Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Fund. - Contrast
Lecture 10
| Question | Answer |
|---|---|
| when a substance is introduced into the body to demonstrate structures not seen in plain film radiography | contrast exam |
| purpose of contrast exam | -demonstrate structures -eliminate need for surgery -diagnose -r/o disease |
| -gas or air -low atomic number -low x-ray absorption, will look black on a radiograph | negative contrast |
| -commonly iodine or barium compounds into organ or vessel -high atomic number -high absorption of x-rays, will appear light on a radiograph -high viscosity, resistance of fluid to flow | positive contrast |
| barium sulfate | colloidal, inert organic salt, BaSO4, suspension not a solution, insoluble in water, used in GI tract, orally and rectally, atomic #56 |
| -radiographic/flouroscopic examination of the distal pharynx, esophagus -also called a barium swallow -demonstrates diverticula, foreign bodies, perforation, or hiatal hernia -barium | esophagram |
| radiographic /flouroscopic examination of the esophagus, stomach and duodenum, also called stomach -barium -demonstrates hiatal hernia, refllux, masses, gastritis ulcers, cancer, polyps | UGI |
| radiographic/flouroscopic examination of the small intestine -may be done along with a UGI -purpose is to watch motility of the small bowl, fistulas, strictures, adhesions, tumors, crohns disease -timed study, radiographs taken every 15-30 minutes -ba | SBFT-small bowel follow through |
| radiographic/flouroscopy of the large intestine -BE, BaE, lower GI, Colon -single column -double column | barium enema |
| single column | only barium |
| double column | air and barium |
| air contrast enema -to demonstrate tumors, polyps, diverticulitis, hernias | ACBE air contrast barium enema |
| where digestion and end products are absorbed into the blood stream and lymphatic system | small bowel/intestine |
| primarily responsible for the absorption water, peristalsis of waste material, and defacation | large bowel/intestine |
| because barium is not soluble in water, if it leaks outside of the gi tract it must be removed_________ | surgically |
| water soluble, iodine based -therapeutic uses -provides less contrast than barium -iodine atomic #53 | gastrografin |
| iodine contrast media | -soluble in water -% of sodium and other organic salts -higher the concentration the higher the toxicity -urography, angiograpy, arthrography -excreted by kidneys |
| contrast medium that does not form the same ionic bonds in the body, few reactions than ionic contrast, higher cost | non-ionic contrast medium |
| radiography procedure to demonstrate the urinary system - delayed function, calculi (obstruction), inflammation, urinary retention, cysts, cancers and tumors -tomography -injection given by catheter, bolus, or drip | intravenous pyelogram-IVP |
| patient history considerations to iodinated contrast medium | -food allergies -reactions to previous contrast medium -asthma -allergies to drugs -diabetes, myeloma, thyroid, sickle cell |
| radiographic examination of the urinary bladder -injection via catheter in bladder -investigate the bladder for any abnormal fistulas diverticula, tumors or obstruction (prostate) -300-500cc of contrast | cystogram |
| radiographic examination of urinary bladder and urethra -injection of water soluble contrast into bladder via urinary catheter -once filled the patient is asked to void while radiographs are taken to watch voiding -investigate for reflux into ureters | voiding cystourethrogram - VCUG |
| performed in surgery -catheter inserted into ureters through the bladder -contrast injected for visualization of the renal/pelvis and ureters -C-arm used to demonstrate the ureters -images are taken when surgeon requests | retrograde pyelogram |
| biliary systems exams | gallbladder, oral cholecystogram, telepaque, bilivist, oragraphin -to demonstrate the gallbladders ability to remove and excrete bile/contrast |
| -performed in surgery during cholecystectomy -checks ducts for residual stones -looks for lesions, strictures, and patency of ducts -C-arm used to see biliary system | operative cholangiogram |
| a radiographic /flouroscopic exam of the pancreatic duct -evaluates the sphincter of odi and ampulla of vater -radiologist or gastric/internal medicine physician directs camera to the biliary tree -contrast is injected to demonstrate biliary system | endoscopic retrograde cholangiopancreatogram ERCP |
| -a radiographic/flouroscopic exam of the spinal canal, L3-L4 interspace -investigates the spinal canal for tumors lesions, or a herniated disk -patient lies prone, radiologist inserts needle into subarachnoid space to inject contrast | myelogram |
| -a radiographic/flouroscopic exam of the uterus and fallopian tubes -to investigate the patency of fallopian tubes -infertility | hysterosalpingogram |
| a radiographic/flouroscopic exam of the joints -injection of water-soluble contrast into joint space -demonstrate injury or disease -shoulder-rotator cuff, knee-meniscus or torn ligaments -after contrast injection, patient is taken to CT or MRI | arthrogram |
Created by:
teresachristensen
Popular Radiology sets