الفهرس 
Anatomy of the breast. ....Only 14 pages are availabe for public view
 |  | from | 16 |  |  |
| | | from | 16 | | |
Abstract
Conventional imaging modalities as mammography and
ultrasound remain the method of choice for routine screening
programs and is the 1
st
imaging aid, but conventional assessment
have well-known limitations, such as inaccurate differentiation
between benign and malignant lesions and estimation of the size
of malignant tumors.
Screening with annual MRI combined with mammography
has the potential to be effectively implemented into an organized
breast screening program for women at high risk for breast
cancer. This is due to the high negative predictive value of the
breast MRI which is 99.8%.
Also the sensitivity of breast MRI for the detection of
cancer is the greatest of all imaging techniques and when the
findings of conventional imaging are inconclusive (i.e. BI-RADS
0), MRI can be used as a problem-solving modality, it is also
better at identifying the true extent of cancer when multifocal
disease or ductal carcinoma in situ is present.
MRI sensitivity for DCIS detection increases from 80% for
low grade to 98% for high grade.
So we need to embrace breast MRI screening, and offer it
to our patients who are currently eligible as it is inarguably the
best available screening test.
Summary and Conclusion Generally speaking breast MRI is highly effective in
detection and characterization of occult breast lesions in high risk
population, with excellent sensitivity and high specificity. This is
attributed to the advance in equipment, technique, development
and implementation of interpretation guidelines and development
of functional MRI tools which contributed to the improving
validity of this modality. Also the superiority of MRI compared to
mammography, which is more evident in high risk population,
supports the use of MRI as an important tool in screening of
asymptomatic high risk women.