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Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...

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Related Experiment Video

Updated: Jun 27, 2026

A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy

A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy

Published on: May 1, 2020

New techniques in articular cartilage imaging.

Hollis G Potter¹, Brandon R Black, Le Roy Chong

¹Magnetic Resonance Imaging, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA. potterh@hss.edu

Clinics in Sports Medicine

|December 10, 2008

Summary

Magnetic resonance imaging (MRI) offers precise cartilage assessment using standardized sequences and advanced 3D modeling. Quantitative MRI techniques reveal tissue biochemistry and ultrastructure, aiding cartilage repair evaluation.

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Addressing Practical Issues in Atomic Force Microscopy-Based Micro-Indentation on Human Articular Cartilage Explants

Addressing Practical Issues in Atomic Force Microscopy-Based Micro-Indentation on Human Articular Cartilage Explants

Published on: October 28, 2022

Area of Science:

Orthopedics
Radiology
Biomedical Engineering

Background:

Cartilage assessment is crucial for joint health and repair.
Standardized MRI provides reliable cartilage morphology evaluation.
Advanced imaging techniques offer deeper insights into cartilage composition.

Purpose of the Study:

To highlight the role of MRI in cartilage assessment and repair.
To explore advanced MRI techniques for cartilage evaluation.
To establish MRI as an objective tool for regenerative procedures.

Main Methods:

Utilizing standardized magnetic resonance imaging (MRI) pulse sequences.
Employing three-dimensional (3D) modeling for joint surface and thickness analysis.
Applying quantitative MRI techniques including T2 mapping, T1 rho, and dGEMRIC.
Implementing diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI).

Main Results:

Standardized MRI enables accurate and reproducible cartilage morphology assessment.
3D modeling facilitates semiautomated joint surface and thickness measurements.
Quantitative MRI techniques provide noninvasive biochemical information.
DWI and DTI reveal regional cartilage ultrastructure variations.

Conclusions:

MRI is essential for objective assessment of cartilage regenerative procedures.
Advanced MRI techniques offer critical data on cartilage biochemistry and ultrastructure.
Further research correlating quantitative MRI with material properties may predict tissue function.