Research Article

Painless Gastrointestinal Endoscopy Assisted with Computed Tomography Image Information Data Monitoring in Postoperative Neurocognitive Dysfunction in Patients with Combined Anesthesia of Propofol and Butorphanol Tartrate under Electronic Health

Figure 4

Comparison of CT parameters in the frontal lobe before and after anesthesia. (a–d) suggested the CBF, CBV, TTP, and MTT in the frontal lobe. Compared with the level before anesthesia, .
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