Clinical Trials
Below are current clinical trials.
26 studies in Ultrasound Research Center (all studies, either open or closed).
Filter this list of studies by location, status and more.
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Rochester, Minn.
The purpose of this study is to evaluate whether or not the diaphragm and abdominal muscle thickness determine the duration of mechanical ventilation in adult critically ill patients.
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Rochester, Minn.
The overall objective of this study is to assess the reproducibility of carotid doppler velocity measurements in the presence of disease.
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Scottsdale/Phoenix, Ariz.
The purpose of this study is to compare the use of ultrasound guidance and nerve stimulator guidance with a popliteal (knee) nerve block for postoperative pain control.
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Jacksonville, Fla.
The purpose of this study is to benchmark the feasibility of carotid artery biomechanical analysis and vertebral-basilar Transcranial Doppler (TCD) as markers of vascular involvement in presbyacusis and presbyvestibulopathy.
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Rochester, Minn.
The objective of the study is to determine if there is a difference in ultrasound image quality of the interscalene block anatomy, at point of care, pre- versus post-operatively in a cohort of patients undergoing shoulder arthroscopy who routinely receive blockade of the brachial plexus for postoperative analgesia.
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Rochester, Minn.
The purpose of this study is to investigate hospitalized, non-ICU patients undergoing intermittent hemodialysis (HD) to determine:
- If the combined use of lung and intra-abdominal vessels ultrasound in volume assessment would be better for estimation of dry weight
- If the changes of the lung ultrasound B line numbers as well as portal venous flow pulsatility and IVC diameters could predict intra-dialytic manifestations and/or complications, such as hypotension, hypertension, tachycardia, and change in oxygen requirements
- If findings seen with a hand-held scanner are similar to a portable ultrasound scanner
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Rochester, Minn.
The purpose of this study is to see if using two-dimensional speckle tracking echocardiography improves the initial diagnosis of acute coronary syndrome in patients with chest pain who visit the emergency department.
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Rochester, Minn.
Hypothesis: Identification of vulnerable atherosclerotic plaques (with or without neovascularization) using carotid CEUS is an independent predictor of MACE (over clinical risk factors, stress echo wall motion results, and carotid ultrasound two-dimensional speckle tracking strain indices).
Primary Aims:
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Evaluate the diagnostic role of carotid CEUS and two-dimensional speckle tracking strain imaging for detection of carotid plaque:
- To determine the feasibility and safety of Carotid CEUS and Two-dimensional speckle tracking strain imaging SE .
- To determine if carotid CEUS and two-dimensional speckle tracking strain imaging findings are associated with coronary angiographic results in those patients undergoing clinically indicated cardiac catheterization.
- To determine the diagnostic accuracy of CEUS in identifying a vulnerable atherosclerotic plaque and neovascularization compared to carotid MRI, in a subset of patients.
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Evaluate the prognostic role of carotid CEUS and two-dimensional speckle tracking strain imaging for prediction of MACE:
- To determine if plaque identification (with or without neovascularization) on Carotid CEUS SE can improve the overall prediction of MACE over stress echo results alone
- To determine if Carotid ultrasound two-dimensional speckle tracking strain indices can improve the overall prediction of MACE over stress echo results alone.
- To determine if the detection of plaque neovascularization by Carotid CEUS is an independent predictor of MACE (over clinical risk factors, stress echo wall motion results, and carotid ultrasound two-dimensional speckle tracking strain indices).
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Rochester, Minn.
The purpose of this study is to determine if ultrasound surface wave elastography (USWE) produces different recording patterns in healthy and lymphadematous limbs, to establish the relationship between USWE recording values and stages of lymphedema, and to understand the correlation between USWE lymphedema evaluation and other tracking modalities.
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Rochester, Minn., Scottsdale/Phoenix, Ariz.
The purpose of this study is to evaluate digital tomosynthesis (3-D) mammography and digital mammography in screening patients for breast cancer. Screening for breast cancer with tomosynthesis mammography may be superior to digital mammography for breast cancer screening and may help reduce the need for additional imaging or treatment.