2. Flat Panel Detector

Hideyuki Takano
Division of Diagnostic Imaging, Chiba Cancer Center

Abstract
　　The Flat panel detector (FPD) or Flat detector (FD) is an advanced X-ray detector system, which can provide fast development of wide dynamic range X-ray images without distortion. FPD can show high spatial resolution and visibility of low contrast objects with less exposure. Two major types of FPD are direct conversion and indirect conversion. There is no clinical significance between them. Using FPD, the X-ray system is smaller and gives a wide working space which provides easy access to patients on a table. Digital radiography�GDR�His usually used for fluoro. DR with FPD can show excellent static images such as Computed Radiography (CR) FPD can also provide high quality digital images which can be used for 3D reconstructions such as Flat-detector Angiographic CT�GFACT�H. FACT delivers soft tissue images in the angio suite like the Angio-CT system. Fact provides fine and wide dynamic range data and small cubic voxels. These data enable us to visualize fine vasculature in 3D, not only by arterial injection but also by intravenous injection�GVolume IntraVenous Injection DSA�H. These innovations change the workflow of the radiology department.

Keywords : Flat panel detector, Flat-detector Angiographic CT, 3D-DSA