Critical US visibility with tissue harmonic imaging of subcutaneous nodules().

ABSTRACT:

Introduction

Assessment of US ability to identify subcutaneous nodular lesions using conventional B mode imaging (CBMI) and tissue second harmonic imaging (THI).

Materials and methods

Three 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.

Results

19/52 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 "disapp

SUBMITTER: Stella SM 

PROVIDER: S-EPMC3558069 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature