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28 Cards in this Set
- Front
- Back
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abdominal imaging modalities
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plain, UGI, SBFT, BE, US, CT, MRI, NM
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what can you see on Plain Film
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bowel obstruction
Gallstones (85% are missed) Renal stones (most show up) pancreatic calcifications vascular calcifications appendicolith pneumoperitoneum |
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most common cause of bowel obstruction
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adhesions
also hernia, tumor or volvulus |
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best imaging for bowel obstruction
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CT, SBFT, plain films
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best imaging for gallstones
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abdominal u/s
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evaluate painful hemauturia
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kidney stones
CT is best modality |
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most common cause of pancreatic calcifications
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EtOH
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response to pneumoperitoneum
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surgical emergency- don't wait for radiologist
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best imaging for appendicitis
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CT can make deffinitive dx
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UGI will show...
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Ulcer, mass, infection
Anatomy r/o perforation |
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single contrast
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barium only
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double contrast
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barium + air (fizzy gas)
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esophageal dz seen on UGI
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herpes- ulcers & edema
candida- nodular GERD- Tumors |
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thickened folds, ulcerations, poor peristalsis on UGI
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GERD
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ulcers & edema on UGI
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herpes
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nodular area on UGI
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candida
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types of esophageal tumors
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90% squamous cell carcinoma
10% adenocarcinoma typically don't present until very advanced |
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stomach dz seen on UGI
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hiatal hernia, gastritis, ulcer, tumor
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conditions seen with SBFT
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obstruction, tumor, inflammation, Crohn's
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appearance of SI on SBFT
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Duodenum= curve
Jejunum= folds Ileum = non-specific |
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strictures on SBFT & hx of GI distress, worsening diarrhea (oily, stinky), wt loss
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Crohn's dz
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conditions seen w/barium enema
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good for small polyps
apple core lesion ulcerative colitis |
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constipation & pencil thin feces
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"apple core lesion"
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fever, WBC elevated, LLQ pain
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diverticulitis
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conditions seen on abdominal u/s
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differentiate RUQ pain
preferred for female pelvic pain (& ectopic) suspected abdominal aortic aneurysm |
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RUQ differential
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Gallbladder dz- Biliary obstruction
Liver dz- w/ Hep C (CT/MRI better), Pancreatic dz ascites |
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obese, female, DM
"mobile echogenic focus w/posterior acoustical shadowing" |
gallbladder dz
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uses for abdominal CT
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preferred for tumor, acute abdomen, trauma, appendicitis
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