scholarly journals Comparing multifocal pupillographic objective perimetry (mfPOP) and multifocal visual evoked potentials (mfVEP) in retinal diseases

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Faran Sabeti ◽  
Andrew C. James ◽  
Corinne F. Carle ◽  
Rohan W. Essex ◽  
Andrew Bell ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Retinal Diseases ◽  
Multifocal Visual Evoked Potentials ◽  
Objective Perimetry ◽  
Visual Evoked

scholarly journals Using advanced analysis of multifocal visual-evoked potentials to evaluate the risk of clinical progression in patients with radiologically isolated syndrome

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. M. Miguel ◽  
M. Roldán ◽  
C. Pérez-Rico ◽  
M. Ortiz ◽  
L. Boquete ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Area Under The Curve ◽  
Multifocal Visual Evoked Potentials ◽  
Radiologically Isolated Syndrome ◽  
Advanced Analysis ◽  
The Time Domain ◽  
Visual Evoked

AbstractThis study aimed to assess the role of multifocal visual-evoked potentials (mfVEPs) as a guiding factor for clinical conversion of radiologically isolated syndrome (RIS). We longitudinally followed a cohort of 15 patients diagnosed with RIS. All subjects underwent thorough ophthalmological, neurological and imaging examinations. The mfVEP signals were analysed to obtain features in the time domain (SNRmin: amplitude, Latmax: monocular latency) and in the continuous wavelet transform (CWT) domain (bmax: instant in which the CWT function maximum appears, Nmax: number of CWT function maximums). The best features were used as inputs to a RUSBoost boosting-based sampling algorithm to improve the mfVEP diagnostic performance. Five of the 15 patients developed an objective clinical symptom consistent with an inflammatory demyelinating central nervous system syndrome during follow-up (mean time: 13.40 months). The (SNRmin) variable decreased significantly in the group that converted (2.74 ± 0.92 vs. 4.07 ± 0.95, p = 0.01). Similarly, the (bmax) feature increased significantly in RIS patients who converted (169.44 ± 24.81 vs. 139.03 ± 11.95 (ms), p = 0.02). The area under the curve analysis produced SNRmin and bmax values of 0.92 and 0.88, respectively. These results provide a set of new mfVEP features that can be potentially useful for predicting prognosis in RIS patients.

Dichoptic Stimulation Improves Detection of Glaucoma with Multifocal Visual Evoked Potentials

2007 ◽  
Vol 48 (10) ◽  
pp. 4590 ◽  
Author(s):  
Hemamalini Arvind ◽  
Alexander Klistorner ◽  
Stuart Graham ◽  
John Grigg ◽  
Ivan Goldberg ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Multifocal Visual Evoked Potentials ◽  
Visual Evoked
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