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The system is intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission projection data from the same axial plane taken at different ans the capability to image whole organs in a single rotation. Whole organs include but are not limited to brain, heart, liver, kidney, pancreas, etc. The system may acquire data using Axial, Cine, Helical, Cardiac, and Gated CT scan techniques from patients of all ages. These images may be obtained either with or without contrast. This device may include signal analysis and display equipment supports, components and accessories. This device may include data and image processing to produce images in a variety of trans-axial and reformatted planes. Further, the images can be post processed to produce additional imaging planes or analysis results The system is indicated for head, whole body, cardiac, and vascular X-ray Computed Tomography applications. The device output is a valuable medical tool for the diagnosis of disease, trauma, or abnormality and for planning, guiding, and monitoring therapy. If the spectral imaging option is included on the system can acquire CT images using different kV levels of the same anatomical region of a patient in a single rotation from a single source. The differences in the energy dependence of the attenuation coefficient of the different materials provide information of body materials. This approach enables images to be generated at energies selected from the visualize and analyze information about anatomical and pathological structures. GSI provides information of the chemical composition of renal calculation and graphical display of the spectrum of effective atomic number. GSI Kidney stone characterization orovides addin the characterization of uric acid versus nonuric acid stones. It is intended to be used as an adjunct to current standard methods for evaluating stone etiology and composition.

The Revolution CT is a multi-slice (256 detector row) CT scanner consisting of a gantry, patient table, scanner desktop (operator console), system cabinet, power distribution unit (PDU), and interconnecting cables. The system includes image acquisition hardware, image acquisition and reconstruction software, and associated accessories. GE has modified the cleared Revolution CT (K133705) within our design controls to include the Gemstone™ Spectral Imaging (GSI) Option. GSI is the state-of-the-art single source, projection-based, spectral CT application. It is GE's unique dual energy design and implementation which offers clear advantage over traditional dual source Dual Energy implementation. This feature has been previously cleared on Discovery CT750 HD (K081105, K120833) and it is fundamentally the same technology on Revolution CT. Revolution CT however offers a few technology improvements to enable Volume GSI with up to 80mm GSI zcollimation, 245mm/s GSI volumetric scan speed, dose neutrality and more improved workflow to support GSI in routine scanning.

The GE Discovery MI is a PET/CT system for producing attenuation corrected PET images. It is intended to be used by qualified health care professionals for imaging the distribution and localization of any positron-emitting radiopharmaceutical in a patient, for the assessment of metabolic (molecular) and physiologic function in patients, with a wide range of sizes and extent of disease, of all ages. Discovery MI is intended to image the whole body, head, heart, brain, lung, breast, bone, the gastrointestinal and lymphatic systems, and other organs. The images produced by the system may be used by physicians to aid in radiotherapy treatment planning, therapy guidance and monitoring, and in interventional radiology procedures. The images may also be used for precise functional and anatomical mapping (localization, registration, and fusion). When used with radiopharmaceuticals approved by the regulatory in the country of use, the raw and image data is an aid in; detection, localization, evaluation, diagnosis, staging, monitoring, and/or follow up, of abnormalities, lesions, tumors, inflammation, infection, organ function, disorders, and/or disease, such as, but not limited to, those in oncology, cardiology, and neurology. Examples of which are: Cardiology: - Cardiovascular disease - Myocardial perfusion - Myocardial viability - Cardiac inflammation - Coronary artery disease Neurology: - Epilepsy - Dementia, such as Alzheimer's disease, Lewy body dementia, Parkinson's disease with dementia, and frontotemporal dementia. - Movement disorders, such as Parkinson's and Huntington's disease - Tumors - Inflammation - Cerebrovascular disease such as acute stroke, chronic and acute ischemia - Traumatic Brain Injury (TBI) Oncology/Cancer: - Non-Small Cell Lung Cancer - Small Cell Lung Cancer - Breast Cancer - Prostate Cancer - Hodgkin disease - Non-Hodgkin lymphoma - Colorectal Cancer - Melanoma Discovery MI is also intended for stand-alone, diagnostic CT imaging in accordance with the stand-alone CT system's cleared indications for use.

The Discovery MI system is a PET/CT diagnostic imaging system combining a GE Positron Emission Tomography (PET) System and a GE Computed Tomography (CT) System. The PET portion of the system uses a Lutetium-based Scintillator (LBS) detector. Scintillator crystal arrays are attached to Silicon Photo Multipliers (SiPM) to form detector units. The detector units are inherited from the reference device Signa PET/MR. Detector units are attached on a common support to form detector modules. The detector modules are arranged in a ring around the patient positioned inside of the PET gantry for detection of gamma rays generated as a result of PET radiopharmaceuticals injected into the patient. The PET/CT system uses the full-featured multi-slice diagnostic CT subsystem with PET/CT post processing software to generate a map of the non-uniform attenuation in the patient. This attenuation map is then used for attenuation correction of the PET data. The CT image is also used for localization of the PET image in the patient anatomy by means of fusing the PET and CT images. The Discovery MI system's major components are the PET gantry/detector, Revolution EVO CT system, patient table, operator console/workspace, computing hardware, power distribution unit, system software, and reconstruction software. The operator console and software provide control of the imaging (i.e. setting and confirming conditions of operation), image acquisition, dose display, reconstruction, viewing, post processing analysis, patient management, networking, and filmina. The system may include respiratory and cardiac gating capabilities, signal analysis and display equipment, patient and equipment supports, components and accessories. In addition to being installed as a complete PET/CT system, the Discovery MI may result from an upgrade to a Revolution EVO- based Discovery PET/CT 710. The Discovery MI system provides scalable axial coverage for the PET detector. All configurations offer reference adult and pediatric protocols for both hybrid PET/CT and CT applications. The PET 3D data acquisition modes include Static, Gated, Dynamic, and Whole Body scanning. All of which can be acquired with List mode data. The system includes standard PET iterative reconstruction alqorithms. Q.Clear full-convergence, reqularized reconstruction is optionally available. Time of Flight (ToF) may be used for all PET reconstruction types. The CT system is the commercially available 64-detector row Revolution Evo, which may also be used for stand-alone, diagnostic CT imaging. The CT system's acquisition modes include Axial, Cine, Helical (Volumetric), Cardiac, and Gated, for head, whole body, trauma, cardiac and vascular applications.