Evaluation of anatomical structure and vascular flow of craniocervical vessels by using the upright-position computed tomography compared with supine position.

Evaluation of anatomical structure and vascular flow of craniocervical vessels by using the upright-position computed tomography compared with supine position. - Evaluation of anatomical structure and vascular flow of craniocervical vessels by using the upright-position computed tomography compared with supine position.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000032999

Enrollment

Registered

2018-06-15

Start date

2018-07-01

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

normal volunteers

Interventions

take the contrast-enhanced computed tomography at supine position and sitting position

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Male and female healthy volunteers from 30s to 80s who understand this clinical research

Exclusion criteria

Exclusion criteria: 1. pregnant women and women with possibility of pregnancy 2. those who have and had asthma 3. those who have a side effect history on iodine contrast agent 4. persons with impaired renal function 5. persons with symptoms of some kinds of disease 6. those who cannot undergo supine position CT or sitting position CT 7. those whose consent to this clinical trial cannot be obtained

Design outcomes

Primary

Measure	Time frame
Diameter and blood flow of superior sagittal sinus, straight sinus, transverse sinus, sigmoid sinus, confluence, internal jugular vein, external jugular vein, superior petrosal sinus, and inferior petrosal sinus.	—

Countries

Japan

Contacts

Public ContactKenzo Kosugi

Keio University School of Medicine Neurosurgery

kensan03977@yahoo.co.jp(03)-3353-1211

Outcome results

None listed

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