Preliminary clinical evaluation of a multisite telemammography system in a screening mammography environment

J. Ken Leader; Luisa P. Wallace M.D.; Christiane M. Hakim M.D.; Todd M. Hertzberg M.D.; Lara A. Hardesty M.D.; Jules H. Sumkin M.D.; Cathy Cohen; Colleen Sneddon; Shirley Lindeman; Deborah Craig; John M. Drescher

doi:10.1117/12.480470

19 May 2003 Preliminary clinical evaluation of a multi-site telemammography system in a screening mammography environment

J. Ken Leader, Luisa P. Wallace M.D., Christiane M. Hakim M.D., Todd M. Hertzberg M.D., Lara A. Hardesty M.D., Jules H. Sumkin M.D., Cathy Cohen, Colleen Sneddon, Shirley Lindeman, Deborah Craig, John M. Drescher

Author Affiliations +

Proceedings Volume 5033, Medical Imaging 2003: PACS and Integrated Medical Information Systems: Design and Evaluation; (2003) https://doi.org/10.1117/12.480470
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

We evaluated a telemammography system for reviewing and rating screening mammography in a clinical setting. Three remote sites transmitted 306 exams to a central site. Films were digitized at 50 micron pixel dimensions and compressed at a 50:1 ratio. At the central site images were displayed on a workstation with two high-resolution monitors. Five radiologists reviewed and rated the screens without the availability of prior images or additional information indicating: 1) if additional procedures were needed, 2) which breast was involved, and 3) when appropriate, the recommended additional procedures. During the actual clinical interpretation 13.7% (42 cases) of the patients were recalled for additional procedures. During the retrospective review radiologists 1, 2, 3, 4, and 5 recommended additional procedures for 26.1%, 29.1%, 36.3%, 45.1%, and 54.2% of the cases, respectively. The agreements between the clinical interpretation and radiologists 1, 2, 3, 4, and 5 were 77.8%, 76.1%, 69.0%, 62.7%, and 53.6%, respectively. The exceedingly high percentage of recommended additional procedures using the workstation was attributed to lack of prior images or additional information, the knowledge that case management was not affected, and the observers’ expectation for an enriched case mix.

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J. Ken Leader, Luisa P. Wallace M.D., Christiane M. Hakim M.D., Todd M. Hertzberg M.D., Lara A. Hardesty M.D., Jules H. Sumkin M.D., Cathy Cohen, Colleen Sneddon, Shirley Lindeman, Deborah Craig, and John M. Drescher "Preliminary clinical evaluation of a multi-site telemammography system in a screening mammography environment", Proc. SPIE 5033, Medical Imaging 2003: PACS and Integrated Medical Information Systems: Design and Evaluation, (19 May 2003); https://doi.org/10.1117/12.480470

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KEYWORDS

Mammography

Image compression

Image display

Breast

Computing systems

Diagnostics

Breast cancer

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