Study of fixed current and automatic tube current under low fixed tube voltage in low-dose CT scan of infant lung

Application of 128-slice spiral CT in low dose chest scanning in children

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2200065449

Enrollment

Unknown

Registered

2022-11-04

Start date

2019-02-23

Completion date

Unknown

Last updated

2023-05-15

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

Conditions

chest CT

Interventions

the experimental group:fixed tube current 30 mAs

the control group:automatic tube current technique 30-150 mAs

Eligibility

Sex/Gender

All

Age

1 Years to 3 Years

Inclusion criteria

Inclusion criteria: Infants with a body mass index of 5% < BMI < 95%, who need to come to our department to complete chest CT due to illness.

Exclusion criteria

Exclusion criteria: 1. With an imaging diagnosis of no massive pneumothorax, no pleural effusion, no lung consolidation, no large substantial tumors, no severe thoracic deformities, no severe cardiac abnormalities, no hepatic and renal insufficiency; 2. No allergy to iodine, and no enhanced CT or iodine contrast input within 14 days.

Design outcomes

Primary

Measure	Time frame
radiation dose;SNR, Signal-Noise Ration;the subjective quality of the images;	—

Countries

China

Contacts

Public ContactLin He

Children's Hospital of Chongqing Medical University

480056@hospital.cqmu.edu.cn+86 13983399138

Outcome results

None listed

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