[New techniques in computed tomography. Significance for urology]

Area of Science:

• Radiology
• Urology
• Medical Imaging

Background:

• Computed tomographic (CT) imaging is the preferred method for evaluating urological malignancies.
• Multi-slice CT offers faster scans and higher resolution, improving image quality.
• Advanced imaging strategies are vital for accurate diagnosis and treatment planning.

Purpose of the Study:

• To highlight the advancements in CT imaging for urological conditions.
• To discuss the benefits of thin-slice, high-resolution CT for T-staging.
• To explore the utility of 3D post-processing and unenhanced CT in urological imaging.

Main Methods:

• Review of current literature on multi-slice CT, thin-slice imaging, and 3D post-processing (CT-angiography, CT-urography).
• Comparison of unenhanced CT with conventional urography for stone disease detection.
• Mention of Positron Emission Tomography/Computed Tomography (PET/CT) for tumor assessment.

Main Results:

• Thin-slice, high-resolution CT improves T-staging accuracy, particularly for renal cell carcinomas.
• 3D post-processing aids in surgical planning by visualizing vascular supply and ureters.
• Unenhanced CT demonstrates high sensitivity and specificity for detecting kidney stones.
• Unenhanced CT has largely replaced conventional urography in the USA due to speed and no contrast requirement.

Conclusions:

• Advanced CT techniques significantly enhance the assessment of urological malignancies and stone disease.
• CT imaging, especially with multi-slice and advanced post-processing, is indispensable for modern urological diagnostics and surgical planning.
• Further research is needed on the role of PET/CT in urological tumor evaluation.