A comparison of lesion-overlap approaches to quantify corticospinal tract involvement in chronic stroke
Clarissa Pedrini Schuch, Timothy K. Lam, Mindy F. Levin, Steven C. Cramer, Richard H. Swartz, Alexander Thiel, Joyce L. Chen
Abstract
• Corticospinal tract involvement with a stroke lesion is a biomarker of motor outcome. • Four approaches quantifying corticospinal tract involvement were compared. • All approaches explained 20–30% of variance in chronic stroke motor impairment. • Maximum overlap and percent subsections injured approaches explained most variance.
Topics & Concepts
Corticospinal tractStroke (engine)LesionChronic strokePhysical medicine and rehabilitationPyramidal tractsNeuroscienceBiomarkerMedicinePsychologyPathologyMagnetic resonance imagingRehabilitationBiologyRadiologyDiffusion MRIEngineeringBiochemistryMechanical engineeringStroke Rehabilitation and RecoveryTranscranial Magnetic Stimulation StudiesBotulinum Toxin and Related Neurological Disorders