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Most radiation therapy is planned using the results of a 3D CT scan. A 3D scan largely presents a snapshot of the body at a particular point in time, however due to the time of the acquisition, in which the patient is likely to have moved in some way (even if only breathing), there will be an element of blurring or averaging in the 3D scan. [ 6 ]
In 2005 Fouras conceptualized 4D imaging using X-rays and in 2009, the first patent for XV Technology was filed. [ 1 ] [ 2 ] Fouras and his colleagues adapted wind-tunnel imaging techniques used by engineers to develop a new technique that combines fluoroscopy and advanced visualization to generate high-resolution images of the motion of, and ...
All these modes support 4D data and are able to produce image fusion between two different series (for example: PET-CT). OsiriX is simultaneously a DICOM PACS workstation for imaging and an image processing software package for research (radiology and nuclear imaging), functional imaging, 3D imaging, confocal microscopy and molecular imaging.
The first ultrasound images were static and two-dimensional (2D), but with modern ultrasonography, 3D reconstructions can be observed in real time, effectively becoming "4D". [citation needed] Because ultrasound imaging techniques do not employ ionizing radiation to generate images (unlike radiography, and CT scans), they are generally ...
Low-dose high-resolution (1.25 mm) chest CT. HRCT is performed using a conventional CT scanner. However, imaging parameters are chosen so as to maximize spatial resolution: [1] a narrow slice width is used (usually 1–2 mm), a high spatial resolution image reconstruction algorithm is used, field of view is minimized, so as to minimize the size of each pixel, and other scan factors (e.g. focal ...
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THz-CT Thermoacoustic imaging: Photoacoustic spectroscopy: TAT Ultrasound-modulated optical tomography: Ultrasound: UOT Ultrasound computer tomography: Ultrasound: USCT Ultrasound transmission tomography: Ultrasound: X-ray computed tomography: X-ray: CT, CAT scan 1971 X-ray microtomography [15] X-ray: microCT Zeeman-Doppler imaging: Zeeman effect
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