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Thoracic MRI

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https://www.readbyqxmd.com/read/28338452/differentiation-of-idiopathic-spinal-cord-herniation-from-dorsal-arachnoid-webs-on-mri-and-ct-myelography
#1
Randall Schultz, Andrew Steven, Aaron Wessell, Nancy Fischbein, Charles A Sansur, Dheeraj Gandhi, David Ibrahimi, Prashant Raghavan
OBJECTIVE Dorsal arachnoid webs (DAWs) and spinal cord herniation (SCH) are uncommon abnormalities affecting the thoracic spinal cord that can result in syringomyelia and significant neurological morbidity if left untreated. Differentiating these 2 entities on the basis of clinical presentation and radiological findings remains challenging but is of vital importance in planning a surgical approach. The authors examined the differences between DAWs and idiopathic SCH on MRI and CT myelography to improve diagnostic confidence prior to surgery...
March 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28337426/pathogen-identification-in-suspected-cases-of-pyogenic-spondylodiscitis
#2
Ahmad Farajzadeh Sheikh, Azar D Khosravi, Hamed Goodarzi, Roohangiz Nashibi, Alireaza Teimouri, Azim Motamedfar, Reza Ranjbar, Sara Afzalzadeh, Mehrandokht Cyrus, Mohammad Hashemzadeh
Pyogenic spinal infection continues to represent a worldwide problem. In approximately one-third of patients with pyogenic spondylodiscitis, the infectious agent is never identified. Of the cases that lead to organismal identification, bacteria are more commonly isolated from the spine rather than fungi and parasites. This study applied universal prokaryotic 16S rRNA PCR as a rapid diagnostic tool for the detection of bacterial agents in specimens from patients suspected of pyogenic spondylodiscitis. Gram and Ziehl-Neelsen staining were used as a preliminary screening measure for microbiologic evaluation of patient samples...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28324157/water-fat-mri-in-a-hibernator-reveals-seasonal-growth-of-white-and-brown-adipose-tissue-without-cold-exposure
#3
Amanda MacCannell, Kevin Sinclair, Lannette Friesen-Waldner, Charles A McKenzie, James F Staples
Obligate hibernators, such as ground squirrels, display circannual patterns which persist even under constant laboratory conditions, suggesting that they are regulated by endogenous rhythms. Brown adipose tissue (BAT) is important for thermogenesis during periodic arousals from hibernation when core body temperature rises spontaneously from 5 to 37 °C. In most small eutherians BAT growth requires several weeks of cold exposure. We hypothesized that in the thirteen-lined ground squirrel (Ictidomys tridecemlineatus), a hibernator, BAT growth is regulated, in part, by an endogenous rhythm and we predicted that this growth would precede the hibernation season without cold exposure...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28323691/mri-may-serve-as-a-valid-alternative-to-standing-radiography-in-evaluating-the-sagittal-alignment-of-the-upper-thoracic-spine
#4
Fei Wang, Xu Sun, Saihu Mao, Zhen Liu, Jun Qiao, Feng Zhu, Zezhang Zhu, Tao Pan, Ling Chen, Qinghua Zhao, Yong Qiu
STUDY DESIGN: This study is of a retrospective radiographic design. OBJECTIVE: The objective of the study was to compare supine magnetic resonance images (MRI) with standing x-ray scanning in the evaluation of the sagittal alignment of the upper thoracic spine. SUMMARY OF BACKGROUND DATA: X-ray films have been reported to be inaccurate in evaluating the proximal thoracic sagittal alignment because of poor visibility of the upper thoracic region...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28320469/epidural-spinal-angiolipoma-a-case-series
#5
Fei Fei Wang, Song Wang, Wen Hua Xue, Jing Liang Cheng
BACKGROUND: Spinal angiolipomas (SAL) are rare benign tumors, commonly presenting with slow progressive spinal cord compression. There are only about 170 cases identified so far. Magnetic resonance imaging (MRI) has become the modality of choice for SAL. The purpose of this article is to report three cases of SAL and their characteristic MRI features. CASE PRESENTATION: Three cases of epidual spinal angiolipoma from ethnic Han Chinese patients are presented here, including one lumbar and two thoracic tumors...
March 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28319497/vertebral-hemangioma-mimicking-bone-metastasis-in-68ga-psma-ligand-pet-ct
#6
Carlos Artigas, François-Xavier Otte, Marc Lemort, Roland van Velthoven, Patrick Flamen
Ga-PSMA PET/CT was performed in a 68-year-old man to evaluate recurrent prostate cancer due to elevated serum prostate-specific antigen level. Images showed a focal uptake in the prostatic gland, suggesting local relapse, and an intense uptake in the 12th thoracic vertebra, with no morphological abnormalities in CT slices. In order to confirm extraprostatic disease and before radiotherapy planning, a full-spine MRI was performed, resulting with the morphological pattern of a vertebral hemangioma. Hystological analysis confirmed the local relapse in the prostate...
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28318981/idiopathic-intradural-dorsal-thoracic-arachnoid-cysts-a-case-series-and-review-of-the-literature
#7
Heath French, Arjuna Somasundaram, Michael Biggs, Jonathon Parkinson, Rodney Allan, Jonathon Ball, Nicholas Little
BACKGROUND: Spinal intradural arachnoid cysts (SIAC) are cerebrospinal fluid (CSF) filled sacs formed by arachnoid membranes and may be either idiopathic or acquired. Idiopathic cysts represent a separate entity and their aetiology remains uncertain. By far the most difficult differential diagnosis is distinguishing between idiopathic anterior spinal cord herniation (IASCH) and dorsal thoracic intradural arachnoid cysts (TIAC), due to their similarity in radiological appearance. Cine-mode (SSFP) is emerging as a novel technique in the diagnosis and operative planning of SIAC...
March 17, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28296753/a-rare-thoracic-intraspinal-schwannoma-in-twin-pregnancy-with-aggravated-clinical-presence-a-case-report-following-care
#8
Ruiqi Chen, Anqi Xiao, Lu Xing, Chao You, Jiagang Liu
INTRODUCTION: This is the first case report about a thoracic intraspinal schwannoma in twin pregnancy with aggressive clinical presentation. CLINICAL PRESENCE AND DIAGNOSES: A 21-year-old woman presented with a 2-month history of back pain and slight lower extremity numbness and weakness, and her symptoms were misdiagnosed as normal reactions to pregnancy until she progressed to complete paralysis and incontinence within 2 weeks. She was then confirmed to have thoracic intraspinal schwannoma through MRI...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28295547/practitioner-perceptions-of-the-anesthetic-needs-for-magnetic-resonance-imaging-in-pediatric-patients
#9
Glenn E Mann, Adam Canter, Singh Nair, Donna LaMonica, Madelyn Kahana, Jennifer Yoo, Ellise Delphin
There is currently an increasing use of magnetic resonance imaging (MRI) as a diagnostic tool in the pediatric population(1). MRI is often viewed as an ideal diagnostic modality because it does not require exposure to ionizing radiation, provides superior soft tissue image quality compared with computed tomography (CT) and is thus well-suited for neurological, musculoskeletal, cardiac, thoracic, and abdominal studies(2). However, MRIs require patient cooperation and extended time periods of immobility, as the studies are often long, loud, and may induce claustrophobia (2-7)...
March 12, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28288466/quantitative-assessment-of-trunk-muscles-involvement-in-patients-with-myotonic-dystrophy-type-1-using-a-whole-body-muscle-magnetic-resonance-imaging
#10
Donghwi Park, Jin-Sung Park
OBJECTIVE: The aim of this study was to analyze the pattern of trunk muscles involvement through a muscle MRI, in relation to the clinical data of patients diagnosed with myotonic dystrophy type 1 (DM1). MATERIALS AND METHODS: Patients with DM1 who visited the neurology department were enrolled (n = 19). In all patients, the fatty degeneration of the muscle MRI in the lower cervical, upper thoracic, middle thoracic, and lumbosacral spine extensor muscle group and trunk flexor muscle group was evaluated...
March 14, 2017: European Neurology
https://www.readbyqxmd.com/read/28283076/prevalence-of-thoracic-vertebral-malformations-in-french-bulldogs-pugs-and-english-bulldogs-with-and-without-associated-neurological-deficits
#11
R Ryan, R Gutierrez-Quintana, G Ter Haar, Steven De Decker
Congenital vertebral malformations are common incidental findings in small breed dogs. This retrospective observational study evaluated the type and prevalence of thoracic vertebral malformations in 171 neurologically normal and 10 neurologically abnormal screw-tailed brachycephalic dogs. Neurologically normal dogs underwent CT for reasons unrelated to spinal disease, while affected dogs underwent MRI. Imaging studies were reviewed and vertebral malformations including hemivertebrae, block vertebrae, transitional vertebrae, and spina bifida were documented...
March 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28275492/localization-of-thoracic-duct-using-heavily-t2w-mri-for-intractable-post-esophagectomy-chylothorax-a-case-report
#12
Yi-Chien Chang, Yi-Ting Yen, Ming-Chung Chang, Yau-Lin Tseng
Post-esophagectomy chylothorax is a rare yet serious complication. Herein we report the case of a patient with intractable post-esophagectomy chylothorax despite medical treatment with total parenteral nutrition and octreotide, as well as prophylactic and repeated thoracic duct mass ligation. The patient was eventually treated with localization of thoracic duct using T2-weighted magnetic resonance imaging (T2W MRI), followed by video-assisted thoracoscopic thoracic duct ligation.
February 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28274619/pet-mri-of-the-thorax-abdomen-and-retroperitoneum-benefits-of-the-breathing-synchronized-scanning
#13
Jan Baxa, Eva Ferdova, Jiří Ferda
Hybrid imaging using various radiopharmaceuticals is currently essential not only in detection and therapy response monitoring of tumors, but also in assessment of inflammatory or systemic diseases. Combination of positron emission tomography (PET) and magnetic resonance imaging (MRI) is still relatively new method with great prospects of comprehensive assessment using anatomical and multiple functional information. However, benefits of PET/MRI in thorax, abdomen and retroperitoneum are not completely defined...
February 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28274020/role-of-cross-sectional-imaging-in-isolated-chest-wall-tuberculosis
#14
Deb Kumar Boruah, Shantiranjan Sanyal, Barun K Sharma, Arjun Prakash, Dhabal D Dhingani, Karobi Bora
INTRODUCTION: Isolated chest wall tuberculosis though a rare entity, the incidence of it has been on rise among immunocompromised population making it an important challenging diagnosis for the physicians. Its clinical presentation may resemble pyogenic chest wall abscess or chest wall soft tissue tumour. Sometimes it is difficult to detect clinically or on plain radiograph. AIM: The present study was conducted with an aim to evaluate the common sites and varying appearances of isolated chest wall tuberculosis...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28254591/a-small-leak-will-sink-the-brain-targeted-c1-c2-patching
#15
Thomas Decramer, Pieter Jan Van Dyck-Lippens, Tom P Franken, Philippe Demaerel, Johannes van Loon, Tom Theys
BACKGROUND: Spontaneous intracranial hypotension (SIH) syndrome results from spontaneous spinal CSF leaks. The first treatment of choice consists of lumbar epidural blood patching. If this fails further imaging is mandatory to explore the possibility of targeted therapy. CASE DESCRIPTION: We describe a case of a 50-year old woman who developed spontaneous intracranial hypotension after minor blunt cervical trauma, complicated with bilateral subdural hematomas. Two lumbar epidural blood patches were unsuccessful...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28253945/-pyogenic-spinal-infections-in-adults-a-5-year-experience-from-a-tertiary-care-centre
#16
O Džupová, R Cihlářová
PURPOSE OF THE STUDY To describe epidemiological and clinical features of pyogenic spinal infections in patients treated at the Department of Infectious, Parasitic and Tropical Diseases of the Hospital Na Bulovce in 2010-2014, and to analyse a predictive significance of selected variables. MATERIAL AND METHODS A single-centre retrospective cohort study carried out from 1.1.2010 to 31.12.2014 enrolled adult patients with septic spondylitis, discitis and facet joint infections. Recorded parameters included: demographics, chronic comorbidities, time to diagnosis, radiological work-up, anatomical level of spinal infection, source of infection, etiological agent, complications, treatment and outcomes...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28251329/spinal-cord-arteriovenous-shunts-of-the-ventral-anterior-sulcus-anatomical-clinical-and-therapeutic-considerations
#17
Luca Roccatagliata, Shushi Kominami, Antonin Krajina, Robin Sellar, Michael Soderman, René Van den Berg, Hubert Desal, Stephanie Condette-Auliac, Georges Rodesch
INTRODUCTION: Ventral sulcus spinal cord arteriovenous shunts (SCAVS) are rare vascular lesions that are located outside the spinal cord, are exclusively vascularized by the anterior spinal axis, and drain exclusively through the anterior spinal vein. We report the anatomical, clinical, and neuro-radiological features of SCAVS managed by our team. METHODS: We conducted a retrospective study of patients with SCAVSs evaluated by the senior author of this report (GR) between 1981 and 2014...
March 1, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28251190/upright-prone-and-supine-spinal-morphology-and-alignment-in-adolescent-idiopathic-scoliosis
#18
Rob C Brink, Dino Colo, Tom P C Schlösser, Koen L Vincken, Marijn van Stralen, Steve C N Hui, Lin Shi, Winnie C W Chu, Jack C Y Cheng, René M Castelein
BACKGROUND: Patients with adolescent idiopathic scoliosis (AIS) are usually investigated by serial imaging studies during the course of treatment, some imaging involves ionizing radiation, and the radiation doses are cumulative. Few studies have addressed the correlation of spinal deformity captured by these different imaging modalities, for which patient positioning are different. To the best of our knowledge, this is the first study to compare the coronal, axial, and sagittal morphology of the scoliotic spine in three different body positions (upright, prone, and supine) and between three different imaging modalities (X-ray, CT, and MRI)...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28250637/analysis-of-the-spinal-nerve-roots-in-relation-to-the-adjacent-vertebral-bodies-with-respect-to-a-posterolateral-vertebral-body-replacement-procedure
#19
Waleed Awwad, Jonathan Bourget-Murray, Nadil Zeiadin, Juan P Mejia, Thomas Steffen, Abdulrahman D Algarni, Khalid Alsaleh, Jean Ouellet, Michael Weber, Peter F Jarzem
OBJECTIVE: This study aims to improve the understanding of the anatomic variations along the thoracic and lumbar spine encountered during an all-posterior vertebrectomy, and reconstruction procedure. This information will help improve our understanding of human spine anatomy and will allow better planning for a vertebral body replacement (VBR) through either a transpedicular or costotransversectomy approach. SUMMARY OF BACKGROUND DATA: The major challenge to a total posterior approach vertebrectomy and VBR in the thoracolumbar spine lies in the preservation of important neural structures...
January 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28245271/association-between-vertebral-cross-sectional-area-and-lumbar-lordosis-angle-in-adolescents
#20
Tishya A L Wren, Patricia C Aggabao, Ervin Poorghasamians, Thomas A Chavez, Skorn Ponrartana, Vicente Gilsanz
Lumbar lordosis (LL) is more prominent in women than in men, but the mechanisms responsible for this discrepancy are poorly defined. A recent study indicates that newborn girls have smaller vertebral cross-sectional area (CSA) when compared to boys-a difference that persists throughout life and is independent of body size. We determined the relations between vertebral cross-sectional area (CSA) and LL angle and whether sex differences in lumbar lordosis are related to sex differences in vertebral CSA. Using multi-planar magnetic resonance imaging (MRI), we measured vertebral cross-sectional area (CSA) and vertebral height of the spine of 40 healthy boys and 40 girls, ages 9-13 years...
2017: PloS One
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