Figure 9B.1 (A) Illuminated skull demonstrating transducer position over the temporal bone for axial planes. (B) T2-weighted MRI, coronal image, demonstrating five axial insonation planes (1 = midbrain, 2 =…

(MFV, SPR)Stenosis ≥70%(MFV, SPR)Diffuse disease or near occlusion(MFV, SPR)MCA≥ 100 cm/s, ≥2≥ 120cm/s, ≥3<30cm/s, <1ACA≥ 80 cm/s, ≥2n.a., ≥3<30cm/s, <1PCA≥ 80 cm/s, ≥2n.a., ≥3<30cm/s, <1BA≥ 90 cm/s, ≥2≥ 110 cm/s…

Figure 9C.1 Anatomy of the circle of Willis. A1, ACA: part 1 of anterior cerebral artery; A2, ACA: part 2 of anterior cerebral artery; ACoA: anterior communicating artery; BA: basilar…

Figure 9A.1 Cerebral arteries (basal view) and circle of Willis. 1 = Superior cerebellar artery; 2 = basilar artery; 3 = pontine branches; 4 = vertebral artery; 5 = anterior…

Figure 24.1 Bone windows with typical transducer positions applied for TCS. The orientation of transducer is indicated by a blue arrow (arrow head corresponding to left side on ultrasound screen)….

Figure 22.1 Sinuses and veins detectable by ultrasound: 1, deep middle cerebral vein; 2, middle cerebral artery; 3, anterior cerebral artery; 4, posterior cerebral artery; 5, basal vein of Rosenthal;…

Figure 23.1 Color-coded duplex sonography of three different segments of the internal jugular vein (IJV) using cross-sectional insonation planes: the smaller cranial segment lateral of the internal carotid artery (ICA)…

Figure 15.1 Arterial anatomy from the aorta to the arteries of the head. © CAT grafika. Internal carotid arteries (ICAs): these large arteries are the main branches of the common…

Figure 13.1 Real-time display of brain perfusion with low MI perfusion imaging of the brain on a Philips IU22 platform using a 1- to 5-MHz dynamic pulsed-array transducer. (A) The…

Figure 7.1 Cervical MRI (axial plane and T1 fat suppression technique). (A) Vertebral artery dissection. (B) Bilateral internal carotid artery dissections. Arrows indicate semilunar signal hyperintensities representing intramural hematoma. MRI…