Interventional MR systems Assignment Example | Topics and Well Written Essays - 2250 words

Interventional MR systems - Assignment Example The most critical challenges in using this technique have thus been discussed followed by a conclusion. Keywords: Interventional MR, iMRI, intraoperative MRI, MRI, Magnetic Resonance, Operating Room, imaging Table of Contents: Introduction 3 Definition and Classification 3 Classification 5 Safety Considerations 7 Advancements 8 Improved MR scanner 8 Interventional pulse sequencing and adaptive imaging 9 MR compatible instruments, tracking and visualisation 9 Augmented reality introduced in surgical system 11 Challenges 12 Conclusion 14 References 15 Introduction Magnetic resonance or MR techniques are extensively used in the medical world for imaging purpose. Magnetic resonance imaging or MRI is reliable, precise and detailed. Also, advanced MRI implementation can culminate at three dimensional or 3D view of a patient’s tissue system. Previous to the development of interventional MRI or iMRI, most of the existing medical imaging technologies were primarily used for the purpose of diagnostic processes. But MRI proves to be more reliable than even the most advanced technologies like computerised tomography or CT scan (Blanco Sequeiros et al 2005). Therefore, experts are now considering expanded intraoperative usage of MR technologies, and iMRI has become a prime area of research in this field. In this paper, iMRI is defined and classified in a detailed manner. Next, safety considerations are discussed. After that, important advancements in the field of iMRI are discussed. Contextually, challenges in the way of optimizing iMRI are detailed. The paper ends in a concise conclusion. The overall discussions in this paper are focussed on iMRI and the technology of magnetic resonance is elaborated wherever deemed necessary. Definition and Classification Initially, magnetic resonance imaging or MRI was utilised to find out and examine greater intricacies of tissue structure. The primary aim was to understand patient morphology with the help of case specific detail s in furtherance with increase in scientific knowledge. Through the 1990s, research in magnetic resonance instrumentation targeted at finding out new methods to acquire detailed images more rapidly at higher resolutions to harness greater intricacy in understand patient condition and tissue abnormalities. The basic principle of the function of a conventional MRI device is shown in Figure – 1. (Coyne 2013; Brown and Semelke1999) Figure – 1: Basic function of a conventional MRI system (Coyne 2013) So conventional MRI and Interventional MRI (may also be referred to as intraoperative MRI) or iMRI are completely different techniques although the basic technology behind them is the same. MRI is used in a largely stationary environment to meet diagnostic aims. But iMRI aims at not only examining but also treating the abnormal tissues diagnosed or discovered during an operative procedure. Furthermore, iMRI can both guide and improve the treatment process, including procedures in an operation room (OR). (Blanco Sequeiros et al 2005; Lufkin, Gronemeyer, and Seibel 1997) Hushek et al (2008) state that iMRI applications have facilitated development of various improved ancillary devices and techniques that have enriched medical technology and biophysics holistically. For example, continuous research in the field of iMRI led to the invention of advanced pulse sequencing to establish a rapid imaging system with the help of an MR scanner. Furthermore, iMRI

Final exam study sheet Research Paper Example | Topics and Well Written Essays - 500 words

Final exam study sheet - Research Paper Example Explanation- This is an ironical statement and also the mostly used in the entire story since it is the only answer that Bartle by provides for every question asked regardless whether he is to anything or not. Using the word ‘prefer’ does not necessarily mean that Bartleby would do as expected despite what he claimed to prefer. Quote two (unreliable narrator)-Dead letters! Does it not sound like dead men? Conceive a man by nature and misfortune prone to a pallid hopelessness; can any business seem more fitting to heighten it than that of continually handling these dead letters, and assorting them for the flames? Explanation- In this quote, it is evident that the narrator has ways of involving his audience through asking of questions hence providing a chance for them to flow with him. He uses this technique in explaining the reasons behind the character traits of Bartleby and the reason that led to his job dismissal. Quote one (feminism)-â€Å"But now there was a dull stare in her eyes, whose gaze was fixed away off yonder on one of those patches of blue sky. It was not a glance of reflection, but rather indicated a suspension of intelligent thought.† Explanation- The above quotes explains facts on feminism whereby the author shows the different reactions among women on receiving sad news. The reaction of Louise shows how deeply the news reached to her and the mannerisms in which her reaction was different from that of other people. In her gaze, there is a difference that can be considered shrewder and even incredibly active. Explanation-this quote is ironical in that the previous day before the news were brought Louise prayed that life would be long yet it is during this time that her loved ones die. Also, in the prior days she had always prayed that her days would be shorter. Explanation- This quote is ironical in