Marijuana Affects Blood Flow in Brain Even After Abstinence | Medpage Today
Specifically, the authors recorded blood flow velocity in the anterior and middle cerebral arteries. ... The blood flow velocity in brain arteries was tested with transcranial Doppler sonography in all participants at the beginning ... found the blood flow velocity was significantly higher in the marijuana users than in the control subjects, both at the ... The marijuana users also had higher values on the pulsatility index (PI). This result could be due to narrowing of the blood ...https://www.medpagetoday.com/neurology/generalneurology/467
A review of cost-effectiveness of palivizumab for respiratory syncytial virus.
18499855 - Blood flow velocities in the anterior cerebral artery and basilar artery in asphyxiated.... 20688615 - Risk factors ...http://www.biomedsearch.com/nih/review-cost-effectiveness-palivizumab-respiratory/23140255.html
Posterior Circulation Stroke: Animal Models and Mechanism of Disease
"Early childhood gender differences in anterior and posterior cerebral blood flow velocity and autoregulation," Pediatrics, vol ... "Gender differences in cerebral blood flow velocity and autoregulation between the anterior and posterior circulations in ... have higher flow velocities for both the middle cerebral and basilar arteries, while both sexes exhibit greater flow velocity ... "CO2 response for the brain stem artery blood flow velocity in man," Respiration Physiology, vol. 104, no. 1, pp. 71-75, 1996. ...https://www.hindawi.com/journals/bmri/2012/587590/
Transcranial Doppler - Wikipedia
Functional TCD uses pulse-wave Doppler technology to record blood flow velocities in the anterior, middle, and posterior ... Once the desired blood vessel is found, blood flow velocities may be measured with a pulsed Doppler effect probe, which graphs ... are types of Doppler ultrasonography that measure the velocity of blood flow through the brain's blood vessels by measuring the ... Although TCD is not so accurate due to relative velocity of blood flow, but it is still useful for diagnosis of arterial ...https://en.wikipedia.org/wiki/Transcranial_doppler
Ibuprofen vs. Continuous Indomethacin in the Treatment of PDA
renal function, on blood flow velocity in the superior mesenteric artery, the anterior cerebral artery, and the renal artery. ... allowing unoxygenated blood to bypass the lung and flow to the PLACENTA. Normally, the ductus is closed shortly after birth. ... A fetal blood vessel connecting the pulmonary artery with the descending aorta. ... patient exhibits CYANOSIS and ACIDOSIS due to the persistence of fetal circulatory pattern of right-to-left shunting of blood ...https://www.bioportfolio.com/resources/trial/99065/Ibuprofen-vs-Continuous-Indomethacin-in-the-Treatment-of-PDA.html
Changes in cerebral artery blood flow velocity after intermittent cerebrospinal fluid drainage. | Archives of Disease in...
Doppler ultrasound was used to measure blood flow velocity in the anterior cerebral artery of six premature infants with ... There was a significant increase in mean blood flow velocity after the drainage procedures (+5.6 cm/s, 95% confidence interval ... Changes in cerebral artery blood flow velocity after intermittent cerebrospinal fluid drainage. ... Changes in cerebral artery blood flow velocity after intermittent cerebrospinal fluid drainage. ...http://adc.bmj.com/content/69/1_Spec_No/74
Simultaneous assessment of wall motion and coronary flow velocity in the left anterior descending coronary artery during...
... reserve in the left anterior descending coronary artery (LAD) by transthoracic approach for ... study was designed to assess the feasibility and clinical meaning of simultaneous assessment of wall motion and coronary flow ... Blood Flow Velocity*. Constriction, Pathologic. Coronary Angiography. Coronary Vessels / pathology, physiology*. Dipyridamole ... Simultaneous assessment of wall motion and coronary flow velocity in the left anterior descending coronary artery during ...http://www.biomedsearch.com/nih/Simultaneous-assessment-wall-motion-coronary/12724655.html
Patente US7811549 - Methods, compositions, unit dosage forms, and kits for pharmacologic stress ... - Google Patentes
Blood flow velocity was measured in the left anterior descending coronary artery (LAD) at four time points: (i) before initial ... The measured blood flow velocities (known as reflecting coronary blood flow values), whether peak or mean, were 1.5 to 4% lower ... ratio of maximal-stimulated coronary blood flow "CBF" to baseline-resting CBF equivalent to peak and mean blood flow velocities ... Primary efficacy end-points were peak and mean diastolic flow velocities (measured as reflecting coronary blood flow values). ...http://www.google.es/patents/US7811549?dq=flatulence
Transcranial Alternating Current Stimulation - Full Text View - ClinicalTrials.gov
the mean blood flow velocity (MFV) [ Time Frame: 30 minutes ]. captured for the middle, anterior, and posterior cerebral artery ... and the mean blood flow velocity (MFV) and Gosling pulsatility index (PI) captured for the middle, anterior, and posterior ... was largely attributed to a lowering of the vascular autoregulatory activity together with an increase in blood flow velocity ... positive transtemporal windows for bilateral middle, anterior, and posterior cerebral arteries insonation (according to the ...https://clinicaltrials.gov/show/NCT01200719
Acute Effect of Hypervolemic Hemodilution on Retrobulbar Hemodynamics in Anterior Ischemic Optic Neuropathy
After infusion of HES blood flow velocities significantly increased in the CRA (PSV from to (. ); EDV from to (. )) and in the ... Hypervolemic hemodilution has an acute effect on blood flow velocities in the CRA and PCAs in NAION patients. Increased blood ... Peak systolic velocity (PSV), end diastolic velocity (EDV), and Pourcelot's resistive index (RI) were measured in the ... Acute Effect of Hypervolemic Hemodilution on Retrobulbar Hemodynamics in Anterior Ischemic Optic Neuropathy. Marion Bienert,1 ...https://www.hindawi.com/journals/bmri/2018/4756313/abs/
Effects of a divided high loading dose of caffeine on circulatory variables in preterm infants | ADC Fetal & Neonatal Edition
ACA, anterior cerebral artery. *BFV, blood flow velocity. *CA, coeliac artery. *ICA, internal carotid artery ... caffeine given four hours apart resulted in reductions in cerebral blood flow velocity whereas intestinal blood flow velocity ... and mean average flow velocity from five consecutive, homogeneous flow waves. Flow velocities in the SMA and CA were measured ... Comparison of caffeine-induced changes in cerebral blood flow and middle cerebral artery blood velocity shows that caffeine ...http://fn.bmj.com/content/91/1/F61
Relatively higher norms of blood flow velocity of major intracranial arteries in North-West Iran | BMC Research Notes | Full...
Mean blood flow velocity in middle, anterior and posterior cerebral arteries, vertebral and basilar arteries was 60 ± 8, 52 ± 9 ... Cerebral blood flow velocities among females were relatively higher than males. Cerebral blood flow velocity of left side was ... The aim of this study was to assess normal population values of cerebral blood flow velocity and its variation over age and ... Compared to previous studies, cerebral blood flow velocity in this population was relatively higher. ...https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-3-174
Cerebral Blood Flow Velocity and Periventricular White Matter Hyperintensities in Type 2 Diabetes | Diabetes Care
Periventricular WMHs and punctuate lesions were graded on all slices in the anterior, middle, and posterior cerebral artery ... and blood-brain barrier permeability, thus affecting regional metabolism and blood flow regulation (4). Xenon blood flow (5) ... The aim of this study was to assess the effects of type 2 diabetes on blood flow velocities (BFVs) in the middle cerebral ... Cerebral Blood Flow Velocity and Periventricular White Matter Hyperintensities in Type 2 Diabetes. ...http://care.diabetesjournals.org/content/29/7/1529
RESEARCH ARTICLE: ISCHEMIA Pain, Dizziness, and Central Nervous System Blood Flow in Cervical Extension - PDF
... and Central Nervous System Blood Flow in Cervical Extension 1 Vascular Correlations to Beauty Parlor Stroke Syndrome and Salon ... Blood flow velocity in the anterior circulation was significantly increased when the additional neck support was not used as ... and carotid blood flow. No statistically significant differences were seen in the vertebral artery blood flow when comparing ... 3 Diagnostic vascular ultrasound was used to measure blood flow velocity of the vertebral and carotid arteries bilaterally. ...http://docplayer.net/31015494-Research-article-ischemia-pain-dizziness-and-central-nervous-system-blood-flow-in-cervical-extension.html
Clinical, Angiographic and Hemodynamic Predictors of Recruitable Collateral Flow Assessed During Balloon Angioplasty Coronary...
... transient increase in the maximal diastolic blood flow velocity of the left anterior descending coronary artery and absence of ... intracoronary blood flow velocity assessment is a sensitive technique for the detection of alterations in blood flow, but this ... 1.4 Quantitative coronary blood velocity analysis.. Collateral flow was determined by the transient increase of coronary blood ... Furthermore, this model enables quantification of collateral flow indices by means of coronary blood flow velocity analysis of ...http://www.onlinejacc.org/content/29/2/275
Transcranial doppler in sickle cell anaemia: evaluation of brain blood flow parameters in children of Aracaju, Northeast -...
Baseline brain flow was evaluated. RESULTS: Group1=34 patients; group 2=81 controls. SCA patients had mean velocity (MV)=125.69 ... Controls had MV=79.44±15.54; PI=0.82±0.11; MCAr=13.19±13.77; right anterior cerebral artery/right middle cerebral artery=0.80± ... In conclusion, cerebral blood flow profile in children with SCD showed higher cerebral speed flow and lower pulsatility index ... Transcranial doppler in sickle cell anaemia: evaluation of brain blood flow parameters in children of Aracaju, Northeast - ...http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2008000300015
Ultrasound Measurement of Vertebral Artery Blood Flow Before and After High-Velocity, Low-Amplitude Thrust Therapy | The...
The operator placed a finger over the posterior-superior aspect of the transverse process of C1 and thrusted in an anterior- ... Ultrasound Measurement of Vertebral Artery Blood Flow Before and After High-Velocity, Low-Amplitude Thrust Therapy. The Journal ... The immediate effect of atlanto-axial high velocity thrust techniques on blood flow in the vertebral artery: a randomized ... Ultrasound Measurement of Vertebral Artery Blood Flow Before and After High-Velocity, Low-Amplitude Thrust Therapy. J Am ...http://jaoa.org/article.aspx?articleid=2445311
Sex-Related Differences in Ocular Blood Flow of Healthy Subjects Using Laser Speckle Flowgraphy | IOVS | ARVO Journals
Gender differences in cerebral blood flow velocity and autoregulation between the anterior and posterior circulations in ... a higher blood flow velocity has been reportedly observed in females. Males had lower cerebral blood flow velocity compared ... To measure the MBR on the ONH blood flow and choroidal blood flow, a circle was set around the ONH (A) and the center of a ... To measure the MBR on the ONH blood flow and choroidal blood flow, a circle was set around the ONH (A) and the center of a ...http://iovs.arvojournals.org/article.aspx?articleid=2422123
Evidence for non-Newtonian behavior of intracranial blood flow from Doppler ultrasonography measurements | Springer for...
Doppler ultrasound Non-Newtonian flow Blood viscosity Intracranial hemodynamics Blood rheology Abbreviations. AComA. anterior ... De Verdier MC, Wikström J (2016) Normal ranges and test-retest reproducibility of flow and velocity parameters in intracranial ... 3D blood flow characteristics in the carotid artery bifurcation assessed by flow-sensitive 4D MRI at 3T. Magn Reson Med 61:65- ... Otani T, Ii S, Hirata M, Wada S (2017) Computational study of the non-Newtonian effect of blood on flow stagnation in a coiled ...https://rd.springer.com/article/10.1007%2Fs11517-018-1926-9
The effect of 100% oxygen administration on left anterior descending (LAD) coronary artery blood flow and velocity in patients ... Effect of hyperoxia and vitamin C on coronary blood flow in patients with ischemic heart disease. J Appl Physiol 2007;102(5): ... Pseudobacteremia: false-positive blood cultures from mist tent contamination. Am J Epidemiol 1977;106(2):154-159. ... This has been demonstrated by measuring indices of tidal breathing53 and forced flow at functional residual capacity.55,56 ...http://rc.rcjournal.com/content/57/8/1314
Integrative Laser Medicine and High-Tech Acupuncture at the Medical University of Graz, Austria, Europe
... modulate blood flow velocity in specific brain arteries (STA supratrochlear artery, OA ophthalmic artery, ACA anterior cerebral ... a significant increase in mean blood flow velocity in the STA and OA occurred, whereas the flow velocity in the MCA remained ... In reverse, scheme B led to a significant increase in blood flow velocity in the MCA with nearly unchanged flow profile ... product of mean blood flow velocity and concentration of red blood cells). The measurements described in Figure 12 were ...https://www.hindawi.com/journals/ecam/2012/103109/
PO-0485 Cerebral Blood Flow And Oxygenation Changes Following Blood Transfusion In Preterm Infants | Archives of Disease in...
Methods Pre and post-BT Anterior Cerebral Artery (ACA) peak systolic velocity, mean velocity, resistance index (RI) and ... Conclusion The cerebral blood flow velocity decreased but there was no change in SVC flow volume; cerebral tissue oxygenation ... PO-0485 Cerebral Blood Flow And Oxygenation Changes Following Blood Transfusion In Preterm Infants ... PO-0485 Cerebral Blood Flow And Oxygenation Changes Following Blood Transfusion In Preterm Infants ...http://adc.bmj.com/content/99/Suppl_2/A406.2
CTA cannot determine flow direction and flow velocity, nor can it demonstrate intracranial collateral blood flow. Sensitivity ... anterior cerebral artery (A1 and A2 segments); anterior communicating artery (AcomA); distal internal carotid artery; middle ... the capacity of collateral flow cannot be determined because of CTA's inability to measure flow velocities or flow volumes. We ... Selective MR angiography in the evaluation of intracranial arterial collateral blood flow. J Comput Assist Tomogr 1993;17:178- ...http://www.ajnr.org/content/20/5/791
Head Position in Stroke Trial - Full Text View - ClinicalTrials.gov
Increased mean cerebral blood flow velocity (CBFV) in the lying flat compared to the upright head position [ Time Frame: 24 ... Patients with an acute stroke corresponding to anterior circulation, a CT scan ruling out intracranial hemorrhage, presenting ... The main efficacy outcome of the pilot phase is demonstration of increased mean cerebral blood flow velocity in the flat down ... The main efficacy outcome of the pilot phase is demonstration of increased mean cerebral blood flow velocity (CBFV) in the ...https://clinicaltrials.gov/ct2/show/NCT01706094
Study describes connection between migraines and 'brain freeze' | fox13now.com
Using a transcranial Doppler, the researchers measured the velocity of blood flow through the brain's blood vessels. ... Blood flow increased significantly in the anterior cerebral artery when the volunteers felt pain. This artery feeds the brain's ... One possible reason is the increase in pressure that's associated with the influx of blood flow to the frontal lobe, he said. ... the trigeminal nerve during testing to see if that would eliminate the brain freeze phenomenon or if the increased blood flow ...http://fox13now.com/2012/04/23/study-says-migrane-sufferers-more-prone-to-brain-freeze/