WG-28 Goals Modalities and Types of Procedure Patient Radiation Dose SR (P-RDSR) Goals Store the results of Patient Organ Dose calculations Of a SINGLE procedure (a limited period in time) including one or more modalities and procedure steps/phases Of one or more organs By one or more calculation methods With the goals of: Store final results in the patient records Exchanging intermediate results with peers Modalities and Types of Procedure Single modality, single procedure step (studies with only a single phase) CT, XA, XRF, Mammo, CR, DX, NM, PET Multi-modality, single procedure step (multi-phase concept) SPECT and PET/CT – internal organ dose (Stochastic) Single modality, multi-procedure step (multi-phase concept)

Procedure Examples Patient Radiation Dose SR (P-RDSR) Single modality, single procedure step (studies with only a single phase) CT internal organ dose (Stochastic) eye dose (Deterministic) XA/RF (one time point) skin dose map (Deterministic) Mammography – glandular dose (Stochastic) Projection x-ray (CR/DX) entrance skin dose (Deterministic) NM/PET – internal organ dose (Stochastic) Multi-modality, single procedure step (multi-phase concept) SPECT and PET/CT – internal organ dose (Stochastic) Single modality, multi-procedure step (multi-phase concept) CT – multi-phasic study XA/RF (multi time points being combined) XA localization/disgnostic plus intervention Mammography/Projection X-ray – Tomosynthesis

Patient Radiation Dose SR (P-RDSR) Data flow – simple case Calculation Method 1 Radiation Dose SR 1 Patient Dose SR 1 Organ 1

Patient Radiation Dose SR (P-RDSR) One RDSR, multiple organs Calculation Method 1 Radiation Dose SR 1 Patient Dose SR 1 Organ 1 Organ 2 Organ 3

Patient Radiation Dose SR (P-RDSR) Multiple RDSRs, multiple organs Calculation Method 1 Radiation Dose SR 1 Patient Dose SR 1 Organ 1 Radiation Dose SR 2 Organ 2 Organ 3

Patient Radiation Dose SR (P-RDSR) Multiple RDSRs, multiple organs, multiple methods Calculation Method 1 Radiation Dose SR 1 Patient Dose SR 1 Organ 1 Calculation Method 2 Radiation Dose SR 2 Organ 2 Organ 3

Patient Radiation Dose SR (P-RDSR) Detailed data flow Patient Dose Surface 3D map/view Patient Surface FOR Radiation Dose SR Radiation Exposure Information - X-Ray exposure techniques - Table, Gantry Angle, Beam Geometry, collimation - Dose measure: CTDI, DAP, ... X-Ray Equipment Modality Frame of Reference (FOR) Modality Image IOD Organ Dose Calculation System Beam Modifiers (Equipment Information) - Table dimension - Absorption material, … Patient Registration Information Actual scan range Patient position on table Fiducials? Patient/Model to Equipment Registration Patient Dose 2D view/map (e.g. iso-dose map) Patient Dose SR Calculated Patient Dose Read old P-RDSR into new calculation Patient Model Patient Model FOR

Patient Radiation Dose SR (P-RDSR): Templates TID prdsrT01 Patient – Radiation Dose 1 TID 1002 Observer Context CONTAINS: Group Category: Single phase or Multi-phases combined Partial or Total organ analysis Group Description: Phase number (if multi-phase) Single organ (e.g. skin, fetus) What organs are included Modalities:  CT  XA/RF DX/MG NM 1 TID ptdsrT02 Procedure Dose 1-N 1-N Dose Estimate Group 1-N Radiation Output From System (reference to RDSR) Organ Dose 1-N Ref. RDSR 1 TID prdsrT04 Dose Estimate Methodology 1 Patient Model Ref. 1 3D Model 1 Registration to the output values Ref. 1 TID prdsrT03 Dose Estimate Representation 1 1 Beam Modifiers 1-N Representation Model Registration 1-N Dose Estimation Method 1 Ref. 2D / 3D Images