Intravascular Ultrasound Elastography Data from Rabbit Atherosclerotic Aorta

Aggregating experimental data from a study demonstrating intravascular ultrasound elastography using a dual-element transducer. It includes measurements of shear wave peak displacement and velocity to distinguish stiffness distributions in atherosclerotic arteries ex vivo, with results from gelatin phantoms and a rabbit aorta.

Use Cases

• Analyze the relationship between shear wave peak displacement and shear-wave velocity to quantify stiffness differences in arterial tissues.
• Use wave-amplitude and wave-velocity images to distinguish shear modulus differences, such as the demonstrated 1.6 kPa threshold.
• Compare stiffness distributions between lipid-rich plaques and arterial walls using averaged peak displacement (e.g., 3.7 μm vs 1.0 μm) and shear-wave velocity (e.g., 0.38 m/s vs 3.45 m/s).
• Validate elastography system performance using the gelatin phantom results included in the dataset.

Strengths

• Data is derived from a controlled experimental setup using a dual-frequency IVUS transducer with 8.5-MHz pushing and 31-MHz imaging elements.
• Includes quantitative results demonstrating the ability to distinguish a shear modulus difference of 1.6 kPa.
• Provides specific averaged measurements for key parameters like peak displacement (3.7 μm, 1.0 μm) and shear-wave velocity (0.38 m/s, 3.45 m/s) in different tissue types.

Limitations

• The dataset scope is limited to ex vivo validation, primarily using gelatin phantoms and one rabbit aorta sample.
• Sample size for biological tissue is small, with results from a single atherosclerotic rabbit aorta.
• The specific file formats, data structure (rows/columns), and total data volume are unknown.

Provenance

Source

Dryad digital repository.

Collection Method

Experimental data collected using a custom intravascular ultrasound elastography system on gelatin phantoms and ex vivo rabbit aorta.

Freshness

Last updated on 2020-06-24.