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Thalamic electrical stimulation by means of chemically implanted electrodes and an externally placed transmitter was effected in patients with central pain. Good response was obtained in four patients with anesthesia dolorosa, four with thalamic syndrome, and one with paraplegic pain. Two patients with medullary syndrome experienced no relief. The mechanism(More)
BACKGROUND Filtered back-projection (FBP) has been a standard in SPECT imaging. Newer iterative reconstruction algorithms have been shown to improve image quality and shorten acquisition time by taking into account statistical nature of raw data and using resolution recovery (RR). Wide-beam reconstruction (WBR) is an iterative algorithm with RR and adaptive(More)