Preview

Abstract Nuclear Medicine: Radiopharmacology

Good Essays
Open Document
Open Document
12688 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Abstract Nuclear Medicine: Radiopharmacology
Física da Radiação, 1º semestre, IST, 2010/2011 1 Radiopharmacology

Radiopharmacology
Diogo Ferreira, diogo.cunha.ferreira123@gmail.com MSc student in Biomedical Engineering, Instituto Superior Técnico, student no58548

Abstract Nuclear Medicine is the branch of medicine concerned with the use of radio-nuclides in the study and the diagnosis of diseases, eg. the assessment of organ function, detection and treatment of some diseases or monitoring of treatment’s effects. It provides physiological (not available from other imaging modalities) and diagnostic information. In the other hand, it uses very small amounts of radioactive material (radiopharmaceuticals, RP) that is introduced into the body and acts as a tracer. Information obtained using nuclear medicine techniques is more comprehensive than other imaging procedures because it demonstrates organ function, not just his structure. The result: many diseases (eg, cancer) may be diagnosed much earlier. In this article, will be discussed questions such as “What are RPs?”, “What is the difference between gamma-decay and beta-decay for nuclear medicine?”, “What kind of RPs are there in therapy or diagnosis?”, “How must be the ideal RP?”, “How can we produce RPs?” or “How can we detect the RPs using techniques, as PET?”. Finally, the bone-seeking therapeutic RP will be discussed. In fact, this technique is used on the basis of radionuclide’s particulate emissions (primarily low to intermediate beta emission). Outline 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. Nuclear Medicine Radioactive processes and interaction with matter Radiopharmaceuticals, Reactor-Produced Radionuclides and Generator systems Therapeutic RPs Diagnosis RPs Physical Principles of PET PET RPs Bone-seeking therapeutic RPs Development of new RPs References imaging of the whole body based on certain cellular receptors or functions, as Ga-67 scan, used in PET scan, [1,14]. Diagnostic tests in nuclear medicine exploit the way that the body handles substances



References: Table 1A. Perfusion RPs actually used in diagnosis (in Portuguese), [2] Física da Radiação, 1º semestre, IST, 2010/2011 21 Radiopharmacology Física da Radiação, 1º semestre, IST, 2010/2011 22 Radiopharmacology Table 5A

You May Also Find These Documents Helpful

  • Powerful Essays

    6) Describe one example where radioisotopes can be used as a diagnostic tool in medicine.…

    • 1644 Words
    • 7 Pages
    Powerful Essays
  • Satisfactory Essays

    Approximately 85 percent of diagnostic imaging procedures in nuclear medicine use this isotope. Technetium-99m is made from the synthetic substance Molybdenum-99 which is a by-product of nuclear fission. It is because of its parent nuclide, that Technetium-99m is so suitable to modern medicine. Molybdenum-99 has a half-life of approximately 66 hours, and decays to Tc-99m, a negative beta, and an antineutrino. This is a useful life since, once this product (molybdenum-99) is created, it can be transported to any hospital in the world and would still be producing technetium-99m for the next week. The betas produced are easily absorbed, and Mo-99 generators are only minor radiation hazards, mostly due to secondary X-rays produced by the…

    • 448 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    |Article Title: |Original Research , Informing Parents About CT Radiation Exposure in Children : It's OK to Tell Them |…

    • 3227 Words
    • 13 Pages
    Powerful Essays
  • Good Essays

     Most of the atom’s mass is concentrated in a small region, the nucleus, at the centre of the atom.…

    • 3903 Words
    • 25 Pages
    Good Essays
  • Good Essays

    Radioisotopes allow treatment and diagnosis of medical illnesses without the cost and trauma of open surgery (which carries risks like infection, accidents, and long recovery periods). The use of Tc-99m produces hot-spot images, which reveal early signs of disease and map how organs are functioning. The low energy gamma radiation it emits, the small dose in which it's injected and it a short half-life (6hours), minimises damage to tissues. The patient's total exposure to radiation is less than in an X-ray. So far, there have been no reported side effects.…

    • 483 Words
    • 2 Pages
    Good Essays
  • Better Essays

    DISCUSSION: Legally under English laws, when a patient is not competent and lacks the capacity to make decisions, they must be made on his behalf, in his best interests. This was evident in the case of Charlie. According to (Children’s Act 1989), the parents presumes the authority to decide on the best interests of their minor and make decisions on behalf of their children. It was rightly so to have led to believe that the nucleoside therapy was not invasive and caused no severe damage to the TK2 deficient patients to whom it had been administered.…

    • 1005 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Bio book outline

    • 2454 Words
    • 12 Pages

    Medical diagnosis and treatment: Used to tag chemicals that accumulate in the body Phosporous in bones, inject a tracer isotope. PET scanner produces an image of where the radiation…

    • 2454 Words
    • 12 Pages
    Good Essays
  • Good Essays

    Biology Radioisotopes

    • 290 Words
    • 2 Pages

    Positron Emission Tomography (PET) uses a camera to detect gamma rays emitted from the body and to pinpoint their exact location. Disease may be indicated if an organ takes up too much isotope, or not enough, or if there is an unusual pattern or rate of movement of the isotope through the body.…

    • 290 Words
    • 2 Pages
    Good Essays
  • Best Essays

    Annotated Bibliography

    • 1753 Words
    • 8 Pages

    Fischer, D.R., 2013. Musculoskeletal Imaging Using Fluoride PET. Seminars in Nuclear Medicine, [e-journal] 43(6). Available through: THOL1Search website [Accessed 5 April 2014].…

    • 1753 Words
    • 8 Pages
    Best Essays
  • Satisfactory Essays

    Nuclear medicine and radiology are the medical techniques that involve the use of radiation or radioactivity to diagnose, treat and prevent disease. While radiology has been used for close to a century, the term "nuclear medicine" began to be used around 50 years ago.…

    • 231 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Nuclear medicine is a branch of medical imaging that uses small amounts of radioactive material to diagnose and determine the severity of or treat a variety of diseases, including many types of cancers, heart disease, gastrointestinal, endocrine, neurological disorders and other abnormalities within the body. Because nuclear medicine procedures are able to pinpoint molecular activity within the body, they offer the potential to identify disease in its earliest stages as well as a patient’s immediate response to therapeutic interventions.…

    • 466 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Diagnostic Imaging

    • 807 Words
    • 4 Pages

    The efficacy of diagnostic imaging resembles a double-edged sword in the medical industry. A radiographer trained to image a patient correctly must use all knowledge to keep the radiation level at its lowest and safest level to produce the best quality image possible. However, the radiation level still has an effect on the patient that can go unseen by the naked eye. Ionizing radiation produced by x-ray, gamma rays, alpha & beta rays, can have an effect on cellular structure and its reproduction process, as well as its DNA, the coding system to cellular life. The amount of damage can depend upon the type of ionizing radiation, its energy and the total amount of radiation absorbed by radiosensitive cells.…

    • 807 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Radiology is a medical field that supports imaging to examine and treat illnesses seen within the body. There are collection of imaging methods such as X-ray radiography, ultrasound, computed tomography, nuclear medicine together with positron release tomography and magnetic quality imaging are used to diagnose and/or treat illnesses. Interventional radiology is the performance of medical judgments with the direction of imaging technologies. The first radiation fatality occurred in 1904, just nine short years after X-Rays were first discovered by Wilhelm Roentgen. By 1910, there had been hundreds of cases of severe X-ray burns, some leading to death. It took the X-Ray public more than 30 years from the time of Roentgen's finding to start working…

    • 118 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Radiation Oncology Report

    • 690 Words
    • 3 Pages

    The year 2010 was a watershed moment in the field of radiation oncology, due to articles written by Walt Bogdanich in the New York Times. These articles critiqued leadership, radiation dose, and patient safety, and accused the community of using unsafe practices (Washington & Leaver, 2016). While there had been previous accidents which injured and killed patients during the 1980s, those few accidents were attributed to equipment faults, as computer equipment was merged with treatment delivery equipment. The deaths that the Bogdanich articles referred to could not be written off as faults of equipment or devices, but rather due to unsafe practices which were not addressed. The American Society for Radiation Oncology (ASTRO) and the ASRT,…

    • 690 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    I am for the use of radiation because it can be used in many good ways. My sub group is medicine. I am researching a radiation treatment used for helping cancer patients. This is a good use of radiation because it kills the cancer cells and may even cure the cancer. It doesn't always cure it but it will slow the process down.…

    • 320 Words
    • 2 Pages
    Satisfactory Essays