Aliasing artifact depicted on ultrasound (US)-elastography for breast cystic lesions mimicking solid masses

Cho, Nariya; Moon, Woo Kyung; Chang, Jung Min; Kim, Seung Ja; Lyou, Chae Yeon; Choi, Hye Young

doi:10.1258/ar.2010.100116

Cited by 28 publications

(17 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There have been a few descriptive studies regarding its application in cystic breast lesions. In our study, the blue-green-red pattern that was observed in the cystic breast lesions can be explained by an aliasing artifact (28). The target or bull's-eye appearance found with the use of other machines can be explained by the subtle motion of the fluid (10).…”

Section: Discussionmentioning

confidence: 61%

“…The training session consisted of a review of five cases of complex breast masses that were not included in our study. Reviewers were advised against overestimating the elasticity score based on the stiffness of an echogenic component of the lesion, since the cystic component tends to be markedly softer than the solid component (27, 28). …”

Section: Methodsmentioning

confidence: 99%

“…Recent studies have reported that sonoelastography is helpful in distinguishing benign from malignant solid breast masses and shows better specificity (range, 41.0-98.5%) than that of B-mode US alone (range, 7.1-98.8%) (18-26). In addition, the potential application of sonoelastography in distinguishing solid masses from cystic lesions has been reported in several studies (27, 28). …”

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

Sonoelastography in Distinguishing Benign from Malignant Complex Breast Mass and Making the Decision to Biopsy

Kim

Cho

et al. 2013

Korean J Radiol

Self Cite

View full text Add to dashboard Cite

ObjectiveTo evaluate the additional effect of sonoelastography on the radiologist's ability for distinguishing benign from malignant complex breast masses and to decide whether to perform biopsy by B-mode US.Materials and MethodsOne hundred eighteen complex breast masses (15 malignant lesions, 103 benign lesions) were included. Five blinded readers independently assessed the likelihood of the malignancy score from 1 to 5 for two data sets (B-mode ultrasound alone and B-mode ultrasound with sonoelastography). Elasticity scores were categorized as 0, 1, or 2 based on the degree and distribution of strain of the echogenic component within complex masses. The readers were asked to downgrade the likelihood of the malignancy score when an elasticity score of 0 was assigned and to upgrade the likelihood of the malignancy score when an elasticity score of 2 was assigned. The likelihood of the malignancy score was maintained as it was for the lesions with an elasticity score of 1. The Az values, sensitivities, and specificities were compared.ResultsThe Az value of B-mode ultrasound with sonoelastography (mean, 0.863) was greater than that of B-mode ultrasound alone (mean, 0.731; p = 0.001-0.007) for all authors. The specificity of B-mode ultrasound with sonoelastography (mean, 37.1%) was greater than that of B-mode ultrasound alone (mean, 3.8%; p < 0.001) for all readers. The addition of sonoelastography led to changes in decisions. A mean of 33.6% of benign masses were recommended for follow-up instead of biopsy.ConclusionFor complex breast masses, sonoelastography allows increase in both the accuracy in distinguishing benign from malignant lesions and the specificity in deciding whether to perform biopsy.

show abstract

Section: Discussionmentioning

confidence: 61%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Sonoelastography in Distinguishing Benign from Malignant Complex Breast Mass and Making the Decision to Biopsy

Kim

Cho

et al. 2013

Korean J Radiol

Self Cite

View full text Add to dashboard Cite

show abstract

“…The dichotomy might have been due to different study populations (neonate versus adults). During our study, we noticed that the lateral ventricle, which is cystic and overlies the caudate, can produce an aliasing artifact, resulting in a higher elasticity score of the caudate . However, regions of interest were drawn in the caudate, substantially apart from the lateral ventricle.…”

Section: Discussionmentioning

confidence: 87%

Ultrasound Elastography of the Neonatal Brain: Preliminary Study

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Strain ratios above 1 signify that the lesion is harder than the surrounding tissue. Strain ratios have been used for diagnosis of focal lesions in the breast [7][8][9], thyroid glands [10,11], and lymph nodes [12,13]. Another method of semiquantifying strain elastograms is strain histogram analysis, first performed by Săftoiu et al [14].…”

mentioning

confidence: 99%

A Comparative Study of Strain and Shear-Wave Elastography in an Elasticity Phantom

Carlsen

Pedersen

Ewertsen

et al. 2015

American Journal of Roentgenology

View full text Add to dashboard Cite

OBJECTIVE. The purpose of this study was to assess the diagnostic accuracy of strain and shear-wave elastography for determining targets of varying stiffness in a phantom. The effect of target diameter on elastographic assessments and the effect of depth on shear-wave velocity were also investigated. MATERIALS AND METHODS. We examined 20 targets of varying diameters (2.5-16.7 mm) and stiffnesses (8, 14, 45, and 80 kPa) with a 4-9-MHz linear-array transducer. Targets were evaluated 10 times with three different methods-shear-wave elastography, strain ratio, and strain histogram analysis-yielding 600 evaluations. AUCs were calculated for data divided between different stiffnesses. A 1.5-6-MHz curved-array transducer was used to assess the effect of depth (3.5 vs 6 cm) on shear-wave elastography in 80 scans. Mixed model analysis was performed to assess the effect of target diameter and depth. RESULTS. Strain ratio and strain histogram AUCs were higher than the shear-wave velocity AUC (p < 0.001) in data divided as 80 versus 45, 14, and 8 kPa. In data divided as 80 and 45 versus 14 and 8 kPa, the methods were equal (p = 0.959 and p = 1.000, respectively). Strain ratios were superior (p = 0.030), whereas strain histograms were not significantly better (p = 0.083) than shear-wave elastography in data divided as 80, 45, and 14 versus 8 kPa. Target diameter had an effect on all three methods (p = 0.001). Depth had an effect on shear-wave velocity (p = 0.001). CONCLUSION. The ability to discern different target stiffnesses varies between shear-wave and strain elastography. Target diameter affected all methods. Shear-wave elastography is affected by target depth.

show abstract

Aliasing artifact depicted on ultrasound (US)-elastography for breast cystic lesions mimicking solid masses

Abstract: An aliasing artifact that appears as a blue-green-red pattern in a breast mass as depicted on US-elastography is suggestive of a possible cystic breast lesion.

Cited by 28 publications

References 12 publications

Sonoelastography in Distinguishing Benign from Malignant Complex Breast Mass and Making the Decision to Biopsy

Sonoelastography in Distinguishing Benign from Malignant Complex Breast Mass and Making the Decision to Biopsy

Ultrasound Elastography of the Neonatal Brain: Preliminary Study

A Comparative Study of Strain and Shear-Wave Elastography in an Elasticity Phantom

Contact Info

Product

Resources

About