StudentShare solutions
Triangle menu

Parallel Imaging. Advantages And Disadvantages Of Parallel Imaging - Assignment Example

Nobody downloaded yet

Extract of sample
Parallel Imaging. Advantages And Disadvantages Of Parallel Imaging

Parallel imaging techniques were not commercially available until recently. They are on the verge of being explored in clinical applications. As has been widely cited, fundamentally, their potential clinical application involves either reduction in the acquisition time or improvement in spatial resolution. Improvements in the quality of images can be realized by reducing the single-shot spin echo sequences, and the fast spin-echo’s train length. Recent studies have hinted that parallel imaging is quite attractive for both vascular and cardiac application and proves more valuable as a 3-T body. Recent studies have shown that magnetic resonance imaging (MRI) can be devoted for establishing means of increasing the acquisition speed. It is worth noting, therefore, that impressive gains have been realized in an effort to make MRI more effective in its application. This paper seeks to provide an overview of fundamental parallel imaging concepts while illustrating on potential clinical applications. In this paper, merits, demerits of parallel imaging, as well as the comparison between SENSE and GRAPPA as parallel imaging technique would be emphasized. ...
Moreover, it has an advantage of not being able to alter the contrast behavior of the imaging sequence underneath (Boesiger, 2002). Described as one with the ability to decrease the time required to perform the image sequence, it causes an increase in the resolution provided there is a specific time measured or be able to perform the two (Boesiger, 2002). For instance in cases where a patient experiences acquisition time exceeding his/her breath-hold capacity, The Parallel imaging can help in addressing this issue through reducing the patient acquisition time by factor 2 or even greater Figure 01. (Glockner et al. 2004) Figure 01. The Improved visualization of segmental renal arteries in SENSE IMAGES. IN case, the patient was initially short in breath with difficulty in suspending the respiration for a standard acquisition time. The use of Parallel imaging helped reduce acquisition time from 19s to 10 seconds (Glocker et al, 2004). For the Parallel images that are used in spiral scanning and EPI, they have a faster redouts, which often help to reduce the phase error that often result from BO motion or inhomogenity (Griswold, Jakob, 2002). Through this it help mitigate the T2* decay effect. In this case, motion effects, as well as T2 decay can be reduced and can be reduced when RF echo trains apply. Within the image product, such an advantage can lead to reduced susceptibility, motion artifact, as well as in mitigating of the T2/T2* blurring (Hahn eta l. 2003). In this case, Parallel imaging helps in reducing motion artifact, alongside diminishing the venous contamination, in particular for regions in which there happens to be rapid venous return. For instance, in carotid and renal arteries (figure 02) (Glockner et al. 2004) Figure ...Show more

Summary

Parallel Imaging.
Parallel imaging is a family of techniques that often take advantage of spatial information in phased-array of radiofrequency coils in reducing the acquisition times in the magnetic resonance imaging…
Author : kathryne60
Parallel Imaging. Advantages And Disadvantages Of Parallel Imaging essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the assignment on your topic
"Parallel Imaging. Advantages And Disadvantages Of Parallel Imaging"
with a personal 20% discount.
Grab the best paper

Check these samples - they also fit your topic

Advantages and Disadvantages of Multiculturalism in UK
This paper analyses the advantages and disadvantages multiculturalism brings to UK people. Some people argue that multiculturalism should be encouraged, especially in this globalized world, whereas others are of the view that it should not be encouraged because of the possibility of repetition of 9/11 like incidents.
3 pages (750 words) Assignment
Improve the Magnetic Resonance Imaging
Furthermore, the available MRI machines used in our hospital are quite old. Considering these problems, several changes I wish to implement includes the process of designing and implementing the use of a more efficient appointment procedure, establishing an organizational culture that gives importance to two-way communication line, and the need to persuade the top management to consider investing on new MRI machines.
4 pages (1000 words) Assignment
EPI in MRI
The concept used in parallel imaging emphasizes on reducing phase encoding steps numbers (Heidemann et al., 2003). It does not compromise spatial resolution neither does it compromise the MR acquisition field of view. Some of the important characteristics that have made parallel imaging essential include faster acquisition, increased spatial resolution, reduced motion artefacts, reduced blurring, shorter echo time and reduced geometric distortion (Jack, 2013, p.29).
10 pages (2500 words) Assignment
Magnetic resonance imaging
A wide range of medical imaging modalities has emerged that utilize perfusion application in a variety of medical fields. Perfusion applications are used to assess the distribution of blood to a vascular bed. Either endogenous or exogenous tracers can be utilized to regulate hemodynamic quantities, for instance blood movement, blood capacity, and the average time it takes for the tracer molecule to be passed through the tissue, or the average time of transit (Luypaert et al.
11 pages (2750 words) Assignment
Perfusion-weighted imaging in MRI
Discuss the use of exogenous and endogenous tracers in perfusion-weighted imaging. Perfusion imaging mainly entails overseeing flow of blood throughout venous system. Mainly, this assumes varied distinct categories of tracers essential in conducting perfusion weighted imaging (Module 4, 2013).
9 pages (2250 words) Assignment
Ultrsound image modality
the field of view excludes many identifiable landmarks. This limitation makes ultrasound a much inferior technology when compared to CT Scan or MRI. To overcome these disadvantages, a
6 pages (1500 words) Assignment
SPECT imaging
SPECT scan gives a true image of the working of the organs, unlike X-rays that only depicts the state of the internal organ. Gamma rays are utilized for the purpose that is emitted from radioactive labeled drug.
2 pages (500 words) Assignment
Future Development Trend of The Digital Imaging and Communications in Medicine (DICOM) Standard
2 These standards keep changing every now and then, with the discovery of new medical practices and needs. Consequently, the future of DICOM standards is dynamic. Therefore, as the
1 pages (250 words) Assignment
Advance Computer Architecture: Parallel Computing
Despite the breaking down of the problems and parts of the problems, an overall control is also applied to the process to ensure that the ultimately purpose of parallel computing is
3 pages (750 words) Assignment
Advantages and Disadvantages of Business Regulations
Most of these regulations range from health to security besides varying significantly among states though crystallized by the international ones. In most
2 pages (500 words) Assignment
Hire a pro to write
a paper under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT
Comments (0)
Click to create a comment
Contact Us