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Clinical Trial Summary

Computed Tomographic (CT) urography is the best imaging modality to evaluate obstructing lesions of urinary tract such as urinary stone, tumor and inflammatory lesion. The purpose of our study is to compare images of CT urography performed by low voltage and low concentrated iodine CT contrast with them of conventional CT urography.


Clinical Trial Description

Computed Tomographic (CT) urography is the best imaging modality to evaluate obstructing lesions of urinary tract such as urinary stone, tumor and inflammatory lesion. It is needed that CT urography should have the high contrast between target lesion described as filling defect and adjacent contrast filled urinary tract. For the implementation of high contras, conventional CT urography has been performed with higher voltage and higher concentrated CT contrast than another CT protocols. The higher voltage results in the more radiation exposure. And the intravenous injection of higher concentrated CT contrast results in the increase of the prevalence of contrast induced nephrotoxicity.

The purpose of our study is to compare images of CT urography performed by low voltage and low concentrated iodine CT contrast with them of conventional CT urography. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Diagnostic


Related Conditions & MeSH terms

  • Exposure to Medical Diagnostic Radiation

NCT number NCT01855204
Study type Interventional
Source Seoul National University Hospital
Contact Jeong Yeon Cho, Professor
Phone 82-2-2072-3074
Email radjycho@snu.ac.kr
Status Recruiting
Phase N/A
Start date April 2013
Completion date April 2014

See also
  Status Clinical Trial Phase
Completed NCT03580161 - Simplification of Low Level Internal Dosimetry