1 Introduction to Elastography

Barr, Richard G.; Bam, Anupam; Bortolotto, Chandra; Bruno, Costanza; Calliada, Fabrizio; Cantisani, Vito; Catalano, Carlo; Chaubal, Nitin; Ciaravino, Valentina; Corréas, Jean-Michel; Cosgrove, David O.; Crosara, Stefano; Dambrosio, F; David, Emanuele; Robertis, Riccardo De; Leo, Nicola Di; DiSegni, Mattia; D’Onofrio, Mirko; Dzyubak, Bogdan; Ferraioli, Giovanna; Fı̀lice, Carlo; Gennari, Antonio Giulio; Grazhdani, Hektor; Hager, Nelson A.; Hélénon, O.; Isidori, Andrea M.; Khadtare, Ketki; Lex, Amy M.; Lissandrin, Raffaella; Masciotra, Antonio; Mucelli, Roberto Pozzi; Pontello, Michele; Quaia, Emilio; Schillizzi, Giuseppe; Wilson, Stephanie R.; Zicchetti, Mabel

doi:10.1055/b-0036-140635

Cited by 2 publications

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“…Despite improved quantification and reproducibility, SWE is subject to artefacts as a result of non-uniformity of tissues and tissue boundaries 4,5 . Both techniques continue to evolve and current breast imaging research proposes they are complementary, with similar diagnostic performance superior to that of B-mode US alone [6][7][8] . SE is widely performed in breast and thyroid imaging, providing improved ability to characterise mass lesions 2,[9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Reliability of ultrasound strain elastography in the assessment of the quadriceps and patellar tendon in healthy adults

et al. 2019

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Objective To report the intra- and inter-operator reliability of ultrasound strain elastography measures in the assessment of quadriceps and patellar tendons. Materials and methods Forty tendons were investigated of 20 healthy volunteers. Five anatomical sites were examined and analysed by three operators of differing levels of experience. Ultrasound was performed over two measures, employing three sonoelastography measurement techniques using a GE S8 with linear probe (L6–15 MHz). The percentage of exact agreement, Cohen's kappa and ICC2,1 were performed to assess intra- and inter-operator reliability. Results The patellar tendon is more reliably measured across all techniques compared to the quadriceps tendon, particularly the distal region. Colour scoring was the most reliable method of sonoelastography. Colour scoring intra- and inter-operator reliability was better for patella tendon sites across all operators (60–95% agreement range), and greatest for experienced operators. Elasticity index intra-operator reliability was greatest for the most experienced operator compared with the least (ICC range 0.35–0.72 and ICC 0.17–0.60). Elasticity ratio intra-operator reliability of the patella tendon was fair–excellent for the experienced operator (ICC range 0.43–0.91), excluding the mid patellar region (ICC 0.13). Poor–fair inter-operator reliability was observed for elasticity ratio (ICC range 0.0–0.54) and elasticity index (ICC range 0.0–0.57). Conclusions Strain elastography of the patellar tendon is more reliable than the quadriceps tendon. Intra- and inter-operator reliability was better when undertaken by more experienced operators. Colour scoring was more reliable than elasticity ratio and index methods. Poor–fair intra- and inter-operator reliability of the elasticity ratio and elasticity index was observed.

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Section: Introductionmentioning

confidence: 99%

Reliability of ultrasound strain elastography in the assessment of the quadriceps and patellar tendon in healthy adults

et al. 2019

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Ultrasonographic Algorithm for the Assessment of Sentinel Lymph Nodes That Drain the Mammary Carcinomas in Female Dogs

Stan

Gudea

Damian

et al. 2020

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The status of sentinel lymph nodes (SLNs) is decisive in staging, prognosis, and therapeutic approach. Using an ultrasonographic examination algorithm composed of B-mode, Doppler technique, contrast-enhanced ultrasound (CEUS) and elastography, this study aimed to determine the diagnostic performance of the four techniques compared to histopathological examination. 96 SLNs belonging to 71 female dogs with mammary gland carcinomas were examined. After examinations, mastectomy and lymphadenectomy were performed. Histopathological examination confirmed the presence of metastases in 54 SLNs. The elasticity score had the highest accuracy—89.71%, identifying metastases in SLNs with 88.9.9% sensitivity (SE) and 90.5% specificity (SP), ROC analysis providing excellent results. The S/L (short axis/long axis) ratio showed 83.3% SE and 78.6% SP as a predictor of the presence of metastases in SLN having a good accuracy of 81.2%. On Doppler examination, the resistivity index(RI) showed good accuracy of 80% in characterizing lymph nodes with metastases versus unaffected ones; the same results being obtained by CEUS examination. By assigning to each ultrasonographic parameter a score (0 or 1) and summing up the scores of the four techniques, we obtained the best diagnostic performance in identifying lymph node metastases with 92.2% accuracy. In conclusion, the use of the presented algorithm provides the best identification of metastases in SLNs, helping in mammary carcinoma staging and appropriate therapeutic management.

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1 Introduction to Elastography

Cited by 2 publications

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Reliability of ultrasound strain elastography in the assessment of the quadriceps and patellar tendon in healthy adults

Reliability of ultrasound strain elastography in the assessment of the quadriceps and patellar tendon in healthy adults

Ultrasonographic Algorithm for the Assessment of Sentinel Lymph Nodes That Drain the Mammary Carcinomas in Female Dogs

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