mammography presentation

Download Mammography presentation

Post on 01-Dec-2014

8.937 views

Category:

Education

0 download

Embed Size (px)

DESCRIPTION

 

TRANSCRIPT

  • 1. Mammography Past & Present Similar equipments were & are still being used, these can be called as old fashioned equipments cone Tube Breast Stand
  • 2. Mammography In digital mammography screen-film system has been replaced by Detectors to give the digital images
  • 3. Mammography Present & future CCD camera Work station Equipments look like this
  • 4. Mammogram These digital mammograms are surely better in resolution & details
  • 5.
    • Standard views:
    • 45* Medio lateral Oblique (MLO view)/ Lundgrens view
    • Craniocaudal view (CC view)
    Left Craniocaudal Right Craniocaudal Right Mediolateral Oblique Left Mediolateral Oblique RCC RMLO LCC LMLO
  • 6. LAT Left Axillary Tail LCV Left Cleavage LFB Left From Below LLMO Left Lateromedial Oblique LML Let Mediolateral LRL Left Roll Lateral LRM Left Roll Medial LLM Left Lateromedial
  • 7.
    • Extended CC view / Cleopatras view
    • Extended CC view- medial or lateral rotation
    • True Lateral view
    • Axillary view
    • Cleavage view
    • Paddle compression view
    • Magnification view
    • Eklund view (for breast implants)
  • 8.
  • 9.
  • 10.
    • Extended CC view medially rotated
    • Extended CC view laterally rotated
  • 11.
  • 12.
    • Magnification view
  • 13.
  • 14.
    • CONVENTIONAL CC VIEW
    • EKLUND CC VIEW
  • 15.
  • 16.
  • 17. cost issues
    • Digital mammography is expensive!
    • Using digital technology in all women would cost >$300,000 per QALY gained
    • Targeted use of digital mammography on basis of age/breast density costs ~$50,000 per QALY gained
  • 18. Computer-Aided Detection
    • Software program that highlights areas of concern on digital mammograms
    • Uses image processing algorithms and decision threshold parameters to detect features in an image likely to be of clinical significance
    • Very sensitive detects 90% of all cancers
    • However, has a high rate of false positives (2-4 per study)
  • 19. http://www.imagingeconomics.com/issues/articles/2005-12_04.asp
  • 20. Courtesy: MIAS digital mammogram database
  • 21. Instant Upgrade
    • Improved signal-to-noise ratio
    • Ability to magnify, change contrast, or alter the brightness.
    • Near instantaneous image acquisition
  • 22. Courtesy: Magee-Womens Hospital of UPMC Digital versus Conventional
  • 23. Digital Mammographic Imaging Screening Trial (DMIST)
    • Retrospective study of 49,500 asymptomatic women
    • Assessed accuracy of digital vs film mammograms
    • RESULTS:
    • Digital mammography significantly more accurate in pre- and perimenopausal women under 50 with dense breasts
    • Nonsignificant trend toward improved accuracy with film mammograms in women over 65 with fatty breasts
  • 24. A Brief History
    • 1913 Albert Salomon, German surgeon
    • 1950s - Jacob Gershon-Cohen began to advocate widespread use of X-rays for screening
    • December 2005 RSNA brings digital mammography to US
  • 25. Thank you Talk about this session with your friends. It will add to your knowledge [email_address]