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AUTOMATED DIAGNOSES OF ATTENTION DEFICIT HYPERACTIVE DISORDER USING MAGNETIC RESONANCE IMAGING
Johns Hopkins University, Dept. of Biostatistics Working Papers
  • Ani Eloyan, Johns Hopkins Bloomberg School of Public Health, Department of Biostatistics
  • John Muschelli, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health and Kennedy Krieger Institute
  • Mary Beth Nebel, Kennedy Krieger Institute
  • Han Liu, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health
  • Fang Han, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health
  • Tuo Zhao, Department of Computer Science, Whiting School of Engineering, Johns Hopkins University
  • Anita Barber, Kennedy Krieger Institute
  • Suresh Joel, Kennedy Krieger Institute
  • James J. Pekar, Kennedy Krieger Institute
  • Stewart Mostofsky, Kennedy Krieger Institute
  • Brian Caffo, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health
Date of this Version
4-27-2012
Abstract

Successful automated diagnoses of attention de.cit hyperactive disorder (ADHD) using imaging and functional biomarkers would have fundamental consequences on the public health impact of the disease. In this work, we show results on the predictability of ADHD using imaging biomarkers and discuss the scienti.c and diagnostic impacts of the research. We created a prediction model using the land­mark ADHD 200 data set focusing on resting state functional connectivity (rs-fc) and structural brain imaging. We predicted ADHD status and subtype, obtained by behavioral examination, using imaging data, intelligence quotients and other co­variates. The novel contributions of this manuscript include a thorough exploration of prediction and image feature extraction methodology on this form of data, in­cluding the use of singular value decompositions, CUR decompositions, random forest, gradient boosting, bagging, voxel-based morphometry and support vector machines as well as important insights into the value, and potentially lack thereof, of imaging biomarkers of disease. The key results include the CUR-based decom­position of the rs-fc-fMRI along with gradient boosting and the prediction algorithm based on a motor network parcellation and random forest algorithm. We conjecture that the CUR decomposition is largely diagnosing common population directions of head motion. Of note, a byproduct of this research is a potential automated method for detecting subtle in-scanner motion. The .nal prediction algorithm, a weighted combination of several algorithms, had an external test set speci.city of 94% with sensitivity of 21%. The most promising imaging biomarker was a correlation graph from a motor network parcellation. In summary, we have undertaken a large-scale statistical exploratory prediction exercise on the unique ADHD 200 data set. The exercise produced several potential leads for future scienti.c exploration of the neu­rological basis of ADHD.

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Citation Information
Ani Eloyan, John Muschelli, Mary Beth Nebel, Han Liu, et al.. "AUTOMATED DIAGNOSES OF ATTENTION DEFICIT HYPERACTIVE DISORDER USING MAGNETIC RESONANCE IMAGING" (2012)
Available at: http://works.bepress.com/john_muschelli/1/