[논문]Critical US visibility with tissue harmonic imaging of subcutaneous nodules

Stella, S.M.; Ciampi, B.; Melchiorre, D.; Benedetti, E.; Orsitto, E.; Lippolis, P.V.

doi:10.1016/j.jus.2011.06.002

[해외논문] Critical US visibility with tissue harmonic imaging of subcutaneous nodules 원문보기

Journal of ultrasound : official journal of the Italian Society of Ultrasonology in Medicine and Biology (SIUMB), v.14 no.3, 2011년, pp.152 - 156

Stella, S.M. (Misericordia di Navacchio Hospital, Pisa, Italy) , Ciampi, B. (Misericordia di Navacchio Hospital, Pisa, Italy) , Melchiorre, D. (Department of Rheumatology, University of Florence, Italy) , Benedetti, E. (Department of Hematology, University of Pisa, Italy) , Orsitto, E. (Department of Radiology (Department of Emergency and Urgency), University Hospital of Pisa, Italy) , Lippolis, P.V. (Division of General and Emergency Surgery, University of Pisa, Italy)

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AbstractIntroductionAssessment of US ability to identify subcutaneous nodular lesions using conventional B mode imaging (CBMI) and tissue second harmonic imaging (THI).Materials and MethodsThree different types of equipment were used (Philips Envisor HDC, Philips HD 11 XE and GE Logic E) with 12–13 MHz probes and THI probes with variable frequency. One experienced operator studied 31 patients (24 women, 7 men, mean age 49 ± 15) with 52 subcutaneous nodular lesions of which 43 were palpable and 9 were nonpalpable. Statistical analysis was carried out using chi-square test.Results19/52 subcutaneous nodular lesions were hyperechoic, 10/52 were isoechoic and 23/52 were hypoechoic. Of the hyperechoic nodules, 8/19 (42%) (p < 0.005) were not detected using THI, as they “disappeared” when THI was activated. Of the isoechoic nodules only 1/10 was not detected using THI, and of the hypoechoic nodules only 2/23 were not detected. Of the nodular lesions detected using CBMI and also using THI (41/52), 16/41 were shown more clearly using THI than using BMCI. No nodule was detected with the exclusive use of THI.ConclusionsThe statistical significance of the “disappearing” lesions (p < 0.005), mainly hyperechoic (42%), at the activation of THI must lead to a reconsideration of routine activation of THI during the entire US examination in the evaluation of subcutaneous lesions in order to avoid the risk of missing important lesions. The present results suggest that both BMCI and THI should be used in the study of subcutaneous lesions.

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[해외논문] Critical US visibility with tissue harmonic imaging of subcutaneous nodules 원문보기

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