Dual-View ultrasound could make artery punctures safer and faster
NCT ID NCT07708532
First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time
Summary
This study compares a new biplanar handheld ultrasound system, which shows both a long-axis and short-axis view of the artery at the same time, with a standard ultrasound that shows only one view at a time. The goal is to see if the new device helps doctors successfully insert a catheter into the radial artery on the first try more often. About 152 adults scheduled for cerebral angiography or neurointerventional procedures through the wrist will take part.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A biplanar handheld ultrasound system that shows two views of the artery at once, compared with a standard ultrasound that shows one view at a time.
- What this could lead to
- If it works, this could make radial artery punctures faster and more successful on the first try, reducing patient discomfort and procedure time.
- What could go wrong
- This is a single-center trial with 152 participants, so results may not apply to all settings. The new device may not improve success rates or could be harder to use.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 152 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2026
- Expected to finish
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Apr 2027
An estimate. End dates often move.
- 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.
- 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: 1. Adults aged 18 years or older, regardless of sex, who are scheduled to undergo cerebral angiography or neurointerventional treatment through a transradial approach. 2. Adequate collateral circulation between the radial and ulnar arteries, as demonstrated by the modified Allen test or vascular ultrasound. 3. Radial artery diameter of at least 1.5 mm on preprocedural ultrasound examination. 4. Ability to understand the study procedures, willingness to participate voluntarily, and provision of written informed consent. Exclusion Criteria: 1. Infection or skin damage at the intended puncture site; known radial artery occlusion or severe stenosis; or inadequate collateral circulation between the radial and ulnar arteries. 2. Radial artery diameter of less than 1.5 mm on preprocedural ultrasound examination, or severe radial artery tortuosity or anatomical variation that may interfere with the puncture procedure. 3. Previous puncture, surgery, or trauma involving the radial artery on the intended puncture side that may have altered the local anatomy. 4. Hemodynamic instability requiring urgent hemodynamic support, including cardiogenic shock or severe hypotension. 5. Impaired consciousness, psychiatric illness, or any other condition that prevents the participant from cooperating with the study procedures or completing the required follow-up. 6. Severe coagulation abnormality, defined as an international normalized ratio greater than 1.8 or a platelet count below 80 × 10\^9/L.
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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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Shanghai Fourth People's Hospital
Shanghai, Shanghai Municipality, 200435, China
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