A Random Selection of Patients From the SENTRY Study Who Have a Bioconverted Sentry IVC Filter in Situ With a Minimum Dwell Time of 24 Months From a Single Center Follow up

A Random Selection of Patients From the SENTRY Study Who Have a Bioconverted Sentry IVC Filter in Situ With a Minimum Dwell Time of 24 Months From a Single Center

IVUS Evaluation of the Bioabsorbable Sentry IVC Filter 3-5 Years Post Deployment Follow up

IVUS Evaluation of the Bioabsorbable Sentry IVC Filter 3-5 Years Post Deployment Follow up

Inclusion Criteria:

• 18 years of age
• Signed the informed consent document
• Participants from the SENTRY clinical trial willing to undergo one time IVUS evaluation ( outpatient )

Exclusion Criteria:

• Any filter that remained non converted.