Ultrasound indentation of bovine knee articular cartilage in situ

We have earlier developed a handheld ultrasound indentation instrument for the diagnosis of articular cartilage degeneration. In ultrasound indentation, cartilage is compressed with the ultrasound transducer. Tissue thickness and deformation are calculated from the A-mode ultrasound signal and the s...

Full description

Saved in:
Bibliographic Details
Published in:Journal of biomechanics 2003-09, Vol.36 (9), p.1259-1267
Main Authors: Laasanen, Mikko S., Saarakkala, Simo, Töyräs, Juha, Hirvonen, Jani, Rieppo, Jarno, Korhonen, Rami K., Jurvelin, Jukka S.
Format: Article
Language:English
Subjects:
Animals
Articular cartilage
Cartilage, Articular - diagnostic imaging
Cartilage, Articular - metabolism
Cattle
Densitometry
Diagnostics
Elasticity
Equipment Design
Feasibility Studies
Glycosaminoglycans - metabolism
Indentation
Knee Joint - diagnostic imaging
Knee Joint - metabolism
Reproducibility of Results
Ultrasonography - instrumentation
Ultrasound
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have earlier developed a handheld ultrasound indentation instrument for the diagnosis of articular cartilage degeneration. In ultrasound indentation, cartilage is compressed with the ultrasound transducer. Tissue thickness and deformation are calculated from the A-mode ultrasound signal and the stress applied is registered with the strain gauges . In this study, the applicability of the ultrasound indentation instrument to quantify site-dependent variation in the mechano-acoustic properties of bovine knee cartilage was investigated. Osteochondral blocks ( n=6 per site) were prepared from the femoral medial condyle (FMC), the lateral facet of the patello-femoral groove (LPG) and the medial tibial plateau (MTP). Cartilage stiffness (dynamic modulus, E dyn), as obtained with the ultrasound indentation instrument in situ, correlated highly linearly ( r=0.913, p
ISSN:0021-9290
1873-2380
DOI:10.1016/S0021-9290(03)00163-5