Ultrafast power Doppler imaging for ischemic encephalopathy: A case report

Figure 1 Preoperative nonenhanced magnetic resonance imaging shows a large space-occupying lesion containing cystic and solid components in the right frontotemporal lobe. A: T1 weighted image; B: T2 weighted image.

Figure 2 Preoperative and repeated postoperative computed tomography scans. A: Preoperative computed tomography (CT) scan showed a large space-occupying lesion; B: CT scan 6 h after emergency tumor resection; C: On the 3^rd postoperative day, noncontrast CT showed diffuse brain swelling and low perfusion; D: CT scan 6 h after decompressive craniectomy; E. Noncontrast CT scan on the 6^th d after decompressive craniectomy; F: Noncontrast CT scan on the 9^th d after decompressive craniectomy. The density of the cortical gyrus and right basal ganglia increased; G: Noncontrast CT scan on the 12^th d after decompressive craniectomy. The density of both the cortical gyrus and the bilateral basal ganglia increased gradually; H: Noncontrast CT scan on the 15^th d after decompressive craniectomy. The density of both the cortical gyrus and the bilateral basal ganglia increased significantly.

Figure 3 Ultrasound scan on the 15^th d after decompressive craniectomy. A: Ultrasound B-mode image obtained by a clinical ultrasound system (BK2300, BK Medical, Denmark); B: Ultrasound B-mode image obtained by a Verasonics Vantage 256 system (Verasonics Inc., Kirkland, WA, United States); C: Ultrafast power Doppler imaging overlaid on the B-mode image.