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Related Experiment Video

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Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
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Image guidance protocols: balancing imaging parameters against scan time.

A M Bates1, J E Scaife, G S J Tudor

  • 1Cancer Research UK VoxTox Research Group, Department of Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.

The British Journal of Radiology
|October 17, 2013
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Summary
This summary is machine-generated.

Optimizing TomoTherapy imaging protocols for research, like the VoxTox study, shows minimal impact on daily clinical workflow. Daily online imaging time is predictable, with scan acquisition and image matching times clearly quantified.

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Area of Science:

  • Radiotherapy
  • Medical Imaging
  • Radiation Oncology

Background:

  • Optimizing imaging protocols is crucial for maximizing the utility of image-guided radiotherapy.
  • Daily online imaging on TomoTherapy involves mechanical scan acquisition and radiographer-led image matching.

Purpose of the Study:

  • To evaluate the time required for daily online imaging on TomoTherapy, separating scan acquisition from image matching.
  • To estimate the time demands for a clinical research study (VoxTox) using this imaging approach.

Main Methods:

  • Analysis of 18,533 treatments across prostate, head and neck, and central nervous system tumor sites over 5 years.
  • Data collected included scan length, CT slice details, acquisition time, and image matching time.

Main Results:

  • Scan acquisition time correlates strongly with scan length, with coarse scans becoming the default.
  • Each additional centimeter in coarse scans requires 8s for acquisition and 20s total including image matching.
  • Protocol modifications had minimal impact on daily workflow efficiency.

Conclusions:

  • This study quantifies the impact of research-related protocol changes on clinical imaging time.
  • The findings suggest that research imaging on TomoTherapy has a minimal effect on clinical turnover, applicable to other platforms.