A 30-Second ultrasound trick that could spot deadly blood clots?
NCT ID NCT07098546
First seen Aug 11, 2026 · Last updated Aug 12, 2026 · Updated 1 time
Summary
This study tests whether a bedside ultrasound measurement called 'bubble time' can help diagnose pulmonary embolism (a blood clot in the lungs). Researchers will measure bubble time in 250 emergency department patients with suspected embolism and compare it to standard CT scans. The goal is to see if this quick, low-cost test can reliably identify the condition, potentially speeding up diagnosis and treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Bedside ultrasound measuring right ventricular 'bubble time'
- What this could lead to
- If effective, this quick bedside test could speed up diagnosis of pulmonary embolism, potentially reducing reliance on CT scans and enabling faster treatment decisions.
- What could go wrong
- This is an early diagnostic study, not a treatment trial. The bubble time test may not prove accurate enough to replace standard imaging, and results may vary depending on the operator.
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
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250 people
The number who actually took part.
- Started
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Jul 2025
- Finished
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Nov 2025
- Lead sponsor
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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
1.000.000
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: \- All patients presenting to the emergency department with any symptoms, undergoing pulmonary CT angiography due to suspected pulmonary embolism or evaluated as having a strong likelihood of embolism when CT cannot be performed will be included in the study. Exclusion Criteria: * Patients under the age of 18 * Patients with a severe history of tricuspid insufficiency * Patients with a severe of pulmonary hypertension * Patients with a severe of right heart failure * Patients without an echocardiographic report approved by cardiology within 48 hours after emergency admission * Patients in whom ultrasonographic measurements cannot be performed * Patients who refuse diagnosis and treatment voluntarily
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Recep Tayyip Erdoğan Üniversitesi Rize Eğitim ve Araştırma Hastanesi
Rize, Merkez, 53020, Turkey (Türkiye)