Time-gated imaging in planar and tomographic x-ray imaging

Autor:	K. Herrlin, M Gratz, L Kiernan
Rok vydání:	1999
Předmět:	Physics business.industry Radiography Detector X-ray detector X-ray Image processing General Medicine Optics Medical imaging Image sensor Computed radiography Nuclear medicine business
Zdroj:	Medical Physics. 26:438-446
ISSN:	0094-2405
Popis:	Time-gated imaging is a new technique for scatter suppression in radiological imaging, based on the use of ultrashort x-ray pulses in combination with a fast gatable detector. We demonstrate scatter suppression in both planar and computed tomography (CT) radiography in an experimental model using x rays from a laser-produced plasma. The scatter-suppression efficiency of time-gated imaging is found to be similar to existing standard techniques. Furthermore, it allows for a potential decrease in patient dose. Monte-Carlo simulations confirm these results. We present an overview including theoretical simulations, experimental studies and comparisons to established techniques. The current technical limitations are evaluated and possible future applications in volumetric CT imaging are discussed. (C) 1999 American Association of Physicists ill Medicine. [S0094-2405(99)00903-7]. (Less)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5e50a4a74855b293932e0012c89d777 https://doi.org/10.1118/1.598535 Zobrazit plný text záznamu Plný text