Found 63 clinical trials
High-resolution MRI (7 Tesla) of the Cervical Spine in Asymptomatic Individuals
High-resolution MRI (7 Tesla) of the cervical spine is capable to provide good differentiation between nerve and surrounding tissues within foramen und allows to reliably quantify the diameter of nerve roots/ganglia. Secondly, detailed anatomy of vertebral artery and its relation to neural structures / foramina can be assessed.
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- 05 Aug, 2020
RadioPathomics Artificial Intelligence Model to Predict Tumor Regression Grading in Locally Advanced Rectal Cancer
The radiopathomics AI system predicts individual tumor regression grading (TRG) category based on each patient's radiopathomics features extracted from the Magnetic Resonance Imaging (MRI) and biopsy images. The predictive power to classify each patient into particular TRG category will be validated in this multicenter, prospective clinical study.
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- 16 Feb, 2024
- 3 locations
RadioPathomics Artificial Intelligence Model to Predict nCRT Response in Locally Advanced Rectal Cancer
By the system, whether the participants achieve the pathologic complete response (pCR) will be identified based on the radiopathomics features extracted from the pre-nCRT Magnetic Resonance Imaging (MRI) and biopsy images. The predictive power to discriminate the pCR individuals from non-pCR patients, will be validated in this multicenter, prospective clinical …
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- 16 Feb, 2024
- 3 locations
Radiomics-based Artificial Intelligence System to Predict Neoadjuvant Treatment Response in Rectal Cancer
Previously, the radiomics prediction model has been constructed based on the radiomics features extracted from pretreatment Magnetic Resonance Imaging (MRI) in the training set, and optimized in the external validation set. The predictive power of this radiomics prediction model to discriminate the pathologic complete response (pCR) patients from non-pCR individuals, …
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- 16 Feb, 2024
- 3 locations
Post-Neoadjuvant Treatment MRI Based AI System to Predict pCR for Rectal Cancer
In this study, investigators seek for a better way to identify the potential pathologic complete response (pCR) patients form non-pCR patients with locally advanced rectal cancer (LARC), based on their post-neoadjuvant treatment Magnetic Resonance Imaging (MRI) data. Previously, a post neoadjuvant treatment MRI based radiomics AI model had been constructed …
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- 16 Feb, 2024
- 3 locations
4D-flow MRI to Assess Left Ventricular Obstruction in Hypertrophic Cardiomyopathy
To date, the only method allowing a reliable assessment of the extent of left ventricular obstruction is Doppler echocardiography. All patients with HCM should undergo cardiac magnetic resonance imaging (MRI) to confirm the diagnosis and for the detection of fibrosis, but conventional sequences cannot reliably assess the obstruction. 4D-flow MRI …
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- 05 Aug, 2020
B3 for NMD: Bench to Bedside and Back
Sample and data collection at the Neuromuscular Center, The Ottawa Hospital may include blood, DNA, saliva, cerebrospinal fluid, urine and stool samples, skin or muscle biopsy, and routine diagnostic imaging studies such as electrodiagnostic studies, ultrasound, and magnetic resonance imaging.
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- 16 Feb, 2024
- 1 location
Clinical Manifestations and Biomarkers in Amyotrophic Lateral Sclerosis Type 4 and Other Inherited Neurological Disorders of RNA Processing
At visits, participants will undergo some or all of the following: Medical history Physical exam Tests of muscle strength and volume and physical function Blood tests Pregnancy test (for some females) Skin biopsy of forearm Magnetic resonance imaging (MRI) Dual x-ray absorptiometry (DEXA). Some tests are optional. The MRI uses …
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- 16 Feb, 2024
- 1 location
Cardiac Output, Cerebral Perfusion and Cognition in Patients With Severe Aortic Valve Stenosis Undergoing Transcatheter Aortic Valve Implantation (CAPITA)
Study design: Prospective observational study, measuring cardiac output (echocardiography), cerebral blood flow (arterial spin labelling magnetic resonance imaging) and cognitive functioning (neuropsychological test battery) prior to TAVI (<24 hours to <one week) and at 3 months follow-up.
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- 11 Jan, 2023
- 1 location
New Time Clock for ST-elevation MI Based on Biochemical Myocardial Infarction Onset Time
To assess the association of conventional ischemic time and biochemical ischemic time with infarct size; using peak hsTnI, percent ejection fraction by Echocardiography and Cardiac Magnetic Resonance imaging (CMR) based infarct volume in grams. To assess the association of conventional ischemic time and biochemical ischemic time with in-hospital and 30-days …
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- 05 Aug, 2020