Recalled noncalcified lesions: ultrasound vs. ultrasound plus mammography

Leesburg, VA, December 15, 2021—According to an article in ARRS’ American Journal of Roentgenology (AJR), radiologists should consider performing ultrasound (US) first for digital breast tomosynthesis (DBT)-recalled noncalcified masses.

“Omitting diagnostic mammography when US is negative has a low false-negative rate,” wrote lead researcher Jessica H. Porembka from the University of Texas Southwestern Medical Center in Dallas. Noting that US alone is effective in diagnosing noncalcified masses recalled on screening tomosynthesis, “for asymmetries,” she explained further, “diagnostic mammography may be best without the need for additional US, while architectural distortions still warrant diagnostic mammography and US.”

Per the protocol of Porembka et. al’s HIPAA-compliant, IRB–approved prospective study, 399 women (mean age, 60 years) recalled for noncalcified lesions from screening DBT underwent initial diagnostic US from July 2017 to June 2019. Imaging decisions—determined via BI-RADS assessments and management recommendations, biopsy outcomes, and follow-up—were recorded using case reports filed on the day of the diagnostic evaluation.

Ultrasound alone without mammography adequately completed the diagnostic evaluation of 71.2% (306/430) of noncalcified lesions recalled from screening tomosynthesis, 93.7% (178/190) of recalled masses, and diagnosed 92.1% (35/38) of cancers, yielding a sensitivity of 94.9% for cancer diagnosis.

“A large number of screening tomosynthesis–detected noncalcified masses may be further evaluated with ultrasound alone, without compromising diagnostic sensitivity,” the authors of this AJR article reiterated.

An electronic supplement to this AJR article is available here.

Founded in 1900, the American Roentgen Ray Society (ARRS) is the first and oldest radiological society in North America, dedicated to the advancement of medicine through the profession of radiology and its allied sciences. An international forum for progress in medical imaging since the discovery of the x-ray, ARRS maintains its mission of improving health through a community committed to advancing knowledge and skills with an annual scientific meeting, monthly publication of the peer-reviewed American Journal of Roentgenology (AJR), quarterly issues of InPractice magazine, AJR Live Webinars and Podcasts, topical symposia, print and online educational materials, as well as awarding scholarships via The Roentgen Fund®.

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