Preoperative Evaluation of Neurovascular Compression in Patients with Trigeminal Neuralgia by Use of Three-dimensional Reconstruction from Two Types of High-resolution Magnetic Resonance Imaging

Akimoto, Hideaki; Nagaoka, Tsukasa; Nariai, Tadashi; Takada, Yoshiaki; Ohno, Kikuo; Yoshino, Norio

doi:10.1097/00006123-200210000-00020

Cited by 34 publications

(33 citation statements)

References 17 publications

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“…This technique enables us to identify vascular loops that are located in close proximity of a cranial nerve from vascular loops that make contact with a cranial nerve [13,14]. Although our study population was rather small, an opposite distribution of the low and high frequencies along the cisternal segment of the VIIIth cranial nerve, especially at the central part, was found in patients with nonpulsatile tinnitus.…”

Section: Discussionmentioning

confidence: 96%

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Does the location of a vascular loop in the cerebellopontine angle explain pulsatile and non-pulsatile tinnitus?

et al. 2004

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The purpose was to investigate patients with unexplained pulsatile and non-pulsatile tinnitus by means of MR imaging of the cerebellopontine angle (CPA) and to correlate the clinical subtype of tinnitus with the location of a blood vessel (in the internal auditory canal or at the cisternal part of the VIIIth cranial nerve). Clinical presentation of tinnitus and perceptive hearing loss were correlated. In 47 patients with unexplained tinnitus, an MR examination of the CPA was performed. Virtual endoscopy reconstructions were obtained using a 3D axial thin-section high-resolution heavily T2-weighted gradient echo constructive interference in steady state (CISS) data-set. High-resolution T2-weighted CISS images showed a significantly higher number of vascular loops in the internal auditory canal in patients with arterial pulsatile tinnitus compared to patients with non-pulsatile tinnitus (P<0.00001). Virtual endoscopy images were used to investigate vascular contacts at the cisternal part of the VIIIth cranial nerve in patients with low pitch and high pitch non-pulsatile tinnitus. A significantly different distribution of the vascular contacts (P=0.0320) was found. Furthermore, a correlation between the clinical presentation of non-pulsatile tinnitus (high pitch and low pitch) and the perceptive hearing loss was found (P=0.0235). High-resolution heavily T2-weighted CISS images and virtual endoscopy of the CPA can be used to evaluate whether a vascular contact is present in the internal auditory canal or at the cisternal part of the VIIIth cranial nerve and whether the location of the vascular contact correlates with the clinical subtype of tinnitus. Our findings suggest that there is a tonotopical structure of the cisternal part of the VIIIth cranial nerve. A correlation between the clinical presentation of tinnitus and hearing loss was found.

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Section: Discussionmentioning

confidence: 96%

“…Virtual MR endoscopy provides 3D information concerning the spatial relationship between nerves and vessels that is far superior to the information provided by 2D images [13,14] (Figs. 1, 2, 3).…”

Section: Mr Examinationmentioning

confidence: 99%

Does the location of a vascular loop in the cerebellopontine angle explain pulsatile and non-pulsatile tinnitus?

et al. 2004

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“…The addition of gadolinium is useful to evaluate for demyelinating plaques and leptomeningeal disease. Further imaging techniques such as three-dimensional fast imaging employing steady-state acquisition (3-D-FIESTA) and constructive interference in steady state (CISS) magnetic resonance imaging, diffusion tensor imaging (DTI), fast inflow with steady-state procession (FISP), and constructive interference in steady state (CISS) have been used to identify neurovascular compression and evaluation of the trigeminal nerve root anatomy for pre-surgical planning [56][57][58][59].…”

Section: Painful Cranial Neuropathies and Other Facial Pains Trigeminmentioning

confidence: 99%

Neuroimaging in Secondary Headache Disorders

Chaudhry

Friedman

2015

Curr Pain Headache Rep

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A secondary headache may develop de novo or in patients with a history of primary headaches, and a thorough history and neurological exam often helps to suspect a secondary etiology. The causes of secondary headaches include tumors, vascular etiologies, structural brain disorders, infection, inflammation, and alterations of cerebrospinal fluid pressure dynamics. Computed tomography (CT) is very sensitive for detecting acute hemorrhage but magnetic resonance imaging (MRI) is preferred over a head CT in subacute and non-emergent cases. Obtaining the correct diagnosis may include incorporation of intravenous contrast agents, special imaging sequences, and functional imaging techniques.

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“…There are advantages and limitations to each of these investigations. Neuroradiological imaging may be indicated in patients with suspected central neuropathic pain and the use of structural magnetic resonance imaging is known to have value in the diagnosis of sciatica and trigeminal neuralgia (Akimoto, 2002). The approach to the management of neuropathic pain should focus on functional rehabilitation and aim to optimise quality of life in addition to pain relief.…”

Section: Investigationsmentioning

confidence: 99%

Neuropathic pain

Monkhouse

Ali

2013

InnovAiT: Education and inspiration for general practice

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The capacity to experience pain is valuable for survival; however, the development of neuropathic pain is maladaptive and may be the result of a variety of underlying clinical diagnoses. Neuropathic pain has a significant impact on the patient's quality of life, function and psychological well-being and creates a personal and societal financial burden. It is an important issue within primary care that is often underdiagnosed and undertreated. It is essential to have a systematic approach to the assessment of these patients with neuropathic pain within primary care. The patient and clinician should develop an individual management strategy involving behavioural and psychological support, functional rehabilitation and pharmacological therapy with the aim of optimising quality of life. This article aims to summarise the background to neuropathic pain, the common presentations within primary care and the current treatment options available.

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Preoperative Evaluation of Neurovascular Compression in Patients with Trigeminal Neuralgia by Use of Three-dimensional Reconstruction from Two Types of High-resolution Magnetic Resonance Imaging

Abstract: 3-D reconstructions from two types of high-resolution magnetic resonance images (3-D-CISS and 3-D-FISP) are very useful for creating preoperative simulations and in deciding whether to perform surgery in patients with trigeminal neuralgia.

Cited by 34 publications

References 17 publications

Does the location of a vascular loop in the cerebellopontine angle explain pulsatile and non-pulsatile tinnitus?

Does the location of a vascular loop in the cerebellopontine angle explain pulsatile and non-pulsatile tinnitus?

Neuroimaging in Secondary Headache Disorders

Neuropathic pain

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