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New York University
Imaging could show which cold or injured hands will recover
Imaging could show which cold or injured hands will recover

The glow on the screen was unmistakable. It showed a green dye injected into Jim Harrington's bloodstream flowing through the vessels in his right hand, signaling success for the surgery to reattach his thumb, nearly severed in a car accident. It was a relief for Harrington, whose left hand was disabled earlier from a stroke, and for doctors, who felt confident enough in the tissue's health that they discharged him after one night in the hospital. "I told the doctors I really needed to keep this thumb," said the 51-year-old from Milton, Del. "I'm not a doctor, but even I could see right away there was blood flow." Doctors have used the real-time dye...

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