Carbondioxide reactivity of the blood flow in human basilar artery estimated by the transcranial doppler method in normal men: A comparison with that of the middle cerebral artery

1988 ◽  
Vol 14 (6) ◽  
pp. 479-483 ◽  
Author(s):  
Satoshi Ogawa ◽  
Nobuo Handa ◽  
Masayasu Matsumoto ◽  
Hideki Etani ◽  
Shotaro Yoneda ◽  
...  
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Basilar Artery ◽  
Transcranial Doppler ◽  
Doppler Method ◽  
Normal Men

scholarly journals Transcranial Doppler Enhanced Thrombolysis for Embolic Occlusion of Major Cerebral Arteries

2003 ◽  
Vol 9 (1_suppl) ◽  
pp. 129-132
Author(s):  
T. Yamanome ◽  
M. Sasoh ◽  
Y. Kubo ◽  
Y. Nishikawa ◽  
H. Endoh ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Basilar Artery ◽  
Transcranial Doppler ◽  
Cerebral Arteries ◽  
Ultrasound Irradiation ◽  
Haemorrhagic Transformation ◽  
Good Outcome

For the treatment of 11 patients with hyperacute embolic occlusion of major cerebral arteries (ten with occlusion of middle cerebral artery and one with occlusion of basilar artery), TCD-enhanced thrombolysis (TCDET) was performed in combination with ultrasound irradiation, using diagnostic transcranial Doppler (TCD) (TC2-64B: 2MHz, 100mW/cm2, pulsed wave) (TCDET group), and the effectiveness of this procedure was compared with that of local intra-arterial fibrinolysis (LIF) in 45 patients with embolic occlusion of the middle cerebral artery (LIF group). Regarding dose of TPA, the LIF group used 1046.7 ± 607.8 units and the TCDET group 700.0 ± 431.3 units (p < 0.05). Regarding time technically required to attain recanalization, the LIF group required 68.2 minutes, and the TCDET group 28.6 minutes. A good outcome was noted in 60.8% of the LIF group and 64% of the TCDET group. Haemorrhagic transformation was observed in 7.8% of the LIF group and in 0% of the TCDET group. No complications due to TCD irradiation were observed in the TCDET group. These findings suggest that TCDET can be an effective method of achieving recanalization.

Cluster Headache: Transcranial Doppler Ultrasound and rCBF Studies

Cephalalgia ◽  
1990 ◽  
Vol 10 (2) ◽  
pp. 87-94 ◽  
Author(s):  
Arve Dahl ◽  
David Russell ◽  
Rolf Nyberg-Hansen ◽  
Kjell Rootwelt
Keyword(s):  
Blood Flow ◽  
Cluster Headache ◽  
Glyceryl Trinitrate ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Transcranial Doppler ◽  
Statistical Significance ◽  
Transcranial Doppler Ultrasound ◽  
Normal Limits ◽  
Symptomatic Side

Transcranial Doppler and rCBF examinations were carried out in 25 cluster headache patients. Spontaneous and glyceryl trinitrate (nitroglycerin) provoked attacks were accompanied by a bilateral decrease in middle cerebral artery blood flow velocities. This decrease was more pronounced on the symptomatic side but the difference did not reach statistical significance. Mean hemispheric blood flow and rCBF were within normal limits during provoked attacks and similar to those found when patients were attack-free. During cluster periods middle cerebral artery velocities were significantly higher on the symptomatic side. Glyceryl trinitrate caused a bilateral middle cerebral artery velocity decrease which was significantly greater on the symptomatic side. Attacks provoked by glyceryl trinitrate appeared to begin when the vasodilatory effect of this substance was receding.

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