Once again, new information about CT scans of the heart muddies the waters on the procedure, its effectiveness and its role in detecting heart disease. An article just published in the New England Journal of Medicine demonstrated that measuring the amount of calcium in coronary arteries using a heart CT scan is a sensitive predictor of heart attacks in men and women of all ethnic groups (blacks, Hispanics, Asians and whites), irrespective of age.

The authors suggest that this simple no ...

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