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Daniel Harrison Head shot

Daniel Harrison, MD
Principal Investigator
Associate Professor of Medicine

Dr. Harrison is a clinically trained neurologist, specializing in the treatment of patients with multiple sclerosis and other neuroimmunologic disorders. He is a graduate of The Albert Einstein College of Medicine, where he received his medical doctorate.

He trained in neurology through a residency at Columbia University Medical Center and received further training in clinical care and research in a postdoctoral fellowship at the Johns Hopkins University School of Medicine.

During Dr. Harrison’s fellowship, and through a subsequent NIH K23 training grant, he received extensive training in MRI image analysis, clinical research and biostatistics.

NIH, National MS Society and industry grants fund Dr. Harrison’s research.

Seongjin Choi head shot

Seongjin Choi, PhD
Senior Research Analyst

Dr. Choi is a biophysicist by training, specializing in the neuroimaging. He received his doctorate in biophysics (MR physics focused) at The Ohio State University (OSU) for his study of NMR microscopy and spectroscopy of submillimeter-sized biological objects.

In post-graduate training at OSU Wexner Medical Center, he investigated the microstructural integrity in the human brain with mild traumatic brain injury and post-stroke.

He also worked on the phosphorous magnetic resonance spectroscopy (31P-MRS) study of mitochondrial bioenergetics in human skeletal muscle at the National Institute on Aging (NIH/NIA).

His research interest is in developing a work-frame capable of comprehensive biophysical characterization of healthy and pathologic brain tissues utilizing MRI-driven, quantitative metrics and combined with clinical measures and machine-learning methods. He joined Dr. Harrison's research group in 2016.

UM Magnetic Resonance Research and UM Department of Radiology

Members of the MRRC, Rao Gullapalli, PhD, and Jiachen Zhuo, PhD, and members of the Department of Radiology, Erin O’Connor, MD, and Rong Chen, PhD, worked with our team

The F.M. Kirby Center at The Kennedy Krieger Institute (KKI)

Our partners on 7T MRI projects at KKI are invaluable to our research efforts. Jun Hua, PhD, and Xu Li, PhD, continue to provide extensive assistance and collaborate with us on sequence development and image analysis. Peter van Zijl, PhD, who continues to help to oversee our research, has worked with Dr. Harrison since Dr. Harrison's time at Johns Hopkins.

Join Our Lab

We are frequently looking for talented researchers to join our team.

Graduate students, postdoctoral fellows or staff researchers with experience in medical image processing techniques, medical image analysis, MRI protocol development, OCT image analysis and biomarker research can contact Dr. Harrison at