View clinical trials related to Computed Tomography.
Filter by:The European Resuscitation Council (ERC) and the European Society of Intensive Care Medicine (ESICM) joint guidelines for post-resuscitation care recommend a multimodal approach to prognostication of neurological outcome. However, head computed tomography (CT) which is commonly used for predicting long-term neurological outcome after cardiac arrest has not yet been examined prospectively in a clinical trial. The primary purpose of the TTM-2 CT-substudy is to prospectively investigate and compare various methods of diagnosing generalized oedema on CT after cardiac arrest and it´s ability to predict long-term neurological outcome.
This study investigates if a new medical device, which injects contrast media and flushing solution into humans to increase the visibility of images taken of the human body for diagnostic purposes, is easier to handle, quicker and cheaper than an older injector.
Computed tomography represents the mainstay for diagnosing various diseases in the whole body. Over the past decade, enormous efforts were undertaken by both CT manufacturers and radiologist to reduce the radiation dose to patients. Today, the dose is significantly lower that it was before the era of multislice CT and iterative reconstruction methods. The X-ray beam originating from the tube in a CT system contains a spectrum of different energies, whereby the "harder" beams with higher energy penetrate the patient better, and the "softer" beams will be absorbed through the patient's tissues. Recent research has been shown that the radiation dose can be further reduced by improved primary beam filtering in CT. This study is intended to compare the radiation dose in clinically indicated, routine CT examination while maintaining a diagnostic image quality, on a new CT system with modified primary beam filtering.
An external evaluation to obtain clinical data to create sample clinical images. The data will also be used for product and technology development, marketing materials, and inclusion in publications.
The primary hypothesis of this study is that breast displacement out of the direct plane of imaging during computed tomography (CT) of the abdomen will reduce effective radiation dose to the female breast. Secondary hypotheses are that image noise and artifacts will also be decreased.
Retrospective comparison of complex cystic renal lesions which are found with computed tomography (CT) and were controlled with contrast enhanced ultrasound (CEUS).
This is a research study involving the use of a contrast agent called Ultravist Injection. Ultravist, the study drug, is used to improve the pictures obtained using computed tomography (CT). Ultravist acts like a dye to make CT pictures brighter and easier to read. In the case of this study, it will be injected into a vein in the patient's arm; from there, it travels through the blood stream and to the areas to be examined. CT scans will then be taken of the patient's head and/or body as ordered by his/her physician. Phase IIIb Study to Document the Safety and Efficacy of Ultravist 370 mg I/ml, When Administered Intravenously, in Volumes up to 162.2 ml, for Clinically Indicated Contrast Enhanced Computed Tomography (CECT) of the Head and/or Body