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Fig. 3 | The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Fig. 3

From: Hyperbaric oxygen therapy after acute ischemic stroke with large penumbra: a case report

Fig. 3

CT perfusion: serial computed tomography-perfusion studies over 2 weeks using the RAPID software. a The initial CT-perfusion on presentation showing a core infarction of 58 ml, ischemia of 147 ml, mismatch volume of 89 ml and mismatch ratio of 2.5. bd Follow-up CT-perfusion studies after starting hyperbaric oxygen therapy (HBOT) presented in order showing ischemia reduction (b 77 ml, c 38 ml, and d 48 ml). Although there is a slight increase in the penumbra after the fifth session of HBOT, a clear trend of penumbra reduction is seen through the follow-up studies compared to the initial study. Although the amount of clinical improvement is less than the radiological improvement, the relatively large core infarction and its location might be the determinant of that perfusion/clinical mismatched improvement

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