It is described a filter (300) for at least partially compensating for an X-ray tube (10) the target Angle heel effect and preserving the tungsten spectrum of the X-rays.

本发明公开了过滤器(300)，其用于至少部分补偿X射线管(10)的靶角度足跟效应并保持X射线的钨光谱。

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But Harvard orthopedic surgeon George Theodore, who helped conduct the Dornier study, claims that the failed studies are flawed because they used low-energy shock-wave pulses that were below the threshold needed to have a heel-healing effect, unlike the successful FDA studies that used higher energies.

FORBES: The Big Hurt

German surgeon Michael Haake, who led the BMJ study, argues that the apparent benefits of the heel procedure are nothing more than a placebo effect.

FORBES: The Big Hurt