نتایج جستجو برای: 64 slices ct scanner
تعداد نتایج: 254628 فیلتر نتایج به سال:
n the late 1970s when I was a radiology resident, there was an ultrasound machine in the emergency radiology suite but no computed tomographic (CT) scanner. There was only 1 CT scanner in our hospital (Massachusetts General Hospital, 1977–1980), and all of the CT scans ordered by the emergency room were for head trauma. Nowadays, not only is there a CT scanner in the emergency room, but it is w...
Multislice CT scanners are the newest class of CT scanners and they have not one but many detectors. These scanners can acquire up to 4 slices of data from the body in the same time it takes a single-slice CT scanner to acquire one. Multislice CT allows for rapid cardiac imaging during a single breath-hold. A multislice scanner operated in helical mode provides information that can be used to r...
OBJECTIVE To obtain anatomical data on intertubercular sulcus of humerus, evaluate the correlation between intertubercular sulcus and retroversion angle of humeral head, to guide the positioning of torsion angle of prosthesis during total shoulder arthroplasty and provide references for shoulder prosthesis design. METHODS Using a Siemens Ultrahigh speed 64- rows multi-slices spiral CT scanner...
PURPOSE Radiation exposure of the public as a result of medical imaging has significantly increased during the last decades. To have a tool to register and control patient dose exposure, we implemented dose monitoring software at our institution and first connected our computed tomography (CT) scanners. MATERIALS AND METHODS CT dose data from July 2014 to February 2015 was retrospectively ana...
This article is intended to provide an overview of various aspects of clinical PET/CT. These include discussions of: (i) Important areas of clinical application; (ii) Opportunities in clinical research; (iii) Scanner and operating-mode considerations (e.g. BGO vs. LSO, LYSO or GSO scanners, 2D vs. 3D imaging). (iv) Study-specific considerations (e.g. patient preparation and positioning is...
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This article reviews a number of portable CT scanners for clinical imaging. These include the CereTom, Tomoscan, xCAT ENT, and OTOscan. The Tomoscan scanner consists of a gantry with multisection detectors and a detachable table. It can perform a full-body scanning, or the gantry can be used without the table to scan the head. The xCAT ENT is a conebeam CT scanner that is intended for intraoper...
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