Review on detection of tumor using Ultrasound Elastography

  Dharmik Chauhan,  Ghanshyam Parmar

Ultrasound elastography is an imaging technique used to image tissue elasticity and is often referred to as virtual palpation. This article reviews the principles of ultrasound elastography and its clinical applications. Originally, Elastography is a non-invasive method in which stiffness or strain images of soft tissue are used to detect or classify tumors by comparing pre- and post compression images. The tissue is compressed and relaxed using external force and pre- and post compression ultrasound images are acquired. This method is easy to use and also cheap as it does not require any additional hardware/circuits. While elastography can also be performed with MRI and CT, low cost and portability of ultrasound equipment makes it better choice for widespread application of elastography techniques in the medical imaging field. However, new techniques have been developed that use different excitation methods such as external vibration or acoustic radiation force to compress the tissues. Clinical use of elastography is increasing, with various applications including lesion detection and classification, treatment monitoring, fibrosis staging, vascular imaging and musculoskeletal applications. For successful clinical use in cancer diagnosis and monitoring the method should be robust to sources of decorrelation between ultrasound images.

Keywords- Elastography, Ultrasound, tumor, strain images, elastogram, RF data.

Unique Identification Number - IJEDR1402003
Page Number(s) - 1332-1338
Pubished in - Volume 2 | Issue 2 | June 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Dharmik Chauhan,  Ghanshyam Parmar,   "Review on detection of tumor using Ultrasound Elastography", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 2, pp.1332-1338, June 2014, Available at :http://www.ijedr.org/papers/IJEDR1402003.pdf