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IHE-RO Future Profiles

This document outlines proposed use cases for advanced radiation therapy enhancements by Bruce Curran, Assistant Professor at the University of Michigan. Key areas include compositing dose for accurate treatment delivery, optimizing residual dose through advanced dosimetric planning, and image fusion technologies to ensure precise treatment verification. The proposed methods also cover online and offline image reviews, effective treatment scheduling, and the integration of additional treatment modalities into the existing RT workflow. The goal is to improve patient outcomes through innovative methodologies in radiation therapy.

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IHE-RO Future Profiles

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  1. IHE-ROFuture Profiles Bruce Curran Assistant Professor / University of Michigan

  2. Proposed Use Cases2007 … • Compositing Dose • Residual Dose Optimization • Image Fusion (Selected for 2008) • On-line Image Review (reference image vs. delivery image) • Off-line Image Review (reference image vs. delivery image) • Scheduling Treatment Delivery and Verify/Record (Selected for 2008) • Query/Retrieve • Clinical Trials • Augmentation of RT Objects Profile to encompass additional treatment modalities

  3. Compositing Dose • Summing multiple dose distributions defined in a common frame of reference (derived from same image series); optionally stores summed dose in archive.

  4. Residual Dose Optimization • (“Dosimetric planner with prior dose”) – retrieves (planned or delivered?) dose distribution, CT image, RTSS, and Prescription (out of band).

  5. On-line Image Review • 2D-2D – retrieve patient setup DRRs, RT Plan from archive; acquire setup image(s); compare and display correction transformation • 3D-2D – retrieve planning CT, RTSS, RT Plan (and RT Dose) from archive; acquire verification CT; compare and display correction transformation • 3D-3D – retrieve planning CT, RTSS, RT Plan (and RT Dose) from archive; acquire verification CT; compare and display correction transformation

  6. Off-line Image Review • 2D-2D – [Delivery Imaging System] acquire and store setup images and Spatial Registration in archive; [Offline Review System] retrieve patient setup DRRs, setup images, Spatial Registration, RT Plan from archive; compare, display, and store correction transformation in archive • 3D-2D – [Delivery Imaging System] acquire and store verification CT and Spatial Registration in archive; [Offline Review System] retrieve planning CT, verification CT(s), Spatial Registration, RTSS, RT Plan, (and RT Dose) from archive; compare, display, and store correction transformation in archive • 3D-3D – [Delivery Imaging System] acquire and store verification CT and Spatial Registration in archive; [Offline Review System] retrieve planning CT, verification CT(s), Spatial Registration, RTSS, RT Plan, (and RT Dose) from archive; compare, display, and store correction transformation in archive

  7. Query/Retrieve • Series level Q/R from archive • Generally supported by PACS systems • For PACS users, there is often an HTTP interface. For RT CT systems, generally it is a problem needing to be solved. • Users would like to be able to get CT and RT objects from one source. • RT (Instance-level) objects from archive • Often not supported by institution-wide PACS systems

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