Shared Flashcard Set

Details

Radiation Therapy and Nuclear Medicine
Radiation Therapy and Nuclear Medicine
28
Health Care
Undergraduate 2
11/15/2012

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Cards

Term
Technetium-99m
Definition
Most common radionuclide in nuclear medicine exams
Term
Blocks
Definition
Custom designed molds filled with lead alloy used in radiation therapy
Term
SPECT
Definition
type of nuclear medicine exame that uses TC 99M and produces cross-sectional slices
Term
Multileaf
Definition
Type of collimator used with linear accelerator to shape the x-ray beam
Term
Sodium iodide (NaI)
Definition
Chemical composition of scintillation crystal used in nuclear medicine
Term
Photomultiplier
Definition
type of tube used in nuclear medicine to convert light to electrical impulse and amplify it
Term
Thyroid
Definition
High doses of radionuclides typically used in nuclear medicine are used to treat this gland
Term
Radionuclide
Definition
unstable atomic nucleus that decays to stability
Term
Half life
Definition
TC 99m is 6 hours
Term
Electron beam
Definition
produced by linear accelerator; primarily used for treatment of superficial structures
Term
Simulation
Definition
Process of using radiographic/fluoroscopic or CT images to define radiation therapy treatment field(s)
Term
Staging
Definition
accurate description of size and extent of tumor; based on type, location spread, lymph node involvement
Term
Hotlab
Definition
location where nuclear medicine radiopharmaceuticals are prepared
Term
Computed Tomography
Definition
PET is being combined with this modality in fusion imaging
Term
Gamma
Definition
type of radiation emitted from TC 99m
Term
Scintillation
Definition
type of crystal used in nuclear medicine studies
Term
Chemotherapy
Definition
chemical agents that prevent cells from multiplying
Term
Radiation Oncologist
Definition
individual who prescribes specific radiation therapy treatment
Term
Brachytherapy
Definition
therapeutic use of sealed radioactive sources that are placed near or within the rumor
Term
Physicist
Definition
this individual maintains and calibrates equipment
Term
Collimator
Definition
slab of lead with holes in in, used in nuclear medicine
Term
Positron
Definition
positively charged electron
Term
Resolution
Definition
PET images have greater ____________ when compared to SPECT images
Term
Radiopharmaceutical
Definition
combination of radionuclide and pharmaceutical
Term
Linear accelerator (linac)
Definition
external beam treatment unit
Term
Screening
Definition
term for diagnostic exam done on asymptomatic patients
Term
Palliation
Definition
goal of treating patients to improve their quality of life
Term
Phosphate
Definition
normally metabolized by bone; derivatives of this material are used for nuclear medicine bone scans
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