Qinglin Chang

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PURPOSE To prospectively evaluate magnetic resonance (MR) imaging including dynamic contrast-enhanced MR imaging in the differentiation of benign from malignant orbital masses and to evaluate which MR imaging features are most predictive of malignant tumors. MATERIALS AND METHODS The study was approved by the institutional review board and signed informed(More)
In this paper, based on Lyapunov method, a backstepping adaptive fuzzy control scheme is presented for the two-link robot manipulator system. The control strategy consists of the traditional backstepping control and adaptive fuzzy control to cope with the model unknown and parameter disturbances.The simulation is presented to verify the effectiveness of the(More)
PURPOSE To identify the causative mutation with its possible origin in a Chinese family with congenital fibrosis of extraocular muscles type 1 (CFEOM1) and to characterize the ocular phenotypes and lesions in the corresponding intracranial nerves. METHODS Three affected siblings and their asymptomatic parents underwent comprehensive ophthalmic(More)
OBJECTIVE It is important to distinguish between orbital cavernous haemangioma and schwannoma because the treatments of choice for the two tumours are different. The aim was to evaluate MR imaging findings distinguishing the two tumours. METHODS Magnetic resonance imaging including T1- and T2-weighted imaging and contrast-enhanced MR imaging was performed(More)
PURPOSE To study the characteristics of orbital cyst associated with microphthalmos in a group of Chinese patients, and to analyze the relationship between orbital cyst and orbital volume. DESIGN Cross-sectional comparative study. PARTICIPANTS 120 patients who were diagnosed as unilateral clinical blind microphthalmos, in which 20 patients had orbital(More)
Longitudinal studies have shown that brain white matter lesions are strong predictors of the conversion of unilateral optic neuritis to multiple sclerosis (MS) in Caucasian populations. Consequently brain MRI criteria have been developed to improve the prediction of the development of clinically definite multiple sclerosis (CDMS). In Asian populations,(More)
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