Ultrasound With Subharmonic Imaging and Subharmonic Aided Pressure Estimation (SHAPE) to Identify Portal Hypertension (NCT06797193)
Invoking Subharmonics and Subharmonic Aided Pressure Estimation (SHAPE) for Identifying Portal Hypertension
🩺 Plain-English Summary (8th-Grade Level)
This clinical trial tests the how well an ultrasound with subharmonic imaging and the subharmonic aided pressure estimation (SHAPE) technique works in identifying portal hypertension (PH). An ultrasound takes pictures of the inside of the body by bouncing sound waves off organs. PH is high blood pressure in the vein that carries blood to the liver from the stomach, small and large intestines, spleen, pancreas, and gallbladder. The complications associated with PH are clear only after severe liver dysfunction or liver cirrhosis develops and are accompanied by relatively high mortality rates (20-70% mortality within 2 years). Thus, identifying PH earlier is beneficial. The hepatic venous pressure gradient (HVPG) obtained using an invasive catheterization procedure remains the standard for assessing PH. However, using this invasive procedure to assess PH prevents frequent pressure monitoring. Thus, a noninvasive technique to estimate PH is beneficial not only for diagnosis but also for monitoring treatment and disease progression. The SHAPE technique is a noninvasive ultrasound-based imaging technique that can estimate pressure with an ultrasound contrast agent. A noninvasive technique using an ultrasound with subharmonic imaging and the SHAPE technique may work in identifying PH.
Who can join: To join this study, participants generally need to meet the listed inclusion criteria (5 items) and avoid the listed exclusions (4 items).
Location: Mayo Clinic in Arizona — Scottsdale, Arizona
Age range: 18 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistCheck every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).
Usually NOT eligible if any of the following apply:
- Exclusion Criteria:
- Patients who are unable to provide consent
- Females who are pregnant or nursing
- Patients with known or suspected hypersensitivity to perflutren lipid microsphere or its components, such as polyethylene glycol (PEG)
🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.
📍 All Participating Trial Locations (3 Sites)
- Mayo Clinic in Arizona — Scottsdale, Arizona
- Mayo Clinic in Florida — Jacksonville, Florida
- Mayo Clinic in Rochester — Rochester, Minnesota
📞 Contact the Study Coordinator
Phone: (855) 776-0015
Email: mayocliniccancerstudies@mayo.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Portal Hypertension
- The BD Liverty™ TIPS Stent Graft Study — Palo Alto, California
Explore by condition: All Portal Hypertension clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.