Slideshow: Shock Waves Can Save Hearts

Scientists in Japan blast patients in the chest to restore blood flow to cardiac muscle without lifting a scalpel. By Aria Pearson.
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Images of a human heart showing increased blood flow after treatment with shock wave therapy. Left: Vertical view. The black areas represent blood flow. Right: Bulls eye view starting from the bottom of the heart and looking up. Blue and green represent regions of low flow; yellow and red show high flow.Image: Hiroaki Shimokawa

See related story: Shock Waves Can Save Hearts

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A new shock wave device, built especially for use on the heart.

Photo: Storz Medical