Lay the patient on his back on a firm surface and kneel beside his chest . place the heel of your hand on the sternum of his chest . the other hand should be placed on the top of that hand 让病者仰卧在硬地上，跪在他胸侧，把手掌跟放在他胸骨下半部之上，另一手掌叠放在先前掌上，手指交差扣紧，双臂伸直，以垂直方向将胸骨下半部压下4至5公分，然后放松。
The other hand should be placed on the top of that hand . the fingers of both hands should interlock tightly . both arms should be straight . press down the sternum 4 to 5 cm vertically and then relax 让病者仰卧在硬地上，跪在他胸侧，把手掌跟放在他胸骨下半部之上，另一手掌叠放在先前掌上，手指交差扣紧，双臂伸直，以垂直方向将胸骨下半部压下4至5公分，然后放松。
Clinical expression is it is difficult to swallow , after the breastbone when taking food feeling of unwell , attrition , small painful or the eyewinker stays feeling , deglutition is aching , angular reach cachexia to wait , one part patient can appear constipation 临床表现为咽下困难，进食时胸骨后不适、摩擦感、微痛或异物停留感，吞咽疼痛，消瘦及恶病质等，一部分病人可出现便秘。
This data acquisition can scan from any position and orientation freely , which not only can get data from the best acoustic windows by reducing the obstruction of the rib and the sternum , but also can combine the data from multiple acoustic windows 此方法可从任意位置和角度进行扫描，从而，不但可以最大限度地减少肋骨和胸骨的影响而获得最佳的扫描窗口，而且可以从多个声学窗口合成数据。
