Download GTU B.Tech 2020 Winter 7th Sem 2170303 Medical Imaging Techniques Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2170303 Medical Imaging Techniques Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2170303 Date:19/01/2021
Subject Name:Medical Imaging techniques
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1 (a) Explain aperture diaphragm type beam restrictor. Calculate
03
penumbra width when focal spot is 2cm wide, distance between
source and object is 10cm, and distance between object and
detector is 2m.

(b) Describe Line Focus Principle and Heel Effect and brief.
04

(c) Wit Neat diagram, discuss `Xeroradiography'.
07


Q.2 (a) Explain Coherent and Compton scattering.
03

(b) Compare 3rd and 4th generation of CT scan machine.
04

(c) What is CT number? Explain its importance in CT image
07
reconstruction.




Q.3 (a) Explain longitudinal acoustic propagation.
03

(b) What is matching in ultrasonic transducers? Explain mechanical
04
matching.

(c) Explain A-mode imaging.
07




Q.4 (a) Explain reflection and refraction in ultrasound transmission.
03

(b) Discuss Beam profile of single element ultrasonic transducers.
04

(c) Explain B-mode imaging.
07
Q.5 (a) Enlist different Array structures in ultrasonic transducers. What
03
are the advantages of array structure?

(b) Draw the block diagram of magnetic resonance system and enlist
04
its components.

(c) Explain slice selection method in magnetic resonance system.
07



Q.6 (a) Explain cavitation as biological effect of ultrasound.
03

(b) What is primary magnetic field? Explain its effect on hydrogen
04
atoms in human body in detail.

(c) Discuss in detail image reconstruction methods used in NMR
07
imaging.
Q.7 (a) Explain fundamentals of medical thermography.
03

(b) Discuss interaction of nuclear particles and matter.
04

(c) Discuss SPECT in detail.
07





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Q.8 (a) Enlist nuclear radiation detectors. Draw schematic diagram of
03
scintillation detector.
(b) Discuss thermographic equipment in detail.
04
(c) Explain PET scanner in detail.
07

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