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What a difference a delay makes! CT urogram: a pictorial essay
Abraham Noorbakhsh1, Lejla Aganovic1,2, Noushin Vahdat1,2
1Department of Radiology, University of California, San Diego Health, San Diego, USA.
Abdominal Radiology (New York)
|June 20, 2019
Summary
The excretory phase of CT urography is crucial for diagnosing urinary tract abnormalities. This imaging phase enhances detection of malignancies and other conditions, proving essential when other methods fall short.
Area of Science:
- Radiology
- Urologic Imaging
- Diagnostic Imaging
Background:
- CT urography is a key imaging modality for hematuria evaluation and urinary tract cancer staging.
- It involves non-contrast, nephrographic, and excretory phases, with the latter crucial for visualizing the collecting system.
Purpose of the Study:
- To highlight the indispensable role of the excretory phase in CT urography for challenging diagnoses.
- To present cases where the excretory phase was critical for accurate diagnosis.
Main Methods:
- Review of sixteen clinical cases illustrating the utility of CT urography's excretory phase.
- Brief discussion of CT urography technique and dose reduction strategies.
Main Results:
- The excretory phase allows for enhanced detection of filling defects and abnormalities within the urinary collecting system.
- Sixteen cases demonstrated the diagnostic value of this specific imaging phase.
Conclusions:
- Excretory phase CT urography is vital for diagnosing urinary tract malignancies, stones, and congenital or inflammatory conditions.
- It is an essential tool for characterizing various renal and perinephric abnormalities.
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