Prelim Flashcards
A practice of exposing a disease to various
types of radiation while also trying to
protect the unaffected parts of the patient’s
body from radiation exposure.
• Treatment of a disease particularly malignant
tumors or cancer using ionizing radiation
Radiation Therapy
General Objectives:
§ “
To deliver maximum dose to the tumor
while giving the minimum dose to the
surrounding normal tissues or cells
3 aims of radiation theraphy
Curative
Prophylactic
Palliative
– to prolong the life of the patient
and provide the best quality of life.
Palliative
– to prevent distant metastases
Prophylactic
Four Specific Modes of Treatment
Surgery
Radiotheraphy
Cytotoxic Drugs
Hormones treatment
2 classffication of treatment
Radical, Palliative
Multiple beam radiation)
the attempt, heroic, if necessary, to
remove all malignancy present
Radical
(simple) – if radical
treatment is thought to be
impossible, the aim is to relieve
symptoms
Palliative
Amount of dose given is dependent on:
Size, extent and type of tumor
4 Persons Involved in Radiation Therapy
Medical physicists
Radiation dosimetrist
Radiation therapist
Oncology Nurse
‒ Study of tumors
Oncology
medical specialty involving
the treatment of
cancerous lesions using
ionizing radiation.
Radiation Oncology ‒
Doctor of medicine
specializing in use of ionizing
radiation in the treatment of
disease and prescribes the
quantity of radiation and
determines the anatomic
region/s to be treated
Radiation Oncologist ‒
‒ doctor of
medicine specializing in
the study of tumors.
Oncologist
• is responsible for calibration and maintenance
of the radiation-producing equipment.
• The physicist also advises the physician about
dosage calculation and complex treatment
technique.
Medical physicists
• The person responsible for the calculation of the
proper radiation treatment dose who assist the
radiation oncologist in designing the individual
treatment plans
Medical dosimetrist
• Educating patient about potential radiation side effects and assisting patients with the management of the side effects.
Oncology Nurse
2 types of Radiation Therapy
- External Beam Radiation Therapy (EBRT)
- Brachytherapy
4 several variation of normal growth
Hypertrophy
Neoplasia
Hyperplasia
Metaplasia
of organ the as in heart muscle when the heart has to work against increase resistance
Hypertrophy