A patient is to be treated in the room shown in the figure. (a) Identify the typ

Question

A patient is to be treated in the room shown in the figure. (a) Identify the type of treatment the patient is to receive. brachytherapy external-beam radiotherapy chemotherapy Identify the main components of the equipment seen in the room. (Select all that apply.) Co-60 unit linac afterloader patient treatment table X-ray tube X-ray detector (b) Assume the tumour to be treated has a ?-coefficient that is very small such that it can be safely ignored (this actually turns out to be a reasonable assumption in certain types of tumours), and that the prescribed dose to cure it is 24 Gy. Tumour "cure" is defined in this case as the killing of 99.99% of the malignant cells. Compute ? for this tumour (in Gy?1). Gy?1 (c) Prostate cancer cells have a ? ? 0 and an ? = 0.348 Gy?1. Is it possible that the patient in this case is being treated for prostate cancer? (Consider this to be possible if ? is within 4% of your computed ? above.) Yes No

Explanation / Answer

(a) answer:- brachytherapy

(b) answer:-

-patient treatment table

-X-ray tube

-afterloader

- X-ray detector

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