2025年1月24日 · The trigeminal nerve is the fifth (CN V) cranial nerve and its primary role is relaying sensory information from the face and head, although it does provide motor control to the muscles of mastication via the mandibular division (TA: nervus trigeminus or nervus cranialis V).

It can detect potential compressions of the trigeminal nerve by nearby blood vessels, tumors, or structural abnormalities. MRI can provide detailed images of the nerve, aiding in treatment planning and determining the most appropriate management options, including medication or surgical interventions.

2024年8月18日 · Imaging the cranial nerves as they pass from the brain to their respective foramina is best achieved with high-resolution high-T2-contrast sequences that can, ideally, be reformatted in other planes (e.g. various implementations of steady-state sequences: steady-state free procession (SSFP), fast imaging employing steady-state acquisition (FIEST...

MR imaging shows bifocal CN V (white arrows) compression by the Dandy vein (white short arrows) and by a transverse pontine vein (black arrows), respectively. Teflon (Dupont, Wilmington, Delaware) (asterisk, F) was interposed between CN V …

2020年2月15日 · Trigeminal neuralgia (V) secondary to NVC is suspected when neural deformation by vascular contact is located approximately 4 mm from the apparent CN V origin from the brainstem, hemifacial spasm (VII) at 2 mm, vestibular paroxysmia (VIII) at 10 mm, and glossopharyngeal neuralgia at <2 mm .

High-resolution MRI affords exquisite anatomic detail and allows radiologists to scrutinize the entire course of the trigeminal nerve (cranial nerve [CN] V). This article focuses first on the normal MRI appearance of the course of CN V and how best to image each segment.

Cranial nerve enhancement is a common and challenging MRI finding that requires a meticulous and systematic evaluation to identify the correct diagnosis.

2012年2月19日 · Hypoglossal Nerve (CN XII or 12) The hypoglossal nerve innervates certain muscles that control movement of the tongue. From the hypoglossal nucleus in the medulla oblongata, general somatic efferent fibres exit the cranial cavity through the hypoglossal canal and enter the neck in close proximity to the accessory and vagus nerves and the ...

2024年2月11日 · Vulnerable locations are the frontal sinus (for CN V 1), ethmoid and sphenoid sinus (CN II, III, IV, V 1, V 2, VI in the orbital apex and superior orbital fissure), and temporal bone (CN VII). MRI can visualize the thickened and enhancing cranial nerves while both CT and MRI can demonstrate late-stage infection surrounding and eventually ...

2025年1月18日 · Diagnosing issues related to CN V involves a thorough medical history and physical examination. Doctors may use imaging studies such as MRI to rule out other conditions like tumors or multiple sclerosis that could affect the trigeminal nerve.