Study to Determine the Accuracy of a New Venous Air Plethysmograph in People with Normal, Incompetent, and Obstructed Venous Hemodynamics.


About this study

The purpose of this study is to determine the accuracy (sensitivity, specificity, negative predictive value, positive predictive value) of a new venous air plethysmograph in people with normal, incompetent, and obstructed venous hemodynamics.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:   

  • Healthy volunteers and patients referred for evaluation of possible venous disease (obstruction, incompetence, and pump function).

Exclusion Criteria: 

  • Patients less than 18 years of age.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Thom Rooke, M.D.

Open for enrollment

Contact information:

David Liedl R.N.

(507) 286-9040

More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

Not yet available


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