Mück-Weymann M E, Leppek R, Albrecht H P, Hornstein O P, Klose K J, Bauer R D
Klinik für Dermatologie, Universität Erlangen-Nürnberg.
Bildgebung. 1995 Jun;62(2):132-7.
In the study presented, color-coded duplex sonography (CCDS) and laser Doppler flux (LDF) signals from finger tips of 7 healthy individuals were recorded simultaneously. The aim of the study was to examine whether or not the results of a functional test ('deep inspiration') could also be observed with an ultrasonic Doppler. In the literature this test is known to provoke notable blood flow characteristics of the LDF ('inspiratory gasp'), a phenomenon which is caused by a sympathetically mediated vasoconstriction of acral vessels. With regard to the penetration depth of the LDF in skin it was of further interest to determine the distance between the surface of the skin and the vessels found near the surface. We found for CCDS parameters (color pixels/image; time-averaged flow velocity [TAV]; resistance index [RI]) as well as for LDF (flux [taLDF]) significant changes before versus after 'deep inspiration'. CCDS is a new diagnostic tool to visualize also very small vessels down to 0.2 mm, e.g. in finger tips. It should be evaluated which role this method may play in combination with functional tests in diagnostic handling, e.g. of patients with polyneuropathies or collagenoses.
在本研究中，同时记录了7名健康个体指尖的彩色编码双功超声（CCDS）和激光多普勒血流（LDF）信号。本研究的目的是检验超声多普勒是否也能观察到功能测试（“深吸气”）的结果。在文献中，已知该测试会引发LDF显著的血流特征（“吸气喘息”），这一现象是由交感神经介导的肢体血管收缩引起的。鉴于LDF在皮肤中的穿透深度，确定皮肤表面与皮肤表面附近发现的血管之间的距离更具意义。我们发现，对于CCDS参数（彩色像素/图像；时间平均流速[TAV]；阻力指数[RI]）以及LDF（血流[taLDF]），“深吸气”前后有显著变化。CCDS是一种新的诊断工具，可用于可视化小至0.2mm的非常小的血管，例如在指尖。应该评估这种方法在与功能测试联合用于诊断处理（例如在患有多发性神经病或胶原病的患者中）时可能发挥的作用。
