402 Clinical Trials for Various Conditions
This study will evaluate the use of hyperpolarized 13C MRI (HP 13C MRI) and the HP-derived 13C pyruvate-to-lactate conversion rate constant (kPL) as an early response biomarker in men with treatment-naïve, high-risk, localized or locally advanced prostate cancer receiving neoadjuvant therapy.
The researchers are doing this study to see if one session of high-dose contrast-enhanced MRI-guided SBRT (stereotactic body radiation therapy) is effective for colorectal cancer that has spread to the liver. The researchers will evaluate how well the study treatment can prevent the liver metastasis from growing and spreading. In addition, they will see whether it causes any side effects and whether there are any characteristics of the research MRI images that can predict response to treatment.
The main purpose of this study is to measure the amyloid burden, defined as extracellular volume (ECV) assessed by Magnetic Resonance Imaging (MRI) over time in a subset of up to 150 participants enrolled in ION-682884-CS2 (NCT04136171).
This study aims to assess the feasibility of assessing acute brain injury using a portable low field MRI in patients on ECMO.
To evaluate the diagnostic performance of Tc99m sestamibi (MBI) compared to breast MRI in women who are at high risk for developing breast cancer. To assess the relationship of tumor size, histologic subtype and location of lesion and how it affects lesion conspicuity and sensitivity in MBI detected cancers.
The purpose of the study is to develop new methods for image processing and enhancement of MRI data. Different setting of acquisition parameters used in conventional clinical MRI protocols will be defined, to create "New Protocols". The specific aim of this study is to assess and to improve the performance of our image processing methods, by comparing diagnostic qualities of images obtained by conventional MRI protocols with those obtained by corresponding New Protocols' and processed by our image enhancement method.
The purpose of this study is to assess if Six-Dimensional Magnetic Resonance Imaging (6D-MRI) is effective in predicting outcomes in patients with pancreatic ductal adenocarcinoma (PDAC).
The purpose of this study is to fabricate a nasoalveolar molding (NAM) appliance that is digitally fabricated and 3 dimensionally printed utilizing an MRI face scan and to assess the fit of the NAM in new borns with cleft lip and palate.
This is a prospective imaging study evaluating the utility of baseline metabolic MR imaging as a diagnostic and response monitoring tool in patients with advanced prostate cancer. Preliminary pre-clinical and clinical data demonstrates the ability of HP C-13 pyruvate/metabolic MR imaging to detect high-grade prostate cancer, including cancer with neuroendocrine differentiation, as well as provide early evidence of metabolic response and resistance following application of systemic therapies for the treatment of advanced prostate cancer patients. In the proposed study, the investigators aim is to extend the initial clinical results and further develop HP C-13 MRI as an imaging modality in advanced prostate cancer.
Researchers in this study want to find the appropriate dose of drug BAY1747846 for adults undergoing MRI for known or highly suspected brain and/or spinal cord conditions so that the image quality is similar to that of drug gadobutrol for adults undergoing MRI. MRI stands for Magnetic resonance imaging which produces body pictures created by using magnetic energy rather than x-ray energy. Both BAY1747846 and gadobutrol are medicinal products known as gadolinium-based contrast agents (GBCA) which are used in MRI examinations to provide contrast enhancement and improve imaging performance. Gadobutrol (brand name: Gadavist, Gadovist) has been approved worldwide for the diagnosis of various disorders in adult and pediatric patients. BAY1747846 is a new GBCA under development with the goal to provide similar imaging performances in MRI. Participants in this study will receive both BAY1747846 and gadobutrol with a period of 3 - 14 days in between. A MRI examination will be performed after each injection. Participant will stay in this study for 2 - 4 weeks depending on the scheduling of the visits.
The primary objective is to assess the performance of a new magnetic resonance imaging (MRI) metrics software prototype when used in radiological practice in multiple sclerosis (MS).
the trial aims to evaluate the Efficacy and Safety of gadopiclenol for Central Nervous System (CNS) Magnetic Resonance Imaging (MRI)
The trial aims at evaluating the efficacy and the safety of gadopiclenol for body Magnetic resonance Imaging (MRI)
This study is designed to assess the efficacy of apremilast, either in monotherapy or with stable methotrexate, on imaging outcomes in adults with active psoriatic arthritis with less than 5 years of disease duration (since diagnosis), and who are naïve to biologic therapies.
This is a study primarily comparing Magnetic Resonance Imaging (MRI) alone to Positron Emission Tomography (PET)/MRI using an experimental tracer, 68Ga-PSMA-HBED-CC, among men with prostate cancer or prostatic cancer recurrence/metastasis. It is hypothesized that this comparison will demonstrate that PET using the tracer, 68Ga-PSMA-HBED-CC, is more sensitive than MRI alone. Potential subjects who cannot undergo MRI may undergo PET/CT instead.
Sodium-adapted magnetic resonance imaging (23Na-MRI) studies have demonstrated that sodium accumulates in certain tissues, including the skin and skeletal muscle, but may be manipulated by lifestyle factors or therapeutic interventions such as a hemodialysis (HD) session. This tissue sodium accumulation is increased with age and in the presence of certain chronic diseases such as renal failure, and may contribute to the development of high blood pressure. It currently not known what the impact of dietary sodium consumption has on tissue sodium in HD patient's and on the subsequent risk of cardiovascular complications either acutely or chronically. The University of Illinois' Biomedical Imaging Center recently completed safety testing on a 23Na-MRI coil that they modified for measuring skin and muscle sodium levels in the lower leg/calf that will be used for assessing the impact of dietary salt restriction on tissue sodium levels.
Background: A heart catheterization is a diagnostic heart procedure used to measure pressures and take pictures of the blood flow through the heart chambers. Magnetic resonance imaging (MRI) fluoroscopy shows continuous pictures of the heart chambers that doctors can watch while they work. Researchers want to test this procedure with catheterization tools routinely used in x-ray catheterization called guidewires. Guidewires will help move the heart catheter through the different heart chambers. Guidewires are usually considered unsafe during MRI because MRI can cause a guidewire to heat while inside the blood vessels and heart. Researchers are testing special low energy MRI settings that allow certain guidewires to be used during MRI catheterization without heating. Using these guidewires during MRI may help to decrease the amount of time you are in the MRI scanner, and the overall time the MRI catheterization procedure takes. Objectives: To test if certain MRI settings make it safe to use a guidewire during MRI fluoroscopy. Eligibility: Adults 18 and older whose doctors have recommended right heart catheterization. Design: Researchers will screen participants by reviewing their lab results and questionnaire answers. Participants may give 4 blood samples. Participants will be sedated. They will have a tube (catheter) placed in the groin, arm, or neck if they don t already have one. Patches on the skin will monitor heart rhythm. Special antennas, covered in pads, will be placed against the body. Participants will lie flat on a table that slides in and out of the MRI scanner as it makes pictures. Participants will get earplugs for the loud knocking noise. They can talk on an intercom. They will be inside the scanner for up to 2 hours. They can ask to stop at any time. During a heart catheterization, catheters will be inserted through the tubes already in place. The catheters are guided by MRI fluoroscopy into the chambers of the heart and vessels. The guidewire will help position the catheter.
Ferromagnetic Implants such as permanent pacemakers (PPM's) and Implantable Cardioverter Defibrillators (ICD's) have traditionally been accepted as contraindications to Magnetic Resonance Imaging (MRI) due to safety concerns. Over the past several years, MRI safety has been established in patients with pacemakers or ICD's but only in patients in whom strict vetting procedures were implemented. These vetting procedures were initially developed to eliminate devices, leads and device/lead circumstances thought to carry increased risk. Over recent years however, objective scientific evidence has failed to support this concern raising the question as to whether or not these vetting procedures are necessary. Investigators hypothesize that in view of the existing objective scientific data, evolution of device technology and the fact that the investigators have scanned more than 2,000 devices safely (RPN03-08-11-12 and 00051707) ICD's and pacemakers and device circumstances previously excluded from MRI protocols can be safely scanned without prior vetting. This is a prospective, non randomized, cohort study. Seventeen Hundred participants with an implanted ICD or pacemaker and a clinical need for MRI will be included in the study. Unlike previous studies where strict vetting procedures were implemented pre-procedure, All patients with a pacemaker or ICD and clinical need for an MRI will be eligible for inclusion in the study provided participants meet standard MRI inclusion/exclusion safety criteria.
This research study has 2 purposes: 1. To learn about new ways to use Magnetic Resonance Imaging (MRI) to take clearer pictures of the lungs. A type of MRI called Ultra Short Echo Time (UTE) will be used as well as traditional MRI. 2. To collect images and health information about lungs that have different kinds of lung diseases to compare to healthy lungs. This collection will help researchers and clinicians to better understand lung variations in health and disease. This study will involve one MRI session that will take about 10 to 30 minutes and for some participants a breathing test that measures how well the lungs are working. This test is called spirometry.
This research study is evaluating suitability of a delayed magnetic resonance imaging (MRI) in management of spine tumors. Currently the standard of care is obtaining an MRI scan in the early postoperative period (within 72 hours after surgery). The purpose of this study is to see if delayed MRI (2 to 3 weeks after surgery) is similar in quality to the earlier MRI. In this study patients will undergo 2 MRIs after the surgery instead of one MRI. Patients will have one MRI about 3 days after the surgery and one MRI about 2-3 weeks after surgery.
This study is a research and development initiative established to explore the use of magnetic resonance imaging (MRI) as a tool for managing organ motion of the liver in cancer patients planning procedures for stereotactic body radiation therapy (SBRT).
The purpose of this study was to determine a safe and effective dose of a new gadolinium-based contrast agent (GBCA) P03277 based on the Contrast to Noise Ratio (CNR) when comparing with gadobenate dimeglumine (MultiHance®) at 0.1 mmol/kg body weight (BW). Contrast to Noise Ratio (CNR), a well-known quantitative parameter directly related to contrast medium/GBCA efficacy, was chosen as the primary endpoint in order to have a precise determination of P03277 clinical dose. This was a multi-center, international, prospective, double-blind, randomized, controlled, parallel dose groups, cross-over with comparator study in male and female subjects presenting with known or highly suspected focal areas of disruption of the Blood Brain Barrier including at least one expected enhancing lesion of minimum 5 mm, who were scheduled to undergo a routine contrast-enhanced Magnetic Resonance Imaging (MRI) of Central Nervous System.
The results of this imaging and treatment planning protocol will aid in developing procedures for patient localization and future clinical implementation of low-field MRI to confirm positioning prior to radiation treatment. Images acquired during this study may aid future study design for adaptive planning based on low-field MRI images. Moreover, results of this imaging and treatment planning may lead to guidance on optimal use of this novel device.
The purpose of this study is to evaluate our recently developed MRI reconstruction strategy for producing artifact-free neuro and abdominal MRI data. The new reconstruction strategies, including 1) REKAM and 2) MUSE, are capable of effectively removing motion-related artifacts resulting from global and local motion during neuro and free-breathing abdominal MRI scans, without modifying the MRI pulse sequences and protocols that are currently used in clinical scans. The study team aims to recruit 60 subjects across multiple challenge patient populations: 10 healthy young adults (age 20-30) and 10 healthy older adults (aged 50-70) for abdominal MRI, as well as 20 tremor dominant PD patients and 20 children (age 4-8) for brain MRI scans. There are no known risks in taking MRIs and a unique code will be assigned to each participant to protect their PHI.
The purpose of the study is to use a new research imaging technique, a kind of magnetic resonance imaging (MRI), to measure important metabolic features of muscle, including mitochondrial function, in people with mitochondrial disease and in healthy individuals. (Mitochondria are tiny organelles that generate energy for the body.) It is hoped that this new strategy will help physicians to understand better the health problems of people with mitochondrial disease. Eventually, this could lead to better diagnostic and treatment approaches.
The objective of this study is to evaluate the usefulness of Tc-99m Sestamibi Molecular Breast Imaging as an imaging modality for breast cancer screening. Tc-MBI has shown significantly higher sensitivity and equivalent specificity in the detection of breast cancer among high risk women when compared to mammography. However, there is little published data comparing Tc-MBI to MRI for evaluating extent of disease in women with known breast cancer. The study will target twenty (20) women with newly diagnosed breast cancer who are scheduled to undergo biopsy of additional suspicious lesions that were identified on standard of care contrast- enhanced breast MRI. Prior to the biopsy, these subjects will receive a Tc-MBI scan of the breast. The results from both imaging methods will be compared to histological findings. These results may be used to design larger and more comprehensive studies with an overarching goal to determine if there is a role for Tc-MBI in the pre-operative evaluation of patients with known breast cancer.
This study is a research initiative established to explore the use of magnetic resonance imaging (MRI) as a tool for detecting organ motion as it pertains to planning radiation therapy.
This is a pilot study to identify the degree of grey and white matter involvement in patients with Amyotrophic Lateral Sclerosis (ALS) utilizing non-invasive techniques. The imaging to be utilized will be the 7 Tesla (7T) magnetic resonance imaging (MRI) of the brain. These results will be correlated to the ALS Functional Rating Scale - Revised (ALSFRS-R) score to assess if any changes in MRI can be predictive in the disability of the ALS patients at baseline and at 6 month intervals. The participants will be asked to return every 6 months for a neurological examination, ALSFRS-R assessment, measurement of the vital capacity and MRI as outlined above to monitor progression of the disease.
In standard prostate brachytherapy treatment, the seeds are placed throughout the prostate to treat the entire gland. This is done because, in the past, it was impossible to know where the cancer was located within the prostate. Multiparametric magnetic resonance imaging (MRI) can identify tumor(s) with a high degree of accuracy. This trial will assess whether using MRI to guide prostate brachytherapy can result in less chronic toxicity by allowing lower doses to be delivered to the regions of the prostate without tumor while simultaneously allowing higher doses to the tumor. Subjects enrolled in this study will then be followed over two years and evaluated for toxicity. In addition, after two years they will undergo an MRI and a biopsy to assess the cancer control rate of the treatment.
This study is designed to determine if magnetic resonance imaging (MRI) measures can be used to diagnose and monitor the progression of Parkinson's disease (PD) while distinguishing between PD and parkinsonisms \[conditions that are PD look-a-like diseases such as progressive supranuclear palsy (PSP) or multiple system atrophy (MSA)\] when combined with changes in certain proteins in body fluids that are related to iron (Fe).