1. Lecture 8 Technological Principles of Medical Instrumentation
6 October University
Faculty of Applied Medical Sciences
Department of Biomedical equipment and systems
Technological Principles
of Medical Instrumentation By
Dr. Eng. Hani Kasban Mahmoud
2017
Lecture 8

2. Medical Imaging Techniques
Lecture 8
CHAPTER 4
Medical Imaging Techniques
CHAPTER 4 Medical Imaging Techniques
Introduction
4.1
X-Ray Radiography
4.2
X-Ray Computed Tomography
4.3
Magnetic Resonance Imaging (MRI)
4.4
Ultrasonography
4.5
Elastography
4.6
Optical Imaging
4.7
Radionuclide Imaging
4.8
Infrared Thermography
4.9
Terahertz Imaging
4.10
Comparisons between Medical Imaging Techniques
4.11
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

3. Medical Imaging Techniques
CHAPTER 4
Medical Imaging Techniques
Figure (4-1): Concept of a medical imaging system
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

4. CHAPTER 4 Medical Imaging Techniques
X-Ray Radiography
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

5. CHAPTER 4 Medical Imaging Techniques
X-Ray Radiography
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

6. CHAPTER 4 Medical Imaging Techniques
Shoulder
Head
Pelvis
Knee
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

7. CHAPTER 4 Medical Imaging Techniques
X-Ray Radiography Benefits
Noninvasive, quick, and painless.
Support medical and surgical treatment planning.
Guide medical personnel as they insert catheters or stents inside the body to treat tumors, or remove blood clots.
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

8. CHAPTER 4 Medical Imaging Techniques
X-Ray Radiography Risks
Exposure to ionizing radiation, this increase the possibility of developing cancer later in life.
Tissue effects such as cataracts, skin reddening, and hair loss, which occur at relatively high levels of radiation exposure.
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

9. CHAPTER 4 Medical Imaging Techniques
X-Ray Radiography Medical Applications
X-ray radiography is used in many types of examinations such as; chiropractic, dental.
Fluoroscopy radiographs used for showing the movement of organs, such as the stomach, intestine, and colon, in the body, also can be used for studding the blood vessels of the heart and the brain.
Mammography used for diagnosing and screening of the breast tissue.
Bone Densitometry used for measures bone mineral content and density.
Arthrography used for seeing inside the joint.
Hysterosalpingogram used for examining of the uterus and Fallopian tubes.
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

10. CHAPTER 4 Medical Imaging Techniques
X-Ray Computed Tomography
(a) CT scanner
(b) CT fan beam
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

11. CHAPTER 4 Medical Imaging Techniques
2D CT D CT D CT
Example of CT scan
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

12. CHAPTER 4 Medical Imaging Techniques
CT Benefits
Non invasive, quick, and painless.
Good spatial resolution.
Global view of veins.
Distinguished by small differences in physical density.
Avoids invasive insertion of an arterial catheter and guide wire.
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

13. CHAPTER 4 Medical Imaging Techniques
CT Risks
Exposure to ionizing radiation, this increase the possibility of developing cancer later in life.
No real time information.
Cannot detect intra-luminal abnormalities.
Cannot be performed without contrast (allergy, toxicity).
Less contrast resolution where soft tissue contrast is low.
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

14. CHAPTER 4 Medical Imaging Techniques
CT Medical Applications
Examining many parts of human body such as; brain, sinus, facial bones, dental, spines, cervical, hands, wrist, elbow, shoulder, hip, knee, ankle foot, renal tract.
Diagnosing disease, trauma and abnormality.
Planning and guiding the interventional or therapeutic procedures.
Monitoring the effectiveness of therapy (cancer treatment).
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

15. CHAPTER 4
Author : Dr. Eng. Hani Kasban A. Mahmoud / 2017

16. Many thanks
Dr. Eng. Hani Kasban
Questions?????