Hashimoto K, Ando M, Kida Y, Takeuchi Y
Division of Neonatology, Matsudo Municipal Hospital, Chiba.
No To Hattatsu. 1991 Jul;23(4):401-4.
The changes of cerebral blood flow velocity (CBFV) and pulsatility index (PI) in anterior cerebral artery were examined by cranial color Doppler ultrasonography while a patient recovered from hypocarbia. As arterial PCO2 was elevated, PI was decreased and color imaging of CBF from basilar artery to anterior cerebral artery were improved in sagittal view. Hypocarbia is considered to induce the constriction of the cerebral vessels and the decrease of CBF in premature infants.
在一名患者从低碳酸血症恢复过程中，采用经颅彩色多普勒超声检查大脑前动脉的脑血流速度（CBFV）和搏动指数（PI）变化。随着动脉血二氧化碳分压升高，PI降低，矢状面从基底动脉到大脑前动脉的CBF彩色成像得到改善。低碳酸血症被认为可导致早产儿脑血管收缩和CBF降低。
