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Biomedical subjects

I Dehaene

Publications and source records attributed to I Dehaene.

54 records · Page 3Linked to original sources
PubMed1975

Megadolichobasilar anomaly, basilar impression and occipito-vertebral anastomosis.

The authors describe a case of a megadolichobasilar anomaly associated with basilar impression, bilateral megadolichocarotid arteries and an occipito-vertebral anastomosis. The concurrence of these anomalies lends support to the hypothesis that congenital factors play a part in the origin of the megadolichobasilar anomaly.

Arteries↗
PubMedDate not supplied

Isolated bilateral oculomotor paralysis due to a ruptured aneurysm.

A patient presented with sudden headache and isolated bilateral third nerve palsy. Neuroradiologic examination disclosed a giant aneurysm of the right internal carotid artery. At postmortem examination, the aneurysm compressed and stretched both oculomotor nerves.

Aged↗
PubMedDate not supplied

[The locked-in syndrome. Clinical study of 10 cases].

Ten cases of locked-in syndrome of syndrome of ischaemic nature are described. Seven of them are conform to the original description. In the other three, the oculomor disturbances are less severe. The clinical spectrum of this syndrome is discussed, special attention being paid to the gaze palsies.

Aged↗
PubMedDate not supplied

[Grumose alteration of the cerebellar dentate nucleus in two cases of progressive supranuclear palsy (author's transl)].

The purpose of this paper is to illustrate an interesting lesion of the cerebellar dendate nucleus: the grumose alteration which is demonstrated by silver impregnation techniques in two cases of progressive supranuclear palsy. The grumose alteration is nearly exclusively found in the parvocellular part of the dentate nucleus; it is characterized by a clustering of granules and ring-shaped bodies against neuronal perikarya and dentrites; it corresponds very likely to reactive presynaptic endings of Purkinje cells' axons. Similar lesions can be discovered in various neurodegenerative disorders. The morphologic features of the grumose alteration are reviewed.

Aged↗
PubMedDate not supplied

Constructive interference in steady state-3DFT MR imaging of the inner ear and cerebellopontine angle.

PURPOSE: To assess the value of a three-dimensional Fourier transformation MR technique "CISS" (constructive interference in steady state) in imaging the inner ear. SUBJECTS: We studied 50 normal inner ears (40 axial, 10 coronal) and 10 pathologic inner ears in 60 patients. RESULTS: The cochlea, semicircular canals, and vestibulum were visualized in detail. Cranial nerve VII and the cochlear, superior vestibular, and inferior vestibular branch of cranial nerve VIII were identified in 90%, 94%, 80%, and 88% of the cases, respectively. A vascular loop was recognized inside the internal auditory canal in 6%, and in the porus in 30%, of the cases. The high signal of the cerebrospinal fluid and labyrinthine fluids (perilymph and endolymph) on the CISS images made excellent delineation of tumors in the cerebellopontine angle and internal canal possible and allowed detection of tumoral labyrinth involvement. The thin sections, high resolution of the images, and capability of producing multiplanar and three-dimensional reconstructions often offered additional information. CONCLUSIONS: The CISS sequence allows detailed study of the normal and pathologic inner ear and promises to be highly valuable in the demonstration of the vascular loop.

Adolescent↗