1. Volume 17, Issue 3, Pages 340-347 (March 2010)
Preoperative and Intraoperative Sonographic Visibility of Collagen-Based Breast Biopsy Marker Clips 
Peter R. Eby, MD, Kristine E. Calhoun, MD, Brenda F. Kurland, PhD, Wendy B. DeMartini, MD, Robert L. Gutierrez, MD, Sue Peacock, MS, Benjamin O. Anderson, MD, David R. Byrd, MD, Gary N. Mann, MD, Constance D. Lehman, MD, PhD 
Academic Radiology 
Volume 17, Issue 3, Pages (March 2010)
DOI: /j.acra
Copyright © 2010 AUR Terms and Conditions

2. Figure 1
Flow chart of patient enrollment, completion of study procedures, and lesion types on the basis of histology of the core needle biopsy. DCIS, ductal carcinoma in situ.
Academic Radiology  , DOI: ( /j.acra )
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3. Figure 2
Box plots of the visibilities of the marker clips and lesions assigned by the surgeon on the day of the preoperative (pre-op) appointment and the surgeon and radiologist on the day of the operation. The plots suggest a trend of decreasing visibility of the marker clips over time. However, the difference between the surgeons' assessments at the preoperative appointment and on the day of surgery was not significant (P=.27). The difference between the surgeons and radiologists on the day of surgery was not significant (P=.22). Wire-loc, wire localization.
Academic Radiology  , DOI: ( /j.acra )
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4. Figure 3
Two-dimensional ultrasound image of a highly visible lesion (arrow) and highly visible clip (arrowhead) at the preoperative visit, 16 days after biopsy and clip placement, in a 42-year-old patient with invasive ductal carcinoma. The lesion was assigned a 5 for visibility, and the clip was given a 4.
Academic Radiology  , DOI: ( /j.acra )
Copyright © 2010 AUR Terms and Conditions

5. Figure 4
Two-dimensional ultrasound image of a highly visible lesion (arrowhead) and poorly visible clip at the preoperative visit, 17 days after biopsy and clip placement, in a 44-year-old patient with invasive ductal carcinoma. The lesion was assigned a 4 for visibility, and the clip was given a 1.
Academic Radiology  , DOI: ( /j.acra )
Copyright © 2010 AUR Terms and Conditions

6. Figure 5
Two-dimensional ultrasound image of a moderately visible lesion (arrow) and highly visible clip (arrowhead) at the preoperative visit, 17 days after biopsy and clip placement, in a 43-year-old patient with ductal carcinoma in situ presenting as a mass. The lesion was assigned a 3 for visibility, and the clip was given a 5.
Academic Radiology  , DOI: ( /j.acra )
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7. Figure 6
Two-dimensional ultrasound image of a poorly visible lesion and poorly visible clip at the preoperative visit, 16 days after biopsy and clip placement, in a 67-year-old patient with invasive ductal carcinoma. The lesion was assigned a 2 for visibility, and the clip was given a 1.
Academic Radiology  , DOI: ( /j.acra )
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8. Figure 7
Plot of the surgeon-rated visibilities of the clips over time (in days) since they were placed. There are two data points for each clip: the day of the preoperative appointment and the day of surgery. A line connects each pair of data points for a single clip. The visibility of most clips was constant or decreased over time. However, the visibility of four clips improved over time. Wilcoxon's signed-rank test did not demonstrate a significant difference between the paired preoperative visibilities and the visibilities on the day of surgery (P=.27).
Academic Radiology  , DOI: ( /j.acra )
Copyright © 2010 AUR Terms and Conditions