Technologists and Screening Mammography

  • July 28, 2017
  • Blog
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The vital role of technologists  in mammography screening Among the many features that manipulate the performance of radiologists, the role of technologists has never been emphasized adequately. Keeping this fact in mind, Louise Henderson and contemporaries from the University of North Carolina US, found a statistically vital effect from the technologists on the following:

  1. Rate of recollection
  2. Receptiveness 
  3. Precision
  4. Scale of detection of malignancy

The Henderson affiliates did this for both film-screen and digital exams. On the subject of positive predictive value (PPV), they discovered inconsistency by technologist for film-screen but not digital ammography. The Henderson group is looking forward to  make out which exacting technologist distinctiveness affects the  analytical functioning of the radiologists.

Henderson’s affiliates used Carolina Mammography Registry information from 1,003,276 screening mammograms obtained between 1994 and 2009 at 59 facilities. The mammograms were carried out by 356 mammography technologists and deciphered by 372 radiologists; The investigators estimated the following measures:

  • Rate of recollection
  • Receptiveness
  • Precision
  • Rate of detection of malignancy
  • Positive predictive value 

They matched up theirs to the malignancy results gathered from the State cancer registry and pathology reports.343 out of the 356 technologists, carried out film-screen exams, 51 did digital exams, and 38 conducted both. A sum of 4,328 malignancies were testified for film-screen mammography and 564 malignancies for digital. The average number of screening mammograms for each year was 650.5 for technologists conducting film-screen exams, 872 for digital exams, and 658 for both film-screen and digital exams.

Also one more study estimated the capability of technologists to categorize screening mammograms appropriately as negative or necessitating additional follow-up. On the whole, there was 82% agreement between technologists and radiologist. According to the outcomes,  technologists were receptive but not precise as regards the breast characteristics and variations that could result in bringing to mind.

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