Fig. 5
From: Regional cerebral blood flow as predictor of response to occipital nerve block in cluster headache
Exploratory results from local decreases in CBF across all CH patients following GONB at more relaxed initial cluster-forming height threshold. Data included four CBF maps per patient and session. All clusters are significant at p < 0.005 (uncorr). rHT = right hypothalamus; VTA = ventral tegmental area; SN = substantia nigra. Coordinates are represented in MNI space