Fig. 4

Pre-treatment (upper rows) and post-treatment (lower rows) SPECT images of a 51-year-old MS patient. There is mild to moderate hypoperfusion through the fronto- parietal cortices bilaterally and sub-cortical structures on pretreatment 99mTc-ECD brain perfusion SPECT, which is almost completely normalized after hyperbaric oxygen therapy (HBOT). The upper rows indicate transverse 99mTc-ECD SPECT images; the middle rows indicate sagittal 99mTc-ECD SPECT images; and the lower rows indicate coronal 99mTc-ECD SPECT images. The EDSS of the patient was 4.00 and her disease duration was about 5 years