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2017/18 Undergraduate Module Catalogue

MEDP3511 Digital Radiography and X-ray Computed Tomography

10 creditsClass Size: 35

Module manager: Mr A Davies

Taught: Semester 1 (Sep to Jan) View Timetable

Year running 2017/18

Pre-requisite qualifications

Applicants must have successfully completed at least two years undergraduate MBChB or BChD training or international equivalent; for international medical students proof of English Language proficiency will be required; a minimum or IELTS 7.0 with no component under 6.5 or equivalent.


This module is available as a discovery module and would be suitable for students who are studying a physical science degree (or related subject).

This module is mutually exclusive with

MEDP5311MDigital Radiography and X-ray Computed Tomography

This module is approved as a discovery module

Module summary

This module will provide a sound understanding of the physic principles of medical digital radiography & X-ray computed tomography and an appreciation of their roles in patient diagnosis and treatment.


To provide a sound understanding of the physics of Digital Radiography & X-ray computed tomography and provide an appreciation of their clinical roles.

Learning outcomes
On completion of this module a student should be able to:

1. Understand the physical principles under-pinning modern digital radiography
2. Understand the physical principles under-pinning modern X-ray computed tomography
3. Recognise the most important technologies currently utilised in DR & X-ray CT imaging
4. Describe the chain of physical and technical processes contributing to the successful formation, acquisition, processing and display of DR
and X-ray CT images
5. Be able to interpret the relevant physical characteristics of DR & X-ray CT images
6. Recognise the fundamental trade-off between X-ray image quality and radiation dose to the patient in DR & X-ray CT imaging
7. Appreciate the complimentary roles DR & X-ray CT play in medical diagnosis

Skills outcomes
Appreciate the relationship between patient radiation dose and image quality in modern radiological imaging and its clinical implications.


Basic Principles of X-ray Imaging

- What are X-rays?
- Methods of X-ray production: X-ray tubes, generators and Linacs.
- Interactions of X-rays with matter
- Processes of X-ray image formation
- Image quality & patient radiation dose.

Digital Radiography

- Introduction to digital X-ray imaging
- Photo-stimulable phosphor computed radiography physics
- Solid-state digital detector physics
- Digital mammography
- Computerized image enhancement in DR
- Associated digital facilities plus clinical implications PACS & DICIOM
- Physics of DR image quality evaluation
- X-ray mammography

Radiation Dose

- Radiation dose in medical X-ray imaging and its measurement
- Health and safety issues and legislation relating to medical X-ray imaging

Dynamic X-ray imaging

- Use of X-ray contrast agents in fluoroscopy
- Digital fluoroscopy imaging systems
- Digital cardiac imaging
- Digital subtraction angiopgraphy & DSA imaging equipment
- X-ray image guided Interventional radiology

X-ray Computed Tomography

- Principles of X-ray computed tomography
- CT scanning geometry
- Physics of X-ray image formation and data capture for CT
- Principles of computerised reconstruction of X-ray CT slice images
- Multi-slice CT detector technologies & clinical role
- Introduction to 3D (volume) CT imaging
- Radiation dose in X-ray CT & its measurement
- Future trends in X-ray CT imaging technology & clinical applications

Teaching methods

Delivery typeNumberLength hoursStudent hours
Independent online learning hours20.00
Private study hours59.00
Total Contact hours21.00
Total hours (100hr per 10 credits)100.00

Private study

Independent learning to support the summative assignment plus on-going formative tasks to support the lecture.

Substantive private study to prepare the student for the final examination.

Opportunities for Formative Feedback

Student progress will be monitored through question and answer sessions which will take place within lectures. Students are provided with self assessment questions throughout the course.

Methods of assessment

Exam typeExam duration% of formal assessment
Standard exam (closed essays, MCQs etc)1 hr 30 mins100.00
Total percentage (Assessment Exams)100.00

A resit for this assessment will be taken during the August resit period.

Reading list

The reading list is available from the Library website

Last updated: 01/09/2014


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