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New scanner could spot dangerous lung clots without radiation

NCT ID NCT07560293

Diagnosis Sponsor: Beijing Tsinghua Chang Gung Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study will test a new, non-invasive bedside scan (3D-EIT) to see if it can accurately diagnose and monitor pulmonary embolism (blood clots in the lungs) without using radiation. About 115 adults with and without clots will participate. The goal is to provide a safer, easier way to detect and track this serious condition.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 115 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

May 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Participants will be recruited from Beijing Tsinghua Changgung Hospital. The study population will include: (1) adult patients with a first episode of pulmonary embolism confirmed by CT pulmonary angiography, and (2) control participants without pulmonary embolism or deep vein thrombosis who are scheduled for saphenous vein radiofrequency ablation for varicose veins. Control participants will undergo screening to exclude venous thromboembolism before enrollment.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18 years or older * Body mass index (BMI) less than 50 kg/m² * Able to provide written informed consent * first episode of pulmonary embolism confirmed by CT pulmonary angiography (CTPA), with or without CT venography (CTV) Exclusion Criteria: * Previous diagnosis of pulmonary embolism * Pregnancy * Thoracic deformity or chest wall abnormality preventing proper placement of the EIT electrode belt * Contraindications to EIT use, including implantable cardioverter-defibrillator, pacemaker, implanted pumps, or chest wounds limiting electrode placement * Concurrent participation in another interventional clinical study Hemodynamic instability requiring emergency intervention that precludes completion of the EIT examination (PE cohort only) * Any other condition judged by the investigator to make the participant unsuitable for study participation

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Conditions

The condition(s) this trial relates to.

disease pulmonary embolism venous thromboembolism

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Pulmonary embolism (diagnosis) Venous thromboembolism (VTE)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  2. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

More trials for these conditions

Other studies related to the condition(s) this trial covers.