Radbook 2016

FIRST: A Model-Based Iterative Reconstruction (MBIR) auto- matically lowers patient exposure up to 80 % in clinical routine. The first thing to know about FIRST is how easy it is to use. For clinicians the system makes ultra-low-dose iterative reconstruction simple, an automated process that fits seamlessly into daily work- flow,Toshiba reports. “For radiologists who want to look under the hood and study the engine driving this technological break-through, fast will be the first word that comes to mind. Toshiba accelerated computational throughput to bring their true iterative reconstruction technique FIRST to the clinic for which extensive reconstruction times are not acceptable.” Available for the Aquilion ONE Family of CT systems, FIRST – Forward projection model-based Iterative Reconstruction SoluTion – visually improves high-contrast spatial resolution while Ultra-low dose delivers diagnostic quality making exams safer for patients by providing ultra-low dose exam- inations,Toshiba explains. Professor Alain Blum MD, from the University Hospital of Nancy, in France, scanned over 250 patients with the system in the first week after installation and was impressed by the speed and image quality. According to Blum it contributes to a significant improve- ment in image detail and it was possible to reduce dose to levels he never saw before. “With the new algorithm we can reduce the dose by a factor three compared to currently state of the art itera- tive reconstrutions, this is very impressive,”he said. “The new system is integrated in SURE Exposure, Toshiba’s AEC tool, to ensure automatic dose reduction of up to 80% in volume and helical scanning respecting the user-required clinical image quality. Using dedicated hardware the reconstruction of a complex volumet- RADBOOK 2016 14 ◼  COMPUTED TOMOGRAPHY

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