Coordination Chemistry in Biomedical Imaging Quiz

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Questions and Answers

Which medical imaging technique relies upon the emission and detection of highly penetrating gamma (γ) rays?

  • Positron Emission Tomography (PET)
  • Single Photon Emission Computer Tomography (SPECT) (correct)
  • X-ray imaging
  • Magnetic Resonance Imaging (MRI)

Which type of radiation is used in PET/SPECT imaging?

  • Neutron radiation (n emission)
  • Beta radiation (e- emission)
  • Alpha radiation (He nuclei)
  • Gamma radiation (γ emission) (correct)

What is a key characteristic of PET/SPECT imaging compared to MRI?

  • Use of alpha radiation
  • High spatial resolution (correct)
  • Use of non-radioactive materials
  • Low sensitivity

Which type of radiation has low penetration and is stopped by paper and clothing?

<p>Alpha radiation (He nuclei) (A)</p> Signup and view all the answers

What is the main advantage of using gamma rays for medical imaging?

<p>Readily detected in the body tissues (A)</p> Signup and view all the answers

Which method has the best sensitivity among MRI, SPECT, and PET?

<p>PET (C)</p> Signup and view all the answers

What is the primary method for stopping beta radiation?

<p>Thin metal foil (D)</p> Signup and view all the answers

Which type of radiation is useful for imaging purposes due to its moderate penetration and body tissue transparency?

<p>Gamma radiation (C)</p> Signup and view all the answers

What is the typical PET imaging dose for a human using 18F-FDG?

<p>350 MBq (A)</p> Signup and view all the answers

What limits the resolution of SPECT and PET imaging techniques?

<p>The mean free path of beta radiation (D)</p> Signup and view all the answers

Which radionuclide has the highest maximum beta plus energy?

<p>$^{62}Cu$ (D)</p> Signup and view all the answers

For what purpose is FDG (18F-Fluorodeoxy glucose) primarily used?

<p>Visualizing metabolic functions (D)</p> Signup and view all the answers

What is the primary reason that PET and SPECT use radioactive materials that emit γ radiation?

<p>To enhance the penetration of the radiation through body tissues (B)</p> Signup and view all the answers

Why are PET and SPECT referred to as TRACER methods?

<p>Because they utilize pharmacologically insignificant amounts of materials (A)</p> Signup and view all the answers

Which medical imaging technique has the poorest spatial resolution among MRI, SPECT, and PET?

<p>SPECT (A)</p> Signup and view all the answers

What is the main advantage of using gamma rays for medical imaging?

<p>They can penetrate body tissues while being readily detected (D)</p> Signup and view all the answers

What is the typical sensitivity order from highest to lowest among MRI, SPECT, and PET imaging techniques?

<p>SPECT, PET, MRI (A)</p> Signup and view all the answers

What is the primary purpose of using radioactive materials in PET and SPECT imaging?

<p>To ensure that the emitted radiation can penetrate body tissues (A)</p> Signup and view all the answers

What is the typical imaging dose of 18F-FDG for a mouse?

<p>10 MBq (B)</p> Signup and view all the answers

What does SPECT stand for in the context of medical imaging?

<p>Single Photon Emission Computerized Tomography (C)</p> Signup and view all the answers

Which radionuclide has the highest maximum beta plus energy?

<p>$^{66}Ga$ (D)</p> Signup and view all the answers

What limits the resolution of PET imaging techniques?

<p>Maximum beta plus energy (A)</p> Signup and view all the answers

What is the primary function of 18F-Fluorodeoxy glucose (FDG) in functional imaging?

<p>To visualize metabolic functions (B)</p> Signup and view all the answers

What is the mode of action of 18F-FDG in mimicking glucose?

<p>It accumulates by a metabolic process (C)</p> Signup and view all the answers

What does PET stand for in the context of medical imaging?

<p>$eta^+$ Particle Emission Tomography (B)</p> Signup and view all the answers

Which type of radiation is used in SPECT and PET imaging?

<p>$eta^+$ radiation (B)</p> Signup and view all the answers

What is the primary method for stopping gamma radiation?

<p>$1 ext{ cm - } 1 ext{ m }$ of concrete or lead (D)</p> Signup and view all the answers

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