keyword
MENU ▼
Read by QxMD icon Read
search

MRI imaging

keyword
https://www.readbyqxmd.com/read/29351692/homonymous-hemianopia-in-children-and-adolescents-an-mri-study
#1
Manja Haaga, Susanne Trauzettel-Klosinski, Anna Krumm, Stephan Küster, Iliya Ivanov, Angelika Cordey, Claudia Gehrlich, Martin Staudt
AIM:  Diagnosing homonymous hemianopia (HH) in children can be difficult due to inability to comply with perimetry. Therefore, HH can often only be suspected by magnetic resonance imaging (MRI) showing lesions to the retrochiasmatic visual pathways. The aim of our retrospective observational cross-sectional study was to improve the radiologic detection of HH. METHODS:  MRIs of 21 subjects (5-17 years old) with ophthalmologically confirmed HH (14 complete, 7 incomplete hemianopias) were analyzed...
January 19, 2018: Neuropediatrics
https://www.readbyqxmd.com/read/29351654/what-is-the-role-of-imaging-in-the-clinical-diagnosis-of-osteoarthritis-and-disease-management
#2
Xia Wang, Win Min Oo, James M Linklater
While OA is predominantly diagnosed on the basis of clinical criteria, imaging may aid with differential diagnosis in clinically suspected cases. While plain radiographs are traditionally the first choice of imaging modality, MRI and US also have a valuable role in assessing multiple pathologic features of OA, although each has particular advantages and disadvantages. Although modern imaging modalities provide the capability to detect a wide range of osseous and soft tissue (cartilage, menisci, ligaments, synovitis, effusion) OA-related structural damage, this extra information has not yet favourably influenced the clinical decision-making and management process...
January 16, 2018: Rheumatology
https://www.readbyqxmd.com/read/29351431/feasibility-of-phase-contrast-cine-magnetic-resonance-imaging-for-measuring-blood-flow-in-the-sheep-fetus
#3
An Qi Duan, Jack R T Darby, Jia Yin Soo, Mitchell C Lock, Meng Yuan Zhu, Lucy V Flynn, Sunthara Rajan Perumal, Christopher K Macgowan, Joseph B Selvanayagam, Janna L Morrison, Mike Seed
Phase-contrast cine MRI (PC-MRI) is the gold-standard non-invasive technique for measuring vessel blood flow and has previously been applied in the human fetal circulation. We aimed to assess the feasibility of using PC-MRI to define the distribution of the fetal circulation in sheep. Fetuses were catheterized at 119-120 days gestation (term, 150 days) and underwent MRI at 123 days gestation under isoflurane anesthesia, ventilated at a FiO2 of 1.0. PC-MRI was performed using a fetal arterial blood pressure catheter signal for cardiac triggering...
December 13, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29350650/clinical-and-instrumental-assessment-of-herniated-discs-after-nucleoplasty-a-preliminary-study
#4
Alessandro Liguori, Federica Galli, Martina Gurgitano, Anna Borelli, Marco Pandolfi, Ferdinando Caranci, Alberto M Magenta Biasina, Giovanni G M Pompili, Claudia L Piccolo, Vittorio Miele, Carlo Masciocchi, Giampaolo Carrafiello
BACKGROUND AND AIM: The therapy for low back pain boasts different approaches; one of these is nucleoplasty. We wanted to assess the effectiveness of nucleoplasty both by clinical response both by MR imaging evaluation, including even extrusions larger than one third of the spinal canal. METHODS: Fifty-seven patients were treated with nucleoplasty in our hospital, 11 of these patients accepted both clinical and MRI evaluation after six months from treatment. The clinical evaluation was performed with Visual Analogue Scale (VAS) of pain, scored before and after the procedure...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350649/magnetic-resonance-imaging-in-degenerative-disease-of-the-lumbar-spine-fat-saturation-technique-and-contrast-medium
#5
Paola D'Aprile, Michelangelo Nasuto, Alfredo Tarantino, Giuseppe Guglielmi, J Randy Jinkins
PURPOSE: To examine both anterior and posterior elements of the lumbar spine in patients with low back pain using MRI T2-weighted sequences with Fat Saturation (FS) and contrast enhanced T1-weighted sequences with FS. MATERIALS AND METHODS: Two thousand eight hundred and twenty (2820) patients (1628 male, 1192 female, mean age 54) presenting low back pain underwent MRI standard examination (Sagittal T1w TSE and T2w TSE, axial T1 SE) with the addition of sagittal and axial T2w Fat Sat (FS) sequences...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350642/acute-and-overuse-elbow-trauma-radio-orthopaedics-overview
#6
Elisabetta Antonia Nocerino, Davide Cucchi, Paolo Arrigoni, Marco Brioschi, Cristiano Fusi, Eugenio A Genovese, Carmelo Messina, Pietro Randelli, Carlo Masciocchi, Alberto Aliprandi
The correct management of acute, subacute and overuse-related elbow pathologies represents a challenging diagnostic and therapeutic problem. While major trauma frequently requires a rapid surgical intervention, subluxation and minor trauma allow taking more time for diagnostics and planning the correct elective treatment after careful clinical and radiological investigation. In these conditions, communication between orthopaedic surgeon and radiologist allow to create a detailed radiology report, tailored to the patient's and surgeon's needs and optimal to plan proper management...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350639/dynamic-mri-in-the-evaluation-of-the-spine-state-of-the-art
#7
Giulia Michelini, Antonella Corridore, Silvia Torlone, Federico Bruno, Claudia Marsecano, Raffaella Capasso, Ferdinando Caranci, Antonio Barile, Carlo Masciocchi, Alessandra Splendiani
INTRODUCTION: Degenerative disease of the spine is a generic term encompassing a wide range of different disease processes, which leads to spinal instability; traumatic/neoplastic events can accelerate this aging process. Therefore, the dynamic nature of the spine and its mobility across multiple segments is difficult to depict with any single imaging modality. METHODS: A review of PubMed databases for articles published about kMRI in patients with cervical and lumbar spinal desease was performed...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350638/weight-bearing-mri-of-the-knee-a-review-of-advantages-and-limits
#8
Federico Bruno, Antonio Barile, Francesco Arrigoni, Antonella Laporta, Anna Russo, Marina Carotti, Alessandra Splendiani, Ernesto Di Cesare, Carlo Masciocchi
Standard knee imaging with MRI is usually performed with patient in recumbent position under non-weight-bearing conditions. Recently, magnetic resonance imaging systems to scan the knee joint under weight bearing conditions has been proposed as an approach to improve the clinical utility of musculoskeletal MRI. Imaging under loading can be useful to understand the natural motion behavior of the knee joint and to identify conditions that are challenging to diagnose by using standard position. We reviewed the literature on weight-bearing MR imaging of the knee to describe the current state of use of such MRI technologies, evaluating the advantages and the potential limitations of these technologies...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350637/clinical-utility-of-eco-color-power-doppler-ultrasonography-and-contrast-enhanced-magnetic-resonance-imaging-for-interpretation-and-quantification-of-joint-synovitis-a-review
#9
Marina Carotti, Vittoria Galeazzi, Francesca Catucci, Marcello Zappia, Francesco Arrigoni, Antonio Barile, Andrea Giovagnoni
With the introduction of new biologics such as anti-TNF-alpha antibodies and other therapies in the treatment of inflammatory arthritis, capable of halting joint destruction and functional disability, there are new pressures on diagnostic and prognostic imaging. Early demonstration of pre-erosive inflammatory features and monitoring of the long-term effects of treatment are becoming increasingly important. Early detection of synovitis offers advantages in terms of allowing early instigation of therapy and may allow the identification of those patients displaying more aggressive disease who might benefit from early intervention with expensive DMARD therapy...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350636/imaging-of-pediatric-foot-disorders
#10
Alfonso Reginelli, Anna Russo, Fabrizio Turrizziani, Roberto Picascia, Elisa Micheletti, Vittoria Galeazzi, Umberto Russo, Assunta Sica, Fabrizio Cioce, Alberto Aliprandi, Andrea Giovagnoni, Salvatore Cappabianca
Infants and children undergo imaging studies to evaluate a wide variety of congenital and acquired disorders. Imaging protocols have to consider the patient's comfort, level of anxiety, and smaller size. The first imaging study is usually made with plain radiographs. The routine radiographic examination of the foot includes the anteroposterior (AP), lateral, and oblique projections. Magnetic Resonance Imaging (RMI) provides excellent anatomic detail of cartilage, vasculature and soft tissue thanks to superior soft tissue contrast and spatial resolution, so is valuable in many cases...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350635/magnetic-resonance-imaging-correlates-of-benign-and-malignant-alterations-of-the-spinal-bone-marrow
#11
Ferdinando Caranci, Enrico Tedeschi, Lorenzo Ugga, Alessandra D'Amico, Serena Schipani, Silvia Bartollino, Claudio Russo, Alessandra Splendiani, Francesco Briganti, Marcello Zappia, Mariarosa A B Melone, Carlo Maschiocchi, Luca Brunese
BACKGROUND AND AIM OF THE WORK: Bone marrow (BM) abnormalities in the spine are a common, sometimes unexpected, finding on Magnetic Resonance Imaging (MRI), which is the most sensitive imaging modality to evaluate the marrow, and their interpretation can be difficult for the unexperienced radiologist. In this review, the MRI appearance of normal age-related BM changes, as well as the imaging features of benign and malignant diseases, are presented. DISCUSSION: A large variety of BM signal alterations has been identified and described, including normal variants, BM reconversion,  degenerative changes, infections, spondyloarthritis and osteonecrosis, trauma, neoplastic lesions (both primary or metastatic), post-radiation and chemotherapy sequelae...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350634/mri-of-popliteo-meniscal-fasciculi-of-the-knee-a-pictorial-review
#12
Marcello Zappia, Alfonso Reginelli, Vito Chianca, Michela Carfora, Francesco Di Pietto, Germano Iannella, Pier Paolo Mariani, Mariano Di Salvatore, Silvia Bartollino, Nicola Maggialetti, Salvatore Cappabianca, Luca Brunese
The popliteomeniscal fascicules (PMFs) provide the attachment of the lateral meniscus to the popliteus musculotendinous region, forming the floor and the roof the popliteal hiatus. In the second half of 1900's, some anatomic studies claim the important function of the PMF as stabilizers of the lateral meniscus; these anatomical structures work in conjunction with the popliteus musculotendinous unit to prevent excessive lateral meniscal movement and possible meniscus subluxation. A correct diagnosis of the PMFs pathology is crucial to establish the suitable surgical treatment for each patient...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350608/acute-transverse-myelitis-following-scrub-typhus-a-case-report-and-review-of-the-literature
#13
Hyun-Seung Ryu, Bong Ju Moon, Jae-Young Park, Sang-Deok Kim, Seung-Kwon Seo, Jung-Kil Lee
Context Scrub typhus is an acute febrile disease caused by Orientia tsutsugamushi. The disease can usually involve the lungs, heart, liver, spleen and brain through hematogenous dissemination. However, very rarely, acute transverse myelitis in the spinal cord develops from scrub typhus. We present a case of acute transverse myelitis following scrub typhus with a review of the literature. Findings A 66-year-old male visited a hospital for general myalgia, mild headache, and fever in October. He was noted to have thick, black papule skin on his abdomen, which was highly suggestive of scrub typhus...
January 19, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29350599/prognostic-factors-for-progression-in-atypical-meningioma
#14
Shakir I Shakir, Luis Souhami, Kevin Petrecca, Jose João Mansure, Khushdeep Singh, Valerie Panet-Raymond, George Shenouda, Amal A Al-Odaini, Bassam Abdulkarim, Marie-Christine Guiot
OBJECTIVE The optimal adjuvant management for atypical meningiomas remains controversial. The aim of this study was to review long-term outcomes to identify potential prognostic factors for disease progression. METHODS From August 1992 to August 2013, 70 patients with atypical meningioma were treated at the authors' institution. Pathology revision was performed based on WHO 2007 criteria. Patients with multiple tumors, neurofibromatosis Type 2, or inadequate imaging follow-up were not eligible. The authors performed pre- and postoperative serial measurements of tumor volume from MRI...
January 19, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29350598/diffusion-tensor-imaging-and-ventricle-volume-quantification-in-patients-with-chronic-shunt-treated-hydrocephalus-a-matched-case-control-study
#15
Kristy Tan, Avital Meiri, Wenzhu B Mowrey, Rick Abbott, James T Goodrich, Adam L Sandler, Asif K Suri, Michael L Lipton, Mark E Wagshul
OBJECTIVE The object of this study was to use diffusion tensor imaging (DTI) and tract-based spatial statistics (TBSS) to characterize the long-term effects of hydrocephalus and shunting on white matter integrity and to investigate the relationship of ventricular size and alterations in white matter integrity with headache and quality-of-life outcome measures. METHODS Patients with shunt-treated hydrocephalus and age- and sex-matched healthy controls were recruited into the study and underwent anatomical and DTI imaging on a 3-T MRI scanner...
January 19, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29350595/motor-network-recovery-in-patients-with-chronic-spinal-cord-compression-a-longitudinal-study-following-decompression-surgery
#16
Kayla Ryan, Sandy Goncalves, Robert Bartha, Neil Duggal
OBJECTIVE The authors used functional MRI to assess cortical reorganization of the motor network after chronic spinal cord compression and to characterize the plasticity that occurs following surgical intervention. METHODS A 3-T MRI scanner was used to acquire functional images of the brain in 22 patients with reversible cervical spinal cord compression and 10 control subjects. Controls performed a finger-tapping task on 3 different occasions (baseline, 6-week follow-up, and 6-month follow-up), whereas patients performed the identical task before surgery and again 6 weeks and 6 months after spinal decompression surgery...
January 19, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29350576/posterior-reversible-encephalopathy-syndrome-in-stroke-prone-spontaneously-hypertensive-rats-on-high-salt-diet
#17
Fanny Herisson, Iris Zhou, Jerome Mawet, E Du, Arnavaz H Barfejani, Tao Qin, Marilyn J Cipolla, Philip Z Sun, Natalia S Rost, Cenk Ayata
Stroke-prone spontaneously hypertensive rats (SHRSP) on high-salt diet are characterized by extremely high arterial pressures, and have been endorsed as a model for hypertensive small vessel disease and vascular cognitive impairment. However, rapidly developing malignant hypertension is a well-known cause of posterior reversible encephalopathy syndrome (PRES) in humans, associated with acute neurological deficits, seizures, vasogenic cerebral edema and microhemorrhages. In this study, we aimed to examine the overlap between human PRES and SHRSP on high-salt diet...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29350571/intimate-partner-violence-perpetration-corresponds-to-a-dorsal-ventral-gradient-in-medial-pfc-reactivity-to-interpersonal-provocation
#18
David S Chester, C Nathan DeWall
Intimate partner violence (IPV) perpetration is often preceded by perceived interpersonal provocations such as slights, insults, and rejections. Yet the neural mechanisms that link provocation to IPV remain unclear. In the context of interactions with strangers, the medial prefrontal cortex (MPFC) has been repeatedly shown to respond to provocation, with more dorsal activation associated with more aggressive reactions and more ventral activation associated with less aggressive reactions. We used functional brain imaging to test whether this dorsal-ventral MPFC reactivity gradient would also correlate with greater aggression towards an unexamined target: intimate partners...
January 19, 2018: Social Neuroscience
https://www.readbyqxmd.com/read/29350537/cartilage-morphological-and-histological-findings-after-reconstruction-of-the-glenoid-with-an-iliac-crest-bone-graft
#19
Alexander Auffarth, Herbert Resch, Nicholas Matis, Martin Hudelmaier, Wolfgang Wirth, Rosemarie Forstner, Daniel Neureiter, Andreas Traweger, Philipp Moroder
BACKGROUND: The J-bone graft is presumably representative of iliac crest bone grafts in general and allows anatomic glenoid reconstruction in cases of bone defects due to recurrent traumatic anterior shoulder dislocations. As a side effect, these grafts have been observed to be covered by some soft, cartilage-like tissue when arthroscopy has been indicated after such procedures. PURPOSE: To evaluate the soft tissue covering of J-bone grafts by use of magnetic resonance imaging (MRI) and histological analysis...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29350437/diffusion-tensor-imaging-mri-of-sickle-cell-kidney-disease-initial-results-and-comparison-with-iron-deposition
#20
Shannon B Donnola, Connie M Piccone, Lan Lu, Joshua Batesole, Jane Little, Katherine M Dell, Chris A Flask
Chronic kidney disease (CKD) occurs in over one-third of patients with sickle cell disease (SCD) and can progress to end-stage renal disease. Unfortunately, current clinical assessments of kidney function are insensitive to early-stage CKD. Previous studies have shown that diffusion magnetic resonance imaging (MRI) can sensitively detect regional renal microstructural changes associated with early-stage CKD. However, previous MRI studies in patients with SCD have been largely limited to the detection of renal iron deposition assessed by T2 * relaxometry...
January 19, 2018: NMR in Biomedicine
keyword
keyword
117815
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"