Tracking / Tracing Ureter pada MSCT Urografi Non Kontras di SIEMENS Somatom.go.top

Summary

In this instructional video, the presenter guides viewers through the process of performing non-contrast urography, focusing on ureter tracking (racing) techniques. The video begins with an overview of urinary tract anatomy, highlighting key differences between male and female ureters. Step-by-step, the presenter demonstrates how to navigate the ureter from proximal to distal regions, emphasizing careful observation to avoid misidentifying structures such as arteries or ducts. Detailed instructions on using imaging software to adjust views, create sagittal and coronal series, and correctly save results are provided. The video concludes with practical tips and encourages viewers to apply these methods for effective radiologic evaluation.

Takeaways

• 😀 Non-contrast urography is a radiologic examination used to evaluate the urinary tract, including kidneys, ureters, bladder, and urethra.
• 😀 Ureter tracking (racing) is a crucial step for accurate reconstruction and diagnosis in urography.
• 😀 Understanding urinary tract anatomy is essential: ureters run inferiorly along the lateral pelvic wall and cross anterior to the internal iliac artery.
• 😀 Male ureters cross the ductus deferens, while female ureters are close to the ovaries; awareness of these differences prevents misinterpretation.
• 😀 Patient preparation is minimal: drinking plenty of water and holding urine improves visualization during the scan.
• 😀 The tracking process involves navigating axial, coronal, and sagittal image slices in the workstation software.
• 😀 Important landmarks to monitor during tracking include the iliac arteries, psoas muscle, and sex-specific structures (ductus deferens or ovaries).
• 😀 Image parameters should be adjusted for clarity, including slice thickness and locking images to prevent errors during review.
• 😀 Accurate labeling and saving of tracked ureter images is essential for documentation and future reference.
• 😀 Common pitfalls include confusing arterial calcifications with ureter stones and breaking the continuity of the ureter during tracking.
• 😀 Both right and left ureters must be tracked separately to ensure complete and accurate imaging for diagnosis.

Q & A

What is the purpose of non-contrast cystography or ureteral tracking?

Non-contrast cystography is a radiological procedure using CT scans to evaluate the urinary tract, particularly the kidneys, ureters, bladder, and urethra. It helps to track and assess the condition of the ureters and identify potential issues like stones or calcifications.

How does the anatomy of the urinary tract affect ureteral tracking?

The anatomy of the urinary tract is crucial for accurate ureteral tracking. The ureters run along the pelvis and pass near key structures like the iliac arteries, the psoas muscle, and in males, the ductus deferens. These structures need to be carefully considered during tracking to avoid misinterpretation of the images.

Why is it important to track the ureters when performing cystography?

Tracking the ureters is essential for identifying conditions such as kidney stones, calcifications, or other abnormalities. The ureters' path must be followed closely to ensure that the images produced are accurate and provide a clear representation of the urinary tract.

What preparation is required from the patient before undergoing non-contrast cystography?

The patient should be encouraged to drink plenty of water to fill the bladder and should try to hold urine until they feel the urge to urinate. This helps to improve the clarity of the ureteral tracking during the procedure.

How do you differentiate between stones and calcifications during ureteral tracking?

During ureteral tracking, it is important to distinguish between stones and calcifications, especially around the iliac arteries. Stones typically appear differently on the images compared to calcifications, so careful observation and precise tracking are needed to avoid misinterpretation.

What is the role of the iliac arteries in the imaging process?

The iliac arteries are important landmarks in the imaging process as the ureters run near them. They can sometimes overlap in the images, and this must be carefully considered to avoid confusion with stones or other conditions.

Why is it necessary to observe the patient's ureteral position before starting the tracking process?

Understanding the patient's ureteral position before starting tracking helps ensure accurate identification of the ureter's path, avoiding misalignment in the images and leading to better diagnostic accuracy.

What steps are taken to ensure accurate tracking of the ureters in the images?

Accurate tracking involves using axial, coronal, and sagittal cuts during imaging. The technician needs to observe and adjust the images as the ureters are tracked, ensuring that no structures are overlooked and the path is correctly followed from the kidneys to the bladder.

How do you adjust the technical settings during ureteral tracking?

Technical settings such as image thickness and contrast can be adjusted to enhance the clarity of the images. In this process, the slice thickness is often set to 1mm to ensure high-quality images that clearly show the ureteral pathway.

What happens after the ureteral tracking is completed?

After completing the ureteral tracking, the images are analyzed and saved under appropriate labels for further review. These images can then be used for diagnosis, showing the condition of the ureters, whether there are stones, calcifications, or other abnormalities.