[PDF] Top 20 MR of the normal and abnormal internal auditory canal
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MR of the normal and abnormal internal auditory canal
... The myelinated intracanalicular portion of the acoustic and facial nerves are seen best on the T1-weighted images; however, the appearance of the nerves varies with the plane of section [r] ... See full document
5
The normal and abnormal genu of the corpus callosum: an evolutionary, embryologic, anatomic, and MR analysis
... weighted MR images of 1800 patients with a normal cor- pus callosum were analyzed using the MAC line to estab- lish the position of the normal genu of the corpus ... See full document
11
MR assessment of the normal position of the spinal cord in the spinal canal
... The following variables were measured from all axial images in the supine position: anteroposterior size of the spinal cord SCap, transverse size of the spinal cord SCtr, anteroposterior[r] ... See full document
9
MR of hypoxic encephalopathy in children after near drowning: correlation with quantitative proton MR spectroscopy and clinical outcome
... cerebral MR imaging and quantita- tive proton MR spectroscopic studies were performed in the 22 children on a ...1.5-T MR imager. All the children had initial MR studies performed 1 to 6 days ... See full document
11
Diagnostic Accuracy of Screening MR Imaging Using Unenhanced Axial CISS and Coronal T2WI for Detection of Small Internal Auditory Canal Lesions
... IAC MR im- ...IAC MR imaging protocol, which is due to a lack of gadolinium contrast, reduced scan time, and reduced professional ...were normal, 20 were performed to follow already diagnosed IAC or ... See full document
5
Isolated Internal Auditory Canal Diverticula: A Normal Anatomic Variant Not Associated with Sensorineural Hearing Loss
... Continuous features were summarized with means and SDs when approxi- mately normally distributed and with medians and interquartile ranges (IQRs) otherwise; categoric features were sum- marized with frequency counts and ... See full document
5
The relationship between the dimensions of the internal auditory canal and the anomalies of the vestibulocochlear nerve
... showing normal facial (F) and vestibulocochlear (VC) nerves on the right side; B, ...showing normal facial (F) nerve anterior to the main trunk of the vestibulococh- lear (VC) nerve; ...the internal ... See full document
8
MR findings in adult onset adrenoleukodystrophy
... of MR findings of the brain and spinal cord in adult ALD is important because they mimic other disease process such as dementia, schizophrenia, olivopontocerebel- lar atrophy, multiple sclerosis, and amyotrophic ... See full document
11
MR Imaging of Cerebellopontine Angle and Internal Auditory Canal Lesions at 1 5 T
... A and B, T1-weighted coronal A and axial B images show small internal auditory canal tumor large sfraight arrows, slightly hypointense relative to normal pons P, displacing lower-signal [r] ... See full document
11
The evolving MR appearance of structures in the internal auditory canal after removal of an acoustic neuroma
... with normal signal from the labyrinth, preceded and fol- lowed by studies showing hyperintense ...of normal signal where faintly hyperintense signal is ... See full document
11
Absent Semicircular Canals in CHARGE Syndrome: Radiologic Spectrum of Findings
... as normal if patent, visible on an MR when available, or trapped if there was a bony bar over the ...ab- normal morphology or ...chain. Abnormal facial nerve canal segment positions ... See full document
9
Prevalence of Internal Auditory Canal Diverticulum and Its Association with Hearing Loss and Otosclerosis
... location of the fissula ante fenestram. In this situation, the diver- ticula could potentially represent advanced spongiotic bone im- mediately adjacent to IAC CSF. Hounsfield unit values were not measured to evaluate ... See full document
5
High Resolution CT Findings in Children with a Normal Pinna or Grade I Microtia and Unilateral Mild Stenosis of the External Auditory Canal
... side in 5 ears, and the middle ear was nor- mal in size in 4 ears. There were no pa- tients with severe hypoplasia of the mid- dle ear cavity, and all ears were normally aerated without soft tissue present. A nar- rowed ... See full document
5
Assessment of Internal Auditory Canal Tumors: A Comparison of Contrast Enhanced T1 Weighted and Steady State T2 Weighted Gradient Echo MR Imaging
... The purpose of this study was to compare the prototype SIMCAST sequence with routine con- trast-enhanced T1-weighted 3D spoiled gradient- echo (SPGR) imaging for the evaluation of tumors of the internal ... See full document
7
Topographical relationship of the facial and vestibulocochlear nerves in the subarachnoid space and internal auditory canal
... external auditory meatus) was used to establish the axial plane relative to a sagittal scout ...T1-weighted MR imaging after intravenous administration of ... See full document
7
T2 weighted MR characteristics of internal auditory canal masses
... the MR images, and that the uninvolved IAC served as the control for each ...T2-weighted MR images; the more specific objective was to establish the relative signal characteristics of IAC masses with ... See full document
8
Original Article Functional magnetic resonance imaging evidence in patients with sudden sensorineural hearing loss
... the auditory threshold can not be detected with the ABR test and the possibil- ity of acoustic neuroma, inner ear hemorrhage, cerebellar infarction and malformation of the cochlea and vestibule have not been ... See full document
9
Optimizing MR imaging for detecting small tumors in the cerebellopontine angle and internal auditory canal
... The relative resolving power in patients exceeded theoretical calculations because of greater than expected image contrast caused by low CSF signal intensity secondary to CSF pulsation..[r] ... See full document
8
Visualization of Human Inner Ear Anatomy with High Resolution MR Imaging at 7T: Initial Clinical Assessment
... the internal auditory canal, smaller nerve branches such as the superior ampullary nerve and the intermediate nerve were, in general, better depicted at ...The internal auditory ... See full document
6
Dumbbell Schwannomas of the Internal Auditory Canal
... nerve canal, as these features will affect surgical approach, complications, and prog- nostic ...contrast-enhanced MR imaging of the IAC supplemented by high-resolution FSE T2-weighted imaging can help ... See full document
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