Evaluation of Brain Death by Using Transcranial Doppler
- VernacularTitle:经颅多普勒超声对脑死亡的观察(4例报告及文献复习)
- Author:
Bo YANG
- Publication Type:Journal Article
- Keywords:
transcranial doppler brain death
- From:
Chinese Journal of Trauma
1991;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Transcranial doppler (TCD) was used to measure the flow velocities of middle cerebrial artery (MCA) in 4 patients of clinical brain death. The reaults showed that the changes were similar in all the patients studied; 1) the dierotic notch (DN) was deeper in the spectrum of flow velocities of MCA, end diastolic flow rate (VD) significantly decreased, and the pulastility index (PI) increased ; 2) VD decreased progressively; 3) all patients showed characteristic to-and-fro TCD pattren with antegrade flow in systole and retrograde flow in diastole; 4) the pattern totally disappeared when the patients were claimed dead. It is found that TCD is valuable for the determination of brain death.
