Conventional Imaging Systems in Biology & Medicine

Lecturer:

Tutor:

Supervisor:

Department of Biomedical Technology

Synopsis:

Imaging process, sensing methods, image signals properties, image formation principles and general evaluation of image quality. Fundamental physical and technical aspects of general analog and digital imaging systems, optical, including endoscopes, thermovisions, X-ray systems and a digital radiography, conventional imaging systems in nuclear medicine and ultrasound imaging systems.

Requirements:

Syllabus of lectures:

1. Electromagnetic radiation - relationship to the medical imaging systems.

2. Fundamentals of image theory. Application of the 2D FT. Transfer characteristics of the imaging systems.

3. Optical imaging systems.

4. TV imaging systems.

5. Fundamentals methods of image preprocesing.

6. Infrared imaging systems.

7. X-ray imaging systems.

8. RTG-TV system. X-ray image intensifier. Angiography (DSA). Digital radiography - FPD.

9. Imaging systems in nuclear medicine.

10. Ultrasound medical imaging systems. Basics quantities of the sound field. US transducers and probes. Attenuation, reflection, fracture, diffusion (scatter), uptake.

11. Ultrasound systems classifications based on the scanning - mechanical and electronic. Spatial resolution. Focusation.

12. Imaging modes (A, B, C, M či TM). Display modes and image formation. Structure of the US imaging systems. Non-linear controlling of the receiver gain - TGC.

13. Doppler principles. Application of Doppler effect - red blood cells. Block scheme of the Doppler signal demodulation.

14. Demodulation based on FFT and relationship to the spectrum of the blood velocity. Differences between PW and CW systems.

Syllabus of tutorials:

1.-2. Matlab - Image Processing Toolbox, basic tool, introduction

3.-4. Fundamentals of digital image processing

5.-6. Mathematical background for digital image processing. Application of the 2D FT. Evaluation of the modulation transfer function - MTF

7.-8. Demo - TV system. TV norm. Resolution. Digitization of TV signal (effect of A/D converter).

9.-10. Computations from the field of the IR medical imaging systems. Application of the physical law. Thermovision camera, HW (Lab. 10)

11.-12. Computations from the field of the X-ray and X-ray tube loading. Educational videoprogram

13.-14. Educational videoprogrames and multimedia programes. Laboratory experiments with ultrasound medical imaging system

Study Objective:

To give the students information about physical-technical principles of conventional image formation in imaging systems . The idea is to understand limiting principles and parameters of these imaging systems. Based on this understanding, the student will be able to decide whether or not medical doctors requirements are satisfied.

Study materials:

[1] Zang-Hee, Cho., Jones, Joi. P., Singh Manbir: Foundations of Medical Imaging. Wiley, 1993.

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans: