Neurosonology:神経超音波医学
Print ISSN : 0917-074X
ISSN-L : 0917-074X
新生児脳血流パワーフロードプラ4次元再構成像で認める拍動強度についてのウェーブレット変換による解析
林 隆木戸 久美子門屋 亮山村 泰一大淵 典子古賀 寛史吉冨 友美深野 玲司長谷川 恵子
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2004 年 17 巻 1 号 p. 18-23

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Four-dimensional reconstructions of power flow Doppler images disclosed the differences in pulsatility patterns between normal neonates and neonates with asphyxia. The differences could not be explained by conventional quantative analysis, including blood velocity, resistance index and pulsatility index. There was a minor difference in pulsatility patterns by four-dimensional analysis of PF between two normal neonates. Wavelet analysis disclosed a difference between the two neonates in signal intensity at levels 5 and 6 by use of the Gabor 8 function. There was a positive correlation between the signal intensity in end-diastolic phase at levels 5 and 6 by Gabor 8 and the intensity of the pulsatility patterns in four-dimensional analysis. There were strong bands at levels 5 and 6 in twelve normal neonates, but weak bands in four neonates with asphyxia.

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© 2004 日本脳神経超音波学会
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