There is little documented information about the Radiation protection and monitoring in Radiology departments in Nigeria [1,2] only about 25% of radiation workers in Nigeria are monitored as at 1999 [3] the high cost of xray and C.T. units have greatly increased the use of refurbished X-Ray equipment . These units produce higher percentage variance between set exposure factors and actual output...

Epileptic nystagmus (EN) is a rare form of nystagmus that occurs only during epileptic seizures. We report an infantile case in which EN was first noted at 10 days of age. Electronystagmography showed a right-beating nystagmus with predominantly linear slow phases that traversed the midline. Neuro-imaging revealed dysplasia of the left middle temporal gyrus extending posteriorly into the pariet...

Thirty patients with clinically uncomplicated optic neuritis were subjected to a battery of electrophysiological tests, including visual evoked response (VER), auditory brainstem evoked response (ABER) and somatosensory evoked response (SSER). Blink reflex, electronystagmography (ENG), and computed tomography examinations were also carried out on all patients. These non-invasive tests indicated...

Audiometric, electrophysiologic, and radiographic findings for a 68-year-old male with an "imbalance" concern are presented. This paper has a two-fold purpose: (1) to present an unusual electronystagmography case study and (2) to highlight the importance of test conditions in lesion localization. The specific disease pathophysiology remains obscure. Repeated hearing tests documented a known hea...

Vertigo and tinnitus are very frequent complaints. Often, we find multisensory syndromes combined with tinnitus, hearing impairment, vertigo, and nausea. From more than 10,000 cases, we evaluated 757 randomly selected neurootological patients suffering from endogenous tinnitus. First, we classified the 10,000 patients into those suffering from the basic tetrad of tinnitus forms: bruits, endogen...

Nonlinear identification using a novel neural network paradigm, namely enggenes, is investigated. A set of MATLAB functions for the training and simulation of eng-genes based neural models are described. These functions are then used to investigate the effectiveness of the technique applied to two nonlinear dynamical systems. Experimental data from a pH neutralisation plant and simulation data ...

OBJECTIVES To compare the usefulness of a CCD camera with infrared illumination (IR-CCD camera) over Frenzel glasses (F Glasses) for the observation of spontaneous nystagmus, the incidence and direction of nystagmus, and the frequency, amplitude and slow phase of spontaneous nystagmus. METHODS One hundred vertiginous patients, fifty-three females and forty-seven males participated in this stu...

Singapore can be proud of its many achievements in the last few decades. Amongst these is the very high standard of healthcare enjoyed by its population.1 In fact, its reputation for medical excellence has attracted many international patients and the numbers are growing. This achievement can be attributed to the hard work, dedication and commitment of those who developed healthcare delivery an...

Onchocerciasis, or River Blindness as it is commonly called, has been found to be endemic in the Imo River basin of Imo and Abia States, all in the Southeastern part of Nigeria [1,2]. Auchinumo is a community of 16 villages situated along the Imo River basin in the Ihitte-Uboma Local Government Area of Imo State. The people live in somewhat isolated settlements and are predominantly farmers. Am...