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 5

Comparison of the CT parameters in the occipital lobe before and after anesthesia in patients. (a–d) illustrated the level of CBF, CBV, TTP, and MTT in the occipital lobe, respectively. Compared with the level before anesthesia, .
(a)
(b)
(c)
(d)