{'fraction_non_alphanumeric': 0.020242914979757085, 'fraction_numerical': 0.006747638326585695, 'mean_word_length': 5.625, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Teaching NeuroImages: Spectrum of paradural dissections of the vertebral artery

Dissections of the vertebral artery are considered an important cause of stroke, especially in younger patients. Most dissections occur at the atlas loop where the vessel has its greatest mobility but can also extend into the intradural segments or primarily arise within the intradural segment. Antiplatelet therapy or anticoagulation for 3–6 months is efficient in patients with extradural dissections1 (figure, A and B) while antiplatelet therapy is preferred if the dissection is intradural (figure, C–E). Fat saturated T1-weighted images can reliably demonstrate the location and extent of the mural hematoma2 and thus contribute to therapeutic decisions.