Margaret A.WinkerMD, Deputy EditorIndividualAuthorPhil B.FontanarosaMD, Interim CoeditorIndividualAuthor
To the Editor: Drs Siegel and Evens1 note that electron beam computed tomography (EBCT)
is being used to diagnose atherosclerosis. However, their statement, "At best,
however, there is only a moderate correlation between the quantity of calcification
and the presence of stenosis and its severity," is incorrect. The reference
for this statement is Fiorino's review of EBCT and coronary calcium.2 However, the correlation of coronary calcium with
angiographic stenosis is substantial in studies of EBCT,3-5
with r values ranging from 0.85 to 0.96 (P<.001 for both values).
Oudiz RJ. Electron Beam Computed Tomography to Detect Coronary Artery Disease. JAMA. 1999;282(15):1422–1423. doi:10-1001/pubs.JAMA-ISSN-0098-7484-282-15-jac90009
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