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Breast Electron Boost Planning: Comparison of CT and US1

Melanie C. Smitt, MD, Robyn L. Birdwell, MD and Don R. Goffinet, MD

1 From the Departments of Radiation Oncology (M.C.S., D.R.G.) and Diagnostic Radiology (R.L.B.), Stanford Hospital, Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305. Received September 20, 1999; revision requested October 20; final revision received August 1, 2000; accepted September 6. Address correspondence to M.C.S. (e-mail: melanies@reyes.stanford.edu).



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  		Figure 1a. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 5 at both studies. The cavity (arrows) has a homogeneous pattern at CT and a cystic pattern at US.

 


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  		Figure 1b. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 5 at both studies. The cavity (arrows) has a homogeneous pattern at CT and a cystic pattern at US.

 


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  		Figure 2a. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 4 at both studies. The cavity (arrows) has a mildly heterogeneous appearance at CT and a complex primarily cystic appearance at US. Crosses denote the locations of the anterior and posterior depth measurements.

 


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  		Figure 2b. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 4 at both studies. The cavity (arrows) has a mildly heterogeneous appearance at CT and a complex primarily cystic appearance at US. Crosses denote the locations of the anterior and posterior depth measurements.

 


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  		Figure 3a. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 3 at CT and of 2 at US. The cavity (arrows) has a heterogeneous appearance at CT and an ill-defined appearance at US.

 


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  		Figure 3b. Transverse (a) CT 1 and (b) US images of the breast cavity in a patient with a CVS of 3 at CT and of 2 at US. The cavity (arrows) has a heterogeneous appearance at CT and an ill-defined appearance at US.

 




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