3. Imaging techniques: Fluoroscopy, Radiography, Tomography, Tomosynthesis Flashcards
Fluoroscopy: explain
Real time dynamic image
Often with contrast
Diagnostic/Therapeutic
Fluoroscopy: GIT?
Barium swallow: pharynx/esophagus
Barium meal: stomach/duodenum
Barium follow: small intestine
Barium enema: colon/rectum
Evaluating swallowing, digestive tract motility, and structural abnormalities.
Positive contrast - Barium sulfate
Negative contrast - Air
Fluoroscopy: Surgery guidance?
Assisting in Orthopedic, Gastrointestinal, and Vascular surgeries.
Guiding fracture reductions, Joint injections, and Hardware placements.
Fluoroscopy: mechanism?
X ray source: continous or pulsed
Screen: FPD flat panel detector
Fluoroscopy: Cardiac
Angiography, catheterization, stent
ERCP, Fluoroscopy-guided lumbar puncture, IV catheter placement, biopsy guidance
Fluoroscopy: Hysterosalpingography?
Uterine cavity/shape/fallopian tubes
Infertility, frequent miscarriages
Fluoroscopy: advantages?
Real-time
Dynamic assessment + guided interventions
Accuracy
Fluoroscopy: disadvantages?
Radiation exposure
Image quality: movement/positioning/high-density materials
Contrast reactions: Anaphylactoid reaction
Cost and availability: high cost, limited availability
Radiography: explain
Static image
Differences in tissue densities = attenuation (bone, soft tissue, air)
Radiography: diagnostics?
Skeletal System: Identifying fractures, bone deformities, and joint abnormalities
Chest Imaging: Evaluating lungs, heart size, and detecting conditions like pneumonia or tumors
Abdominal Imaging: Assessing gastrointestinal tract, detecting obstructions, or foreign bodies
Dental Imaging: Examining teeth, jawbones, and identifying dental caries or other oral conditions
Radiography: mechanism
X-ray source
Detector/film
Radiography: image characteristics?
