AGFA HEALTHCARE DICOM Conformance Statement

HE/001132 Page 19 of 94Document No.001132, Revision 5.0NodeID LiveLink : 22455734Agfa HealthCare 27 March, 20082.2.1.3.1.3.1.6 Grayscale Softcopy Presentation State Storage SOP Class(1.2.840.10008.5.1.4.1.1.11.1)The Grayscale Softcopy Presentation State Storage SOP Class extends the functionality of the StorageService class to add the ability to convey an intended presentation state or record an existing presentationstate.It includes capabilities for specifying:• the output grayscale space in P-Values• grayscale contrast transformations including modality and VOI LUT• selection of the area of the image to display• image and display relative annotations, including graphics, text and overlaysNote:A GSPS always refers to exactly one (1) image. Since re-sending an image is prohibited in"Workstation", an archived image can also have maximally one (1) GSPS that refers to it.Depending on the configured SOP class to be used (CR (§ 2.2.1.3.1.3.1), DX for presentation (§2.2.1..3.2) orMG for presentation (§ 2.2.1.3.1.3.4) annotations and shutters are stored in the GSPS or burned in theimage as described in the following table:Table 2.2-9: Use of GSPS vs. Burning in the imageImage(processing,W/L,collimation)AnnotationsShuttersZoomMarkersCRDX for presentationMG for presentationProcessed pixels+LUTsGSPS or Burned inGSPS orwhen GSPS is not used:In case of CR the shutter isburned into the Pixel data.In case of DX and MG theshutter is described in theshutter module of the imageheader.GSPS or discardedAlways burned inRAW pixelsIgnoredDX for processingThe following paragraphs describe into detail how each annotation is embedded in the GSPS:2.2.1.3.1.3.1.6.1 Text