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17.08.2017 | Breast Oncology | Ausgabe 12/2017

Annals of Surgical Oncology 12/2017

Adjunctive Breast-Specific Gamma Imaging for Detecting Cancer in Women with Calcifications at Mammography

Zeitschrift:
Annals of Surgical Oncology > Ausgabe 12/2017
Autoren:
MD, PhD Hyun Woo Chung, MD, PhD Young So, MD, PhD Jung-Hyun Yang, MD, PhD Kyoung Sik Park, MD, PhD Young Bum Yoo, MD, PhD Nami Choi, MD Mi Young Kim, PhD Jayoun Kim, MD, PhD Eun Jeong Lee

Abstract

Background

Mammography detects calcium deposits sensitively, but the specificity for differentiating malignancy from benign calcifications is low. Thus, we investigated whether adjunctive breast-specific gamma imaging (BSGI) has incremental value for detecting cancer in women with suspicious calcifications detected by mammography, and compared BSGI with adjunctive ultrasonography (US).

Methods

The medical records of women without a personal history of breast cancer who underwent mammography for breast evaluation from 2009 to 2014 were reviewed retrospectively. Patients who had calcifications detected by mammography, with a result of Breast Imaging Reporting and Data System (BI-RADS) categories 3–5, underwent adjunctive US and BSGI and were included in this study. A total of 302 breast lesions in 266 women (mean age ± standard deviation 49 ± 9 years) were selected for this study.

Results

For detecting breast cancer using mammography plus BSGI, the sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating curve with 95% confidence intervals were 94% (91–96), 90% (86–93), 91% (87–94), 94% (90–96), and 0.92 (0.89–0.95), respectively. For mammography plus US, the respective values were 97% (94–98), 51% (46–57), 68% (63–73), 94% (90–96), and 0.74 (0.70–0.78).

Conclusions

Adjunctive BSGI had higher specificity than adjunctive US without loss of sensitivity. This finding suggests that adjunctive BSGI may be a useful complementary initial imaging method to improve the detection of breast cancer in women who have calcifications with suspicious morphology at mammography.

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