Clinical Trials About "siemens"

Validation of the Siemens System Somatom Definition and Operating Software for Cardiac CT Studies

We are evaluating a new computer software package to help us acquire and interpret heart CT studies, which is the purpose of this research project. We plan to compare the acquiring and analysis of heart artery calcium scores and CT angiograms (scans of the heart arteries) with the new SYNGO Somaris/7 Cardiac software to our previous experience with the the existing Siemens software and the TeraRecon software (current software used in the Cardiovascular MR/CT lab). The main obje...

Measurement of Cerebral Oxygen Extraction Fraction Using MRI Technique

All images in this study were acquired on a 1.5 T Sonata whole body scanner (Siemens Medical Inc., Erlangen, Germany) using 2D multi-echo gradient echo/spin echo sequence and 2D single-shot gradient echo-planar imaging sequence plus intravenous magnetic susceptibility contrast medium. The quantitative estimates and mapping of cerebral metabolic rate of oxygen utilization were calculated and plotted in all subjects.

Serial BNP Testing for Heart Failure Management

The scope of the USE-BNP Trial is to investigate whether knowledge of BNP measurements, in conjunction with clinical assessment, in the outpatient setting can guide the management of therapy in patients with heart failure.

Siemens 3-D C-Arm CT of the Heart Chambers

The purpose of this study is to determine the optimal images of the heart structures which are used to guide AF ablation or BiVenticle and coronary vessels.

Development Of New Techniques For Functional Magnetic Resonance Imaging Of The Brain

This Protocol is intended to facilitate development and testing of new techniques for functional MRI by UC Davis Research Faculty, as well as to facilitate the evaluation of new techniques provided by the system manufacturers (GE and Siemens).

Development of New Software Capabilities for Use With Cardiovascular Magnetic Resonance Imaging

This Protocol is intended to facilitate development and testing of new cardiovascular MRI software capabilities by UC Davis Research Faculty, as well as to facilitate the evaluation of new software capabilities provided by GE and Siemens.

Radiation Dose From Computed Tomography Before and After Implementation of a High Pitch Dual Spiral Technique

The purpose of this study is to compare the radiation exposure of a variety of chest CT examinations performed on the current state of the art CT scanners (64 slice, dual source CT scanner) with the radiation exposure for identical chest CT examinations performed on the Siemens Flash CT scanner (high pitch dual source spiral technique).