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Mri interventions

Bruce Cv Campbell, Mark W Parsons
This review summarizes the current state of knowledge regarding the use of imaging to guide stroke treatment. Brain imaging plays a central role in the diagnosis of stroke and identification of the mechanism of stroke, which is relevant to acute treatment, prognosis, and secondary prevention. The chief potential modalities are computed tomography (CT) and magnetic resonance imaging (MRI). Currently, most imaging occurs in hospital but mobile stroke units have expanded CT brain imaging into the prehospital field...
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
Ali S Haider, Christopher S Graffeo, Avital Perry, Lucas P Carlstrom, Terry C Burns
Insular gliomas were previously considered inoperable lesions and were typically treated via biopsy, chemotherapy and/or radiation, if not observation alone. Stereotactic biopsies of low grade insular gliomas can underestimate tumor grade or fail to establish malignancy. Moreover, the survival advantages of maximal safe resection for insular lesions are increasingly being recognized. As such, early surgical resection is increasingly being performed. As with most lesions, a differential diagnosis exists for apparent insular gliomas, with definitive diagnosis generally obtained upon resection...
January 11, 2018: Curēus
Marc-Etienne Parent, François Vézina, Nathalie Carrier, Ariel Masetto
OBJECTIVE: To analyze the indications for and clinical procedures resulting from knee magnetic resonance imaging (MRI) in older patients. DESIGN: We retrospectively analyzed 215 medical records of patients 50 years of age and older who had undergone a unilateral knee MRI in 2009. SETTING: Centre hospitalier universitaire de Sherbrooke in Quebec. PARTICIPANTS: Patients 50 years of age and older who underwent a knee MRI in 2009...
March 2018: Canadian Family Physician Médecin de Famille Canadien
Maggie A Stanislawski, Catherine A Lozupone, Brandie D Wagner, Merete Eggesbø, Marci K Sontag, Nichole Nusbacher, Mercedes Martinez, Dana Dabelea
BACKGROUND: Recent evidence supports that the gut microbiota may be involved in the pathophysiology of non-alcoholic fatty liver disease (NAFLD), and may also offer avenues for treatment or prevention. METHODS: We investigated the associations among gut microbiota, diet and hepatic fat fraction (HFF) in 107 adolescents. Magnetic Resonance Imaging (MRI) was used to assess HFF, and 16S rRNA gene sequencing was performed on collected fecal samples. Dietary intake was assessed using Food Frequency Questionnaires...
March 14, 2018: Pediatric Research
Dong Zhang, Pengcheng Xu, Hongyu Qiao, Xin Liu, Liangping Luo, Wenhua Huang, Heye Zhang, Changzheng Shi
BACKGROUND: Cerebrovascular events are frequently associated with hemodynamic disturbance caused by internal carotid artery (ICA) stenosis. It is challenging to determine the ischemia-related carotid stenosis during the intervention only using digital subtracted angiography (DSA). Inspired by the performance of well-established FFRct technique in hemodynamic assessment of significant coronary stenosis, we introduced a pressure-based carotid arterial functional assessment (CAFA) index generated from computational fluid dynamic (CFD) simulation in DSA data, and investigated its feasibility in the assessment of hemodynamic disturbance preliminarily using pressure-wired measurement and arterial spin labeling (ASL) MRI as references...
March 12, 2018: Biomedical Engineering Online
Jiajia Wu, Yechen Lu, Xuyun Hua, Shujie Ma, Jianguang Xu
OBJECTIVE: We utilized fMRI to provide a longitudinal description of cortical plasticity caused by electroacupuncture(EA) of sciatic nerve transection and direct anastomosis rats. METHODS: Sixteen rats of sciatic nerve transection and direct anastomosis model were randomly divided into intervention and control group. EA intervention in the position of ST-36, GB-30 was conducted continuously for 4 months in the intervention group. Functional MRI and gait assessment was performed every one month after intervention...
March 7, 2018: World Neurosurgery
Ghazwan Abdulla Hasan, Saif Mohammed Kani, Ahmed Alqatub
INTRODUCTION: Spinal Epidural abscess (SEA) is an uncommon pathology that needs an urgent intervention to decompress the pressure on the spinal epidural sac, cord, and roots. The authors report a rare case of a young adult with lumbar spinal epidural tuberculous abscess occupying the spinal canal from L2-L5 vertebrae with extesion to the posterior paraspinal muscles and presenting with bilateral progressive lower limb weakness.   Case report: A 42 years old male teacher presented with a 15-day history of progressive difficulty to walking and bilateral lower limb weakness associated with fever, malaise and later on urinary incontinence...
2018: SICOT-J
Soliman Oushy, Lucas P Carlstrom, William E Krauss
BACKGROUND AND IMPORTANCE: Transverse ligament cysts (TLC) are rare, surgically complex lesions arising posterior to the odontoid process of C2. Direct compression of the cervicomedullary junction is a devastating consequence of untreated lesions. We report the first case of spontaneous TLC regression without surgical intervention. CLINICAL PRESENTATION: A 75-yr-old woman presented to an outside hospital with acute episodes of left face and upper extremity numbness...
March 5, 2018: Neurosurgery
Y J Daniel Yang, Tandra Allen, Sebiha M Abdullahi, Kevin A Pelphrey, Fred R Volkmar, Sandra B Chapman
Measuring treatment efficacy in individuals with Autism Spectrum Disorder (ASD) relies primarily on behaviors, with limited evidence as to the neural mechanisms underlying these behavioral gains. This pilot study addresses this void by investigating neural and behavioral changes in a Phase I trial in young adults with high-functioning ASD who received an evidence-based behavioral intervention, Virtual Reality-Social Cognition Training over 5 weeks for a total of 10 hr. The participants were tested pre- and post-training with a validated biological/social versus scrambled/nonsocial motion neuroimaging task, previously shown to activate regions within the social brain networks...
March 8, 2018: Autism Research: Official Journal of the International Society for Autism Research
N Crespo-Eguilaz, P D Dominguez, M Vaquero, J Narbona
AIM: To contribute to neuropsychological profiling of developmental amnesia subsequent to bilateral damage to both hippocampi in early age. SUBJECTS AND METHODS: The total sample of 24 schoolchildren from both sexes is distributed in three groups: perinatal hypoxic-ischaemic encephalopathy and everyday complaints of memory in school age (n = 8); perinatal hypoxic-ischaemic encephalopathy without memory complaints (n = 7); and a group of typically developing (n = 9)...
March 1, 2018: Revista de Neurologia
David Bursill, Nicola Dalbeth
PURPOSE OF REVIEW: Most current clinical guidelines for gout management advocate a treat-to-target serum urate approach, although notable differences exist. Serum urate is a rational target for gout treatment given the central role of urate in disease causality, its association with key outcomes and its practicality of use in clinical practice. This review analyses the evidence for this strategy in gout. RECENT FINDINGS: Recent studies have confirmed the efficacy of urate-lowering therapy in achieving serum urate targets, both in trials using fixed doses and those applying a treat-to-target strategy...
March 8, 2018: Current Rheumatology Reports
Antonio F Corno, Saravanan Durairaj, Robert H Anderson
Aorto-ventricular tunnel is an extremely rare congenital heart defect, consisting of failure of attachment of an aortic leaflet along the semilunar hinge. In all published reports the leaflet involved was either the right coronary leaflet, most frequently, or the left coronary leaflet, in most of the cases opening toward the left ventricle, with only one-eighth of the reported cases communicating with the right ventricle. Treatment of the aorto-ventricular tunnel has been anecdotally reported by interventional closure with a device and more frequently with surgical approach, either as an isolated malformation or as associated lesions...
2018: Frontiers in Pediatrics
Gabriel Ziegler, Patrick Grabher, Alan Thompson, Daniel Altmann, Markus Hupp, John Ashburner, Karl Friston, Nikolaus Weiskopf, Armin Curt, Patrick Freund
OBJECTIVE: To quantify atrophy, demyelination, and iron accumulation over 2 years following acute spinal cord injury and to identify MRI predictors of clinical outcomes and determine their suitability as surrogate markers of therapeutic intervention. METHODS: We assessed 156 quantitative MRI datasets from 15 patients with spinal cord injury and 18 controls at baseline and 2, 6, 12, and 24 months after injury. Clinical recovery (including neuropathic pain) was assessed at each time point...
March 7, 2018: Neurology
Vanessa Siffredi, Vicki Anderson, Alissandra McIlroy, Amanda G Wood, Richard J Leventer, Megan M Spencer-Smith
OBJECTIVES: Agenesis of the corpus callosum (AgCC), characterized by developmental absence of the corpus callosum, is one of the most common congenital brain malformations. To date, there are limited data on the neuropsychological consequences of AgCC and factors that modulate different outcomes, especially in children. This study aimed to describe general intellectual, academic, executive, social and behavioral functioning in a cohort of school-aged children presenting for clinical services to a hospital and diagnosed with AgCC...
March 7, 2018: Journal of the International Neuropsychological Society: JINS
Hyeonseung Hwang, Jeong-Sik Yu, Eun-Suk Cho, Joo Hee Kim, Jae-Joon Chung
Our purpose was to assess the endoscopic ultrasonography (EUS) features of serous cystic neoplasms (SCNs) of the pancreas in determining the surgical removal compared with computed tomography (CT) and magnetic resonance imaging (MRI) features. For 33 consecutive patients with 34 surgically confirmed SCNs over the past 11 years, preoperative EUS features were compared with those of CT and MRI (CT&MRI). Besides the lesion size and location, a retrospective analysis of the various imaging features was performed by 2 observers to understand the characteristics that determine the need for surgical intervention in terms of multiplicity of locules, calcification, mural thickening, mural nodules, ductal communication, and main pancreatic duct dilatation in addition to the gross morphologic type: microcystic, macrocystic (>1 cm), mixed, or solid...
March 5, 2018: Ultrasound Quarterly
Lorraine James, Animesh Tandon, Alan Nugent, Sadia Malik, Claudio Ramaciotti, Gerald Greil, Luis Zabala, Joseph Forbess, Tarique Hussain
Previous studies have shown that cardiac MRI can be used to evaluate the suitability for infants to undergo the Glenn operation after having undergone the Norwood procedure. We sought to analyse our institutional data retrospectively to identify whether such a policy would be advisable in the current era. We reviewed patients who underwent the Norwood procedure between 1 January, 2006 and 1 January, 2016. All patients undergoing evaluation for the Glenn procedure received clinical evaluation, echocardiography, and cardiac catheterisation...
March 6, 2018: Cardiology in the Young
Nilukshana Yogendranathan, H M M T B Herath, W D Jayamali, Anne Thushara Matthias, Aruna Pallewatte, Aruna Kulatunga
BACKGROUND: Spinal cord infarction is an uncommon condition. Anterior cord syndrome present with paraparesis or quadriparesis with sparing of vibration and proprioceptive senses. The common causes of anterior cord syndrome are aortic dissection and aortic surgical interventions. Spontaneous unruptured nondissected aortic aneurysms with intramural thrombus can rarely cause anterior cord infarctions. CASE PRESENTATION: We report a case of anterior spinal cord syndrome due to aneurysm of the thoracic aorta with a mural thrombus...
March 5, 2018: BMC Cardiovascular Disorders
(no author information available yet)
Pituitary abscess (PA) is a rare intrasellar infectious disease presented in less than one percent of all cases of pituitary disease.We reported a case of a 58-year-old woman with a history of type 2 diabetes (T2DM) exhibited with headaches, nasal discharge, anosmia, diabetes insipidus and hypopituitarism due to PA, she was diagnosed based on clinical presentations, endocrine examination and MRI image features. She was treated with nasal wash and antibiotic therapy without surgical intervention. She has received hormone replacement therapy for one year and her condition has gradually become stabilized...
February 5, 2018: Neuro Endocrinology Letters
Satoshi Yashiro, Hiroyuki Kameda, Ai Chida, Yusuke Todate, Yutaka Hasegawa, Kan Nagasawa, Ikuko Uwano, Makoto Sasaki, Kuniaki Ogasawara, Yasushi Ishigaki
AIM: Progress in neuroimaging techniques allows us to investigate the microvasculature characteristics including lenticulostriate arteries (LSA), which are closely associated with lacunar infarction. Because ischemic stroke is a more critical health problem in East Asian than in other populations, in order to clarify pathological changes underlying cerebral small vessel disease (SVD), we projected an imaging analysis of LSA using high-resolution brain magnetic resonance imaging (MRI) in middle-aged Japanese subjects with type 2 diabetes...
March 5, 2018: Journal of Atherosclerosis and Thrombosis
Thusitha Mabotuwana, Vadiraj Hombal, Sandeep Dalal, Christopher S Hall, Martin Gunn
PURPOSE: Radiology reports often contain follow-up imaging recommendations. However, these recommendations are not always followed up by referring physicians and patients. Failure to comply in a timely manner can lead to delayed treatment, poor patient outcomes, unnecessary testing, lost revenue, and legal liability. Therefore, the primary objective of this research was to determine adherence rates to follow-up recommendations. METHODS: We extracted radiology examination-related data, including report text, for examinations performed between January 1, 2010, and February 28, 2017, from the radiology information system at an academic institution...
March 2018: Journal of the American College of Radiology: JACR
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