Standardize and Compare Contrast-enhanced Ultrasonographic Digital Images Obtained with Different Technologies: How to Overcome the Subjectivity |
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Authors: | Mirko D’Onofrio Niccolò Faccioli Roberto Malagò Giulia Zamboni Roberto Pozzi Mucelli |
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Institution: | (1) Department of Radiology, Policlinico G.B. Rossi, University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy |
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Abstract: | Objective This study was conducted to compare digital images obtained with cadence contrast pulse sequencing (CPS) and coherent contrast
imaging (CCI) technologies for contrast-enhanced ultrasonography (CEUS).
Methods A CEUS study on 17 focal liver lesions was performed using CPS and CCI technologies with a second-generation contrast media.
The lesion/liver ratio and conspicuity index were then calculated and compared with Adobe Photoshop 6.0.
Results Lesion/liver ratio and conspicuity index using CCI ranged from 1.3 to 7.1 (mean value, 3) and 19 to 127 (mean value, 58),
respectively; by using CPS, we obtained results ranging from 2 to 19.1 (mean value, 8.9) and 57 to 164 (mean value, 109.2).
Lesion/liver ratio and the conspicuity index for the lesions using CPS showed significantly (p < 0.0001) superior results
than those obtained using CCI.
Conclusion The computed analysis with standardization allows an objective evaluation of digital images of CEUS. CPS technology resulted
in better lesion conspicuity compared to CCI during CEUS study on focal liver lesions. |
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Keywords: | Ultrasound contrast-enhanced focal liver lesion standardization adobe photoshop |
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