Indication for invasive diagnostic studies and surgical therapy in cerebral ischemia, based on results of non-invasive transcranial Doppler sonography

1991 ◽  
Vol 14 (4) ◽  
pp. 261-265 ◽  
Author(s):  
H. Maximilian Mehdorn ◽  
Bernd Hoffmann ◽  
Axel Feldges
Keyword(s):  
Cerebral Ischemia ◽  
Surgical Therapy ◽  
Transcranial Doppler ◽  
Doppler Sonography ◽  
Transcranial Doppler Sonography ◽  
Non Invasive ◽  
Diagnostic Studies

scholarly journals The use of transcranial Doppler sonography in a pediatric neurological clinic

1998 ◽  
Vol XXX (1-2) ◽  
pp. 65-65
Author(s):  
V. I. Guzeva ◽  
А. N. Trubacheva
Keyword(s):  
Transcranial Doppler ◽  
Arteriovenous Malformations ◽  
Doppler Sonography ◽  
High Efficiency ◽  
Transcranial Doppler Sonography ◽  
Cerebral Hemodynamics ◽  
Adult Patients ◽  
Vascular Pathology ◽  
Non Invasive

In the study of cerebral hemodynamics in children, methods that allow multiple non-invasive vascular examination are of great importance. The experience of using one of these methods - transcranial Doppler sonography (TCD) - in adult patients has shown its high efficiency in determining hemodynamically significant organic vascular pathology (occlusions, stenoses, vasospasm, aneurysms, and arteriovenous malformations).

scholarly journals Detecting a patent foramen ovale by transcranial doppler sonography (tcd)

1996 ◽  
Vol XXVIII (3-4) ◽  
pp. 23-25
Author(s):  
М. Salaschek ◽  
R. Winkel
Keyword(s):  
Cerebral Ischemia ◽  
Transcranial Doppler ◽  
Patent Foramen Ovale ◽  
Doppler Sonography ◽  
Saline Solution ◽  
Transcranial Doppler Sonography ◽  
Unknown Origin ◽  
Paradoxical Embolism ◽  
Foramen Ovale ◽  
Insignificant Difference

In patients with cerebral ischemia of unknown origin, paradoxical embolism must be considered as one of the possible causes, if there is an abnormal right-to- left shunt. The most likely site of transmission is a persisting patent foramen ovale (PFO), which is found in approximately 30% of adult persons in autopsy studies. Using transcranial Doppler sonography (TCD) and an agitated saline solution as an inexpensive and readily available contrast medium, probably all clinically important right-to-left shunts can be detected. In our department we examined 215 patients within the last 5 years, 30% of which had an abnormal right-to-left shunt with insignificant difference between 10 and 69 years of age.

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