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PET/CT fusion viewing software for use with picture archiving and communication systems
Ki Chun Im1, Ik Soo Choi, Jin-Sook Ryu
1Department of Nuclear Medicine, University of Ulsan College of Medicine, ASAN Medical Center, Seoul, Republic of Korea. ikc@amc.seoul.kr
Journal of Digital Imaging
|August 7, 2009
Summary
We developed PETviewer software for viewing co-registered PET/CT images on PACS. This tool enables accurate SUV measurements and enhances clinical assessment of PET/CT scans.
Area of Science:
- Medical Imaging
- Radiology
- Software Development
Background:
- Positron Emission Tomography/Computed Tomography (PET/CT) is crucial for diagnosis and monitoring.
- Integrating PET/CT data with Picture Archiving and Communication Systems (PACS) is essential for efficient workflow.
- Viewing co-registered PET and CT images requires specialized software for accurate analysis.
Purpose of the Study:
- To develop and evaluate PETviewer, a software for displaying co-registered PET/CT images on PACS.
- To provide tools for image manipulation, region of interest (ROI) definition, and Standardized Uptake Value (SUV) measurement.
- To assess the accuracy of image fusion and the software's utility in clinical settings.
Main Methods:
- Developed PETviewer software with functionalities for PET/CT image display, windowing, zoom, pan, pseudo-color, and ROI definition.
- Integrated PETviewer with PACS for accessing co-registered PET/CT datasets and Maximum Intensity Projection (MIP) images.
- Conducted phantom experiments to validate image fusion accuracy and assessed display performance on a standard PC.
Main Results:
- PETviewer successfully displayed co-registered PET and CT images, including reformatted sagittal and coronal views, with adjustable fusion parameters.
- The software accurately calculated SUV within defined ROIs using PET DICOM header information and pixel intensity.
- Phantom and patient image fusion demonstrated excellent registration in transaxial, sagittal, and coronal planes, with display times under 20 seconds.
Conclusions:
- PETviewer offers valuable clinical tools for assessing PET/CT images within PACS environments.
- The software facilitates accurate SUV measurements and enhances the interpretation of fused PET/CT data.
- PETviewer has the potential to maximize the clinical benefits derived from PET/CT imaging.
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