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Table 1 Characteristics of 49 lesions in 48 patients from a total of 82 MBI studies

From: Half-time Tc-99m sestamibi imaging with a direct conversion molecular breast imaging system

Lesion histopathology Number of lesions (% of 49 total lesions)
Malignant lesions 33 (67)
  Invasive ductal carcinoma 23 (47)
  Invasive lobular carcinoma 3 (6)
  Mixed invasive ductal/lobular 1 (2)
  Ductal carcinoma in situ 4 (8)
  Mucinous carcinoma 1 (2)
  Tubular carcinoma 1 (2)
Benign lesions 16 (33)
  Atypia or LCIS 2 (4)
  Benign axillary or intramammary lymph node 3 (6)
  Fibroadenoma 3 (6)
  Papilloma 2 (4)
  Benign breast parenchyma/fibrocystic changes 6 (12)
Lesion size and intensity category  
   10 mm and mild intensity 13 (27)
   10 mm and moderate intensity 4 (8)
   10 mm and marked intensity 0
  > 10 mm and mild intensity 5 (10)
  > 10 mm and moderate intensity 17 (35)
  > 10 mm and marked intensity 10 (20)
  1. Numbers in parentheses are percentages and percentages are rounded. All patients had a single lesion diagnosed, except for one patient who had a single benign lesion in each breast. Lesion size was the greatest dimension of lesion measured on MBI. Both lesion size and lesion intensity listed were based on a clinically-interpreted MBI report of 10-min-per-view acquisition and used to guide appropriate selection for the reader study.