DNB 2014 June Previous Question Papers-(Diplomate of National Board) Under NBE
PAPER - IV
RTH/J/14/41/IV
Time : 3 hours
Max. Marks : 100
FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
JUNE 2014
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RADIOTHERAPYPAPER - IV
RTH/J/14/41/IV
Time : 3 hours
Max. Marks : 100
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Important instructions:
- Attempt all questions in order.
- Each question carries 10 marks.
- Read the question carefully and answer to the point neatly and legibly.
- Do not leave any blank pages between two answers.
- Indicate the question number correctly for the answer in the margin space.
- Answer all the parts of a single question together.
- Start the answer to a question on a fresh page or leave adequate space between two answers.
- Draw table/diagrams/flowcharts wherever appropriate.
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- Describe cell survival curve. Discuss in detail the genetic changes after irradiation. 5+5
- Describe the Bragg's Peak. How proton interaction differs from photons in tissue? Mention tumours where protons have been used and their results. 3+4+3
- How heavy ions are produced for clinical use? Mention various components of HADRON therapy machine. 4+6
- Discuss the indications, techniques and results of stereotactic body radiation therapy in carcinoma lung. 3+4+3
- Discuss various radio-isotopes and their characteristics, used for brachytherapy. 10
- What is radiosensitivity? Discuss four commonly used radiosensitizing agents in clinical practice. 2+8
- What is the principle of Intensity Modulated Radiation Therapy (IMRT)? Elaborate IMRT process mentioning dose prescription, dose constraints and DVH for carcinoma nasopharynx. 5+7
- What do you understand by “P” value and significance level in a clinical trial? Discuss the methods for calculating sample size for a randomized controlled trial comparing two treatment modalities. 3+7
- Discuss the utility of Hyperbaric Oxygen, Lasers and TACE in Oncology. 4+3+3
- Describe the principles and equipment used for PET-CT. Discuss the role of PET-CT scan in radiation treatment planning. (2+3)+5
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