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
DM GI Radiology
Radiology GI
| Question | Answer |
|---|---|
| The best position to identify free intraperitoneal air? | Upright chest xray including the diaphragms |
| ________is an imaging technique to obtain real-time moving images of the patient with x-rays. | Fluoroscopy |
| ______Evaluates patency, extrinsic abnormalities, and luminal narrowing, but has limited evaluation of mucosal detail | Fluoroscopy |
| _________Evaluates fine mucosal detail that allow pathology from early inflammatory changes and tumor formation to be detected | Double contast Fluorscopy. Patient ingests barium followed by effervescent granules or air insufflation per rectum |
| 2D cross-sectional images of the body are made using | CT |
| _____________differ from most other imaging modalities in that tests show the physiological function of the system as opposed to traditional anatomical imaging such as CT or MRI. | Nuclear medicine. Radiotracer (such as HIDA) is injected into the patient and images are obtained with a camera |
| Best test for cholecystitis | HIDA (hepatociliary iminodiacetic acid scan. creates pictures of your liver, gallbladder, biliary tract and small intestine to evaluate for cholecystitis. |
| ___ is a nuclear medicine technique that evaluates for GI bleeds by looking for a collection of radiotracer in a distribution that matches bowel | Tc99m |
| Common indications for Abdominal radiograph | Obstruction, ileus, free air |
| Common indications for US | Cholecystitis, abdominal aortic aneurysm, Liver cirrhosis, patency of hepatic vasculature, appendicitis |
| Hiatal hernias and esophageal varices can be assessed with | barium swallows |
| Diverticulitis, colitis, colonic masses (usually in the setting of failed colonoscopy) can be assessed with | Barium enema |
| Indications for CT | cholecystitis, bowel obstruction, abdominal tumors, complications in pancreatitis and liver cirrhosis |
| Indications for MRI | Complications of liver cirrhosis, biliary tract obstructions and evaluate/stage abdominal tumors |
| _____ can be used to assess an acute lower GI bleed | Tagged RBC scan |
| Etiologies for narrowing of the distal esophagus | tumor, strictures (often GERD), Chagas, Achalasia |
| ____ can be used to assess esophageal varcies | Single-contrast barium esophagram |
| ___ reveals gastric anatomy and adenocarcinoma | Single-contrast barium |
| Linnitus plastica is a finding associated with | gastric adenocarcinoma |
| Where is it normal to have air-fluid levels? | in the colon |
| "string sign" is seen using which imaging modality in Crohn's disease? | Barium studies |
| "sunburts" pattern on a CT is consistent with what diagnosis? | Carcinoid tumor. Strands go out from the carcinoid cells to the mesenteric nodes |
| FAP can be imaged with what modality? | Double contrast barium enema |
| Ulcerative colitis can be viewed using | air-contrast barium enema |
| "apple core" is used to describe a | constricting lesion of colon adenocarcinoma. Can be imaged with double contrast barium enema |
| Study of choice to image diverticulitis | abdomen and pelvis CT |
| Imaging for Hepatocellular Carcinoma | Contrast-enhanced CT can show multiple hypodense nodules representing hepatocellular carcinoma |
| Which is more sensitve for imaging hepatocellular carcinoma? CT or MRI | MRI |
| Advantage of using MRCP in choledocholithiasis | therapeutic, can remove stones |
| Which modality is best when looking at the biliary system? MRI or CT? | MRI. You can subtract the parts that you don't want to see |
| What can be used to tell the difference between a tumor and a stone in the gallbladder? | Shadow (stone) |
| Imaging options for visualizing the pancreas | CT and MRI (contrast on board to highlight the pancreatic parenchyma) |
| Air in the pancreatic bed is indicative of | abscess and/or fistulous communication with bowel |
| Plain radiographs are useful to rule out | free air and obstruction |
| Number 1 cause of acute lower GI bleed | angiodysplasia (70-80%), Diverticular dz (33%) |
| disadvantage of CT in GI bleeds | CT is insensitive to localize the site of bleeding |
| Colonoscopy is the preferred imaging method in | GI bleeds that are hemodynamically stable. Direct visualization and therapeutic options |
| ____ is best suited for identifying slow-bleeding and needs to be done during active bleeding | Tc99m tagged RBC scan |
| _______ is best suited for briskly bleeding and needs to be done during active bleeding | mesenteric angiogram |
Created by:
ltm12