Aortic Distensibility

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Abdominal aortic aneurysm
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Cook – Abdominal aortic aneurysm Cordis Corporation – Abdominal Aortic Aneurysm
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Brief Title

Aortic Distensibility

Official Title

ECG-Gated Multidetector CT of Aortic Distensibility FAMRI

Brief Summary

      Can software be developed to automatically aid in the measurement of abdominal aortic
      aneurysms, and is there a way to predict future rupture or growth of abdominal aortic
      aneurysms.

Detailed Description

      Hypothesis: ECG-gated multidetector CT and ECG-gated Dual Source CT can be used to create
      multiple volumetric datasets of the abdominal aorta over the time period of the cardiac
      cycle, allowing for direct and regional calculations of abdominal aortic distensibility over
      the entire volume of the abdominal aorta, providing insight into risk of abdominal aortic
      aneurysm rupture and early large vessel stiffness.

Study Type

Observational

Primary Outcome

In year one, this data will be used to develop pulsatility software and test robustness.

Secondary Outcome

 In year two, the time-resolved CT angiographic datasets from each patient will be analyzed to determine peak AAA pulsatility and peak AAA relative pulsatility (to cross-sectional area within the aneurysm).

Condition

Abdominal Aortic Aneurysm

Study Arms / Comparison Groups

 1
Description:  Aortic aneurysm repair

Publications

* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Estimated Enrollment

67

Start Date

November 2004

Completion Date

July 2009

Primary Completion Date

July 2009

Eligibility Criteria

        Inclusion Criteria:

          -  AAA must be at least 3 cm to a maximum 4.9cm cross-sectional diameter.

          -  BMI 31 or less.

          -  Creatinine results <2.0 and within six months prior to scan.

          -  US patients must have only normal creatinine (0.9 to 1.4) for one year before study
             visit.

          -  Patients who are originally scheduled for US, who are then subsequently rolled in this
             study, will have only a ultrasound scan as followup after the initial CTA.

        Exclusion Criteria:

          -  Creatinine > 2.0.

          -  Creatinine <0.9 or >1.4 for those who are scheduled for US.

          -  Atrial fibrillation or other arrythmia.

          -  Known AAA greater than 5 cm in size.

          -  Allergy to contrast dye.

Gender

All

Ages

18 Years - N/A

Accepts Healthy Volunteers

No

Contacts

Joel G. Fletcher, M.D., ,

Location Countries

United States

Location Countries

United States

Administrative Informations

NCT ID

NCT00587977

Organization ID

1994-04

Secondary IDs

2A3360

Study Sponsor

Mayo Clinic

Collaborators

 Flight Attendant Medical Research Institute

Study Sponsor

Joel G. Fletcher, M.D., Principal Investigator, Mayo Clinic - Rochester, Minnesota

Verification Date

November 2012