Fig. 4From: An investigation of neuromelanin distribution in substantia nigra and locus coeruleus in patients with Parkinson’s disease using neuromelanin-sensitive MRIReceiver operating characteristic curves of different sources in SN and LC. A: the diagnostic value of CNR using NM-MRI in early PD patients. B: the diagnostic value of CNR using NM-MRI in progressive PD patientsBack to article page