Which statement best describes In Vivo dosimetry?

Which statement best describes In Vivo dosimetry?

• A. Direct measurement of external radiation.
• B. Direct measurement of radiation emitted from the body from internally deposited radionuclides.
• C. Measurement of RAM excreted.
• D. Calculation of shielding thickness.

Answer: (B)

In vivo dosimetry is about measuring the radiation dose inside a living body by detecting the radiation that is emitted from within, from internally deposited radionuclides or radiopharmaceuticals. Detectors placed on or near the patient pick up the emitted photons or particles to estimate the actual dose delivered to tissues, giving a patient-specific dose readout. This differs from external dosimetry, which measures radiation coming from outside the body, and from monitoring what is excreted or performing shielding calculations, which serve different purposes.

In vivo dosimetry is about measuring the radiation dose inside a living body by detecting the radiation that is emitted from within, from internally deposited radionuclides or radiopharmaceuticals. Detectors placed on or near the patient pick up the emitted photons or particles to estimate the actual dose delivered to tissues, giving a patient-specific dose readout. This differs from external dosimetry, which measures radiation coming from outside the body, and from monitoring what is excreted or performing shielding calculations, which serve different purposes.