PT  - JOURNAL ARTICLE
AU  - H Saitoh
AU  - K Hayakawa
AU  - K Nishimura
AU  - Y Okuno
AU  - C Murayama
AU  - T Miyazawa
AU  - B F Zieroth
AU  - Y Shimizu
TI  - Intracarotid blood pressure changes during contrast medium injection.
DP  - 1996 Jan 01
TA  - American Journal of Neuroradiology
PG  - 51--54
VI  - 17
IP  - 1
4099  - http://www.ajnr.org/content/17/1/51.short
4100  - http://www.ajnr.org/content/17/1/51.full
SO  - Am. J. Neuroradiol.1996 Jan 01; 17
AB  - PURPOSE To investigate changes in blood pressure during intracarotid injection of contrast material.METHODS Two catheters were inserted into the ipsilateral common carotid artery of dogs. The proximal catheter was used for injection of contrast material and the other was positioned distally to monitor blood pressure.RESULTS Distal intracarotid pressure rose significantly during injection of contrast material at all rates (5, 7, and 10 mL/s) and at all doses (0.2, 0.5, 0.7, and 1.0 mL/kg). In addition, these blood pressure elevations were shown to be correlated with injection rates and doses. Even when the pressure-monitoring coaxial catheter was advanced into smaller arteries, no decline in the impact of injection was observed.CONCLUSION Intracarotid injection of contrast material causes a temporal elevation of cerebral blood pressure in dogs.