'Virtual heart' precision-guides defibrillator placement in children with heart disease
The small size and abnormal anatomy of children born with heart defects often force doctors to place lifesaving defibrillators entirely outside the heart, rather than partly inside — a less-than-ideal solution to dangerous heart rhythms that involves a degree of guesstimating and can compromise therapy. Now, by marrying simple MRI images with sophisticated computer analysis, a team of Johns Hopkins researchers says it may be possible to take the guesswork out of the process.
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