Outline of Radiological Technology Diagnostic Radiography Therapeutic Radiography
- Slides: 42
Outline of Radiological Technology Diagnostic Radiography Therapeutic Radiography V. G. Wimalaena Principal School of Radiography
Radiological Technology • Radiological technology is a branch of Healthcare • It is the science (& art) that deals with diagnosis of diseases (by imaging) and treatment of some diseases using ionizing radiation
Diagnostic Imaging modalities (branches) 1. Using ionizing radiation • Radiography – Producing images using X-rays • Plain radiography – • Static images (chest, skull, abdomen. . ) • Contrast Radiography • Static images (e. g. IVU…. ) • Dynamic images (Fluoroscopy) – (e. g. Barium studies, Coronary Angiography)
Diagnostic Imaging …. • • Mammography Tomography (conventional) Computerized Tomography (CT) Computed Radiography (CR) Digital Radiography (DR) Digital Fluoroscopy Digital Subraction Angiography Nuclear Imaging (Radio-Isotope imaging) • Bone scan, renal studies, thyroid scans. . SPECT, PET
Diagnostic Imaging …. 2. Other modalities (that does not involve ionizing radiation) • Magnetic Resonance Imaging (MRI) • Ultra Sound scanning (US)
Therapeutic Radiography • Treatment of Cancers using Ionizing radiation • Brachytherapy • Teletherapy
Brachytherapy • The radiation source is kept as close as possible to the site of the tumour (usualy within the body) • To minimize the effect on the normal structures • To maximize the effectiveness of the treatment • Using beta rays, gamma rays • Positron therapy
Teletherapy • The radiation source is out side the body and at a distance from the tumour • Cobolt 60 sources • High energy x-rays • Linear accelerators
Who are we? • Radiological technologists/Radiographers • Are members of a team of healthcare professionals who work in consort to maximize patient wellness • Are Governed by a code of ethics and principles of professional conduct
Our Duties
General radiography
Plain radiography
IVU
Barium studies
Mammography
CT Scanning
CT images
Digital subtraction angiography (DSA)
Coronary Angiography
Nuclear Medicine
(Nuclear imaging) Bone scans
Nuclear medicine SPECT scanning
MRI Scanning
MRI images
Lithotripsy
Radiotherapy - Teletherapy
Masking
Planning & Simulation
Brachytherapy
Linear Accelerator
Advancement in the field • PET-CT – hybrid images of PET & CT to locate the tumours for treatment • SPECT-CT
Specific Risks involved • Mechanical injury • Electrical injury • Radiation injury
Radiation hazards • Somatic effects • • Cancer Cataract Leucaemia ……… • • Fetal Deformities Infertility Abortion Still births • Genetic effects
Radiation protection • • Patient Public – dose limits Staff Self – • Occupatienal dose limit (IAEA) • Monitoring • Devices • Procedure
Competencies Required • Patient care • Anatomy & Physiology (Structure and function of the body) • Pathology (Identifying diseases) • Equipment (Physics, operation & maintenance • Imaging techniques • Radio-Therapy techniques • Radiation protection • Quality control
Patient care • Both fields (diagnostic & Therapy) deal with different catogories of patients • Should demonstrate knowledge & skills in • Patient psychology • Effective communication • Patient care techniques
Training • • Two years (Full time) School Started in 1957 Still the same duration No post basic training / continuing education avenues • No avenues for upgrading professional level
Achievements • Starting BSc. Radiogaphy course at University of Peradeniya in 2006
Challenges • To overcome the Objections for the Degree programme by some elements of the health sector. . • To stop emplyment of unqualified personnel as radiographers in private sector
Deficiencies in present training & suggestions • Facilities incompatible with the number of trainees. • Inadiquate duration • No procedure for Recruitment of tutors • CT, MRI, NM are not included • Extention of training period – 3 years • Implementation of a Proper recruitment procedure
Future plans to upgrade the radiological technology in Sri lanka • Implementation of in-service training programme • Convert the school to university college? • External degree/lateral entry to Bsc cources ? • Service minute - implement / ammendment?
Thank you!
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