Journal of Korean Society of Ultrasound in Medicine 2013;32(1): 27-32.
Factors Influencing the Finding of Strain Ultrasound Elastography in Benign Subcutaneous Tumors.
So Yeon Lee, Hee Jin Park, Su Kyung Jeh
1Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Korea. radiology12@paran.com
2Department of Radiology, Kangnam Sacred Heart Hospital, Hallym University of Korea, Korea.
  Published online: March 31, 2013.
ABSTRACT
PURPOSE: The purpose of this study is to investigate factors influencing strain sonoelastography findings in evaluation of subcutaneous tumors. MATERIALS AND METHODS: Retrospective analysis of sonoelastography findings performed by two radiologists in 38 consecutive patients with 38 pathologically confirmed benign subcutaneous tumors was performed. Elastographic finding of the lesions was graded from 1 (softer) to 3 (harder) according to stiffness. Analysis of correlations between elastographic findings and height, width and depth of the lesion, and the distance from bone was performed using the Kruskal-Wallis test. RESULTS: By reviewer 1, 11 lesions were grade 1 on sonoelastography, eight were grade 2, and 19 were grade 3, respectively. By reviewer 2, 11 lesions were grade 1 on sonoelastography, nine were grade 2, and 18 were grade 3, respectively. The distance from bone differed significantly among the three grades groups for both reviewers; grade 1, 2, and 3, 0.78 +/- 0.75 cm, 1.56 +/- 0.68 cm, and 1.77 +/- 0.63 cm, for reviewer 1 (P = .006) and 0.86 +/- 0.79 cm, 1.55 +/- 0.72 cm, and 1.74 +/- 0.65 cm for reviewer 2 (P = .016). No significant difference in height, width, and depth of the lesion was observed among the three groups. CONCLUSION: Distance from bone showed a significant association with strain sonoelastographic findings of benign subcutaneous tumors.
Keywords: Ultrasonography; Superficial soft tissue mass; Elastography; Benign
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