Preclinical evaluation of acoustic radiation force impulse measurements in regions of heterogeneous elasticity
| Autor: | Konrad Stock, Bernhard Gaßmann, Minh-Truc Vo-Cong, Uwe Heemann, Stefan Wagenpfeil, Katharina Hollerieth, Philipp Moog |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
lcsh:Medical technology Transducers Impulse (physics) Phantoms imaging Imaging phantom Standard deviation 030218 nuclear medicine & medical imaging 03 medical and health sciences Elasticity Imaging Techniques 0302 clinical medicine Elasticity imaging techniques Region of interest Medicine Radiology Nuclear Medicine and imaging Elasticity (economics) Acoustic radiation force Ultrasonography medicine.diagnostic_test business.industry ddc lcsh:R855-855.5 030220 oncology & carcinogenesis Original Article Radiology Elastography Heterogeneity business Biomedical engineering |
| Zdroj: | Ultrasonography, Vol 35, Iss 4, Pp 345-352 (2016) Ultrasonography |
| ISSN: | 2288-5943 2288-5919 |
| Popis: | PURPOSE The purpose of this study was to compare the reliability of ultrasound-based shear wave elastography in regions of homogeneous versus heterogeneous elasticity by using two different probes. METHODS Using acoustic radiation force impulse (ARFI) elastography, we measured the shear wave velocity (SWV) in different lesions of an elastography phantom with the convex 4C1 probe and the linear 9L4 probe. The region of interest (ROI) was positioned in such a way that it was partly filled by one of the lesions (0%, 25%, 50%, 75%, and 100%) and partly by the background of the phantom (100%, 75%, 50%, 25%, and 0%, respectively). RESULTS The success rate was 98.5%. The measured value and the reference value of SWV correlated significantly (r=0.89, P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|