The presence and extent of bronchiectasis has been effectively shown using high-resolution CT (HRCT). However, a study conducted by the Vancouver General Hospital’s department of Radiology in Vancouver, B.C., Canada that included 61 patients diagnosed with bronchiectasis has found that the used of helical high-resolution multidetector CT (MDCT) with one millimeter collimation proves to be better than HRCT. In the study, seven patients had positive MDCT scans with only two having positive HRCT scans with MDCT detecting bronchiectasis in 202 lobes compared to 162 lobes with HRCT.
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