Medical Radiation Physics as applied Radio Diagnosis PG DMRD Question Bank : web.tnmgrmu.ac.in

Name of the University : The Tamilnadu Dr. M.G.R. Medical University
Degree : PG Diploma in Medical Radio Diagnosis (D.M.R.D.)
Subject Code/Name : 3019 Medical Radiation Physics as applied Radio Diagnosis
Paper : I
Document Type : Question Bank
Website : web.tnmgrmu.ac.in

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Medical Radiation Physics as applied Radio Diagnosis :
March -2009 :
I. Essay questions : (2 X 20 = 40)
1. Discuss the physical principles of multislice CT and its major applications.
2. Describe the properties of X-rays, its harmful effects and its prevention.

II. Write short notes on : (10 X 6 = 60)
1. Intracavitory ultrasound.
2. Automatic processing unit.
3. Principles and working of MR angiography.
4. Ultra sound transducers and their applications.
5. TLD Badge.
6. Colour Doppler Imaging.
7. PET.
8. MR spectroscopy.
9. Artefacts in conventional radiography.
10. Digital substraction angiography.

September – 2009 :
I. Essay questions : (2 X 20 = 40)
1. What are the hazards of radiation- What are the methods of radiation protection in diagnostic radiology-
2. Discuss the physical principles of Doppler imaging.

II. Write short notes on : (10 X 6 = 60)
1. MR contrast media.
2. Computerized radiography.
3. Transformers.
4. Automatic processing unit.
5. Image intensifier.
6. 3D ultra sound.
7. Contrast media osmolarity.
8. Ultrasound transducer.
9. Cassettes.
10. CT fluoroscopy.

I. Essay questions : (2 X 20 = 40)
1. Discuss the physical principles and advances in Computed Tomography.
2. Enumerate constituents of developer and fixer. Explain how radiographic image is formed on a film.

II. Write short notes on : (10 X 6 = 60)
1. Digital Radiography.
2. Biological effects of radiation.
3. Factors affecting quality of image.
4. Principles of image intensifier.
5. Basic principles of MRI.
6. Filters.
7. Non ionic intravenous contrast media.
8. Fluoroscopy.
9. Ultrasonography probe.
10.Artefacts.

April 2011 :
I. Elaborate on :
1. Describe the Gamma Camera in detail.
2. Explain the principles of magnetic resonance imaging. Explain T1 and T2 relaxations and describe the pulse sequences commonly used in imaging.

II. Write notes on :
1.Ultrasound transducers.
2. High KV technique.
3. Physics of Doppler ultrasound.
4. X-ray film processing.
5. Superconducting magnet in MRI.
6. Virtual colonoscopy.
7. PET.
8. MR coils.
9. PACS.
10. Beam hardening effect