Effect of gravity on anatomical structures of the human body: evaluation using Upright CT

Effect of gravity on anatomical structures of the human body: evaluation using Upright CT - Effect of gravity on anatomical structures of the human body

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000043621

Enrollment

1200

Registered

2021-03-16

Start date

2021-04-01

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

1. Healthy volunteers 2. Patients who may have a different symptom or an anatomical structure between upright and supine positions

Interventions

Conventional CT in the supine position Upright CT in the standing and sitting positions

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy volunteers (age equal to or more than 18 years) 2. Patients who may have a different symptom or an anatomical structure between the upright and supine positions, and who are referred for conventional CT examination (age equal to or more than 18 years) 3. Subjects who provide written informed consent

Exclusion criteria

Exclusion criteria: 1. Subjects who do not provide written informed consent 2. Known or possible pregnancy 3. Claustrophobia 4. Subjects who are not able to undergo CT examination 5. In case of using iodine contrast agent, subjects with a history of allergy of iodine contrast agent, with asthma, or with impaired renal function

Design outcomes

Primary

Measure	Time frame
Morphological parameters on images	—

Countries

Japan

Contacts

Public ContactYoshitake Yamada

Keio University School of Medicine Department of Radiology

yamada@rad.med.keio.ac.jp03-5363-3837(+81-3-5363-3837)

Outcome results

None listed

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