Filtered By:
Procedure: MRI Scan

This page shows you your search results in order of date. This is page number 9.

Order by Relevance | Date

Total 214 results found since Jan 2013.

Clinical characteristics of adverse reaction to radiocontrast media in children: a single center experience
Radiocontrast media are used widely in medical imaging to improve the diagnostic accuracy. However, studies on the adverse reaction of radiocontrast media in children are limited. We aimed to describe the characteristics of adverse reactions to radiocontrast media among children who had a computed tomography scan or magnetic resonance imaging in a tertiary university hospital.
Source: Annals of Allergy, Asthma and Immunology - November 1, 2018 Category: Allergy & Immunology Authors: M. Kim, B. Lee, Y. Choi, D. Suh Tags: P003 Source Type: research

Resection of Inverted Papilloma of the Maxillary Sinus via a Prelacrimal Recess Approach: A Multicenter Retrospective Analysis of Surgical Efficacy.
Conclusions These multicenter follow-up results demonstrated that the PLRA is a safe and effective method for the excision of primary or recurrent IPMS with lower postoperative complications and recurrent rate. PMID: 30251558 [PubMed - as supplied by publisher]
Source: American Journal of Rhinology and Allergy - September 25, 2018 Category: ENT & OMF Authors: Zhou B, Huang Q, Sun J, Li X, Zhang W, Cui S, Shen PH, Wang C, Huang Z, Dong Y, Liang N Tags: Am J Rhinol Allergy Source Type: research

Allergic fungal rhinosinusitis
(AFRS) is a subset of chronic rhinosinusitis with nasal polyps (CRSwNP) characterized by antifungal IgE sensitivity, eosinophil-rich mucus (ie, allergic mucin), and characteristic computed tomographic and magnetic resonance imaging findings in paranasal sinuses. AFRS develops in immunocompetent patients, with occurrence influenced by climate, geography, and several identified host factors. Molecular pathways and immune responses driving AFRS are still being delineated, but prominent adaptive and more recently recognized innate type 2 immune responses are important, many similar to those established in patients with other forms of CRSwNP.
Source: Journal of Allergy and Clinical Immunology - August 1, 2018 Category: Allergy & Immunology Authors: Mark S. Dykewicz, Jonathan M. Rodrigues, Raymond G. Slavin Tags: Reviews and feature article Source Type: research

Evaluation of idiopathic olfactory loss with chemosensory event ‐related potentials and magnetic resonance imaging
International Forum of Allergy&Rhinology, EarlyView.
Source: International Forum of Allergy and Rhinology - May 21, 2018 Category: Allergy & Immunology Authors: Jia Liu, Jayant M. Pinto, Ling Yang, Linyin Yao, Xutao Miao, Yongxiang Wei Source Type: research

Diagnosis and endoscopic endonasal management of nontraumatic pseudoaneurysms of the cranial base
ConclusionSymptomatic cranial base pseudoaneurysms should undergo treatment to obliterate the aneurysm and relieve the mass effect. First, formal angiography is necessary for accurate diagnosis and treatment planning. Next, endovascular occlusion is performed, with a preference for coiling or endoluminal reconstruction with a flow diverter. Last, endoscopic intervention follows in cases where: (1) decompression of vital structures is indicated; (2) diagnosis of the pseudoaneurysm cannot be definitively confirmed with angiography; or (3) the etiology of the confirmed pseudoaneurysm requires further investigation.
Source: International Forum of Allergy and Rhinology - February 1, 2018 Category: Allergy & Immunology Authors: Daniel L. Faden, Marion A. Hughes, Philippe Lavigne, Brian T. Jankowitz, Eric W. Wang, Juan C. Fernandez ‐Miranda, Paul A. Gardner, Carl H. Snyderman Tags: ORIGINAL ARTICLE Source Type: research

Diagnosing upper extremity deep vein thrombosis with non-contrast-enhanced Magnetic Resonance Direct Thrombus Imaging: A pilot study
Diagnosing upper extremity deep vein thrombosis (UEDVT) can be challenging. Compression ultrasonography is often inconclusive because of overlying anatomic structures that hamper compressing veins. Contrast venography is invasive and has a risk of contrast allergy. Magnetic Resonance Direct Thrombus Imaging (MRDTI) and Three Dimensional Turbo Spin-echo Spectral Attenuated Inversion Recovery (3D TSE-SPAIR) are both non-contrast-enhanced Magnetic Resonance Imaging (MRI) sequences that can visualize a thrombus directly by the visualization of methemoglobin, which is formed in a fresh blood clot.
Source: Thrombosis Research - January 10, 2018 Category: Hematology Authors: C.E.A. Dronkers, F.A. Klok, G.R. van Haren, J. Gleditsch, E. Westerlund, M.V. Huisman, L.J.M. Kroft Tags: Full Length Article Source Type: research

Insight into the dynamic of gadolinium based contrast agent (GBCA) hypersensitivity: Acquisition, persistence and disappearance
Anaphylaxis against gadolinium based contrast agents (GBCAs) has been reported in all severity grades but is less frequent than hypersensitivity/allergy against iodinated contrast materials. Once a patient acquires such an adverse reaction a life-long premedication is usually the consequence in concert with GBCA-enhanced MR-imaging procedures. The usefulness of this prophylaxis has been questioned, and discussed controversially during the past. The herein presented case may shed some light into the dynamic of contrast-medium-induced hypersensitivity reactions.
Source: Magnetic Resonance Imaging - December 13, 2017 Category: Radiology Authors: Ingrid Boehm, Martin Hungerb ühler, Johannes T. Heverhagen Source Type: research

Ventilation defect percent in helium-3 magnetic resonance imaging as a biomarker of severe outcomes in asthma
Imaging tools are of increasing interest in assessing patients with asthma for receipt of personalized therapy. Hyperpolarized (HP) 3He magnetic resonance imaging (MRI) of the lungs is one example of a functional lung imaging method that provides reproducible regional detection of ventilation defects in asthma.1 These ventilation defects are associated with areas of airway obstruction and air trapping.2 The most common metric for measuring defect extent is the ventilation defect percent (VDP).2-4 Here, we measure VDP using HP 3He MRI and compare VDP to asthma outcomes indicative of severe exacerbation, analogous to similar...
Source: Journal of Allergy and Clinical Immunology - November 9, 2017 Category: Allergy & Immunology Authors: David G. Mummy, Stanley J. Kruger, Wei Zha, Ronald L. Sorkness, Nizar N. Jarjour, Mark L. Schiebler, Loren C. Denlinger, Michael D. Evans, Sean B. Fain Tags: Letter to the Editor Source Type: research

Assessing the clinical applicability of prior head imaging in patients with chronic rhinosinusitis
ConclusionPrior head imaging highly correlates to future maxillofacial CT in patients with chronic sinonasal complaints, and patients with prior negative scans are likely to remain negative on future imaging. If prior head scans exist, practitioners may want to avoid ordering additional scans in the absence of changing symptoms.
Source: International Forum of Allergy and Rhinology - November 1, 2017 Category: Allergy & Immunology Authors: Vidur Bhalla, Adam McCann, Kevin Sykes, Larry Hoover, D. David Beahm, Alexander Chiu Tags: ORIGINAL ARTICLE Source Type: research

The effect of olfactory training on the odor threshold in patients with traumatic anosmia.
CONCLUSION: Our results showed that olfactory training with PEA can improve PEA odor threshold levels in patients with traumatic anosmia. PMID: 28859708 [PubMed - in process]
Source: American Journal of Rhinology and Allergy - September 1, 2017 Category: ENT & OMF Authors: Jiang RS, Twu CW, Liang KL Tags: Am J Rhinol Allergy Source Type: research

Acute hypopituitarism associated with periorbital swelling and cardiac dysfunction in a patient with pituitary tumor apoplexy: a case report
ConclusionsCommon causes of periorbital edema include infections, inflammation, trauma, allergy, kidney or cardiac dysfunction, and endocrine disorders such as primary hypothyroidism. In the present case, the patient ’s acute central hypothyroidism was probably involved in the development of both periorbital edema and cardiac dysfunction. The present case highlights the need for physicians to consider periorbital edema as an unusual predominant manifestation of pituitary tumor apoplexy.
Source: Journal of Medical Case Reports - August 24, 2017 Category: General Medicine Source Type: research

MR Imaging of Mediastinal Masses
Abstract: The mediastinum contains vital vascular and nonvascular structures and organs, and a wide variety of abnormalities may arise from this region of the thorax. Although mediastinal masses may be initially detected on chest radiography, cross-sectional imaging plays an important role in the identification and evaluation of mediastinal lesions, enabling the formulation of focused differential diagnoses and ultimately guiding management. Computed tomography (CT) is considered the imaging modality of choice for evaluating most mediastinal masses; however, the role of magnetic resonance (MR) imaging continues to expand, ...
Source: Topics in Magnetic Resonance Imaging - August 1, 2017 Category: Radiology Tags: Review Articles Source Type: research