1. Choose and write the correct answer: a) Half-life of I-192 is - (i) 5.26 years (ii) 30 years (iii) 2.7 days b) The total dose prescribed in stereotactic irradiation are at the o... 1. Choose and write the correct answer: a) Half-life of I-192 is - (i) 5.26 years (ii) 30 years (iii) 2.7 days b) The total dose prescribed in stereotactic irradiation are at the order of - (i) 100 - 150 Gy (ii) 10 - 50 Gy (iii) 20-30 Gy (iv) none of these c) Half-life of Pd-103 is - (i) 59 days (ii) 17 days (iii) 2.7 days d) Average gamma energy of Ra-226 is - (i) 1.25 MeV (ii) 0.662 MeV (iii) 0.83 MeV (iv) 0.412 MeV e) The 3D geometrical shape of the tumour is considered in the case of - (i) 2D CRT (ii) 3D CRT (iii) none of these f) The IMRT treatment is not possible for the radiation of - (i) electron beam (ii) proton beam (iii) photon beam g) Gamma energy of Cs-137 is - (i) 1.25 MeV (ii) 0.38 MeV (iii) 0.412 MeV (iv) 0.662 MeV h) The radiation treatment technique in which the intensity of incident radiation changes is known as - (i) IGRT years (ii) IMRT years (iii) 3D CRT days (iv) none of these i) Half-life of iodine-125 is - (i) 5.26 years (ii) 30 years j) The radiation treatment procedure in which total dose delivered in simple session is known as - (i) SRS (ii) SRT (iii) CRT (iv) none of these k) Half-life of Au-198 is - (i) 2.7 days (ii) 5.26 years (iii) 0.412 MeV (iv) 0.662 MeV l) Average gamma energy of Au-198 is - (i) 1.25 MeV (ii) 0.38 MeV (iii) 0.412 MeV (iv) 0.662 MeV.
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The question presents a multiple-choice quiz related to nuclear medicine, specifically focusing on half-lives, radiation therapy techniques, and gamma energy values. It addresses specific facts that require knowledge in radiology and radioisotopes.
Answer
a) 74 days, b) 10-50 Gy, c) 17 days, d) 0.83 MeV, e) 3D CRT, f) Proton beam, g) 0.662 MeV, h) IMRT, i) 59 days, j) SRS, k) 2.7 days, l) 0.412 MeV.
a) Half-life of I-192 is 74 days. b) The total dose prescribed in stereotactic irradiation is 10 - 50 Gy. c) Half-life of Pd-103 is 17 days. d) Average gamma energy of Ra-226 is 0.83 MeV. e) 3D geometrical shape of the tumour is considered in 3D CRT. f) IMRT treatment is not possible for proton beam. g) Gamma energy of Cs-137 is 0.662 MeV. h) Radiation treatment technique with variable intensity is IMRT. i) Half-life of iodine-125 is 59 days. j) Single session radiation treatment is known as SRS. k) Half-life of Au-198 is 2.7 days. l) Average gamma energy of Au-198 is 0.412 MeV.
Answer for screen readers
a) Half-life of I-192 is 74 days. b) The total dose prescribed in stereotactic irradiation is 10 - 50 Gy. c) Half-life of Pd-103 is 17 days. d) Average gamma energy of Ra-226 is 0.83 MeV. e) 3D geometrical shape of the tumour is considered in 3D CRT. f) IMRT treatment is not possible for proton beam. g) Gamma energy of Cs-137 is 0.662 MeV. h) Radiation treatment technique with variable intensity is IMRT. i) Half-life of iodine-125 is 59 days. j) Single session radiation treatment is known as SRS. k) Half-life of Au-198 is 2.7 days. l) Average gamma energy of Au-198 is 0.412 MeV.
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