Download DNB 2015 Dec RADIODIAGNOSIS IV A Question Paper

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FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2015

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Time : 3 hours
Max. Marks : 100

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IMPORTANT INSTRUCTIONS

• This question paper consists of 10 questions divided into Part ‘A’ and Part ‘B’, each part containing 5 questions.
• Answers to questions of Part ‘A’ and Part ‘B’ are to be strictly attempted in separate answer sheet(s) and the main + supplementary answer sheet(s) used for each part must be tagged separately.
• Answers to questions of Part ‘A’ attempted in answer sheet(s) of Part ‘B’ or vice versa shall not be evaluated.
• Answer sheet(s) of Part ‘A’ and Part ‘B’ are not to be tagged together.

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• Part ‘A’ and Part ‘B’ should be mentioned only on the covering page of the respective answer sheet(s).
• 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.

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• 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.

PART A

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Write short notes on:

1. a) What is scatter radiation? How does it affect radiographic image quality? (1+2)+7
   b) Methods to reduce scatter radiation.
2. a) Enumerate the types of digital radiography. Describe each one briefly. 4+6
   b) Advantages and limitations of digital radiography compared with conventional film screen radiography.

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3. a) Principles and techniques of dual energy CT. (3+3)+4
   b) Clinical applications of dual energy CT.
4. Principles and techniques of ultrasound elastography along with its clinical applications. 2+4+4
5. a) Define contrast induced nephropathy (CIN). 1+(5+4)
   b) Conditions predisposing to CIN and the precautions to be taken to avoid CIN.

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