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Previous Volume 346:1413-1414 May 2, 2002 Number 18 Next

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To the Editor: Kim et al. (Dec. 27 issue)¹ acknowledge that their study has several limitations. First, 6 percent of the patients and 16 percent of the coronary segments could not be assessed by magnetic resonance angiography; second, 5 percent of the lesions could not be assessed "because of time constraints," despite a mean scanning time of 70 minutes; third, the sensitivity of magnetic resonance angiography for the detection of coronary stenoses was limited (67 percent for the detection of lesions in the left main coronary artery); and fourth, the imaging protocol was designed to include only the proximal 5 . . . [Full Text of this Article]

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