FEBRUARY 2018 Sub. Code: 1412
DIPLOMA IN RADIOLOGY IMAGING TECHNOLOGY
SECOND YEAR
PAPER II EQUIPMENTS, BASIC TECHNIQUES OF MODERN
IMAGING MODALITIES
Q.P. Code: 841412
Time Three Hours Maximum 100 Marks
Answer All questions.
I. Elaborate on: x 10 30)
1. Explain with diagram, the construction of mammographic equipment.
2. Explain the various generations of CT scanner.
3. Explain various types of magnets used in MRI.
II. Write Notes on: (10 x 5 50)
1. Explain the construction and working of CR reader.
2. Indirect digital radiography.
3. Construction of ultrasound probe.
4. Detectors used in CT.
5. T1 and T2 relaxation time.
6. Proton density imaging.
7. Artifacts in ultrasound imaging.
8. Advantages of MR imaging over CT imaging.
9. Contraindications of MRI.
10. CT angiography.
III. Short Answers on: (10 x 2 20)
1. Advantages of computed radiography.
2. CCD technology.
3. Mammographic film.
4. CT Number.
5. Pitch.
6. Larmour frequency.
7. Why hydrogen is widely used in MR imaging?
8. Doppler effect in ultrasound.
9. Piezoelectric effect.
10. Advantages of Digital Image Storage.