958145.fig.001a
(a)
958145.fig.001b
(b)
Figure 1: (a) An ultrasonographic measurement of the brachial artery with a special probe holder (MP-PH0001®, Hitachi-Aloka Medical Ltd., Tokyo, Japan). (b) Hemodynamic data obtained by ultrasonography. The left image shows the vessel image and position of the tracking gate of the brachial artery. The right image shows the changes in vessel diameter, Doppler flow, and blood flow velocity determined by an automated edge detection device and computer analysis software (e-tracking system®, Hitachi-Aloka Medical Ltd., Tokyo, Japan).