Limits...
Sonographic evaluation of breast nodules: comparison of conventional, real-time compound, and pulse-inversion harmonic images.

Seo BK, Oh YW, Kim HR, Kim HW, Kang CH, Lee NJ, Kim JH, Park BJ, Cho KR, Lee JY, Lee KY, Bae JW - Korean J Radiol (2002 Jan-Mar)

Bottom Line: The three techniques were compared using Friedman's test, and interobserver agreement in image interpretation was assessed by means of the intraclass correlation coefficient.Interobserver agreement was greater than moderate.Real-time compound and pulse-inversion harmonic imaging procedures are superior to conventional sonography in terms of both lesion conspicuity and the further characterization of breast nodules.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic Radiology, Korea University Anam Hospital, 126-1 Anam-dong 5-ga, Sungbuk-gu, Seoul 136-705, Korea. ssbk@dreamwiz.com

ABSTRACT

Objective: To compare the use of conventional, real-time compound, and pulse-inversion harmonic imaging in the evaluation of breast nodules.

Materials and methods: Fifty-two breast nodules were included in this study, conducted between May and December 2000, in which conventional, real-time compound, and pulse-inversion harmonic images were obtained in the same plane. Three radiologists, each blinded to the interpretations of the other two, evaluated the findings, characterizing the lesions and ranking the three techniques from grade 1, the worst, to grade 3, the best. Lesion conspicuity was assessed, and lesions were also characterized in terms of their margin, clarity of internal echotexture, and clarity of posterior echo pattern. The three techniques were compared using Friedman's test, and interobserver agreement in image interpretation was assessed by means of the intraclass correlation coefficient.

Results: With regard to lesion conspicuity, margin, and internal echotexture of the nodules, real-time compound imaging was the best technique (p < 0.05); in terms of posterior echo pattern, the best was pulse-inversion harmonic imaging (p < 0.05). Real-time compound and pulse inversion harmonic imaging were better than conventional sonography in all evaluative aspects. Interobserver agreement was greater than moderate.

Conclusion: Real-time compound and pulse-inversion harmonic imaging procedures are superior to conventional sonography in terms of both lesion conspicuity and the further characterization of breast nodules. Real-time compound imaging is the best technique for evaluation of the margin and internal echotexture of nodules, while pulse-inversion harmonic imaging is very effective for the evaluation of the posterior echo patterns.

Show MeSH

Related in: MedlinePlus

Sonograms of a 52-year-old woman show a well-defined, hypoechoic, round nodule with internal microcalcifications. Posterior shadowing (arrows) due to microcalcifications is more clearly visualized at pulse-inversion harmonic imaging (C) than conventional (A) and real-time compound imaging (B). Pathologic examination indicated the presence of degenerating fibroadenoma.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2713985&req=5

Figure 5: Sonograms of a 52-year-old woman show a well-defined, hypoechoic, round nodule with internal microcalcifications. Posterior shadowing (arrows) due to microcalcifications is more clearly visualized at pulse-inversion harmonic imaging (C) than conventional (A) and real-time compound imaging (B). Pathologic examination indicated the presence of degenerating fibroadenoma.

Mentions: The posterior echo pattern was enhanced in 27 nodules (52%) and there was shadowing in 18 (35%), while in seven (13%) there was no change. In terms of clarity, PIHI was judged far superior to both CI and RTCI, while CI was better than RTCI (p < 0.05) (Table 3) (Fig. 5).


Sonographic evaluation of breast nodules: comparison of conventional, real-time compound, and pulse-inversion harmonic images.

Seo BK, Oh YW, Kim HR, Kim HW, Kang CH, Lee NJ, Kim JH, Park BJ, Cho KR, Lee JY, Lee KY, Bae JW - Korean J Radiol (2002 Jan-Mar)

Sonograms of a 52-year-old woman show a well-defined, hypoechoic, round nodule with internal microcalcifications. Posterior shadowing (arrows) due to microcalcifications is more clearly visualized at pulse-inversion harmonic imaging (C) than conventional (A) and real-time compound imaging (B). Pathologic examination indicated the presence of degenerating fibroadenoma.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2713985&req=5

Figure 5: Sonograms of a 52-year-old woman show a well-defined, hypoechoic, round nodule with internal microcalcifications. Posterior shadowing (arrows) due to microcalcifications is more clearly visualized at pulse-inversion harmonic imaging (C) than conventional (A) and real-time compound imaging (B). Pathologic examination indicated the presence of degenerating fibroadenoma.
Mentions: The posterior echo pattern was enhanced in 27 nodules (52%) and there was shadowing in 18 (35%), while in seven (13%) there was no change. In terms of clarity, PIHI was judged far superior to both CI and RTCI, while CI was better than RTCI (p < 0.05) (Table 3) (Fig. 5).

Bottom Line: The three techniques were compared using Friedman's test, and interobserver agreement in image interpretation was assessed by means of the intraclass correlation coefficient.Interobserver agreement was greater than moderate.Real-time compound and pulse-inversion harmonic imaging procedures are superior to conventional sonography in terms of both lesion conspicuity and the further characterization of breast nodules.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic Radiology, Korea University Anam Hospital, 126-1 Anam-dong 5-ga, Sungbuk-gu, Seoul 136-705, Korea. ssbk@dreamwiz.com

ABSTRACT

Objective: To compare the use of conventional, real-time compound, and pulse-inversion harmonic imaging in the evaluation of breast nodules.

Materials and methods: Fifty-two breast nodules were included in this study, conducted between May and December 2000, in which conventional, real-time compound, and pulse-inversion harmonic images were obtained in the same plane. Three radiologists, each blinded to the interpretations of the other two, evaluated the findings, characterizing the lesions and ranking the three techniques from grade 1, the worst, to grade 3, the best. Lesion conspicuity was assessed, and lesions were also characterized in terms of their margin, clarity of internal echotexture, and clarity of posterior echo pattern. The three techniques were compared using Friedman's test, and interobserver agreement in image interpretation was assessed by means of the intraclass correlation coefficient.

Results: With regard to lesion conspicuity, margin, and internal echotexture of the nodules, real-time compound imaging was the best technique (p < 0.05); in terms of posterior echo pattern, the best was pulse-inversion harmonic imaging (p < 0.05). Real-time compound and pulse inversion harmonic imaging were better than conventional sonography in all evaluative aspects. Interobserver agreement was greater than moderate.

Conclusion: Real-time compound and pulse-inversion harmonic imaging procedures are superior to conventional sonography in terms of both lesion conspicuity and the further characterization of breast nodules. Real-time compound imaging is the best technique for evaluation of the margin and internal echotexture of nodules, while pulse-inversion harmonic imaging is very effective for the evaluation of the posterior echo patterns.

Show MeSH
Related in: MedlinePlus