du Boulay G H, Brunt J, Colchester A, Hawkes D, Wallis A, Wicks D
Institute of Neurorology, National Hospital, London, England.
Acta Radiol Suppl. 1986;369:59-62.
The validation, by phantom experiments, of a method of measuring volumetric, pulsatile blood flow in vessels of about 4 mm calibre is described. 'Instantaneous' as well as integrated flow is obtained from cine angiograms by digitisation of the images and densitometric analysis in an advanced computer vision analysis system. From 48 frames per second cine, pulsatile flow at any moment between 0 and about 400 ml/min was calculated within about 10 per cent of the electromagnetic flow meter reading. Further improvement is expected. It is proposed to advance to 3D and have the methodology available for clinical use in due course.
本文描述了通过体模实验对一种测量口径约4毫米血管中体积搏动性血流方法的验证。通过在先进的计算机视觉分析系统中对图像进行数字化和光密度分析，从电影血管造影片中获得“瞬时”血流以及积分血流。从每秒48帧的电影中，在电磁流量计读数的约10%范围内计算出0至约400毫升/分钟之间任何时刻的搏动性血流。预计会有进一步的改进。建议推进到三维，并在适当的时候将该方法用于临床。
