Related Experiment Video
Updated: Dec 18, 2025
08:57
High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
Published on: June 21, 2011
19.1K
EXIRAD-3D: Fast automated three-dimensional autoradiography
Minh Phuong Nguyen1, Ruud M Ramakers2, Chris Kamphuis3
1Section Biomedical Imaging, Delft University of Technology, Delft, the Netherlands.
Nuclear Medicine and Biology
|June 15, 2020
Summary
EXIRAD-3D provides fast, automated 3D autoradiography, overcoming the limitations of traditional methods and low-resolution microSPECT. This technique enables high-resolution imaging of radiolabeled molecules in biological tissues.
Area of Science:
- Molecular Imaging
- Biomedical Engineering
- Radiochemistry
Background:
- Traditional autoradiography is time-consuming and error-prone for 3D reconstruction.
- Existing microSPECT systems offer 3D imaging but lack sufficient resolution.
Purpose of the Study:
- To present EXIRAD-3D, a novel method for fast and automated 3D autoradiography.
- To provide an alternative to conventional autoradiography and low-resolution microSPECT.
Main Methods:
- EXIRAD-3D utilizes ultra-high resolution microSPECT technology with a small bore focusing multi-pinhole collimator.
- A stationary detector system with integrated tissue cooling was employed to prevent sample degradation.
Main Results:
- Achieved a spatial resolution of 120 μm with a Derenzo hot rod phantom.
- Demonstrated clear visualization of radiotracer uptake in small anatomical details of mouse tissues.
Conclusions:
- EXIRAD-3D enables fast, quantitative 3D imaging of radiolabeled molecules with superior resolution to in vivo microSPECT.
- This method significantly reduces labor compared to traditional 3D autoradiography, offering an efficient alternative for pharmaceutical and biological studies.
