
Adam MacLellan, Karl Boyle
OBJECTIVE: We aimed to report a novel case of hyperacute computed tomography (CT) perfusion imaging abnormalities in artery of Percheron infarction. METHODS: We described a case of a 74-year-old man who presented acutely to the emergency room with witnessed sudden onset altered level of consciousness. RESULTS: Although initial hyperacute CT brain imaging was reported as normal, subsequent magnetic resonance imaging revealed bilateral paramedian thalamic infarction...
June 7, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28590819/pattern-and-distribution-of-distant-metastases-in-anaplastic-prostate-carcinoma-a-single-institute-experience-with-101-patients
#19
Dhakshinamoorthy Ganeshan, Ana M Aparicio, Ajay Morani, Vikas Kundra
OBJECTIVE: The aim of this study was to evaluate the sites and frequencies of distant metastases in patients with anaplastic prostate carcinoma and to correlate those findings with prostate-specific antigen (PSA) levels. MATERIALS AND METHODS: Patients with anaplastic prostate carcinoma (n = 101) underwent CT and bone scans before platinum-based chemotherapy. CT findings were retrospectively reviewed to identify the sites of metastases. CT findings were correlated with baseline PSA levels...
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28589641/the-yield-of-head-computed-tomography-in-patients-with-new-onset-of-transient-headaches
#20
Niamh Hammond, Annemarei Ranta
BACKGROUND: Headache is a common patient complaint. The threshold for brain imaging in headache is debated, especially when the headache is transient, although even if the headache has resolved at presentation a sentinel bleed heralding a subarachnoid haemorrhage (SAH) often remains a concern. AIMS: To assess the yield of computed tomography (CT) head scan referrals for patients with transient headache symptoms. METHODS: This study looked at six months of CT results assessing for brain pathology with a particular focus on subarachnoid haemorrhage...
June 7, 2017: Internal Medicine Journal
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