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Diagnostic Imaging and IVR Lab
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The lab uses diagnostic imaging and interventional radiology (IVR) to see inside the body and link that to treatment.

AboutAbout the lab
Seeing what cannot be seen.
The Diagnostic Imaging and IVR Lab studies diagnostic imaging such as CT, MRI, and nuclear medicine, as well as interventional radiology (IVR), which also leads to treatment.
The lab's website describes it as the core of diagnostic imaging and IVR in Ibaraki Prefecture, responsible for clinical care, research, and education.
Its research includes AI-based image analysis, photoimmunotherapy for cancer, and clinical trials of embolization for liver cancer.
On the lab's website, it is introduced under the name "Department of Diagnostic Radiology and IVR, University of Tsukuba Hospital."
Key terms
- IVR
- A field that uses diagnostic imaging techniques directly for treatment. Treatment performed from inside blood vessels is one example.
- Photoimmunotherapy
- A treatment that combines an antibody with near-infrared light to act on lesions such as cancer.
- Embolization
- A treatment in which a catheter is used to place material in the blood vessels feeding a tumor, stopping blood flow to the lesion.
NewsLab news
Lecturer Sodai Hoshiai received the Fighting Spirit Award at a session of the Annual Meeting of the Japanese Society for Abdominal Emergency Medicine
Lecturer Sodai Hoshiai was selected as an Outstanding Respondent at the Röntgen Conference of the Annual Meeting of the Japanese Society of Imaging Medicine
Lecturer Sodai Hoshiai received the Peer Review Excellence Award 2025 (Abdominal Radiology)
Professor Takahito Nakajima received an award in the trial review of the safety category of GENIAC-PRIZE
Project Lecturer Taishi Amano received an Outstanding Presentation Award
ResearchResearch themes
The lab studies diagnostic imaging, which examines the inside of the body through images, and interventional radiology (IVR), which applies imaging techniques to treatment. Its work includes AI-based image analysis, photoimmunotherapy for cancer, and clinical trials of embolization for liver cancer.
*Illustrative imagePhotoimmunotherapy for Cancer
This research applies photoimmunotherapy to cancer treatment. Using large animal models and light irradiation from inside blood vessels, the lab is working to build a system that treats tumors located deep in the body.
*Illustrative imageBalloon-Occluded Embolization for Liver Cancer
For hepatocellular carcinoma and hypervascular liver metastases, the lab is evaluating, in prospective clinical trials, an embolization technique in which crushed gelatin particles are injected while a balloon blocks the blood vessel.
*Illustrative imageMRI Diagnosis and AI for Gynecologic Tumors
The lab examines the characteristics of MRI images of ovarian cancer, endometrial cancer, and other tumors, and is investigating differential diagnosis with diffusion-weighted imaging and the use of AI.
MembersFaculty
- ProfessorTakahito Nakajima
- Associate ProfessorTsukasa Saida
- Project Associate ProfessorTadashi Hara
- LecturerSodai Hoshiai
- LecturerMasashi Sakai
- Project LecturerTaishi Amano
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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. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Radiology Picture” James Moore200 / CC BY-SA 4.0 (cropped)
- Photoimmunotherapy for Cancer: “Fiber optic illuminated” Hustvedt / CC BY-SA 3.0 (cropped)
- Balloon-Occluded Embolization for Liver Cancer: “Interventional radiology A” Navy Medicine / Public domain (cropped)
- MRI Diagnosis and AI for Gynecologic Tumors: “Pelvic MRI 06 07” Nevit Dilmen (talk) / CC BY-SA 3.0 (cropped)
- Related lab (Gastroenterology Lab): “Equipment - Endoscopy -- Smart-Servier” Laboratoires Servier / CC BY-SA 3.0 (cropped)
- Related lab (Hospital Clinical Research Group (Pathology Division) Lab): “Tissue processing - Microtome is used to cut a ribbon of 5-micron-thick sections from the paraffin block” Ed Uthman / CC BY-SA 2.0 (cropped)
- Related lab (Thoracic Surgery Lab): “MEDREACH 11 Cataract Surgery - Kamuzu Central Hospital” U.S. Army Southern European Task Force, Africa / CC BY 2.0 (cropped)
- Related lab (Neurology Lab): “Automated confocal image reader” Neil Emans IPK / CC BY-SA 3.0 (cropped)
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