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[A comparative study of HRCT and digital subtraction bronchography of bronchiectasis]
1Department of Radiology, Affiliated Hospital of Xiangya, Hunan Medical University, Changsha 410008.
Objective:
To assess the value of HRCT in the diagnosis of bronchiectasis at segmental level.
Methods:
29 cases (522 segments) with bronchiectasis doubted by clinical evaluation were selected and HRCT scan and digital subtraction bronchography (DSB) were performed.
Results:
HRCT and DSB showed a good identity in the diagnosis of bronchiectasis. Of 92 segments diagnosed as bronchiectasis in HRCT, 84 were agreed with DSB; Of 430 segments diagnosed as no bronchiectasis by HRCT, 425 were agreed with DSB. Sensitivity of HRCT is 94%, specificity is 98%. The main HRCT findings were cylindric and cystic bronchiectasis.
Conclusions:
HRCT is superior to bronchography for bronchiectasis. It is the first choice of the image diagnostic modalities for the patients in whom bronchiectasis is suspected.