MRI in patients with auditory implants equipped with implanted magnets-an update : Overview and procedural management.

CONCLUSION: Respecting the manufacturer's instructions, MRI scans without removal of the magnet in patients with these auditory implants is safe. However, due to possible defects/dislocations of the implant that may occur and the reduced quality of the skull MRI images, the indication for MRI in devices with MRI certification should only be performed under close consultation between the investigating physicians, the implanting team supervising the patient and the radiologist. All other possible diagnostic procedures should be exhausted first. PMID: 30350108 [PubMed - as supplied by publisher]
Source: Der Radiologe - Category: Radiology Authors: Tags: Radiologe Source Type: research

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Conclusions: Poor cavity obliteration, a high rate of revision surgery and difficult differentiation between recurrent cholesteatoma and granulation tissue in CT scan was observed.
Source: Otology and Neurotology - Category: ENT & OMF Tags: MIDDLE EAR AND MASTOID DISEASE Source Type: research
Conclusion: Results for quantitative evaluation were similar in both the sequences. Gadolinium injection can be avoided only in surveillance studies.
Source: Otology and Neurotology - Category: ENT & OMF Tags: TUMORS OF THE EAR AND CRANIAL BASE Source Type: research
Conclusion: The development of LRSS pneumatization affects the removal rate of CS tumors in PAs. Preoperative analysis of LRSS development should be considered when planning EES against PA with CS invasion. PMID: 31819816 [PubMed]
Source: Surgical Neurology International - Category: Neurosurgery Tags: Surg Neurol Int Source Type: research
We describe an extremely rare case of SFT in the left preauricular region. The tumor lesion had gradually grown without pain or facial paralysis. Magnetic resonance imaging scan showed a circumscribed mass with high signal intensity on Gd-DTPA-enhanced T1-weighted images measuring approximately 3.0 cm in diameter. The tumor lesion was excised completely. Histological examination of the surgical specimen revealed proliferation of spindle tumor cells with a patternless pattern. Various amounts of collagen bundles intervened in the spindle tumor cells. The cellular atypia of the tumor cells was weak. Immunohistochemical studi...
Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology - Category: ENT & OMF Source Type: research
Publication date: Available online 11 December 2019Source: NeuroImageAuthor(s): Kenneth Wengler, Xiang He, Anissa Abi-Dargham, Guillermo HorgaAbstractNeuromelanin-sensitive MRI (NM-MRI) provides a noninvasive measure of the content of neuromelanin (NM), a product of dopamine metabolism that accumulates with age in dopamine neurons of the substantia nigra (SN). NM-MRI has been validated as a measure of both dopamine neuron loss, with applications in neurodegenerative disease, and dopamine function, with applications in psychiatric disease. Furthermore, a voxelwise-analysis approach has been validated to resolve substructure...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 11 December 2019Source: NeuroImageAuthor(s): Thomas A.W. Bolton, Valeria Kebets, Enrico Glerean, Daniela Zöller, Jingwei Li, B.T. Thomas Yeo, César Caballero-Gaudes, Dimitri Van De VilleAbstractThe impact of in-scanner motion on functional magnetic resonance imaging (fMRI) data has a notorious reputation in the neuroimaging community. State-of-the-art guidelines advise to scrub out excessively corrupted frames as assessed by a composite framewise displacement (FD) score, to regress out models of nuisance variables, and to include average FD as a covariate in group-level analys...
Source: NeuroImage - Category: Neuroscience Source Type: research
ConclusionsOur data suggest that the investigated brain tumors had an intact BBTB, which is impermeable to anticancer drugs, which are dual ABCB1/ABCG2 substrates. Therefore, effective drugs for antitumor treatment should have high passive permeability and lack ABCB1/ABCG2 substrate affinity.Trial registrationEuropean Union Drug Regulating Authorities Clinical Trials Database (EUDRACT), 2011-004189-13. Registered on 23 February 2012,https://www.clinicaltrialsregister.eu/ctr-search/search?query=2011-004189-13.
Source: EJNMMI Research - Category: Radiology Source Type: research
AbstractPurposeThe study is aimed to investigate the expression ofPAX3 in bilateral paravertebral muscles in adolescent idiopathic scoliosis (AIS) and controls, and to further clarify its association with the paravertebral muscle volume and curve severity.MethodsTen AIS patients and 10 age-matched controls with lumbar disc herniation were included. Bilateral biopsies of paravertebral muscles were obtained at the apical vertebral level for patients and at L5 level for controls. The concave and convex expression ofPAX3 was compared between the two groups. The AIS patients were evaluated with magnetic resonance imaging scan o...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
This study was approved by the institutional review board. Sixty patients diagnosed with cervical cancer by pathology were prospectively included. Female pelvic magnetic resonance imaging was performed using a 3 T magnetic resonance scanner; B1 and B2 images were obtained for evaluation. Two radiologists blinded to the scan parameters evaluated the images for signal loss in the background, spatial distortion, image ghosting, confidence in the lesion delineation, and overall image quality using a 5-point scoring system. The scores were compared using a paired Wilcoxon test. SI was measured in the B1 and B2 images for...
Source: European Journal of Radiology - Category: Radiology Source Type: research
Publication date: Available online 9 December 2019Source: NeuroImage: ClinicalAuthor(s): Yunzhe Xue, Fadi G. Farhat, Olga Boukrina, A.M. Barrett, Jeffrey R. Binder, Usman W. Roshan, William W. GravesAbstractAutomatic identification of brain lesions from magnetic resonance imaging (MRI) scans of stroke survivors would be a useful aid in patient diagnosis and treatment planning. It would also greatly facilitate the study of brain-behavior relationships by eliminating the laborious step of having a human expert manually segment the lesion on each brain scan. We propose a multi-modal multi-path convolutional neural network sys...
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
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