<unk>  image or DVA (digital variance angiography) of a patient's leg, obtained from previously acquired fluoroscopic angiography data. Movement of a bolus of contrast agent allows visualization of the blood vessels.<unk>  is an<unk>  technology developed by Szabolcs Osváth and Krisztián Szigeti in the Department of Biophysics and Radiation Biology at Semmelweis University (Budapest, Hungary). The technology allows the visualization of motion; it is based on an altered data acquisition and image processing algorithm combined with<unk>  techniques that use penetrating radiation (e.g., X-rays).<unk>  has the potential for use in a wide variety of areas including medicine, engineering, and surveillance. For example, physiological movements, such as the circulation of blood or motion of organs can be visualized using<unk> . Because of the reduced noise and the motion-based image contrast,<unk>  can be used to reduce X-ray dose and/or amount of required contrast agent in medical<unk>  (e.g., X-ray angiography). In fact, clinical trials are underway in the fields of vascular surgery and interventional radiology. Non-medical applications include non-destructive testing of products and port security scanning for stowaway pests.<unk>  is a patented technology owned by<unk> t Ltd.
Kinetic imaging
Quantitative computed tomography
Functional imaging
Molecular imaging
Immunoscintigraphy
Gated SPECT
Current density imaging
Imaging biomarker