We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

To demonstrate a number of artefacts encountered in the practice in ultrasound, which should enhance understanding of the physical principles of diagnostic ultrasound - Essay Example

Comments (0)
Summary
This study shall discuss the number of artefacts encountered in the practice in ultrasound, which should enhance understanding of the physical principles of diagnostic ultrasound. This literature review will focus on three artefacts which are chosen because of relevance…
Download full paper
GRAB THE BEST PAPER
To demonstrate a number of artefacts encountered in the practice in ultrasound, which should enhance understanding of the physical principles of diagnostic ultrasound
Read TextPreview

Extract of sample
To demonstrate a number of artefacts encountered in the practice in ultrasound, which should enhance understanding of the physical principles of diagnostic ultrasound

Download file to see previous pages... Ultrasound artefacts are therefore sonographic display errors which are caused by complicated physical interactions between the ultrasound and the human tissue; issues in the limits of the ultrasound process also impact on the manifestation of the artefact (Prosono, 2009). Failing to detect these artefacts can cause confusion and mistakes in diagnosis. Ensuring effective detection and interpretation of artefacts as well as the physical elements of their origin will allow identification, as well as promote correct diagnosis. In other words, the accurate interpretation of artefacts would likely help establish correct diagnosis, and provide effective tools in the identification of images within the imaging field (Hoff, et.al., 1989). The ultrasound machine has different assumptions in its image generation. These assumptions include the fact that ultrasound beams only traverse a straight line via a fixed rate of attenuation; the speed of the sound in all the body tissues measures at 1540 m/s; the beam is very thin, with most of its echoes coming from its central axis; and the impact of the reflector is based on the time which the sound would travel from the transducer to the reflector and back again (Pichamuthu, 2009).
There are different types of artefacts. First, the reverberation artefact is seen when the ultrasound is constantly reflected within two different reflective surfaced (George, 2012). Second, is the mirror image artefact. This is a kind of reverberation artefact seen at highly reflective systems like the lungs and descending aorta. The false image is at the opposite side of the reflector due to the mirror-like effect. (George, 2012). Third, is the side-lobe artefact where side lobe beams are seen at the edges of the transducer element and reflects in a direction different from the main beam (George, 2012). Fourth, the multiple artefact is seen when the direction of the ultrasound beam is different. Fifth, beamwidth artefacts are seen when echoes of the beam would manifest as though they come from the centre (George, 2012). This is seen when the beam goes through fluids. Propagation speed errors are also considered artefacts. These are seen when the media where the beam would penetrate would not propagate at 1540 m/s; as a result it causes echoes at wrong depths on the displayed image. Acoustic shadowing may be seen when the beam cannot pass through an area “deep to a strongly reflecting or attenuating structure” (George, 2012). Finally, near field clutter can also cause artefacts. This is caused by acoustic noise in the areas of the transducer which then leads to high amplitude oscillations of related elements (George, 2012). These artefacts usually constantly change in ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Intraoperative Abdominal Ultrasound: Animals Need Ultrasound Too
The procedure is very useful in not only defining the extent of the disease, but also in providing guide to various hepatic resections and also for percutaneous ablative and laparoscopic techniques. There is no such preoperative study that can have sensitivity and specificity similar to intraoperative ultrasoun.
13 Pages(3250 words)Research Paper
Critically evaluate the efficancy of diagnostic ultrasound in the diagnosis and manangement of liver disease
This is very much true for liver cirrhosis. In order to adequately diagnose it as a disease, various processes and tests have to be carried out. This paper shall establish a critical evaluation of studies carried out on the application of ultrasound in the diagnosis and management of liver cirrhosis.
16 Pages(4000 words)Essay
Microcavitation in Ultrasound
1). Humans can hear a frequency range of 20 to 20,000 Hz (par. 1). Studies have revealed that people at a younger age can hear some frequencies of ultrasound but such ability decreases as a person becomes older (“About Ultrasound”, par. 1). Ultrasound waves produce energy that penetrates the tissues, and converted to heat (ranging to an increase in temperature from 0.5 degree to 1 degree centigrade) (Roberts, par.
2 Pages(500 words)Essay
Compare and contrast the scientific principles of Magnetic resonance imaging (MRI) and ultrasound
It is a common knowledge that ultrasound is cheaper, more portable, more rapidly available in emergency settings and generates real-time images, while magnetic resonance imaging provides greater detail, penetration to hard-to-penetrate areas in ultrasound, the dependence on magnetism and more sophisticated and expensive equipment.
6 Pages(1500 words)Essay
Basic Principles of Ultrasound

The author states that the tool developed will illustrate all the procedures that are followed in Ultrasound diagnosis, indicating what aspects of the Ultrasound are involved in each stage and how the stages ends up giving an ultrasound image that is used to visualize various body organs and tissues that are of interest to the medical practitioners.

 

10 Pages(2500 words)Dissertation
UltraSound - Current Disruptive Innovation and Theories
By incorporating theories developed by Utterback, Christensen, and Scott, to mention a few, I evaluate Ultrasound as a disruptive theory, dominant design as well as the product’s life cycle. Several terms, statements, and theories are used in different disciplines to define and describe disruptive technologies.
3 Pages(750 words)Essay
Ultrasound risk
This paper will precisely present the risks involved in diagnostic ultrasound and in addition to this, what precautions the patients can take will also be highlighted in this paper. "An ultrasound scan involves transmitting high frequency sound waves through the uterus.
5 Pages(1250 words)Essay
The main uses of Ultrasound in an imaging department and a vascular department
Most of the ultrasound examinations are done through a sonar devise placed outside the body while other examinations involve placing a devise inside the body. Many researches have taken place in order to fully gain the advantages of ultrasound in imaging department. According
5 Pages(1250 words)Essay
A review of the current state of 3D & 4D ultrasound
Consequently, because of how different its properties were compared to other diagnostic agents, the information obtainable through its use usually turns out to be unique. Diagnostic ultrasound,
20 Pages(5000 words)Essay
Risks associated with ultrasound procedure

Ultrasonic imaging involves mechanical energy, in which pressure waves pass through tissue. An image is formed by the reflection and dispersing back to the transducer. It involves heating of tissues due to the absorption of ultrasonic waves by the tissues. Some heat is also generated at the surface of the transducer.

7 Pages(1750 words)Essay
Let us find you another Essay on topic To demonstrate a number of artefacts encountered in the practice in ultrasound, which should enhance understanding of the physical principles of diagnostic ultrasound for FREE!
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us