Biomedical subjects
Publications and source records attributed to F Mirosa.
Recent applications of magnetic resonance in the ear pathology are described. Attention is drawn to the new magnetic resonance sequences in two and three dimensions and their contribution to the understanding of anatomy and pathology of the inner ear, especially the membranous labyrinth.
PURPOSE: To describe the steady-state free-precession MR sequence and its application to the study of the inner ear. METHOD: The inner ear was imaged with CT and a 0.5-T MR unit in three dimension, to evaluate the various signals from the lumen of the labyrinth. RESULTS: Normally, the signal from the perilymphatic and endolymphatic spaces is homogeneous. However, among our cases of neurosensory deafness, differences of signal and morphology were seen in patients with otosclerosis, ossifying labyrinthitis, and inner ear malformations. CONCLUSION: Three-dimensional MR, used together with routine two-dimensional fast spin-echo, is another diagnostic too]l that can provide new data in the evaluation of the normal and unhealthy inner ear.
The authors report a case of post-traumatic priapism due to laceration of the left cavernous artery. Blood gases on blood aspirated from the corpora cavernosa revealed the presence of "high-flow" priapism. Transfemoral arteriography confirmed the arteriocavernous fistula which was successfully treated by selective embolisation of the internal pudendal artery. The authors present a review of the literature on this subject with special reference to the diagnostic and therapeutic aspects.
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The Tolosa-Hunt Syndrome consists of intermittent painful ophthalmoplegia resulting from a non-specific inflammatory process in the cavernous sinus and superior orbital fissure, which responds to steroid therapy. We report two additional cases to the literature of the Tolosa-Hunt Syndrome and we are interested in pointing out the importance of orbital venography in the diagnosis of this syndrome. Orbital venography demonstrates the partial occupation of the cavernous sinus and the lack of visualization of the 3rd segment of the superior ophthalmic vein.
We present a case of Moya-Moya syndrome in a 28-year-old female patient with an unusual debut in the form of mirror-image writing. The patient was studied by CAT, conventional cerebral angiography, MRI and angio-MRI. The results obtained show a very good correlation between the images of conventional angiography and those obtained by angio-MRI. Angio-MRI requires no contrast, is noninvasive and rapid, promising to be a first class alternative in the diagnosis and follow-up of Moya-Moya syndrome.
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The authors studied 60 patients with occlusions of the middle cerebral artery, of which 30 were partial occlusions and 30 complete. They discuss the etiology, age and sex distribution, clinical findings, the localization of the lesion, and the anastomotic collateral circulation that develops.