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Breast MRI is not recommended for screening all breast cancer patients, yet limited to patients with high risk of developing breast cancer that may have high familial risk or mutations in BCRA1/2 genes. [51] Breast MRI is not a perfect tool despite its increased sensitivity for detecting breast cancer masses when compared to mammography.
Basically, an annual mammogram screening is not as sensitive at detecting breast cancer as Magnetic Resonance Imaging, or MRI. However, an MRI is a lengthier and more expensive screening.
MRI of the breasts has the highest sensitivity to detect breast cancer when compared with other imaging modalities such as breast ultrasound or mammography. In the screening for breast cancer for high-risk women, sensitivity of MRI ranges from 83 to 94% while specificity (the confidence that a lesion is cancerous and not a false positive ...
The number of CT scanners increased from 198 to 465 and MRI scanners increased from 19 to 266 (more than tenfold) between 1990 and 2009. Similarly, the number of CT exams increased by 58% and MRI exams increased by 100% between 2003 and 2009.
For women at high risk, NCCN recommends undergoing an annual mammogram and breast MRI between the ages of 25 and 40, considering the specific gene mutation type or the youngest age of breast cancer occurrence in the family. Additionally, NCCN suggests that high-risk women undergo clinical breast exams every 6 to 12 months starting at age 25.
Breast MRI is a technology typically reserved for high-risk patients and patients recently diagnosed with breast cancer. [3] Lastly, scintimammography is used in a subgroup of patients who have abnormal mammograms or whose screening is not reliable on the basis of using traditional mammography or ultrasound.
While many screening tests (such as the fecal occult blood test or PSA test) are non-invasive, it is important to note that mammography (breast cancer screening) involves ionizing radiation exposure. [10] The breast is highly radiation sensitive, and it receives an approximate dose of 2.6 milligrays per mammography screening. [11]
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