[LO 0219] FEBRUARY 2019 Sub. Code: 1933
B.Sc. RADIOTHERAPY TECHNOLOGY
(New Syllabus 2014-2015)
SECOND YEAR
PAPER III RADIOTHERAPY TECHNIQUES
Q.P. Code: 801933
Time: Three Hours Maximum: 100 Marks
Answer all questions
I. Elaborate on: x 10 30)
1. Simulation and its application in radiotherapy.
2. Describe indication, technique dose and complications of radiotherapy in
carcinoma anorectum.
3. Electron beam therapy.
II. Write notes on: x 5 40)
1. ICRU 50.
2. ISODOSE curve.
3. Dose volume histogram.
4. Intracavitary brachytherapy.
5. Tomotherapy.
6. Write a note on bolus and its clinical uses.
7. Percentage depth dose.
8. Dog leg technique.
III. Short answers on: (10 x 3 30)
1. Half value layer.
2. Various dose fractionation used in palliative radiotherapy to bone metastases.
3. Mention field borders for treating case of Carcinoma Nasopharynx.
4. Adaptive radiotherapy.
5. Define point point bladder point in brachytherapy of carcinoma cervix.
6. What is the best radiation technique to chordoma of base of skull? Why?
7. Tissue air ratio.
8. Advantages of preoperative radiotherapy.
9. Difference between 3DCRT and IMRT.
10. Therapeutic ratio.