Abstract
We examined the relationship between stress wave velocities and the lung density. The discrete cubic spline wavelet was used to calculate time delay and frequency character of the wave that is propagated on the surface of 3 canine lungs. The analysis verified previous results ascertaining the linear elastic model. As vascular volume, extra vascular lung water and lung density increased, wave velocities were decreased; that is wave velocities were inversely proportional to the square root of the lung density. The analysis verified the exact time-frequency relationship for the dominant stress wave velocity (i.e. shear or Rayleigh-Type Surface wave velocity) and showed other transit times besides the previously observed short and long ones are not valid.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2141-2144 |
| Number of pages | 4 |
| Journal | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
| Volume | 3 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5) - Munich, Ger Duration: Apr 21 1997 → Apr 24 1997 |
ASJC Scopus subject areas
- Software
- Signal Processing
- Electrical and Electronic Engineering