open access

Vol 4, No 2 (2001)
Published online: 2001-07-23
Submitted: 2012-01-23
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The role of scintimammography and mammography in recurrent breast cancer. Evaluation of their accuracy using ROC curves

Agnieszka D. Kolasińska, John R. Buscombe, Jarosław B. Ćwikła, Brian Holloway, Santilal P. Parbhoo, Tim Davidson, Andrew J.W. Hilson
Nucl. Med. Rev 2001;4(2):77-82.

open access

Vol 4, No 2 (2001)
Published online: 2001-07-23
Submitted: 2012-01-23

Abstract


BACKGROUND: With the increasing demand for breast conservation surgery, the probability of recurrent tumour within the breast increases. Traditionally x-ray mammography (XMM) was used to assess the post-surgical breast, but post-surgery and radiotherapy changes have reduced the accuracy of this method. Scintimammography (SMM) has also been proposed and appears to be more accurate than XMM.
MATERIAL AND METHODS: A total of 101 women received Tc99m MIBI SMM and 88 had a subsequent XMM. There were 142 sites suspected of loco-regional recurrence breast cancer. During the study the patients did not receive any treatment other then hormonotherapy. SMM was performed by the standard DigglesKhalkhali method and XMM was performed using standard 2 views. Analysis was performed and the results of each type of imaging compared with histology. In the ROC curve analysis 5 points of certainty were used: from 1 being definitely normal to 5 being definitely cancer; grades 4 and 5 were counted as positive.
RESULTS: The overall sensitivity value of SMM was 84% and specificity was 85%, compared with a sensitivity of 52% for XMM and a specificity of 84%. Analysis of areas under ROC curves provides statistically significant difference between SMM and XMM (p < 0.05). Combining the two tests did not significantly improve the diagnostic accuracy of sequence imaging over SMM.
CONCLUSION: ROC curve analysis demonstrates that scintimammography should be the primary investigation in suspected local recurrence following breast conservation surgery.

Abstract


BACKGROUND: With the increasing demand for breast conservation surgery, the probability of recurrent tumour within the breast increases. Traditionally x-ray mammography (XMM) was used to assess the post-surgical breast, but post-surgery and radiotherapy changes have reduced the accuracy of this method. Scintimammography (SMM) has also been proposed and appears to be more accurate than XMM.
MATERIAL AND METHODS: A total of 101 women received Tc99m MIBI SMM and 88 had a subsequent XMM. There were 142 sites suspected of loco-regional recurrence breast cancer. During the study the patients did not receive any treatment other then hormonotherapy. SMM was performed by the standard DigglesKhalkhali method and XMM was performed using standard 2 views. Analysis was performed and the results of each type of imaging compared with histology. In the ROC curve analysis 5 points of certainty were used: from 1 being definitely normal to 5 being definitely cancer; grades 4 and 5 were counted as positive.
RESULTS: The overall sensitivity value of SMM was 84% and specificity was 85%, compared with a sensitivity of 52% for XMM and a specificity of 84%. Analysis of areas under ROC curves provides statistically significant difference between SMM and XMM (p < 0.05). Combining the two tests did not significantly improve the diagnostic accuracy of sequence imaging over SMM.
CONCLUSION: ROC curve analysis demonstrates that scintimammography should be the primary investigation in suspected local recurrence following breast conservation surgery.
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Keywords

scintimmamography; breast cancer; ROC curves

About this article
Title

The role of scintimammography and mammography in recurrent breast cancer. Evaluation of their accuracy using ROC curves

Journal

Nuclear Medicine Review

Issue

Vol 4, No 2 (2001)

Pages

77-82

Published online

2001-07-23

Bibliographic record

Nucl. Med. Rev 2001;4(2):77-82.

Keywords

scintimmamography
breast cancer
ROC curves

Authors

Agnieszka D. Kolasińska
John R. Buscombe
Jarosław B. Ćwikła
Brian Holloway
Santilal P. Parbhoo
Tim Davidson
Andrew J.W. Hilson

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