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HISTORY OF MAMMOGRAPHY

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Presentation on theme: "HISTORY OF MAMMOGRAPHY"— Presentation transcript:

1 HISTORY OF MAMMOGRAPHY
First proposed in 1924 Article published in 1930 1960’s Robert Egan considered the “Father of Mammography” Also 1960’s Charles Gros developed 1st dedicated Mammo unit (Dose 8-12 rads) 1971 Xeroradiography (Dose 2-4rads)

2 IMPORTANT FACTS ABOUT MAMMOGRAPHY
Mammography is the most sensitive and accurate screening modality available for detecting early breast cancer. It is not always diagnostically specific. It complements but cannot replace regular physical exams and BSE.

3 STATISTICS: Breast Cancer
Most common cancer among women Second leading cause of cancer deaths ACS projects 212,920 new cases for women in 2006 Of these, 40,970 expected to die.

4 STATISTICS One of eight women in the U.S. will develop breast cancer.
Approximately 50% of cancers detected at a screening are impalpable 9% of breast cancers are not detected by Mammography.

5 WHAT ABOUT MEN? An estimated 1720 cases expected in men for 2006.
Approximately 460 men will die.

6 FREQUENCY Age 35 for baseline
National Institutes of Health (NIH) states screening ages every 1-2 years; every year over 50 ACS recommends every year after age 40 Patients with strong family histories should start 10 years prior to age of family member with cancer. Cancer tends to have a rapid growth at this age. Increased incidence of breast CA at this age (40-49). Largest # of breast CA deaths in this age group. #1 CA killer in this age CA typically takes years to grow large enough to be palpable (1cm). Ave CA should be found in 2-4 years before it is palpable.

7 LUMP SIZE Average size lump found by occasional BSE is 2.5cm (1”)
Ave lump found by Mammography is .5 cm (1/4”)(5yr survival 95%) On average, lesions detected by mammography are 8 years old. By 2 cm nodes are involved in 50-60% of the cases. 5 year survival rate is 60%

8 RISK FACTORS MAJOR RISK FACTORS MINOR RISK FACTORS Gender, Age
Personal History of Breast or other CA Family History MINOR RISK FACTORS Hormonal Factors Child-bearing Body Shape/Type Breast Structure Ethinic Origin

9 DOSE 1969 Patient dose 8-12 rads 1971 Xeroradiography introduced
1986 ACR recommends <300mrad per single view with grid view =.15 rads or 150mrads Dental = 400 mrad CA Therapy =500 rads

10 COMPARISON OF DOSE TO DAILY LIFE
The risk of death from developing breast cancer due to radiation received from a single mammographic examination is equal to the risk of: Traveling 80 miles by air Traveling 10 miles by car Smoking 1/8 of one cigarette 11/2 minutes of mountain climbing 3 minutes of being a man age 60 Eating 40 TBSP peanut butter

11 EXPERIENCE INITIAL CONTINUING
Certification or 40 hours of Mammography training. 25 supervised exams CONTINUING 15 CE every triennium 100 exams every year

12 REWARD Relaxed environment One on one patient contact Saving lives
No call or weekends

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22 Collapsed Envelope

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26 11.5 Palpable Giant Fibroadenoma

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30 LYMPHOMA

31 ARCHITECTURAL DISTORTION LATE STAGE PALPABLE CA

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36 INSPISSATED DEBRIS AND DUCT ECTASIA

37 POST SURGICAL

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