Magnetic Resonance Imaging in Women Recently Diagnosed With Unilateral Breast Cancer

OBJECTIVES:

- Determine the diagnostic yield of magnetic resonance imaging (MRI) in evaluating the
contralateral breast of women with a recent unilateral diagnosis of breast cancer and a
negative contralateral mammogram and clinical breast exam.

- Determine the sensitivity, specificity, positive predictive value for both call backs
for additional imaging and biopsy recommendations, and receiver operating characteristic
curves of MRI in evaluating these patients.

- Determine the effect of the following patient-related factors: age (50 years old and
over vs less than 50 years old), breast parenchymal density (fatty vs non fatty breast),
and tumor histology (invasive lobular vs invasive ductal, invasive vs in situ) on the
performance of MRI (cancer yield, sensitivity, specificity, and PPV).

OUTLINE: This is a multicenter study.

Patients receive gadopentetate dimeglumine IV and then undergo magnetic resonance imaging of
the contralateral breast.

Patients are followed at 12-18 and 24-30 months.

PROJECTED ACCRUAL: A total of 1,000 patients will be accrued for this study.

DISEASE CHARACTERISTICS:

- Recently confirmed unilateral ductal carcinoma in situ or invasive cancer of the
breast

- Confirmed by biopsy or fine needle aspiration (FNA) within the past 60 days

- Negative or benign mammogram (BI-RADS assessment 1 or 2) and negative or benign
clinical breast exam of the contralateral breast within the past 90 days

- Prior biopsy of the contralateral breast (including FNA) is allowed provided it was
performed at least 6 months prior to study entry

- Prior magnetic resonance exam of the contralateral breast is allowed provided it was
performed at least 1 year prior to study entry

- No remote history of breast cancer

- No new breast symptoms within the past 60 days for which further evaluation is
recommended

- Hormone receptor status:

- Not specified

PATIENT CHARACTERISTICS:

Age

- 18 and over

Sex

- Female

Menopausal status

- Not specified

Performance status

- Not specified

Life expectancy

- Not specified

Hematopoietic

- Not specified

Hepatic

- Not specified

Renal

- Not specified

Cardiovascular

- No pacemaker

- No magnetic aneurysm clips

Other

- Not pregnant

- No implanted magnetic device

- No severe claustrophobia

- No other contraindications to MRI

- No psychiatric, psychological, or other condition that would preclude informed consent

PRIOR CONCURRENT THERAPY:

Biologic therapy

- Not specified

Chemotherapy

- At least 6 months since prior anticancer chemotherapy

Endocrine therapy

- No concurrent therapeutic hormonal therapy, tamoxifen, or aromatase inhibitors
(preventive therapy allowed)

Radiotherapy

- Not specified

Surgery

- Not specified