Magnetic Resonance Imaging

Ethics, the moral principles that guide one's compass, is a crucial topic throughout history and more so in today's technological world. As our studies are centered around this, the author will discuss the ethical implications in his profession, nondestructive testing or simply NDT. In this essay, the author will discuss what NDT is, why ethics are an integral part of this profession and the implications a breach of ethics may have.

This statement is true, but MRI scans provide distinct advantages over other forms of imaging. They do not subject the patient to radiation as many other types of imaging such as CT scans and molecular imaging do. Radiation is harmful because if cells are exposed to high doses of radiation over a short period of time, they may be killed. On the other hand, low doses of radiation over a longer period of time can result in damage or change to cell tissues. MRI’s eliminate as they do not use ionizing radiation. In agreement with the advantages of MRI, Kidwell et al. claim that MRI scans are just as accurate as CT scans in the detection of severe hemorrhage in patients with acute focal stroke symptoms; however, when it comes to detection of chronic intracerebral hemorrhage, MRI scans are much more accurate than CT scans (1823). Most patients hope to receive the best care they can and in some cases, like chronic intracerebral hemorrhaging, magnetic resonance imaging is the best form of medical imaging available. Unfortunately, if they have a tattoo, they may not be eligible to undergo a

Clinical medicine and science are inherently inseparable entities. Scientific advances and discoveries will perpetually influence any career in the medical profession. This was an idea I learned early on during my undergraduate education. However, my own interest in science spans further than using it as a means to an end. The process of developing theories and conducting experiments enthralls me. I not only strive to apply scientific findings to treat my future patients, but also hope to gain inspiration from my patients to advance scientific knowledge. I believe the ideal way to apply my interests, and to best serve my community, is as a physician-scientist. The MD Anderson 1st Year Medical Student Program would offer me the opportunities

Nuclear medicine is a section of medical imaging that uses radioactive medication known as radiotracers or radiopharmaceutical (Understanding nuclear medicine, 2009). Radiotracers are given to the patient through injection, swallowing or inhalation, which makes the body radioactive for a short time. The radiation is detected by a special camera, and then the image is produced. (Cain, 2013) NM is used to treat and diagnose diseases by looking to the physiology of the body (Understanding nuclear medicine, 2009). NM includes Single Photon Emission Computed Tomography (SPECT), Positron Emission Tomography (PET) scans, cardiovascular imaging and bone scanning (Morgan, 2012).

During these studies, the researchers examined the effects of some of the radiation from a CT scan on cells. The radiation from the CT scan damaged them slightly but only if there was a very high amount of radiation exposure. Also some cardiology experts have combined two types of imaging techniques to produce a 3D model of a person 's heart. This is the first time CT and 3DTEE has been used together like this and they are also trying to find a way to combine it with an MRI

The nervous system is the body's decision and communication center. The central nervous system (CNS) is made of the brain and the spinal cord and the peripheral nervous system (PNS) are made of nerves. The brain is made of three main parts which are the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus. The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons, and medulla. Often the midbrain, pons, and medulla are referred to together as the brainstem. The cerebrum or cortex is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections which called lobes. These

Category two findings: The complications of several metabolic disorders manifest themselves in the thoracic spine. Computerized tomographic (CT) scanning is ideal for defining bony changes associated with these disorders, while magnetic resonance imaging (MRI) is the most appropriate for identifying soft tissue lesions.

Participants: Last 25 patients from DOTCODE trial were studied; 10 were in the OSA group, 15 were in the non-OSA group, and 19 had MRI.

The main noticeable historical features of the case include the patient’s depressed mood, described sleep disturbance, diminished interest in certain activities, feeling of guilt, suicidal thoughts, and reduced energy and concentration. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria for major depressive disorder, a patient must present at least 5 of the symptoms mentioned above for at least 2 weeks and 1 of the symptoms must include anhedonia or depressed mood (Ottesen, 2013). Furthermore, the symptoms of depression cannot not be attributable to other psychological/ psychotic disorders such as, schizoaffective disorder, delusional disorder, or mania. The DSM-5 further categorizes depressive disorder as mild, moderate, or severe, with partial or full remission (Ottesen, 2013).

PIVD stands for prolapsed intervertebral disc. It occurs due to the outgrowth of the disc. This outgrowth is the nucleus pulposus that seeps through a shred in the annulus fibrosus.

Low back pain is a major issue across the world and it can be either specific or nonspecific (s6).1 Specific low back pain refers to any diagnosis that can be attributed to an infection, disease, trauma, injury, or structural deformity. Specific low back pain diagnosis is rare and only makes up 15 to 20 percent of low back pain cases, meaning most back pain is nonspecific (s6).1 Nonspecific low back pain is pain localized in the area of the back below the margin of the last ribs and above the inferior gluteal lines, which could include lower limb pain and numbness.2 (s5) Nonspecific low back pain is a major problem around the world and is one of the main causes of disability (s3).3 The characteristics of nonspecific LPB are heavy pain that

Progress in diagnostic imaging has contributed significantly to improving health care systems worldwide. One of these advances is digital radiography(4). In the past two decades, digital radiography has replaced film-screen radiography in many medical imaging centers. Today, manufacturers provide a diversity of digital imaging assortment

In diagnosing the cause of neck pain, it is important to review the history of the symptoms. In reviewing the history, the doctor will note the location, intensity, duration, and radiation of the pain. Is the pain worsened or improved with turning or repositioning of the head?

Radiation can be defined as the energy travelling through space which comes from a source and may be able to penetrate various materials. There are two types of radiation and they are the non-ionizing and ionizing radiation. Non-ionizing radiation consists of light, radio and microwaves. Whereby ionizing radiation can produce charged particles in matter, and ionizing radiation is produced by unstable atoms. The difference between unstable atoms and stable atoms is that unstable atoms have an excess of energy or mass or both. When the atoms have unstable nuclei, they are said to be radioactive. The atoms have to give off, or emit, the excess energy or mass in order to reach stability. These emissions are called radiation.

The experiment’s objective is to show that travellers do not need to remove worn accessories and footwear during the screening procedure (Caswell, 2010).