Accuracy of the Mammographic Report Category according to BIRADSTM
Siriporn Hirunpat, MD*, Wiwatana Tanomkiat, MD*, Rungrat Khojarern, MD*, Nualta Arpakupakul, MSc, MA**
Affiliation : * Department of Radiology, Faculty of Medicine, Prince of Songklanagarind Hospital University ** Epidemiology Unit, Prince of Songklanagarind Hospital University
Objective : To determine the accuracy and predictive value of the mammographic report according to the
BIRADS categories in Songklanagarind University Hospital.
Materials and Methods : Mammograms of 1000 women who came to Songklanagarind University Hospital
from June 1998 to September 1999 were reported and placed in category 1 for negative results, category 2
for benign lesions, category 3 for probably benign lesions, category 4 for suspicious lesions and category 5
for highly suspicious lesions. Accuracy was determined by either histology or by unchanged follow-up
mammography within 24 months.
Results : The total accuracy was 97.8%, sensitivity 62.5% and specificity 98.1%.
Keywords : Mammographic, Breast cancer, BIRADS
