The evaluation of respiratory movement of inferior vena cava filters using four dimensional-computed tomography (prospective study)

The evaluation of respiratory movement of inferior vena cava filters using four dimensional-computed tomography (prospective study) - Filter4D

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000035597

Enrollment

Registered

2019-04-01

Start date

2019-04-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

venous thromboembolism

Interventions

four-dimensional computed tomography (approximately 1mSv during a few seconds)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The patients with inferior vena cava filters and the informed consent.

Exclusion criteria

Exclusion criteria: 1. below the age of 20 years old 2. pregnant or possible pregnant women 3. not obtained the informed consent 4. determined as not applicable by the researchers

Design outcomes

Primary

Measure	Time frame
The measurements of vector's values of the top and leg's tips of the filters between the expiratory and inspiratory phases on four-dimensional computed tomography in patients with filters.	—

Secondary

Measure	Time frame
To assess the confidential levels of caval penetration and adjacent organ injuries by filters.	—

Countries

Japan

Contacts

Public ContactJun Koizumi

Tokai University School of Medicine Diagnostic Radiology

jkoizumi@is.icc.u-tokai.ac.jp0463-93-1121

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026