Qinglin Chang

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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. The study was approved by the institutional review board and signed informed consent was obtained.(More)
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. Magnetic resonance imaging including T1- and T2-weighted imaging and contrast-enhanced MR imaging was performed in 43 patients with(More)
OBJECTIVE To validate the hypothesis that fat tissue accumulation adjacent to the upper airway contributes to a predisposition to obstructive sleep apnea (OSA), irrespective of body mass index (BMI), as well as investigate the effect of the volume of fat tissue on pharyngeal mechanical loads. METHODS Fourteen subjects and 14 controls were enrolled in(More)
PURPOSE To evaluate the asymmetry of bilateral orbital development in Chinese children with congenital microphthalmia and to provide a criterion for tailoring treatment timing and therapy. DESIGN Retrospective cohort study. METHODS By combining multisection helical computerized tomography imaging with a computer-aided design system, we measured 38(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 An evaluation of orbital development in children from birth to 6 years of age was conducted in order to provide normal reference values for clinical use. METHODS Retrospective cohort study. By combining multi-section helical computerized tomography (CT) imaging with a computer-aided design system (BrainLAB, Munich, Germany; iPlan Cranial(More)
BACKGROUND Assessment of the growth of bony orbit in children with blind microphthalmia is essential to its management. In this study, variables were measured to evaluate the development of the bony microphthalmic orbits after treatment with self-inflating hydrogel expanders. METHODS This is a retrospective study with an interventional case series.(More)
PURPOSE To describe the clinical features, radiological findings, and surgical treatment of patients with congenital unilateral restrictive hypotropia and esotropia. METHODS Retrospective analysis of patients presenting with unilateral restrictive hypotropia and esotropia. In all patients, magnetic resonance imaging (MRI) or computed tomography (CT) of(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)