Does large beam-steered angle velocity compounding using plane wave transmission improve blood vector velocity estimation in a 3D carotid artery flow field?

Author(s):  
Anne E.C.M. Saris ◽  
Hendrik H.G. Hansen ◽  
Stein Fekkes ◽  
Maartje M. Nillesen ◽  
Marcel C.M. Rutten ◽  
...  
Author(s):  
Anne E. C. M. Saris ◽  
Hendrik H. G. Hansen ◽  
Stein Fekkes ◽  
Maartje M. Nillesen ◽  
Marcel C. M. Rutten ◽  
...  

Stroke ◽  
2006 ◽  
Vol 37 (10) ◽  
pp. 2552-2556 ◽  
Author(s):  
Kozo Hirata ◽  
Toshio Yaginuma ◽  
Michael F. O’Rourke ◽  
Masanobu Kawakami

2005 ◽  
Vol 25 (2) ◽  
pp. 392-398 ◽  
Author(s):  
Markus Juonala ◽  
Jorma S.A. Viikari ◽  
Mika Kähönen ◽  
Leena Taittonen ◽  
Tapani Rönnemaa ◽  
...  

1988 ◽  
Vol 16 (5-6) ◽  
pp. 405-409 ◽  
Author(s):  
Shimon Degani ◽  
Joav Paltiely ◽  
Reuven Lewinsky ◽  
Israel Shapiro ◽  
Mordechai Sharf

2004 ◽  
Vol 40 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Enrique Criado ◽  
Manuel Doblas ◽  
Juan Fontcuberta ◽  
Antonio Orgaz ◽  
Angel Flores ◽  
...  

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Giuseppe Ristagno ◽  
Jun H Cho ◽  
Tao Yu ◽  
Shijie Sun ◽  
Max H Weil ◽  
...  

Introduction. We have previously reported that selective head cooling initiated during CPR prevented increases in brain temperature and improved neurological outcome. In the present study, we explored the relationship between head cooling during CPR and cerebral blood flows. We hypothesized that head cooling during CPR would yield carotid artery dilation with consequent increases in carotid flows and cerebral cortical microcirculation. Methods. Eight pigs weighing 37 ± 1 kg were intubated and mechanically ventilated. The common carotid artery was isolated and a parietal craniotomy was created. Ventricular fibrillation was electrically induced and untreated for 4 min. Animals were then randomized to head cooling or control. Head cooling was initiated with the aid of the RinoChill device (BeneChill Inc) at the beginning of CPR. CPR was performed for 4 min prior to defibrillation. Common carotid artery diameter and flow were assessed with a Doppler transducer. Cerebral cortical capillary density, representing the number of perfused capillaries, was assessed with Sidestream Dark Field imaging (MicroVisionMedical Inc). Brain temperature was measured with a needle sensor inserted in the cerebral cortex. Results. All the animals were resuscitated. After resuscitation, the brain temperature was significantly decreased in animals subjected to head cooling. Significantly greater carotid artery diameters and flows were observed in animals subjected to selective head cooling compared to the control animals. These increases in carotid blood flows were accompanied by significantly greater numbers of perfused capillaries in the cerebral cortices. No differences in cardiac output were observed between the two groups (Table ). Conclusion. Early selective head cooling induces carotid artery dilation and increases in carotid flows and cerebral cortical microcirculation after resuscitation.


Sign in / Sign up

Export Citation Format

Share Document