![]() ![]() b Left sagittal images depicting the coronal plane (red line) orthogonal to the anterior-posterior commissural (AC-PC) plane (blue line), and right coronal images demonstrating the CA subtended against the roof of the lateral ventricles. a Axial FLAIR images demonstrating EI as a ratio of the maximal width of the frontal horns of the lateral ventricles (short blue line) against the maximal internal diameter of the cranium (long blue line) on the same section. Significant (p 0.98 and is sensitive to morphological ventricular changes in NPH patients after ventricular shunting.ĭiagnosis, differential Hydrocephalus, normal pressure Magnetic resonance imaging Neurodegenerative diseases ROC curve.Įvans’ index (EI), callosal angle (CA), and splenial angle (SA)measured on brain MRI in healthy controls (HC), Parkinson’s disease (PD), Alzheimer’s disease (AD), and normal pressure hydrocephalus (NPH) patients. Pairwise comparison showed that SA was statistically different between NPH and AD/PD/HC subjects (p 0.98, and was the only measure left in the final model of the multivariable analysis. Due to the less invasive nature of these procedures, patients benefit from a reduction in procedural risk, a decrease in post-procedural pain and a shortened recovery time compared to. 847.618.3249 o discharge summary o pathology report(s) o emergency record(s) o history and physical o abstract o social history o radiology report(s) o itemized billing statement o. Interventional radiology is a medical specialty that provides minimally invasive, image-guided procedures in order to diagnose and treat a variety of conditions. ![]() Inter-rater and intra-rater reliability were excellent for all measurements (intraclass correlation coefficients > 0.9). Serving chicago’s northwest suburbs since 1959, northwest community hospital (nch) is dedicated to providing outstanding care in the communities it calls home. Temporal changes in the measures on 1-year follow-up MRI in 11 NPH patients (with or without ventriculoperitoneal shunting) were also assessed. Receiver operating characteristics (ROC) and multivariable analysis were used to assess the screening performance of each measure in differentiating and predicting NPH from non-NPH groups respectively. To evaluate the utility of the splenial angle (SA), an axial angular index of lateral ventriculomegaly measured on diffusion tensor MRI color fractional anisotropy maps, in differentiating NPH from Alzheimer's disease (AD), Parkinson's disease (PD), and healthy controls (HC), and post-shunt changes in NPH, compared to Evans' index and callosal angle.Įvans' index, callosal angle, and SA were measured on brain MRI of 76 subjects comprising equal numbers of age- and sex-matched subjects from each cohort of NPH, AD, PD, and HC by two raters. ![]()
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