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MRI GUIDELINES

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https://www.readbyqxmd.com/read/28337405/tailored-algorithms-for-hepatocellular-carcinoma-surveillance-is-one-size-fits-all-strategy-outdated
#1
Nicolas Goossens, C Billie Bian, Yujin Hoshida
PURPOSE OF REVIEW: Current clinical practice guidelines recommend regular hepatocellular carcinoma (HCC) surveillance with biannual ultrasound with or without serum alpha-fetoprotein uniformly applied to all patients with cirrhosis. However, clinical implementation of this one-size-fits-all strategy has been challenging as evidenced by very low application rate below 20% due to various reasons, including suboptimal performance of the surveillance modalities. RECENT FINDINGS: Newly emerging imaging techniques such as abbreviated MRI (AMRI) and molecular HCC risk biomarkers have increasingly become available for clinical evaluation and implementation...
March 2017: Current Hepatology Reports
https://www.readbyqxmd.com/read/28336078/what-is-the-negative-predictive-value-of-multiparametric-magnetic-resonance-imaging-in-excluding-prostate-cancer-at-biopsy-a-systematic-review-and-meta-analysis-from-the-european-association-of-urology-prostate-cancer-guidelines-panel
#2
REVIEW
Paul C Moldovan, Thomas Van den Broeck, Richard Sylvester, Lorenzo Marconi, Joaquim Bellmunt, Roderick C N van den Bergh, Michel Bolla, Erik Briers, Marcus G Cumberbatch, Nicola Fossati, Tobias Gross, Ann M Henry, Steven Joniau, Theo H van der Kwast, Vsevolod B Matveev, Henk G van der Poel, Maria De Santis, Ivo G Schoots, Thomas Wiegel, Cathy Yuhong Yuan, Philip Cornford, Nicolas Mottet, Thomas B Lam, Olivier Rouvière
CONTEXT: It remains unclear whether patients with a suspicion of prostate cancer (PCa) and negative multiparametric magnetic resonance imaging (mpMRI) can safely obviate prostate biopsy. OBJECTIVE: To systematically review the literature assessing the negative predictive value (NPV) of mpMRI in patients with a suspicion of PCa. EVIDENCE ACQUISITION: The Embase, Medline, and Cochrane databases were searched up to February 2016. Studies reporting prebiopsy mpMRI results using transrectal or transperineal biopsy as a reference standard were included...
March 20, 2017: European Urology
https://www.readbyqxmd.com/read/28336042/acute-hematogenous-osteomyelitis-in-children-pathogenesis-diagnosis-and-treatment
#3
REVIEW
Shawn S Funk, Lawson A B Copley
Acute hematogenous osteomyelitis (AHO) in children is an ideal condition to study due to its representation of a wide spectrum of disorders that comprise pediatric musculoskeletal infection. Proper care for children with AHO is multidisciplinary and collaborative. AHO continues to present a significant clinical challenge due to evolving epidemiology and complex pathogenesis. A guideline-driven, multidisciplinary approach has been introduced and shown to effectively reduce hospital stay, improve the timing and selection of empirical antibiotic administration, reduce delay to initial MRI, reduce the rate of readmission, and shorten antibiotic duration...
April 2017: Orthopedic Clinics of North America
https://www.readbyqxmd.com/read/28328144/diagnosing-and-preventing-iron-overload
#4
Ganesh Ramanathan, John K Olynyk, Paolo Ferrari
Absolute or functional iron (Fe) deficiency is an important determinant of anemia in hemodialysis patients and parenteral Fe is routinely used to treat this condition in conjunction with erythropoiesis stimulating agents. While restoration of hemoglobin toward the target range is a good outcome of Fe replacement, it is well known that Fe overload and toxicity may be adverse consequences of this therapy. Dialysis clinical practice guidelines recommend tailoring Fe therapy based on transferrin saturation and serum ferritin levels...
March 22, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28317247/establishing-the-pathways-and-indications-for-performing-isotope-bone-scans-in-newly-diagnosed-intermediate-risk-localised-prostate-cancer-results-from-a-large-contemporaneous-cohort
#5
Gokul Vignesh KandaSwamy, Adam Bennett, Krishna Narahari, Owen Hughes, John Rees, Howard Kynaston
OBJECTIVE: To establish the pattern of isotope bone scan (BS) positivity in a large contemporaneous cohort of newly diagnosed localised prostate cancer (PCa) patients and compare with the European Association of Urology (EAU) guidelines. BACKGROUND: Imaging guidelines and clinical practice of using BS to stage newly diagnosed patients with intermediate risk (IR) localised PCa are not uniform in the literature. PATIENTS AND METHODS: All newly diagnosed PCa patients were discussed in a specialist multidisciplinary team (sMDT) meeting and were prospectively entered in a database...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28304293/coordinate-based-meta-analysis-of-the-default-mode-and-salience-network-for-target-identification-in-non-invasive-brain-stimulation-of-alzheimer-s-disease-and-behavior-variant-frontotemporal-dementia-networks
#6
Michela Pievani, Lorenzo Pini, Clarissa Ferrari, Francesca B Pizzini, Ilaria Boscolo Galazzo, Chiara Cobelli, Maria Cotelli, Rosa Manenti, Giovanni B Frisoni
BACKGROUND: The accurate choice of the site of non-invasive brain stimulation (NIBS) is an important factor in trial design. OBJECTIVE: Based on the observation that Alzheimer's disease (AD) and behavioral frontotemporal dementia (bvFTD) affect specific large-scale networks, i.e., the default mode network (DMN) and the salience network (SN), respectively, we aimed to identify population-average coordinates of these networks that could be used as potential targets in NIBS trials aiming to modulate these circuits...
March 13, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28302372/experiences-during-newborn-screening-for-glutaric-aciduria-type-1-diagnosis-treatment-genotype-phenotype-and-outcomes
#7
Fang-Chih Tsai, Han-Jui Lee, An-Guor Wang, Shu-Chen Hsieh, Yung-Hsiu Lu, Ming-Che Lee, Ju-Shan Pai, Tzu-Hung Chu, Chia-Feng Yang, Ting-Rong Hsu, Chih-Jou Lai, Ming-Tzu Tsai, Ping-Hsun Ho, Min-Chieh Lin, Ling-Yee Cheng, Ya-Chin Chuang, Dau-Ming Niu
BACKGROUND: Glutaric aciduria type 1 (GA-1) is an organic acidemia with potentially severe neurological sequelae. In Taiwan, newborn screening (NBS) for GA-1 began in 2001, but large-scale reporting is lacking. This study describes Taiwan's largest newborn screening population to date. METHODS: Between 2001 and 2015, 1,490,636 newborns were screened for GA-1. Confirmatory examinations included the carnitine loading test. Confirmed patients were treated with a low lysine diet, carnitine, and high-energy intake during illness...
March 13, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28298731/magnetic-resonance-imaging-of-the-cirrhotic-liver-diagnosis-of-hepatocellular-carcinoma-and-evaluation-of-response-to-treatment-part-1
#8
REVIEW
Miguel Ramalho, António P Matos, Mamdoh AlObaidy, Fernanda Velloni, Ersan Altun, Richard C Semelka
Magnetic resonance imaging (MRI) is the modern gold standard for the noninvasive evaluation of the cirrhotic liver. The combination of arterial phase hyperenhancement and delayed wash-out allows a definitive diagnosis of hepatocellular carcinoma (HCC) in patients with liver cirrhosis or chronic liver disease, without the requirement for confirmatory biopsy. That pattern is highly specific and has been endorsed in Western and Asian diagnostic guidelines. However, the sensitivity of the combination is relatively low for small HCCs...
January 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28289599/quantitative-measures-of-walking-and-strength-provide-insight-into-brain-corticospinal-tract-pathology-in-multiple-sclerosis
#9
Nora E Fritz, Jennifer Keller, Peter A Calabresi, Kathleen M Zackowski
At least 85% of individuals with multiple sclerosis report walking dysfunction as their primary complaint. Walking and strength measures are common clinical measures to mark increasing disability or improvement with rehabilitation. Previous studies have shown an association between strength or walking ability and spinal cord MRI measures, and strength measures with brainstem corticospinal tract magnetization transfer ratio. However, the relationship between walking performance and brain corticospinal tract magnetization transfer imaging measures and the contribution of clinical measurements of walking and strength to the underlying integrity of the corticospinal tract has not been explored in multiple sclerosis...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28280860/-clinical-magnetic-resonance-imaging-frequent-incidental-cerebral-findings
#10
A Müller, P Ditter, S Weidauer, H-H Schild, E Hattingen
The increasing use of magnetic resonance imaging (MRI) in clinical diagnostics means that patients and physicians are confronted more often with incidental findings. In the literature there are fluctuating data on the incidence of such findings and guidelines concerning the further procedure exist in only very few cases, such as incidental aneurysms and pituitary adenomas. The diagnostic and therapeutic implications which can be derived from incidental findings depend on multiple factors, such as anatomical location, patient age, comorbidity and patient wishes...
March 9, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28280107/ventilation-heterogeneity-measured-by-multiple-breath-inert-gas-testing-is-not-affected-by-inspired-oxygen-concentration-in-healthy-humans
#11
Susan Roberta Hopkins, Ann R Elliott, Gordon Kim Prisk, Chantal Darquenne
Multiple breath washout (MBW) and oxygen-enhanced MRI techniques use acute exposure to 100% oxygen to measure ventilation heterogeneity. Implicit is the assumption that breathing 100% oxygen does not induce changes in ventilation heterogeneity, however, this is untested. We hypothesized that ventilation heterogeneity decreases with increasing inspired oxygen concentration in healthy subjects. We performed MBW in 8 healthy subjects (4 female, 4 male, Age=43±15y) with normal pulmonary function (FEV1=98±6% predicted) using 10% Argon as a tracer gas and oxygen concentrations of 12...
March 9, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28269512/distribution-aware-estimation-of-the-minimum-achievable-uncertainty-in-diffusion-tensor-imaging-dti
#12
Andrea Duggento, Marco Giannelli, Carlo Tessa, Simona Lanzafame, Maria Guerrisi, Nicola Toschi
Diffusion tensor imaging (DTI) provides exquisite sensitivity to structural and microstructural characteristics of brain tissue, and is routinely employed in advanced neuroimaging applications. DTI is commonly performed using intrinsically noisy echo-planar imaging techniques and poses high demands both on scanner performance and on in-scanner subject time, which in turn is directly related to the number of diffusion-weighting direction one requires. While DTI-derived indices such as fractional anisotropy (FA), diffusion tensor trace and anisotropy mode have proven extremely useful in characterizing disease-related aberrations, their estimation is commonly performed using fitting routines that do not properly take into account MRI noise distribution...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28260625/cavernous-sinus-syndrome-a-prospective-study-of-73-cases-at-a-tertiary-care-centre-in-northern-india
#13
S Bhatkar, M K Goyal, A Takkar, K K Mukherjee, P Singh, R Singh, V Lal
OBJECTIVES: To study the clinical and etiological profile of patients with cavernous sinus syndrome (CSS) and identify factors which could determine the etiology and influence the outcome of these patients. PATIENTS AND METHODS: This prospective observational study included 73 consecutive patients satisfying the criteria of CSS (i.e. involvement of any 2 of the 3rd, 4th, 5th and 6th cranial nerves or any one of them with radiological evidence of cavernous sinus involvement)...
February 22, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28256436/parkinsonian-pyramidal-syndromes-a-systematic-review
#14
REVIEW
Christine Tranchant, Meriam Koob, Mathieu Anheim
INTRODUCTION: Parkinsonian-Pyramidal syndrome (PPS), defined as the combination of both pyramidal and parkinsonian signs is a concept that recently emerged. PPS may manifest itself in numerous neurodegenerative diseases, many of these being inherited. Their diagnosis is a major challenge for the clinical management, for the prognosis, for genetic counselling and, in a few cases, which should not be neglected, for specific treatment. OBJECTIVE: Our objective is to provide a review of PPS and an algorithm in order to guide their diagnosis in clinical practice...
February 22, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28255580/clinical-applications-of-contrast-enhanced-ultrasound-in-the-pediatric-work-up-of-focal-liver-lesions-and-blunt-abdominal-trauma-a-systematic-review
#15
REVIEW
Nicolaj Grønbæk Laugesen, Christian Pallson Nolsoe, Jacob Rosenberg
In pediatrics ultrasound has long been viewed more favorably than imaging that exposes patients to radiation and iodinated contrast or requires sedation. It is child-friendly and diagnostic capabilities have been improved with the advent of contrast-enhanced ultrasound (CEUS). The application of CEUS is indeed promising. However, no ultrasound contrast agent manufactured today is registered for pediatric use in Europe. The contrast agent SonoVue(®) has recently been approved by the FDA under the name of Lumason(®) to be used in hepatic investigations in adults and children...
February 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28251542/sellar-and-clival-plasmacytomas-case-series-of-5-patients-with-systematic-review-of-65-published-cases
#16
REVIEW
Jane Lee, Edwin Kulubya, Barry D Pressman, Adam Mamelak, Serguei Bannykh, Gabriel Zada, Odelia Cooper
PURPOSE: Parasellar plasmacytomas are rare tumors localized to the sellar region arising from plasma cells. Knowledge of clinical, imaging, surgical, and pathological characteristics is limited to single case reports. METHODS: A retrospective analysis of five primary cases was conducted, followed by systematic review of English language articles using PubMed in accordance with PRISMA guidelines. RESULTS: Five primary case patients include four men and one woman, ages 60-77, followed up to 3 years...
March 1, 2017: Pituitary
https://www.readbyqxmd.com/read/28251361/german-s3-guidelines-anal-abscess-and-fistula-second-revised-version
#17
Andreas Ommer, Alexander Herold, Eugen Berg, Alois Fürst, Stefan Post, Reinhard Ruppert, Thomas Schiedeck, Oliver Schwandner, Bernhard Strittmatter
BACKGROUND: The incidence of anal abscess and fistula is relatively high, and the condition is most common in young men. METHODS: This is a revised version of the German S3 guidelines first published in 2011. It is based on a systematic review of pertinent literature. RESULTS: Cryptoglandular abscesses and fistulas usually originate in the proctodeal glands of the intersphincteric space. Classification depends on their relation to the anal sphincter...
March 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28249017/the-reporting-of-study-and-population-characteristics-in-degenerative-cervical-myelopathy-a-systematic-review
#18
Benjamin M Davies, M McHugh, A Elgheriani, Angelos G Kolias, Lindsay Tetreault, Peter J A Hutchinson, Michael G Fehlings, Mark R N Kotter
OBJECT: Degenerative cervical myelopathy [DCM] is a disabling and increasingly prevalent condition. Variable reporting in interventional trials of study design and sample characteristics limits the interpretation of pooled outcomes. This is pertinent in DCM where baseline characteristics are known to influence outcome. The present study aims to assess the reporting of the study design and baseline characteristics in DCM as the premise for the development of a standardised reporting set...
2017: PloS One
https://www.readbyqxmd.com/read/28248560/borderline-personality-disorder-treatment-from-the-contextual-perspective
#19
REVIEW
Michael H Stone
In relation to the psychotherapy of borderline personality disorder (BPD), the contextual model embraces the subjective components that operate alongside the more readily objectifiable elements of the medical model. The latter include the guidelines of the various psychodynamic and cognitive approaches, the randomized control trials of these approaches, follow-up studies, and data from MRI and other neurophysiological tests. The contextual model focuses on less easily measurable factors that comprise the real relationship between therapist and patient, including the heterogeneity in the BPD domain...
2017: Psychodynamic Psychiatry
https://www.readbyqxmd.com/read/28247411/reversed-aqueductal-cerebrospinal-fluid-net-flow-in-idiopathic-normal-pressure-hydrocephalus
#20
L K Yin, J J Zheng, L Zhao, X Z Hao, X X Zhang, J Q Tian, K Zheng, Y M Yang
OBJECTIVES: The changes of CSF flow dynamics in idiopathic normal pressure hydrocephalus (iNPH) are not fully elucidated. Most previous studies took the whole cardiac cycle as a unit. In this work, it is divided into systole and diastole phase and compared between iNPH patients and normal elderly and paid special attention to the change of netflow direction. MATERIALS AND METHODS: Twenty iNPH patients according to international guideline and twenty healthy volunteers were included in this study and examined by MRI...
March 1, 2017: Acta Neurologica Scandinavica
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