J Korean Soc Ultrasound Med.
2010 Dec;29(4):271-279.
Characterization of Cystic Breast Masses on Ultrasound: Comparative Study among Conventional, Tissue Harmonic, Compound, and a Combination of Tissue Harmonic and Compound Imaging
- Affiliations
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- 1Department of Radiology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea. seoboky@korea.ac.kr
- 2Department of Biostatistics, Institute of Economics, Korea University, Seoul, Korea.
- 3Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
- 4Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
- 5Department of General Surgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.
Abstract
- PURPOSE
This prospective study was to compare the image quality and diagnostic performance of breast cystic masses by conventional and advanced ultrasound (US) techniques including tissue harmonic, compound, and the combination of these techniques.
MATERIALS AND METHODS
All 91 patients, collectively having 109 breast cystic masses were scanned using four US techniques (complicated cysts in 36, septated cysts in 33, and complex cysts in 40). Two breast radiologists independently assessed the image quality and possibility of malignancy. Image quality was evaluated in terms of contrast and clarity of the wall and internal echo pattern and then graded on a scale of 1 (poor) to grade 3 (satisfactory). The possibility of malignancy was graded on a scale of 1 (suggestive of benignancy) to 5 (suggestive of malignancy) using US images. The histopathological results and follow-up images were used as the reference standard for the assessment of diagnostic performance. Results were evaluated by Friedman's test and receiver operating characteristic (ROC) analyses.
RESULTS
In terms of image quality, a grade of 3 was significantly more frequent in the three advanced US techniques than conventional US (p < 0.05). For assessment of diagnostic performance, areas under the ROC curves in three advanced techniques were significantly higher than in conventional US (p < 0.05).
CONCLUSION
Advanced US techniques including compound and tissue harmonic US techniques provide a better image quality in breast cystic masses and also improve the diagnostic performance compared with conventional US.
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