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We list hundreds of Clinical Trials about "Assessment of Novel MRI Quantification Free Breathing Technique in Evaluation of Liver Lesions" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.
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The primary objective of this study is to develop and validate simultaneous free-breathing 4D fat and water quantification and quantitative dynamic contrast enhanced perfusion in the liver. Secondary aims include developing and validating free breathing quantification of relaxation parameters T1 and T2, and developing and validating a minimal breath-hold (< 8 s) high quality diffusion exam using highly accelerated steady state diffusion imaging sequences. Investigators aim to s...
Iron excess is increasingly regarded as an important cofactor in the morbidity attributed to many disorders. Assessment of body iron stores by measurement of serum ferritin concentrations has poor specificity and the most reliable method is histological or biochemical assessment from a liver biopsy. Because liver biopsy is an invasive procedure, imaging methods have been developed to detect and quantify hepatic iron content. The aim of the study is to use a simplified magnetic ...
Fatty liver in the obese is a common finding; some cases develop steato-hepatosis which in the long-term can lead to liver cirrhosis. The effect of bariatric surgery on fat distribution in the liver has so far been studied with liver biopsies and single voxel MR techniques. With this trial investigators present a new, whole organ MR-quantification of liver fat and describe changes after bariatric surgery in visceral and subcutaneous fat.
The diagnosis and treatment of sleep disordered breathing have come to the forefront of clinical medicine following recognition of the high prevalence and associated morbidity of sleep apnea. The effects on quality of life as well as societal costs have been well documented. The NYU Sleep Research Laboratory has spent the last several years working on the problem of improving the diagnosis of mild sleep disordered breathing which manifests as the upper airway resistance syndr...
This is a pilot study to investigate the feasibility of a novel MRI technique to assess the severity of liver cirrhosis and predict complications based on functionality and perfusion measurements whilst maintaining image quality. The principal objective of this pilot study is to assess liver function and the future risk of complications in patients with cirrhosis, using novel techniques and measures based on free-breathing Dynamic Contrast Enhanced MRI. Specifically the...
Aims： 1. Conduct multi-center, prospective and open research on liver quality assessment and establish LSCM liver quality assessment system 2. Classification of liver quality grades by LSCM for different pathological conditions (steatosis, fibrosis, hepatocyte necrosis, etc.) 3. Compare the specificity and sensitivity of LSCM evaluation results with the results of liver donor quality evaluation and intraoperative pathological biopsy results. ...
This study is to prospectively investigate the cardiac dose-sparing effect and clinical benefit of deep inspiration breath-hold (DIBH) technique. Patients with left-sided breast cancer treated with breast conserving surgery followed by radiotherapy is enrolled. Radiotherapy is delivered with either free-breathing or deep inspiration breath-hold (DIBH) technique. The cardiac dose parameters and cardiac toxicity are prospective evaluated, and the dose-effect relationship is analy...
Worldwide, primary liver cancer is the 3rd most common cause of cancer-related death, accounting for 6% of cancer diagnoses. In the UK, the number of cases reported has more than trebled since the 1970's, with 5550 new cases in 2014 (CRUK statistics 2014). Liver transplant or surgery are the main forms of treatment offered but only less than 20% of patients can tolerate these treatments. There is a need for non-surgical therapies that would improve these patients' chances of su...
Evaluation of 4 MRI methods (PDFF 3, 6 and 11 gradient echoes and Spectroscopy) compared to the reference method (liver biopsy) in quantification of hepatic steatosis
The objective of this study is to validate a new technique for intraoperative quantification of the patello-femoral joint kinematics in patients undergoing total knee replacement, and for postoperative quantification of implanted knee and general lower limb activity, along with relevant muscle dynamics.
Patients cohort is composed of 50 consecutive patients both male and female with hepatic malignancies, refered to our nuclear medicine department in the process of radioembolization between January 2010- August 2015. 26 of the patients were examined with Tc99-MAA and SPECT-CT and 24 patients were examined with Tc99-MAA , SPECT-CT and PET-CT. Our study protocol was as follows: 1. Collection of anamnestic data 2. Calculation of liver tumor volume with quantification s...
The primary aim is to determine the accuracy of CAP in the quantification of liver steatosis using liver biopsies as reference. Secondarily, investigators will correlate transient elastography (TE) and CAP results, analyze possible associations between CAP/TE and post-liver transplant (LT) clinical outcomes, and evaluate the change in CAP after LT. The study aims to include as many donors as needed to achieve 100 transplanted liver allografts.
The purpose of this study is to find out whether a new device can help obtain more accurate CT and PET scans of the lungs and chest tumors and the liver and liver tumors to help in delivering radiation therapy. When we breathe, the amount of air in the lung changes. Lung tumors may also move during breathing. Liver tumors may also move with breathing; as the lungs inflate, the liver can be pushed down. A CT scan (a special type of X-ray) is routinely obtained as part of plannin...
This study will compare a new technique of free gingival graft to the original one, in order to evaluate the stability of the graft volume over one year and other variables. Twenty patients will receive the original technique of free gingival graft (controls) and twenty patients will receive the modified technique, in which the free gingival graft is submerged (tests), at the inferior incisors area.
The non-alcoholic fatty liver disease is increasing and associated with obesity, diabetes and hyperlipidemia in recent years. Aerobic exercise indeed reduces adipose, hepatic insulin resistance and hepatic fat. However, diaphragmatic breathing improves cardiopulmonary function, the oxygen content of the body and therefore reduces inflammation of cells. The aim of this study is to ameliorate hepatic inflammation by using diaphragmatic breathing exercises instead of aerobic exerc...
To evaluate, in patients with suspected NASH referred for liver biopsy, the diagnostic performance of CT1 at discriminating those with NAS≥4 & F≥2 from those without.
Tinnitus is a prevalent issue for veterans who are proportionally more hearing-impaired than the civilian population. This study will be conducted as three concurrent projects designed to develop an efficient clinical technique to quantify tinnitus perception: (1)Laboratory development of the automated technique for comprehensive tinnitus quantification;(2)Development of a technique to test for tinnitus "malingering"; and (3)Evaluation of the automated technique in the ...
This study will evaluate the effect of deep breathing manoeuvres on inter ventricular interdependency physiology. By providing further insight in this basic physiology we want to add more comprehensive data in favor or not of constrictive pericarditis diagnostic criteria currently used in cardiovascular magnetic resonance.
A minority of patients with colorectal liver metastases and hepatobiliary cancer (primary liver cancer) are candidates for surgery, but there are no curative treatment options for these patients. Their median survival time is 3 to 12 months. Stereotactic radiation (SRT) (highly conformal radiotherapy (CRT)) is a treatment option for these patients with unresectable liver cancer, now possible due to improvements in our ability to localize and immobilize liver tumors and an imp...
Evaluation of a new technique of liver retraction for the exposure of the His angle in gastric bypass Roux-en-Y surgery.
Most of the asthma patients prefer complementary and integrative applications as they continue to experience asthma symptoms despite pharmacological treatment. Pranayama, one of these treatments, is a breathing-based technique and is a part of yoga, an ancient Indian science. This study was carried out as randomized controlled single blind study in order to analyze the effect of pranayama breathing technique applied to individuals suffering from asthma on asthma control, pulmon...
The primary aim of this study is to evaluate if VTIQ in addition to BI-RADS® categorization can improve the diagnostic accuracy with respect to detection of malignancies, in particular for BI-RADS® categories 3 and 4a. The idea of the study is to restage all patients in categories 3 and 4a according to a predefined VTIQ cut-off value of 3.5 m/s (37 kPa).
The present study aimed to utilize these well-known neuroelectrophysiological techniques to investigate the relatively less studied Shaolin Dan Tian Breathing (DTB) technique.
Liver tumors are hard to treat with radiation because the liver moves every time you breathe. The purpose of this study is to test a new and possibly more accurate way of treating liver tumors. When a person is asleep under anesthesia, it is safe to stop breathing motion for a while. The liver will stop moving and radiation can be given to a liver tumor. The study is being done to see if radiation can be given to liver tumors safely and accurately in this way.
The Researchers are trying to assess the effectiveness of a new ultrasound technique for non-invasive evaluation of liver fibrosis.