Breast findings incidentally detected on body MRI

Abstract

ObjectivesTo evaluate breast findings incidentally detected on body MRI.MethodsA retrospective review of the institutional database identified 1752 body MRI performed between January 2015 and September 2015. MRI of women with breast tissue visible in the field-of-view were reviewed for breast findings. Breast findings were classified with the breast imaging reporting and data system (BI-RADS) lexicon. The standard statistic, costs of additional work-up, and the clinical relevance were used to describe breast findings, and we calculated 95 % exact confidence intervals (CIs).Results440 body MRI of 440 women (mean age: 57 ± 20 years) included breast tissue in the field-of-view. A total of 41 breast findings were identified in 41 patients. Breast findings were classified BI-RADS 2 N = 25, BI-RADS 3 N = 13, BI-RADS 4 N = 3. A total of 3.6 % [95 % CI 1.6 %, 5.6 %] women with breast tissue visible on MRI had a recommendation for further imaging work-up for a breast finding. The 18.7 % (3 of 16) of these patients had a clinically important finding (breast cancer). Further imaging evaluation increased costs of €108.3 per patient with a breast finding.ConclusionsClinically important breast findings could be detected on body MRI in up to 0.7 % (3 of 440) of women.

Check the chest: review of chest findings on abdominal MRI

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“…The rate of breast incidental findings on computerized tomography has been well documented, with subsequent cancer diagnosis averaging 42% 4 . However, data on breast incidental findings on abdominal and chest MRI (MRI‐AC) are limited with significant heterogeneity in prior results 5‐7 …”

“…4 However, data on breast incidental findings on abdominal and chest MRI (MRI-AC) are limited with significant heterogeneity in prior results. [5][6][7] Our goal was to evaluate the frequency of breast incidental findings on MRI-AC, document radiologist recommendations for follow-up diagnostic breast imaging, assess the rate of compliance with follow-up, and identify factors associated with improved follow-up.…”

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“…While screening mammography rates are falling, an increasing number of low dose chest CTs, abdomino-pelvic MRIs, and 18-FDG-PET-CTs are being performed each year for diseases of the chest not related to the breast tissue itself [ 31 , 50 – 53 ]. Multiple studies have shown this widespread use of imaging modalities to have led to an ever-increasing rate of incidental breast lesion discovery [ 31 , 52 , 53 ].…”