Decreasing the amount of contrast medium during aortic CT angiography

Not Applicable

• Conditions: Aortic aneurysm, aortic dissection

• Registration Number: JPRN-UMIN000030497
• Lead Sponsor: ew Tokyo Hospital

Brief Summary

1. Tomizawa N, Ito S, Nakao T, Arakawa H, Yamamoto K, Inoh S, Nojo T, Nakamura S. Double ROI Timing Bolus Technique to Perform Aortic CT Angiography With a 9-Second Contrast Injection Duration. Am J Roentgenol 2019;213(1):96-103 2. Tomizawa N, Ito S, Nakao T, Arakawa H, Yamamoto K, Inoh S, Nojo T, Nakamura S. Aortic CT Angiography Using the Double Region of Interest Timing Bolus Technique: Feasibility of 80 kVp Scanning in Lean Patients. Int J Cardiovasc Imaging 2019;35(11):2113-2121

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2017-12-21
• Study Completion: 2019-02-07
• Last Update Posted: 17 October 2023

Recruitment & Eligibility

• Status: Complete: follow-up continuing
• Sex: All
• Target Recruitment: 272

Inclusion Criteria

Not provided

Exclusion Criteria

1. Severe renal dysfunction 2. Allergy to contrast medium 3. Unable to place a 20-gauge catheter 4. Peak enhancement <100 HU during test scan or peak not detectable (From Jul 25, 2018, the amount of contrast medium would be increased when the peak enhancement is low.)

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To test whether the attenuation of the aorta would improve in spite of reducing the amount of contrast medium.

Secondary Outcome Measures

Name	Time	Method
Subjective analysis of the aorta and its branches.