Podcast
Questions and Answers
What primary purpose does radionuclide cystography serve?
What primary purpose does radionuclide cystography serve?
- Evaluate vesicoureteral reflux. (correct)
- Assess bladder capacity during fluid retention.
- Monitor bladder wall thickness changes.
- Detect kidney stones before surgical procedure.
What complication can result from untreated vesicoureteral reflux?
What complication can result from untreated vesicoureteral reflux?
- Formation of bladder tumors.
- Recurrent urinary tract infections and potential kidney damage. (correct)
- Temporary incontinence during voiding.
- Increased bladder wall elasticity.
Which step is NOT part of the direct method in radionuclide cystography?
Which step is NOT part of the direct method in radionuclide cystography?
- Catheterize the patient.
- Encourage the patient to void into a bed pan.
- Administer a functional renal agent intravenously. (correct)
- Obtain multiple sequential images as the bladder fills.
During the direct method of radionuclide cystography, how is the saline infused?
During the direct method of radionuclide cystography, how is the saline infused?
What characterizes a normal exam result in radionuclide cystography?
What characterizes a normal exam result in radionuclide cystography?
What is the primary method of radionuclide cystography used for evaluating vesicoureteral reflux?
What is the primary method of radionuclide cystography used for evaluating vesicoureteral reflux?
Which step is crucial before starting the direct method of radionuclide cystography?
Which step is crucial before starting the direct method of radionuclide cystography?
What imaging characteristic indicates an abnormal exam during radionuclide cystography?
What imaging characteristic indicates an abnormal exam during radionuclide cystography?
What is the typical volume of ‘Tc-pertechnetate’ used in the saline for a direct radionuclide cystography?
What is the typical volume of ‘Tc-pertechnetate’ used in the saline for a direct radionuclide cystography?
In which position should the patient be placed during the voiding phase of the procedure?
In which position should the patient be placed during the voiding phase of the procedure?
What is a potential complication of vesicoureteral reflux if left untreated?
What is a potential complication of vesicoureteral reflux if left untreated?
During the direct method, what type of images are obtained after the bladder has reached capacity?
During the direct method, what type of images are obtained after the bladder has reached capacity?
How is the degree of reflux quantified during radionuclide cystography?
How is the degree of reflux quantified during radionuclide cystography?
What is the most common population for which radionuclide cystography is used?
What is the most common population for which radionuclide cystography is used?
What is a characteristic finding during a normal radionuclide cystography exam?
What is a characteristic finding during a normal radionuclide cystography exam?
Flashcards
Vesicoureteral Reflux
Vesicoureteral Reflux
A condition where urine flows backward from the bladder to the ureters, often caused by a malformation in the ureter connection to the bladder.
Radionuclide Cystography
Radionuclide Cystography
This procedure uses a radioactive tracer to evaluate the flow of urine and identify any reflux issues. It's a common imaging technique for children.
Indirect Radionuclide Cystography
Indirect Radionuclide Cystography
This method involves administering a radioactive dye intravenously and then taking images while the patient urinates to observe reflux.
Direct Radionuclide Cystography
Direct Radionuclide Cystography
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Interpreting Radionuclide Cystography Images
Interpreting Radionuclide Cystography Images
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What is Radionuclide Cystography?
What is Radionuclide Cystography?
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What is Vesicoureteral Reflux?
What is Vesicoureteral Reflux?
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What is Direct Radionuclide Cystography?
What is Direct Radionuclide Cystography?
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What is Indirect Radionuclide Cystography?
What is Indirect Radionuclide Cystography?
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What does a normal Radionuclide Cystography exam look like?
What does a normal Radionuclide Cystography exam look like?
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What does an abnormal Radionuclide Cystography exam look like?
What does an abnormal Radionuclide Cystography exam look like?
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What quantitative information can be obtained from Radionuclide Cystography?
What quantitative information can be obtained from Radionuclide Cystography?
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What are some complications of Vesicoureteral Reflux?
What are some complications of Vesicoureteral Reflux?
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What is the most common cause of Vesicoureteral Reflux?
What is the most common cause of Vesicoureteral Reflux?
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Who is Radionuclide Cystography most commonly used in?
Who is Radionuclide Cystography most commonly used in?
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Study Notes
Radionuclide Cystography
- Purpose: Evaluate vesicoureteral reflux (VUR), a condition where urine flows backward from the bladder to the ureters. Commonly used in children.
- Cause of VUR: Often due to a congenital (present at birth) malformation in the ureters' connection to the bladder.
- Complications: Can lead to recurrent urinary tract infections (UTIs) and potential kidney damage.
Radionuclide Cystography Methods
- Two methods: Indirect and direct.
- Indirect Method: Administer a functional renal agent intravenously then image during voiding to observe reflux.
- Direct Method Steps:
- Patient voids before the study.
- Patient is catheterized.
- Catheter is connected to normal saline infused with 1 mCi (37 MBq) of Tc-pertechnetate.
- Patient is positioned supine on the imaging table, ensuring bladder visibility within the imaging field's lower portion.
- Multiple sequential images are taken as the bladder fills with radioactive saline.
- Saline infusion stops when bladder capacity is reached. A posterior pre-void image is taken, capturing the entire bladder and upper urinary tracts.
- Voiding images are obtained with the patient seated, camera against the back. The catheter is removed, and the patient voids into a bedpan/urinal.
- A post-void image is taken, including the entire bladder and upper urinary tracts.
Image Findings
- Normal: Increasing bladder activity without reflux into the ureters.
- Abnormal: Ureteral reflux, particularly during urination, with reflux increasing as the study progresses.
- Quantitative: Reflux bladder volume and the volume of reflux into the kidney can be calculated.
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Description
This quiz explores the methods and purpose of radionuclide cystography, primarily used to evaluate vesicoureteral reflux (VUR) in children. It covers both indirect and direct methods of imaging, as well as underlying causes and complications. Test your knowledge on this important diagnostic procedure and its implications.
