Medical Image Acquisition ENSC 477/895 Dr.. Marinko Sarunic and Dr Dr Dr.. Teresa Cheung Fall 2015
What is Medical Imaging •
Wikipedia: Medical imaging refers to the techniques and processes used to create images of the human body (or parts thereof) for –
clinical purposes (medical procedures seeking to reveal, the diagnose or examine disease) or medical science (including study of normal anatomy and function). •
Engineering and Medical Imaging Understanding the physical process Generating the “probe” Detecting the signal Signal processing Image display –
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Design Considerations Safety to patient !! Information extracted from data –
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First published Medical Image: The hand of Roentgen’s wife acquired in Dec 1895.
X-ray
Ultrasound
3D images http://youtu.be/9UCaxkvWe‐8
MRI
BME 477: Biomedical Image Acquisition •
Course Synopsis –
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Pre‐Requisites –
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Medical Imaging Signals and Systems, 2nd Edition Prince, J.L., and Links, J.M. Pearson Prentice Hall, New Jersey, 2015
Additional Material –
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Dr. Dr. Marinko V. Sarunic ASB 8809
[email protected] Dr. Dr. Teresa Cheung ASB 9872
[email protected]
Required Textbook –
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ENSC 380
Instructors –
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This course provides an understanding of the scientific principles, physics and engineering technology that provide the basis for the various techniques (radiography, sonography, computed tomography, magnetic resonance imaging), by which medical images are acquired.
The Essential Physics of Medical Imaging Bushberg J.T J.T.. et al, Lippincott Williams and Wilkins, Philadelphia, 2002
Grading Scheme – – – –
HW Laboratory Midterm Final
20% 20% 20% 40%
Important Dates / Places •
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Mon: 2:30‐4:20 SECB1012 Wed: 2:30 ‐ 3:20 SECB1010 Tutorial: Wed 3:30 – – 4:20 SECB1010 Lab Friday 10:30 – – 12:20 ASB 10878 When announced. –
Exams Midterm Wed Oct 12, 2015 (2 hours, during class and tutorial) •
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Final Exam Fri Dec 9, 2015 at 12:00 pm (noon) – – 3:00 pm •
Syllabus Week Date
Topic / Chapter Part I: Basic Imaging Principles Chapter 2: Signals and Systems. Chapter 3: Image Quality Part II: Radiographic Imaging Chapter 4: Physics of Radiography. Chapter 5: Projection Radiography. Chapter 6: Computed Tomography. Part V: MEG
1
9/9/2015
2 3 4
9/14/2015 9/21/2015 9/28/2015
5 6
10/5/2015 10/12/2015
7
10/19/2015
8 9
10/26/2015 11/2/2015
10 11
11/9/2015 11/16/2015
12
11/23/2015
1/2 Chapter 13: Magnetic Resonance Imaging. 1/2 NMI
13 14
11/30/2015 12/7/2015 12/9/2015
Chapter 7 and 8: Nuclear Medicine and Planar Scintigraphy. Chapter 9: Emission Computed Tomography. Final Exam at 12 Noon
On‐line notes. MidTerm Part V: MEG Cont'd On‐line notes. Part IV: Ultrasound Imaging Chapter 10: The Physics of Ultrasound. Chapter 11: Ultrasound Imaging Systems. Part VI: Magnetic Resonance Imaging. Chapter 12: Physics of Magnetic Resonance. Chapter 13: Magnetic Resonance Imaging. Part III: Nuclear Medicine Imaging (Cont'd)
Imaging Modalities Imaging Method
Resolution
Penetration Depth
Source of contrast
2 – 3 mm
Entire body
Attenuation
(X-rays) Magnetic Resonance Imaging
2 – 3 mm
Entire body
[ H+ ]
Ultrasound
500 m
10 – 20 20 cm
Acoustic scattering
Visual Examination
100 m
Surface
Computed Tomography
Optical Imaging Histology
Natural Colouring Optical
1 – 10 m
2 – 3 mm mm
scattering absorption&
1 m
5 – 10 m sections
Histological stains