Contrast-enhanced Dedicated Breast CT: Initial Clinical Experience

Contrast-enhanced Dedicated Breast CT: Initial Clinical Experience
Nicolas D. Prionas, Karen K. Lindfors, Shonket Ray, Shih-Ying Huang, Laurel A. Beckett, Wayne L. Monsky, and John M. Boone
Radiology 2010;256 714-723

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Conspicuity of malignant breast masses at contrast-enhanced breast CT is significantly better than that at mammography or unenhanced breast CT, whereas conspicuity of lesions associated with malignant calcifications is better at contrast-enhanced breast CT than at unenhanced breast CT and is similar at contrast-enhanced breast CT and mammography

Learning Points:

Malignant mass lesions are significantly more conspicuous than benign lesions at contrast-enhanced dedicated breast CT when compared with mammography and unenhanced breast CT (P < .001 for each comparison).

Visualization of malignant calcifications (malignant lesions manifested mammographically as microcalcifications only) at contrast-enhanced breast CT is improved over that at unenhanced breast CT (P < .001) and is similar to that at mammography (P = .64).

Malignant breast lesions enhance by a mean of 38 HU more than do benign lesions (P < .001), and receiver operating characteristic curve analysis yields an area under the receiver operating characteristic curve of 0.876

US Surveillance of Regional Lymph Node Recurrence after Breast Cancer Surgery

US Surveillance of Regional Lymph Node Recurrence after Breast Cancer Surgery
Hee Jung Moon, Min Jung Kim, Eun-Kyung Kim, Byeong-Woo Park, Ji Hyun Youk, Jin Young Kwak, Joohyuk Sohn, and Seung-Il Kim
Radiology 2009;252 673-681
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Ipsilateral lymph node recurrence is a predictor of distant metastasis, and lymph node evaluation during breast US is useful for early detection of lymph node recurrence in asymptomatic patients