Retrospective comparison of three-dimensional imaging sequences in the visualization of posterior fossa cranial nerves

Publication date: December 2017 Source:European Journal of Radiology, Volume 97 Author(s): Suna Ors, Ercan Inci, Rustu Turkay, Atilla Kokurcan, Elif Hocaoglu Purpose To compare efficancy of three-dimentional SPACE (sampling perfection with application-optimized contrasts using different flip-angle evolutions) and CISS (constructive interference in steady state) sequences in the imaging of the cisternal segments of cranial nerves V–XII. Methods Temporal MRI scans from 50 patients (F:M ratio, 27:23; mean age, 44.5±15.9 years) admitted to our hospital with vertigo, tinnitus, and hearing loss were retrospectively analyzed. All patients had both CISS and SPACE sequences. Quantitative analysis of SPACE and CISS sequences was performed by measuring the ventricle-to-parenchyma contrast-to-noise ratio (CNR). Qualitative analysis of differences in visualization capability, image quality, and severity of artifacts was also conducted. A score ranging ‘no artefact’ to ‘severe artefacts and unreadable’ was used for the assessment of artifacts and from ‘not visualized’ to ‘completely visualized’ for the assesment of image quality, respectively. The distribution of variables was controlled by the Kolmogorov–Smirnov test. Samples t-test and McNemar’s test were used to determine statistical significance. Results Rates of visualization of posterior fossa cranial nerves in cases of complete visualization were as follows: n...
Source: European Journal of Radiology - Category: Radiology Source Type: research

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MR imaging of endolymphatic hydrops in Ménière's disease: not all that glitters is gold. Acta Otorhinolaryngol Ital. 2018 Aug;38(4):369-376 Authors: Conte G, Lo Russo FM, Calloni SF, Sina C, Barozzi S, Di Berardino F, Scola E, Palumbo G, Zanetti D, Triulzi FM Abstract Ménière's disease (MD) is a chronic condition characterised by fluctuating hearing loss, intermittent vertigo, tinnitus and aural fullness. Its anatomical and pathological counterpart is represented by endolymphatic hydrops (EH). Recent development and progress in magnetic resonance (MR) imaging techniques has ...
Source: Acta Otorhinolaryngologica Italica - Category: ENT & OMF Tags: Acta Otorhinolaryngol Ital Source Type: research
We report about a patient, who in 2005, as a 37-year-old, experienced a sudden, mild to moderate, mid-frequency sensorineural hearing loss in the right ear, along with tinnitus and mild dizziness. MRI of the temporal bone revealed a very small (1 mm) enhancing lesion in the second turn of the right cochlea after injection of contrast medium. Hearing gradually deteriorated, with complete hearing loss in 2015. At this time, an MRI scan showed a lesion completely filling the cochlea.The tumor was removed through a subtotal cochleoectomy. The cochlea was partially reconstructed with cartila...
Source: HNO - Category: ENT & OMF Tags: HNO Source Type: research
We report about a patient who in 2005, aged 37 years, experienced sudden mild to moderate, mid-frequency sensorineural hearing loss in the right ear along with tinnitus and mild dizziness. MRI of the temporal bone revealed a very small (1 mm) contrast-enhancing lesion in the second turn of the right cochlea. Hearing gradually deteriorated with complete hearing loss in 2015. At this time, an MRI scan showed a lesion completely filling the cochlea.The tumor was removed via transmeatal subtotal cochleostomy. The cochlea was partially reconstructed with cartilage and fascia. A cochlea implant dummy electrode was in...
Source: HNO - Category: ENT & OMF Tags: HNO Source Type: research
​I recently treated a patient with hemiplegic migraines successfully with bupivacaine cervical injections, a novel therapeutic technique using paraspinous cervical injections. The technique employs deep intramuscular injections of 1.5 mL of 0.5% bupivacaine bilaterally into the paraspinous muscles of the lower neck. (Read more in my October 2012 blog and see it demonstrated in a video at http://bit.ly/2ewC5n1.)This headache and orofacial pain treatment was first described in 1996 by my twin brother, Gary Mellick, DO, a neurologist who did a pain fellowship. The exact mechanism is unknown, but the treatment appears to wor...
Source: M2E Too! Mellick's Multimedia EduBlog - Category: Emergency Medicine Tags: Blog Posts Source Type: blogs
Authors: Sayit AT, Gunbey HP, Fethallah B, Gunbey E, Karabulut E Abstract OBJECTIVE: To inform on the incidence of high jugular bulb and dehiscent high jugular bulb, and the symptoms related to these vascular anomalies. METHODS: A retrospective analysis was performed of temporal bone computed tomography scans of 3285 patients who attended our clinic with various symptoms. The medical records of patients with high jugular bulb and dehiscent high jugular bulb were analysed, and the clinical findings reviewed. Patients with dehiscent high jugular bulb were evaluated for hearing loss with pure tone audiometry. ...
Source: Journal of Laryngology and Otology - Category: ENT & OMF Tags: J Laryngol Otol Source Type: research
Today, 1989 may be most associated with Taylor Swift: It is the album that won her a second Grammy for Album of the Year. Not only that, it happens to be the year Swift was born--such a long, long time ago! People under 35 have no personal memory of 1980s pop culture, which is ironic since Swift's album in part pays homage to it. In the real 1989 (no offense to Swift and the 10 co-producers who made the album), all sorts of revolutions took place: Mr. Gorbachev tore down that pesky wall, for example. America's greatest antagonist, the Soviet Union, collapsed in 1989. Brazil conducted its first democrat...
Source: Healthy Living - The Huffington Post - Category: Consumer Health News Source Type: news
CONCLUSIONS: Our findings suggest that acupuncture needles inserted at BL23 come into close proximity with the intermediate or lateral branch of the L2 PRSN, which could result in stimulation of both the somatic and sympathetic nervous systems. PMID: 26508662 [PubMed - as supplied by publisher]
Source: Acupuncture in Medicine : journal of the British Medical Acupuncture Society - Category: Complementary Medicine Authors: Tags: Acupunct Med Source Type: research
CONCLUSIONS Cavernous hemangioma of the IAC can be diagnosed preoperatively through analysis of clinical features and neuroimaging. Early surgical intervention may preserve the functional integrity of the facial nerve and provide a better outcome after nerve reconstruction. However, preservation of functional hearing may not be achieved, even with the retrosigmoid or middle cranial fossa approaches. The translabyrinthine approach seems to be the most appropriate approach overall, as the facial nerve can be easily located and reconstructed. PMID: 26406793 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery - Category: Neurosurgery Authors: Tags: J Neurosurg Source Type: research
Publication date: July 2015 Source:Scandinavian Journal of Pain, Volume 8 Author(s): Wenche Iglebekk , Carsten Tjell , Peter Borenstein Background and aim Chronic musculoskeletal pain, e.g. whiplash associated disorders (WAD), fibromyalgia and myalgia, causes significant burden on both the individual and on society as a whole. In a previous study, the authors concluded that there is a likely connection between chronic benign paroxysmal positional vertigo (BPPV)/canalithiasis and headache, neck pain, generalized pain, fatigue, cognitive dysfunctions as well as tinnitus. The balance dysfunction in BPPV/canalithiasis is dyn...
Source: Scandinavian Journal of Pain - Category: Anesthesiology Source Type: research
Conclusions Differential diagnosis of an enhancing lesion in the IAC includes acoustic neuroma, meningioma, epidermoid and arachnoid cysts, lipochoristoma, and metastatic tumors. Fat-suppressed MRI sequences aid in a definitive diagnosis of lipochoristomas. Because lipochoristomas may have a tendency for more indolent growth and intimate involvement of the auditory nerve, conservative management with interval imaging is recommended. Surgical treatment is reserved for growing lesions or those with disabling vestibular symptoms.[...]Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals:Table of c...
Source: Journal of Neurological Surgery Reports - Category: Neurosurgery Authors: Tags: Original Article Source Type: research
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