Comparison of five viscoelastic models for estimating viscoelastic parameters using ultrasound shear wave elastography

buckling of viscoelastic composite plates using the finite strip method

در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....

Cardiac Shear Wave Elastography Using a Clinical Ultrasound System.

The propagation velocity of shear waves relates to tissue stiffness. We prove that a regular clinical cardiac ultrasound system can determine shear wave velocity with a conventional unmodified tissue Doppler imaging (TDI) application. The investigation was performed on five tissue phantoms with different stiffness using a research platform capable of inducing and tracking shear waves and a clin...

Comparison of Shear-Wave and Strain Ultrasound Elastography for Evaluating Fat Induration after Breast Reconstruction

I n autologous breast reconstruction after mastec-tomy, fat induration is a rather common complication that causes deep tissue infection, pain, and contracture deformity. Follow-up for fat induration provides important clues after breast reconstruction with an autologous flap because fat induration is the clinical stage before fat necrosis that may lead to the need for corrective surgery. Our u...

The emergence of shear wave elastography in ultrasound

Tabletop magnetic resonance elastography for the measurement of viscoelastic parameters of small tissue samples.

We demonstrate the feasibility of low-cost tabletop MR elastography (MRE) for quantifying the complex shear modulus G(∗) of small soft biological tissue samples as provided by pathologists. The MRE system was developed based on a tabletop MRI scanner equipped with a 0.5 T permanent magnet and a tissue sample holder mounted to a loudspeaker. A spin echo sequence was enhanced with motion-encoding...