Wednesday, 28 October 2009

Why Do Purely Intraductal Cancers Enhance on Breast MR Images?
Christiane K. Kuhl
Radiology 2009;253 281-283

Link to Journal


Diagnosis and treatment of high-grade DCIS can be considered primary prevention of high-grade invasive cancer.

Thus, we have reason to assume that screening with MR imaging would offer a mortality benefit that is higher than that achieved with mammographic screening, not only because of the higher overall sensitivity offered by MR imaging but also because of its bias for selectively depicting prognostically relevant disease

On the basis of the results of the animal study performed by Jansen et al and clinical observations, there is compelling evidence to suggest that the imaging phenotype of a ductal carcinoma in situ (DCIS) lesion (its detectability at mammography and MR imaging, specifically the presence or absence of calcifications on mammograms and the presence or absence of calcifications and the degree of their enhancement on MR images) conveys important biologic information that will be useful when guiding DCIS treatment.

Breast Cancer Screening Results 5 Years after Introduction of Digital Mammography in a Population-based Screening Program

Breast Cancer Screening Results 5 Years after Introduction of Digital Mammography in a Population-based Screening Program
Nico Karssemeijer, Adriana M. Bluekens, David Beijerinck, Jan J. Deurenberg, Matthijs Beekman, Roelant Visser, Ruben van Engen, Annemieke Bartels-Kortland, and Mireille J. Broeders
Radiology 2009;253 353-358

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With the FFDM-CAD combination, detection performance is at least as good as that with SFM. The detection of ductal carcinoma in situ and microcalcification clusters improved with FFDM using CAD, while the recall rate increased.

Results indicate that with full-field digital mammography (FFDM) using computer-aided diagnosis (CAD) and double reading, the detection is as good as that with screen-film mammography, and detection of clustered microcalcifications and ductal carcinoma in situ is improved with FFDM using CAD

Diffusion-weighted MR for Differentiation of Breast Lesions at 3.0 T: How Does Selection of Diffusion Protocols Affect Diagnosis?

Diffusion-weighted MR for Differentiation of Breast Lesions at 3.0 T: How Does Selection of Diffusion Protocols Affect Diagnosis?
Wolfgang Bogner, Stephan Gruber, Katja Pinker, Günther Grabner, Andreas Stadlbauer, Michael Weber, Ewald Moser, Thomas H. Helbich, and Siegfried Trattnig
Radiology 2009;253 341-351

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Optimum ADC determination and DW imaging quality at 3.0 T was found with a combined b value protocol of 50 and 850 sec/mm2. This provided a high accuracy for differentiation of benign and malignant breast tumors

Standardization of b values allows improved inter-study comparisons on the diagnostic accuracy of diffusion-weighted MR breast examinations

Tuesday, 29 September 2009

Influence of E-cadherin Expression on the Mammographic Appearance of Invasive Nonlobular Breast Carcinoma Detected at Screening

Influence of E-cadherin Expression on the Mammographic Appearance of Invasive Nonlobular Breast Carcinoma Detected at Screening
Sarah Doyle, Andrew J. Evans, Emad A. Rakha, Andrew R. Green, and Ian O. Ellis
Radiology 2009;253 51-55
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The high frequency of ill-defined masses and the low frequency of non-comedo microcalcification seen in invasive nonlobular breast cancer with E-cadherin loss are features similar to those seen in a series recording the mammographic appearance of invasive lobular cancer

Can Computer-aided Detection Be Detrimental to Mammographic Interpretation?

Can Computer-aided Detection Be Detrimental to Mammographic Interpretation?
Liane E. Philpotts
Radiology 2009;253 17-22

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Understanding of the limitations of computer-aided detection is important for those interpreting mammograms; this cautious approach to the use of computer-aided detection should help optimize this presently imperfect system and minimize the possible detrimental effects

The Preponderance of Evidence Supports Computer-aided Detection for Screening Mammography

The Preponderance of Evidence Supports Computer-aided Detection for Screening Mammography
Robyn L. Birdwell
Radiology 2009;253 9-16

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Having a system to aid the human eye that does not take vacations, is not vulnerable to fatigue or environmental distractions, is without, emotion, and is designed specifically to assist the very human eye to "look over here" seems like a good idea

Friday, 28 August 2009

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
Link to Journal

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