Fig. 1From: Head to toe ultrasound: a narrative review of experts’ recommendations of methodological approachesTranscranial color-coded duplex ultrasonography. The insonation windows for cerebral blood flow velocities assessment are shown. For the insonation of the anterior cerebral artery, middle cerebral artery, and posterior cerebral artery, the transtemporal window is used. For internal carotid artery, submandibular window; for basilar artery and vertebral artery, the occipital window is used. A1, anterior cerebral artery A1 tract; MCA, middle cerebral artery; P1, posterior cerebral artery P1 tract; ICA, internal carotid arteryBack to article page