Diagnosis of Small Acoustic Tumors by Air CT Cisternography
نویسندگان
چکیده
منابع مشابه
Air-CT cisternography and canalography for small acoustic neuromas.
Disenchantment with the limitations, and in some cases the morbidity, of currently used radiologic techniques for the demonstration or exclusion of small acoustic neuromas prompted development of an examination using small amounts of intrathecal air and computed tomography (CT). A prospective study was designed to evaluate air CT cisternography/canalography, wherein patients with the clinical s...
متن کاملSmall acoustic neuromas: detection by high resolution gas CT cisternography.
Experience with 81 gas computed tomography (CT) cisternography procedures in 79 patients in searching for acoustic neuroma is reported. Twenty-one tumors, four exclusively intracanalicular, were demonstrated after standard contrast-enhanced CT was negative. Fifty-five examinations were negative; four were inconclusive. The high resolution scanner with digital localization and reconstruction zoo...
متن کاملArachnoiditis simulating acoustic neuroma on air-CT cisternography.
Routine thin-sect ion CT after contrast enhancement may fail to demonstrate smal l acoustic neuromas, usually those smaller than 10 mm [1, 2]. Metrizamide CT cisternography has demonstrated such small acoustic neuromas, but cannot demonstrate an intracanalicular tumor accurately [3]. Pantopaque c isternography can demonstrate an intracanalicular mass, but has a high percentage of inconclusive e...
متن کاملBilateral cerebellopontine angle air-CT cisternography.
Recently , new methods in the workup of cerebellopontine angle (CPA) tumors have been established . These include computed tomography (CT) in combination with intravenous injection of contrast material [1], enhancement of cerebrospinal fluid with metrizamide [2], and most recently air-CT cisternography [3 , 4]. We describe a simple technique for examining both cerebellopontine angles with one l...
متن کاملAir CT cisternography of anterior inferior cerebellar artery loop simulating an intracanalicular acoustic neuroma.
Acoustic neuromas larger than 1 cm are usually apparent on routine computed tomography (CT) after contrast enhancement, but smaller lesions escape detection [1, 2]. Metrizamide CT cisternography can demonstrate small lesions, but it is not accurate for the detection of intracanalicular lesions [1, 3]. Pantopaque meatocisternography can detect intracanalicular lesions but has a high percentage o...
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ژورنال
عنوان ژورنال: Neurologia medico-chirurgica
سال: 1983
ISSN: 0470-8105,1349-8029
DOI: 10.2176/nmc.23.441