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Medical Image Analysis Lab
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A lab that makes nuclear medicine PET and SPECT images clearer and more accurate.
AboutAbout the lab
Making nuclear medicine images clearer and more accurate
The Medical Image Analysis Lab researches ways to improve the SPECT and PET images acquired in nuclear medicine examinations.
Nuclear medicine is a field that introduces a radioactive drug into the body, detects the radiation emitted from inside the body with a device, and examines the function of organs and tissues through images and numerical values.
Using image reconstruction and image processing techniques, as well as deep learning with AI, the lab works to improve both the clarity of images and the accuracy of numerical values.
Associate Professor Kei Wagatsuma, who is in charge, is a faculty member of the Faculty of Health Sciences.
Key terms
- Nuclear medicine
- A medical field that introduces a radioactive drug into the body and examines organ function from the radiation it emits
- SPECT
- An examination that captures, from around the body, the gamma rays emitted by a drug introduced into the body and turns them into cross-sectional images
- PET
- An examination that uses a drug emitting positrons and images how the drug accumulates inside the body
- Deep learning
- An AI technique that learns features from large amounts of data using neural networks stacked in many layers
ResearchResearch themes
Targeting SPECT and PET images from nuclear medicine examinations, the lab studies the creation of images useful for diagnosis and the analysis of numerical data. Through this research, the lab trains medical technologists and researchers skilled in nuclear medicine technology and in image processing and analysis.
*Illustrative imageImage quality and quantitative accuracy of PET and SPECT images
Making full use of image reconstruction, image processing, and AI-based deep learning, the lab creates images with better image quality and ease of diagnosis, and analyzes numerical data to improve quantitative accuracy.
*Illustrative imageDementia PET and semiconductor-detector PET/SPECT
In recent years, the lab has been working on standardizing amyloid PET and tau PET, which provide biomarkers of dementia, and on research toward the clinical use of PET and SPECT scanners with semiconductor detectors built with cutting-edge technology.
MembersFaculty
- Associate ProfessorKei Wagatsuma
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images.
- Top image: “Nuclear Medicine in Cuba ( )” IAEA Imagebank / CC BY 2.0 (cropped)
- Image quality and quantitative accuracy of PET and SPECT images: “BrainSPECT” KieranMaher at English Wikibooks / Public domain (cropped)
- Dementia PET and semiconductor-detector PET/SPECT: “CSIRO ScienceImage 9370 Amyloid beta plaque in the brain follows specific patterns as detected by CSIROs analysis technique from PiB PET scans here an AIBL volunteer is receiving a PiB PET scan” Nick Pitsas, CSIRO / CC BY 3.0 (cropped)
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