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Quantum Imaging Technology Lab
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The lab studies how to evaluate the image quality of medical images such as CT and MRI.
AboutAbout the lab
Measuring the quality of CT, MRI, and X-ray images
The Quantum Imaging Technology Lab studies methods for evaluating image quality and radiation dose in CT, MRI, and X-ray images.
Professor Kondo works on developing methods for evaluating the image quality of CT and MRI, and for quantitative evaluation, which means measuring numerical values from images.
Assistant Professor Tanaka's main research is the quantitative evaluation of medical radiation exposure and image quality in digital X-ray imaging systems.
The source site belongs to the Division of Medical Quantum Science and also introduces other faculty members.
Key terms
- Dual Energy CT
- CT that uses data from different X-ray energies. It can produce virtual monoenergetic X-ray images.
- Monte Carlo simulation
- A method that reproduces the behavior of radiation through calculations using random numbers.
- Elastography
- A method in ultrasonography that images the stiffness of tissue.
ResearchResearch themes
Professor Kondo studies methods for evaluating CT and MRI image quality and the numerical values measured from images (quantitative values). Assistant Professor Tanaka works on imaging and image quality evaluation for X-ray and ultrasound images.
*Illustrative imageMonte Carlo simulation of CT imaging
The lab studies Monte Carlo simulation of CT imaging. Its main keyword is Dual Energy CT.
*Illustrative imageInverse problems using virtual monoenergetic X-ray images
The lab examines inverse problems that use the virtual monoenergetic X-ray images of Dual Energy CT. It explores methods for back-calculating properties such as the density of materials from images.
*Illustrative imageImaging techniques for ultrasound diagnosis
The lab studies imaging techniques for ultrasound diagnostic systems. Its keywords are ultrasonography, elastography, breast imaging, imaging technique, and image evaluation.
*Illustrative imageImage quality and radiation dose in digital X-ray imaging
The lab evaluates the image quality and radiation dose of digital radiography systems. Its keywords are FPD, CR, detectability, and deep learning.
MembersFaculty
The faculty page of the Division of Medical Quantum Science lists Professor Masatoshi Kondo and Assistant Professor Nobukazu Tanaka.As of 2026
- ProfessorMasatoshi Kondo
- Assistant ProfessorNobukazu Tanaka
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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: “Dual Energy CT images with gout tophi shown in green” BMJ Publishing Group Limited / CC BY 4.0 (cropped)
- Monte Carlo simulation of CT imaging: “CT Brain Scan” Goleisureintl / CC BY 4.0 (cropped)
- Inverse problems using virtual monoenergetic X-ray images: “Dental x-ray tube” Kyle Senior / CC BY-SA 4.0 (cropped)
- Imaging techniques for ultrasound diagnosis: “A modern medical ultrasound scanner” Harrison Keely / CC BY 4.0 (cropped)
- Image quality and radiation dose in digital X-ray imaging: “X-ray of the hand of an 8 year old male - case 1 - dorsoplantar” Staff at the Department of Radiology, UC San Diego Health. / Public domain (cropped)
- Related lab (Quantum Image Analysis Lab): “CT Spine Back Pain Scan Imaging Navi Mumbai” Goleisureintl / CC BY 4.0 (cropped)
- Related lab (Quantum Functional Therapeutic Science Lab): “PET-CT Siemens Biograph01” Brudersohn / CC BY-SA 3.0 (cropped)
- Related lab (Quantum Information Science Lab): “Bron - CERMEP - Salle du scanner TEP-CT de 2010, scanner de face” Romainbehar / CC0 (cropped)
- Related lab (Quantum Technology Science Lab): “Brachytherapy” Medicalpicture / CC BY 4.0 (cropped)
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