Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

GI Radiology

Gastroenterology

QuestionAnswer
Radiography common uses Bowel Obstruction (adhesions, Hernias, Volvulus, intussusception); Adynamic Ileus; Free air (upright & LLD)
SBO on xray dilated bowel (SB > 3 cm, LB > 6 cm, cecum > 9 cm); poss free air; may also be post-op ileus
US uses Cholecystitis; Liver cirrhosis; Patency of hepatic vessels; Intussusception (kids); Appendicitis (kids)
Normal GB on US dark (anechoic); bright tissue interfaces (GB wall)
US: Cholecystitis findings Wall thickening, pericholecystic fluid, sonographic Murphy’s sign
Fluoroscopy uses: Esophagus motility disorders, structure abnormalities (hiatal hernia)
Fluoroscopy uses: Small bowel Celiac sprue, Crohn disease, Midgut volvulus (children)
Fluoroscopy uses: Colon cancer screening in setting of failed colonoscopy, sigmoid or cecal volvulus
Fluoroscopy uses: Congenital structural abnormalities microcolon, anorectal malformation, Hirschsprung disease
Fluoro Esophagus single contrast (barium alone) or double (barium & air)
CT uses: Abdominal pain Appendicitis, diverticulitis, bowel obstruction, cholecystitis, biliary tract obstruction
CT other uses: Trauma; Malignancy (Detect / stage tumors)
CT uses: Complications of cirrhosis HCC, varicosities, portal hypertension
CT uses: Complications of pancreatitis abscess, pseudocyst, necrosis, hemorrhage
MRI uses: Liver lesion characterization Focal nodular hyperplasia, hepatic adenoma, HCC, hemochromatosis, hemosiderosis
MRI uses: Pancreatic cystic lesion characterization Pseudocyst, mucinous or serous neoplasms, intraductal papillary mucinous neoplasms
MRI uses: Biliary tract pathology Obstructing stones, cholangiocarcinoma
Nuclear med: uses: Biliary imaging Obstructed cystic duct (ie, cholecystitis); Bile leak
Nuclear med: uses: Lower GI bleeding Diverticulosis, malignancy, anticoagulation
HIDA If cystic duct is patent: GB accumulates radioactivity; if CBD is patent: sm bowel will accumulate radioactivity
Tc-99 tagged RBC scan tagged RBCs accumulate in area of hemorrhage
Diverticulosis/diverticulitis: sx of inflammation: fat or tissue stranding
Appendix: normal size s/b no bigger than 6 mm diameter
Pancreatic cancer diagnostic studies Abd US (shows biliary duct dilatation). CT (TOC: mass & ductal dilatation). ERCP if CT neg (double duct sx of CBD & panc duct). Lap for staging.
For resectable pancreatic tumors, aspiration bx is: contraindicated (risk of spreading tumor)
Acute pancreatitis on KUB/CXR Atelectasis. Effusion. Sentinel loop air in small bowel/LUQ
If suspect pancreatic necrosis (in pancreatitis), choose this test Abd CT with contrast on day 3
Acute panc: Abd US (purpose) to r/o or establish GB/GS/BD dilatation; enlarged hypoechoic pancreas; poss pseudocyst, edema, calcification
MRI/MRCP in pancreatitis (purpose) to detect necrosis, stones/ductal disruption
Role of endoscopic US in pancreatitis Limited role acutely. Useful in occult biliary disease (microlithiasis)
Created by: Abarnard