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DU PA Neph imaging
Duke PA Nephrology Imaging
| Question | Answer |
|---|---|
| Abdominal Radiograph or aka __ | KUB |
| Abdominal Radiograph is used for __ | evaluat bowel obstruction, detect free intraperitoneal gas, follow up of chronic renal calculi |
| tomograph | focused, moving planar x-ray source |
| When do you do a retrograde pyelogram | when intravenous pyelograph fails |
| when do you used caution with radiographic imaging | in children and pregnant women |
| indications for renal ultrasound | urinary obstruction, follow-up renal transplant complications, image guided biopsy |
| indication for renal scintigrophy | evaluate renal function |
| indications for cystogram/voiding cystourethrogram | suspected vesicoureteral reflux, post surgery/post traumatic complications |
| the biggest benifit to cystoscopy | the urologist can visualize and intervene at the same time |
| with CT, if you are specifically looking for renal stones __ | don't use contrast |
| indications fro MRI | Renal mass characterization, Renal Transplants, Renal Artery Stenosis, Pediatrics, Pregnant women |
| Imaging modality of choice for initial assessment of renal masses, cysts | CT, US(cystic masses) |
| Imaging modality of choice for initial assessment of acute renal or ureteral calculi | CT |
| Imaging modality of choice for initial assessment of chronic renal or ureteral calculi | radiograph |
| Imaging modality of choice for initial assessment of renal trauma | CT |
| When is imaging appropriate in adults with urinary tract infection | Stones or obstruction suspected, Frequent or recurrent UTI, Diagnosis is in doubt or complication suspected |
| when is imaging appropriate in kids with UTI | Imaging probably worthwhile with first febrile UTI if: 1) Pt has questionable follow-up, 2) Does not respond promptly to tx (febrile > 72 h), 3) Persistently abnormal voiding pattern (dribbling),4) Abdominal mass |
| some calculi may not be visible on radiographs, but almost all are seen on | CT |
| 50% of __ are found incidentally on imaging for other reasons | renal cell carcinoma |
| classical appearance of renal cell carcinoma | Hypervascular renal cortical mass; heterogeneous, enhancing, multilobular; hemorrhage and necrosis; coarse Ca2+ Mets to lungs, mediastinum, liver, and bone (lytic) |
| pediatric vesicoureteral reflux | Retrograde flow of urine from bladderPredisposes to recurrent infection or renal scarringSome outgrow; others require surgery |
| indications for iodine-based contrast | Opacify blood vessels, organs, GU tract for radiation-based modalities (CT, IVP) |
| risks of iodine-based contrast | allergy, nephrotoxicity |
| gadolinium-based contrast is used for | MRI |
| indication for gadolinium-based contrast | opacify blood vessels and organs for MRI |
| Risks for gadolinium-based contrast | nephrogenic systemic fibrosis, unkown effects on fetus, allergies are extraordinarily rare |
| spiral CT without contrast is the same thing as | stone protocol CT |
| something that has high attenuation shows up __ on CT | white |
| stones and bones have high __ | attenuation |
Created by:
bwyche
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