scholarly journals Transcranial Doppler measurement of middle cerebral artery blood flow velocity: a validation study.

Stroke ◽  
1986 ◽  
Vol 17 (5) ◽  
pp. 913-915 ◽  
Author(s):  
C C Bishop ◽  
S Powell ◽  
D Rutt ◽  
N L Browse
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Validation Study ◽  
Transcranial Doppler ◽  
Blood Flow Velocity ◽  
Artery Blood Flow ◽  
Doppler Measurement

Changes in Middle Cerebral Artery Blood Flow Velocity after the Intravenous Injection of Lidocaine by Transcranial Doppler

2003 ◽  
Vol 45 (5) ◽  
pp. 632 ◽  
Author(s):  
Young Jae Kim ◽  
Sang Woon Park ◽  
Kun Moo Lee ◽  
Soon Ho Cheong ◽  
Young Kyun Choe ◽  
...  
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Intravenous Injection ◽  
Cerebral Artery ◽  
Transcranial Doppler ◽  
Blood Flow Velocity ◽  
Artery Blood Flow

Multimodal Quantitation of the Effects of Endovascular Therapy for Vasospasm on Cerebral Blood Flow, Transcranial Doppler Ultrasonographic Velocities, and Cerebral Artery Diameters

Neurosurgery ◽  
2002 ◽  
Vol 51 (1) ◽  
pp. 30-43 ◽  
Author(s):  
Rod J. Oskouian ◽  
Neil A. Martin ◽  
Jae Hong Lee ◽  
Thomas C. Glenn ◽  
Donald Guthrie ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Endovascular Therapy ◽  
Balloon Angioplasty ◽  
Transcranial Doppler ◽  
Blood Flow Velocity ◽  
Artery Blood Flow

Abstract OBJECTIVE The goal of this study was to quantify the effects of endovascular therapy on vasospastic cerebral vessels. METHODS We reviewed the medical records for 387 patients with ruptured intracranial aneurysms who were treated at a single institution (University of California, Los Angeles) between May 1, 1993, and March 31, 2001. Patients who developed cerebral vasospasm and underwent cerebral arteriographic, transcranial Doppler ultrasonographic, and cerebral blood flow (CBF) studies before and after endovascular therapy for cerebral arterial spasm (vasospasm) were included in this study. RESULTS Forty-five patients fulfilled the aforementioned criteria and were treated with either papaverine infusion, papaverine infusion with angioplasty, or angioplasty alone. After balloon angioplasty (12 patients), CBF increased from 27.8 ± 2.8 ml/100 g/min to 28.4 ± 3.0 ml/100 g/min (P = 0.87); the middle cerebral artery blood flow velocity was 157.6 ± 9.4 cm/s and decreased to 76.3 ± 9.3 cm/s (P < 0.05), with a mean increase in cerebral artery diameters of 24.4%. Papaverine infusion (20 patients) transiently increased the CBF from 27.5 ± 2.1 ml/100 g/min to 38.7 ± 2.8 ml/100 g/min (P < 0.05) and decreased the middle cerebral artery blood flow velocity from 109.9 ± 9.1 cm/s to 82.8 ± 8.6 cm/s (P < 0.05). There was a mean increase in vessel diameters of 30.1% after papaverine infusion. Combined treatment (13 patients) significantly increased the CBF from 33.3 ± 3.2 ml/100 g/min to 41.7 ± 2.8 ml/100 g/min (P < 0.05) and decreased the transcranial Doppler velocities from 148.9 ± 12.7 cm/s to 111.4 ± 10.6 cm/s (P < 0.05), with a mean increase in vessel diameters of 42.2%. CONCLUSION Balloon angioplasty increased proximal vessel diameters, whereas papaverine treatment effectively dilated distal cerebral vessels. In our small series, we observed no correlation between early clinical improvement or clinical outcomes and any of our quantitative or physiological data (CBF, transcranial Doppler velocities, or vessel diameters).

Cerebrovascular Reactivity in Migraineurs as Measured by Transcranial Doppler

Cephalalgia ◽  
1990 ◽  
Vol 10 (2) ◽  
pp. 95-99 ◽  
Author(s):  
T Darrell Thomas ◽  
Gary J Harpold ◽  
B Todd Troost
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Doppler Ultrasound ◽  
Cerebral Artery ◽  
Transcranial Doppler ◽  
Blood Flow Velocity ◽  
Transcranial Doppler Ultrasound ◽  
Cerebrovascular Reactivity ◽  
Artery Blood Flow

Transcranial Doppler ultrasound is a relatively new diagnostic modality which allows the non-invasive assessment of intracranial circulation. A total of 10 migraine patients were studied and compared to healthy controls without headaches. Migraineurs during the headache-free interval demonstrated excessive cerebrovascular reactivity to CO2, evidenced by an increase in middle cerebral artery blood flow velocity of 47% ± 15% compared to 28% ± 14% in controls ( p = 0.026). Differences between the two study groups revealed no significant decrease in middle cerebral artery blood flow velocity with hypocapnia. However, the differences between middle cerebral artery blood flow velocity during hyperventilation and CO2 inhalation were significantly different ( p = 0.004) comparing migraineurs and controls. Instability of the baseline blood flow velocities was also noted in migraineurs during the interictal period. Characteristics which may allow differentiation of migraineurs from other headache populations could possibly be obtained from transcranial Doppler ultrasound flow studies.

SIGNIFICANTLY LOWER RIGHT MIDDLE CEREBRAL ARTERY BLOOD FLOW VELOCITY IN THE FIRST EPISODE OF PSYCHOSIS DURING NEUROCOGNITIVE TESTING

2018 ◽  
Vol 30 (2) ◽  
pp. 172-182 ◽  
Author(s):  
Ivana Kekin ◽  
◽  
Dina Bosnjak ◽  
Porin Makaric ◽  
Zarko Bajic ◽  
...  
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Blood Flow Velocity ◽  
First Episode ◽  
Artery Blood Flow ◽  
Neurocognitive Testing

Changes in Maternal Middle Cerebral Artery Blood Flow Velocity Associated with General Anesthesia in Severe Preeclampsia

1999 ◽  
Vol 88 (2) ◽  
pp. 357-361 ◽  
Author(s):  
Jaya Ramanathan ◽  
John J. Angel ◽  
Andrew J. Bush ◽  
Phyllis Lawson ◽  
Baha Sibai
Keyword(s):  
Blood Flow ◽  
General Anesthesia ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Blood Flow Velocity ◽  
Severe Preeclampsia ◽  
Artery Blood Flow

scholarly journals Dynamic Regulation of Middle Cerebral Artery Blood Flow Velocity in Aging and Hypertension

Stroke ◽  
2000 ◽  
Vol 31 (8) ◽  
pp. 1897-1903 ◽  
Author(s):  
Lewis A. Lipsitz ◽  
Seiji Mukai ◽  
Jason Hamner ◽  
Margaret Gagnon ◽  
Viken Babikian
Keyword(s):  
Blood Flow ◽  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Blood Flow Velocity ◽  
Artery Blood Flow ◽  
Dynamic Regulation
Sign in / Sign up

Export Citation Format

Share Document