Pál A, Ulrich G, Manfred H
Szent-Györgyi Albert Orvostudományi Egyetem, Szeged, Szülészeti és Nögyógyászati Klinika.
Orv Hetil. 1991 Aug 18;132(33):1815-7.
Medial cerebral artery blood flow velocity waveforms were examined by pulsed Doppler ultrasound between the 28th and 41st week of pregnancy. It has been found that the vessel showed an increased resistance at the beginning of the third trimester, which significantly decreased till term. In intrauterin hypoxia the diastolic component of the blood flow velocity waveform of medial cerebral artery becomes stronger, marking the centralisation of the circulation. By their opinion the examination of the blood flow in the medial cerebral artery would be an effective additional possibility of the other intrauterine diagnostic methods (both the positive and the negative predictive value were higher than 90%) for the notifying the post-partal condition of the fetus.
在妊娠第28周至41周期间，通过脉冲多普勒超声检查大脑中动脉血流速度波形。研究发现，该血管在妊娠晚期开始时阻力增加，直至足月时显著降低。在宫内缺氧时，大脑中动脉血流速度波形的舒张成分变强，标志着循环的集中化。他们认为，检查大脑中动脉的血流将是告知胎儿产后状况的另一种宫内诊断方法的有效补充手段（阳性和阴性预测值均高于90%）。
