Journal: Life

Article Title: Concomitant Dysregulation of Cerebral Vasoreactivity and Arterial Blood Pressure Is Closely Related in Patients with Carotid Stenosis

doi: 10.3390/life16030472

Figure Lengend Snippet: Chart flow of the present study. Assessment of the function of cerebrovascular reactivity and the cardiovascular autonomic nervous system in patients with severe internal carotid artery stenosis: three functional transcranial Doppler (TCD) tests were used to assess cerebrovascular reactivity, and the integrity of the cardiovascular autonomic nervous system was determined based on parameters of the validated autonomic indices of the Valsalva maneuver, namely sympathetic index, Valsalva heart rate ratio, and pressure recovery time. Both reduced cerebrovascular reactivity and cardiovascular autonomic dysfunction may represent serious cerebrovascular risk factors. The image depicting severe internal carotid artery stenosis was obtained using duplex Doppler ultrasound in our laboratory and Microsoft PowerPoint for Microsoft 365 (Version 2602) was additionally use to prepare this figure.

Article Snippet: Bilateral middle cerebral artery (MCA) blood flow velocity (BFV, cm/s) was measured using 2 MHz transcranial Doppler (TCD) probes (DWL Multi-Dop T2, Compumedics Germany GmbH, Sipplingen, Baden, Germany) with participants in a semi-sitting position via the transtemporal window at a depth of 45–55 mm.

Techniques: Functional Assay

Journal: Journal of Cerebral Blood Flow & Metabolism

Article Title: Dynamic autoregulation of cerebral blood flow measured non-invasively with fast diffuse correlation spectroscopy

doi: 10.1177/0271678x17747833

Figure Lengend Snippet: Figure 2. Dynamic cerebral autoregulation estimated from 11 healthy subjects with the thigh cuff method, using relative blood flows measured with transcranial Doppler ultrasound (left), cerebral blood flow with optics (middle), and extra-cerebral/scalp blood flow with optics (right). Panel in the first row shows the corresponding changes in mean arterial blood pressure. In all panels, black dashed lines at time t ¼ 0, represents the instant of cuff deflation, while solid gray lines depict the individual measurements. Solid blue, red, and green lines are the averaged relative changes in blood pressure, blood flow and cerebrovascular resistance, respectively; 95% con- fidence intervals of these averages are marked by the shaded region in the corresponding color. ‘Autoregulation times’ are denoted by the red dashed vertical lines; measurements during these times were used to estimate the rate of regulation.

Article Snippet: The TCD probes (Compumedics Ltd, Singen, Germany) were placed at the temporal bone windows to insonate the MCA and/or the anterior cerebral artery (ACA) in each hemisphere.

Techniques:

Journal: Paediatric Anaesthesia

Article Title: Bilateral Transcranial Doppler Monitoring During Neonatal Cardiac Surgery; Guidance for Clinical and Scientific Use

doi: 10.1002/pan.70106

Figure Lengend Snippet: Our setup included a TCD system, data‐collection PC, and monitor on a mobile frame. Left; Screw‐topped monitoring probe fixated with the adhesive set on the right temporal acoustic window. Right; The probes (A) are fixated on the mounting rings (B). The probes are connected with three‐meter extension cords (C), allowing a safe distance from the surgical field. Fixation of the mounting rings is done with the commercially available adhesive (D).

Article Snippet: The TCD system used was the Doppler‐BoxX with the screw‐topped 2 MHz pulsed wave probes (DWL, Compumedics Germany GmbH, Singen, Germany).

Techniques: Adhesive