Podcast
Questions and Answers
What is the primary reason alpha or beta particles are not used in imaging?
What is the primary reason alpha or beta particles are not used in imaging?
- They have high energy photons
- They are difficult to detect
- They have a short range in tissue (correct)
- They are not monoenergetic
What is the ideal energy range for gamma rays in imaging?
What is the ideal energy range for gamma rays in imaging?
- 50-300 keV (correct)
- 5000-10000 keV
- 1000-2000 keV
- 300-500 keV
Why is it desirable for a radionuclide to emit monoenergetic gamma rays?
Why is it desirable for a radionuclide to emit monoenergetic gamma rays?
- To increase spatial resolution
- To attach to pharmaceuticals
- To eliminate scattered radiation (correct)
- To increase specific activity
What is a desirable property of a radionuclide for imaging?
What is a desirable property of a radionuclide for imaging?
Why is it desirable for a radionuclide to be readily available at the hospital site?
Why is it desirable for a radionuclide to be readily available at the hospital site?
What is a desirable property of a radiopharmaceutical?
What is a desirable property of a radiopharmaceutical?
What is high specific activity characterized by?
What is high specific activity characterized by?
What should a radionuclide ideally decay to?
What should a radionuclide ideally decay to?
What is the result of forcing an additional neutron into a stable nucleus?
What is the result of forcing an additional neutron into a stable nucleus?
What is the purpose of a medical minicyclotron?
What is the purpose of a medical minicyclotron?
What is the result of forcing an additional proton into a stable nucleus, knocking out a neutron?
What is the result of forcing an additional proton into a stable nucleus, knocking out a neutron?
What is the change in the atomic number of a nucleus when an additional neutron is forced into it?
What is the change in the atomic number of a nucleus when an additional neutron is forced into it?
What is the half-life range of radionuclides produced in a cyclotron?
What is the half-life range of radionuclides produced in a cyclotron?
What is the target material in a cyclotron?
What is the target material in a cyclotron?
What is the result of the reaction 98Mo + n → 99Mo?
What is the result of the reaction 98Mo + n → 99Mo?
How many known radionuclides are there?
How many known radionuclides are there?
What type of decay is represented in the graph of the number of nuclei present as a function of time?
What type of decay is represented in the graph of the number of nuclei present as a function of time?
What is the physical half-life of a radionuclide unaffected by?
What is the physical half-life of a radionuclide unaffected by?
What is the range of physical half-lives for radionuclides?
What is the range of physical half-lives for radionuclides?
What is a pharmaceutical that has been labelled with a radionuclide referred to as?
What is a pharmaceutical that has been labelled with a radionuclide referred to as?
What is the purpose of the metabolic properties of a radiopharmaceutical in medical imaging?
What is the purpose of the metabolic properties of a radiopharmaceutical in medical imaging?
What is the term for the half-life of a radionuclide when it is used in medical imaging?
What is the term for the half-life of a radionuclide when it is used in medical imaging?
What is the purpose of the physical half-life of a radionuclide in medical imaging?
What is the purpose of the physical half-life of a radionuclide in medical imaging?
Why is a radionuclide with a half-life of less than a minute useless in medical imaging?
Why is a radionuclide with a half-life of less than a minute useless in medical imaging?
What is the primary criteria for a radiopharmaceutical to be effective?
What is the primary criteria for a radiopharmaceutical to be effective?
What is the purpose of using a generator in radiopharmaceuticals?
What is the purpose of using a generator in radiopharmaceuticals?
What percentage of radionuclide imaging uses Technetium-99m (99mTc)?
What percentage of radionuclide imaging uses Technetium-99m (99mTc)?
What is the half-life of Technetium-99m (99mTc)?
What is the half-life of Technetium-99m (99mTc)?
What is the energy of the gamma emission of Technetium-99m (99mTc)?
What is the energy of the gamma emission of Technetium-99m (99mTc)?
What is the purpose of the exchange column of alumina beads in the Technetium generator?
What is the purpose of the exchange column of alumina beads in the Technetium generator?
What is the half-life of the parent 99Mo in the Technetium generator?
What is the half-life of the parent 99Mo in the Technetium generator?
Why is it possible to administer a reasonably large activity of Technetium-99m (99mTc)?
Why is it possible to administer a reasonably large activity of Technetium-99m (99mTc)?
What happens to the daughter and parent in a technetium generator?
What happens to the daughter and parent in a technetium generator?
What is the purpose of eluting the technetium-99m generator?
What is the purpose of eluting the technetium-99m generator?
What happens to the activity of technetium-99m in the column after 24 hours?
What happens to the activity of technetium-99m in the column after 24 hours?
How often can the technetium-99m generator be eluted?
How often can the technetium-99m generator be eluted?
What is the typical lifespan of a technetium-99m generator?
What is the typical lifespan of a technetium-99m generator?
What is sodium pertechnetate-99mTc used for?
What is sodium pertechnetate-99mTc used for?
What is the purpose of the pressure system in the technetium generator?
What is the purpose of the pressure system in the technetium generator?
What is the halflife of technetium-99m in the column?
What is the halflife of technetium-99m in the column?
What is left behind on the column after elution?
What is left behind on the column after elution?
Why is the technetium-99m generator replaced after a week?
Why is the technetium-99m generator replaced after a week?
What is the primary advantage of 123I over 131I for imaging?
What is the primary advantage of 123I over 131I for imaging?
What is the primary use of Xenon-133 in medical imaging?
What is the primary use of Xenon-133 in medical imaging?
What is the half-life of Krypton-81m, a radionuclide used in pulmonary ventilation studies?
What is the half-life of Krypton-81m, a radionuclide used in pulmonary ventilation studies?
Which of the following radionuclides is used in brachytherapy seeds?
Which of the following radionuclides is used in brachytherapy seeds?
What is the method of production for Xenon-133?
What is the method of production for Xenon-133?
What is the purpose of administering potassium perchlorate in radionuclide imaging?
What is the purpose of administering potassium perchlorate in radionuclide imaging?
What is the radionuclide labelled compound used for cerebral blood flow imaging?
What is the radionuclide labelled compound used for cerebral blood flow imaging?
What is the radionuclide labelled compound used for renal studies?
What is the radionuclide labelled compound used for renal studies?
What is the purpose of using autologous red cells in radionuclide imaging?
What is the purpose of using autologous red cells in radionuclide imaging?
What is the radionuclide used for biliary studies?
What is the radionuclide used for biliary studies?
What is the half-life of Gallium-67 (67Ga) used in tumor detection?
What is the half-life of Gallium-67 (67Ga) used in tumor detection?
What is the energy of the gamma rays emitted by Indium-111 (111In) used in labeling white blood cells and platelets?
What is the energy of the gamma rays emitted by Indium-111 (111In) used in labeling white blood cells and platelets?
What is the common use of 18F, a positron emitter, in PET scans?
What is the common use of 18F, a positron emitter, in PET scans?
What is the half-life of Indium-113m (113mIn) used sometimes instead of Indium-111?
What is the half-life of Indium-113m (113mIn) used sometimes instead of Indium-111?
What is the energy of the gamma rays emitted by Indium-113m (113mIn)?
What is the energy of the gamma rays emitted by Indium-113m (113mIn)?
What is a desirable property of a radionuclide for imaging in terms of gamma ray energy?
What is a desirable property of a radionuclide for imaging in terms of gamma ray energy?
Why is it desirable for a radionuclide to have a high specific activity?
Why is it desirable for a radionuclide to have a high specific activity?
What is a desirable property of a radiopharmaceutical in terms of localisation?
What is a desirable property of a radiopharmaceutical in terms of localisation?
Why are alpha or beta particles not used in imaging?
Why are alpha or beta particles not used in imaging?
What is a desirable property of a radionuclide in terms of attachment to a pharmaceutical?
What is a desirable property of a radionuclide in terms of attachment to a pharmaceutical?
What happens when an additional neutron is forced into a stable nucleus?
What happens when an additional neutron is forced into a stable nucleus?
What type of accelerator is used to produce radionuclides with a neutron deficit?
What type of accelerator is used to produce radionuclides with a neutron deficit?
Why are medical minicyclotrons designed?
Why are medical minicyclotrons designed?
What is a characteristic of radionuclides produced in a cyclotron?
What is a characteristic of radionuclides produced in a cyclotron?
Why is it necessary to have a cyclotron near the hospital site?
Why is it necessary to have a cyclotron near the hospital site?
What is the characteristic of the physical half-life of a radionuclide?
What is the characteristic of the physical half-life of a radionuclide?
What is the purpose of a pharmaceutical labeled with a radionuclide in medical imaging?
What is the purpose of a pharmaceutical labeled with a radionuclide in medical imaging?
What is the term for a pharmaceutical that has been labeled with a radionuclide?
What is the term for a pharmaceutical that has been labeled with a radionuclide?
What is the half-life range of radionuclides used in medical imaging?
What is the half-life range of radionuclides used in medical imaging?
Which radionuclide is used in pulmonary ventilation studies?
Which radionuclide is used in pulmonary ventilation studies?
What is the primary advantage of using a generator in radiopharmaceuticals?
What is the primary advantage of using a generator in radiopharmaceuticals?
What is the energy of the gamma emission of Technetium-99m (99mTc)?
What is the energy of the gamma emission of Technetium-99m (99mTc)?
Why is Technetium-99m (99mTc) used in 90% of radionuclide imaging?
Why is Technetium-99m (99mTc) used in 90% of radionuclide imaging?
What is the purpose of the exchange column of alumina beads in the Technetium generator?
What is the purpose of the exchange column of alumina beads in the Technetium generator?
What is the half-life of the parent 99Mo in the Technetium generator?
What is the half-life of the parent 99Mo in the Technetium generator?
What is the effective half-life (teff) dependent on?
What is the effective half-life (teff) dependent on?
Why is a radionuclide with a physical half-life of a few hours desirable for imaging?
Why is a radionuclide with a physical half-life of a few hours desirable for imaging?
What happens to the radioactivity in specific tissue, organ, or whole body when a radiopharmaceutical is administered to a patient?
What happens to the radioactivity in specific tissue, organ, or whole body when a radiopharmaceutical is administered to a patient?
What is the formula for the effective half-life (teff)?
What is the formula for the effective half-life (teff)?
What is the biological half-life (tbiol)?
What is the biological half-life (tbiol)?
What is the physical half-life (tphys)?
What is the physical half-life (tphys)?
What is the effective half-life (teff) compared to the biological and physical half-lives?
What is the effective half-life (teff) compared to the biological and physical half-lives?
What determines the effective half-life (teff) in a patient?
What determines the effective half-life (teff) in a patient?
Why is a physical half-life of a few hours desirable for imaging?
Why is a physical half-life of a few hours desirable for imaging?
What happens to the radiopharmaceutical when it is administered to a patient?
What happens to the radiopharmaceutical when it is administered to a patient?
Flashcards are hidden until you start studying
