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Development and evaluation of a breathing system to maintain carbondioxide level in the body for radiological investigation

Development and evaluation of a MRI compatible non- rebreathing sequential gas delivery circuit to maintain constant end tidal Carbon dioxide (ETCO2), to be used for Cerebro Vascular Reactivity (CVR) assessment using fMRI and allied techniques.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2018/03/012360
Enrollment
15
Registered
2018-03-06
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

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

Conditions

None listed

Interventions

Intervention1: Sequential gas delivery circuit: Apply on the face and breath normally. A set of baseline carbondioxide value is obtained. Control Intervention1: Sequential gas delivery circuit: 10% ca

Sponsors

SCTIMST
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Healthy adult humans in 20-50 years of age

Exclusion criteria

Exclusion criteria: Exclusion: Smokers, persons with cardiovascular and respiratory illness such as COPD, asthma, valvular and ischemic heart disease

Design outcomes

Primary

MeasureTime frame
Sustained rise in end tidal carbondioxide for the desired durationTimepoint: after introduction of reserve gas flow—

Secondary

MeasureTime frame
Rise in arterial carbondioxide.Timepoint: At the same time as the rise in endtidal carbondioxide—

Countries

India

Contacts

Public ContactDr P Gayatri

Sree Chitra Tirunal Institute for Medical Sciences and Technology

bejoy@sctimst.ac.in

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026