PMC8053470_01
(a) Computed tomography scan showing a left CSDH, (b) Postoperative CT scan showing no obvious findings, (c) CT scan the day after the operation revealing a left intraventricular hemorrhage.
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F1
Computed tomography showed a subdural hematoma compressing the left cerebral hemisphere [Figure 1a]. No acute bleeding or increase in the left hemispheric hematoma was detected [Figure 1b]. A repeat brain CT scan revealed left intraventricular hemorrhage [Figure 1c].
CTP parametric maps, CBF (a), CBV (b), MTT (c), and TTP (d) demonstrate hyperperfusion within the left hemisphere next day after surgery. CBF: Cerebral blood flow, CBV: Cerebral blood volume, MTT: Mean transit time, TTP: Time to peak.
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CT perfusion (CTP) demonstrated hyperperfusion of the MCA territories in the left hemisphere [Figure 2a-d].
(a and b) Axial section and coronal section of single-photon emission CT showed hyperperfusion of the left hemisphere day after surgery, (c) CT angiography showing marked left MCA dilation the day after surgery.
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F3
Single-photon emission CT (SPECT) also showed hyperperfusion of the left hemisphere [Figure 3a and b]. Furthermore, CT angiography (CTA) showed marked left MCA dilation on the day after surgery [Figure 3c].