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Dental Radiology Lab
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A lab that studies radiation therapy for oral cancer and diagnostic imaging with CT and MRI.

AboutAbout the lab
Research on function-preserving radiation therapy and diagnostic imaging
The Dental Radiology Lab studies radiation therapy for oral cancer and head and neck cancer, and diagnostic imaging using CT and MRI.
The oral cavity, and the tongue in particular, is involved in many functions such as mastication, swallowing, speech, and taste, so radiation therapy that can preserve function is often the first-choice treatment for cancer.
The lab is equipped with a linac, the only external beam radiotherapy unit at the Dental Hospital affiliated with the Faculty of Dentistry, and uses it to treat patients with oral cancer and head and neck cancer.
In diagnostic imaging, MRI and CT are used to comprehensively diagnose not only hard tissues such as teeth and jawbones but also soft tissues such as muscles, blood vessels, and mucosa.
Key terms
- Linac
- The name of an external beam radiotherapy unit. It is installed in this lab as the only external beam radiotherapy unit at the Dental Hospital affiliated with the Faculty of Dentistry
- Brachytherapy
- A treatment method that uses a very small radiation source to irradiate only the cancerous area directly. A remotely controlled device is used
- Radiobiology
- A field that investigates, at a basic level and through experiments such as those using cultured cells, the effects of radiation on oral tissues and cancer cells
ResearchResearch themes
The lab studies radiation therapy for oral cancer and head and neck cancer, and diagnostic imaging of the oral and maxillofacial region with CT and MRI, from both clinical and basic perspectives. Research topics include non-invasive MRI diagnosis without radiation exposure, brain mapping of oral function using fMRI, clinical studies of radiation therapy for oral cancer, and three-dimensional measurement of the maxillofacial region using CT.
*Illustrative imageRadiation therapy for oral cancer and head and neck cancer
The lab uses a linac, an external beam radiotherapy unit, to treat patients with oral cancer and head and neck cancer. It also performs treatment with a remotely controlled brachytherapy device that irradiates only the cancerous area directly, and actively conducts clinical research on this treatment.
*Illustrative imageDiagnostic imaging with CT and MRI
Diagnosis must cover not only hard tissues such as teeth and jawbones but also soft tissues such as muscles, blood vessels, and mucosa. The lab applies a 1.5-tesla superconducting MRI and a multidetector CT that can create three-dimensional images in real time to diagnosis and research.
*Illustrative imageEffects of radiation and image analysis
The lab conducts basic research that underpins diagnostics related to radiation injury and to equipment and devices, as well as research on computer-based image analysis. In the field of radiobiology, it investigates the effects of radiation on oral tissues and cancer cells at a basic level through experiments such as those using cultured cells.
MembersFaculty
The staff of the Dental Radiology Lab consists of a Professor, Project Professors, Lecturers, and Assistant Professors.As of 2026
- ProfessorSyumei Murakami
- Project ProfessorYAN FAN PEI
- LecturerHiroaki Shimamoto
- Assistant ProfessorMasashi Sasai
- Assistant ProfessorTomomi Tsujimoto
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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: “Next generation CyberKnife Machine in India” BLK Cyberkife Hospital, New Delhi, India / CC BY-SA 3.0 (cropped)
- Radiation therapy for oral cancer and head and neck cancer: “Linear Accelerator - Elekta Compact model” Narenfox / CC BY-SA 4.0 (cropped)
- Diagnostic imaging with CT and MRI: “CT scan segmentation of a right upper molar root analogue dental implant” Logicwhatelse / CC BY-SA 4.0 (cropped)
- Effects of radiation and image analysis: “Formación de dicéntricos” Laboratorio DB HGUGM / CC BY-SA 4.0 (cropped)
- Related lab (Oral and Maxillofacial Pathology Lab): “Stained microscope slide” Waughd / CC BY-SA 4.0 (cropped)
- Related lab (Special Needs Dentistry Lab): “Child receives dental care in a clinic with a smiling dentist” Shixart1985 / CC BY 2.0 (cropped)
- Related lab (Periodontology Lab): “Healthy gingiva” Mohamed Hamze / Public domain (cropped)
- Related lab (Oral and Maxillofacial Functional Therapeutics Lab): “Team Mildenhall Dental Clinic- Bright smiles lead to mission success (4967541)” U.S. Air Force photo by Airman 1st Class Brandon Esau / Public domain (cropped)
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