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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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Related Experiment Video

Updated: May 8, 2026

High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

Published on: June 21, 2011

[Proposal for contrast-amplified image reconstruction methods by adjusting computed tomography value scale in

Ryo Watanabe¹, Masato Ogawa, Masataka Shiotani

¹Department of Radiological Technology, Kitakyushu General Hospital, Japan.

Nihon Hoshasen Gijutsu Gakkai Zasshi

|August 23, 2013

Summary

This study introduces a software method to enhance computed tomography angiography (CTA) image contrast by adding pixel values, improving visualization of blood vessels without extra radiation or contrast agents.

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Area of Science:

Medical Imaging
Radiology
Image Processing

Context:

High-contrast imaging is crucial for 3D-CTA of blood vessels.
Insufficient contrast enhancement in original scans necessitates reexamination.
Existing methods may involve increased radiation or contrast agents.

Purpose:

To develop a software-based method for amplifying image contrast in 3D-CTA.
To improve the visualization of blood vessels and surrounding tissues.
To avoid reexaminations due to poor contrast enhancement.

Summary:

A novel post-processing technique amplifies image contrast by adding the original CT image to itself with adjustable weighting.
This method enhances the difference in CT values between pixels without altering image contours.
Spatial and temporal discontinuities are prevented by using the original image data.

Impact:

Enables contrast amplification without increasing radiation exposure or requiring additional contrast medium.
Offers a technique with high clinical utility for improving 3D-CTA image quality.
Reduces the need for repeat scans, saving time and resources in medical diagnostics.