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Hirata Lab
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A biomedical information lab that reads information about the inside of the body from ultrasound waves.
AboutAbout the lab
Reading information about the body in ultrasound waves
The Hirata Lab studies methods for learning about the inside of the body from the information carried by ultrasound waves.
It measures position, structure, and physical quantities from ultrasound reflected by an object or transmitted through it.
The aim is to derive from these measurements information about living tissue and information that can be used for diagnosis.
Currently the lab works on evaluating the condition of the liver from ultrasound images and on examining bone mass in the heel with ultrasound.
Key terms
- Diffuse liver disease
- A disease in which inflammation, necrosis, and regeneration of hepatocytes repeat because of alcohol, viruses, fatty change, and other causes.
- Airborne ultrasound
- Ultrasound that travels through air. In this research it is transmitted through the heel to examine bone without touching it.
- Osteoporosis
- A condition in which bone mass decreases and the bones become weak. Examinations using ultrasound are used for diagnosis.
NewsLab news
Associate Professor Hirata received the 13th Society Activity Contribution Award from the Acoustical Society of Japan
A student received a Student Paper Award at NCSP'25
A student received the 28th Student Outstanding Presentation Award from the Acoustical Society of Japan
ResearchResearch themes
The lab measures the position, structure, and physical quantities of an object from the wave information in ultrasound, and derives information about the body and information that can be used for diagnosis. It works on evaluating the condition of the liver and on assessing bone mass without contact.
*Illustrative imageBiological information processing through ultrasound measurement
The lab measures position, structure, and physical quantities from ultrasound reflected by an object or propagated through it. The aim is to derive biological information and diagnostic information from these measurements.
*Illustrative imageQuantitative diagnosis of liver fibrosis
In diffuse liver disease, fibrous tissue forms during the process of inflammation, necrosis, and regeneration of hepatocytes. The lab is investigating methods to quantitatively evaluate the amount and stiffness of this tissue from the contrast of ultrasound images and from the response to vibration applied from outside the body.
*Illustrative imageMeasuring bone with airborne ultrasound
In ultrasound diagnosis of osteoporosis, conventional devices clamp the heel firmly from both sides, so depending on the size and shape of the heel, examination is sometimes impossible. For more versatile and efficient measurement, the lab is investigating non-contact bone evaluation using airborne ultrasound transmitted through the heel.
MembersFaculty
The lab's members consist of faculty, master's and undergraduate students, and research students.As of 2025
- Associate ProfessorShinnosuke Hirata
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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: “Pelvic Ultrasound Examination Navi Mumbai India” Goleisureintl / CC BY 4.0 (cropped)
- Biological information processing through ultrasound measurement: “A medical ultrasound linear array probe, scan head, transducer” Harrison Keely / CC BY 4.0 (cropped)
- Quantitative diagnosis of liver fibrosis: “Liver Transient Elastography (FibroScan) result showing Liver Stiffness Measurement (LSM) and Controlled Attenuation Parameter (CAP)” Goleisureintl / CC BY 4.0 (cropped)
- Measuring bone with airborne ultrasound: “Ossa pedis (sin) - calcaneus (medial view detail)” MAKY.OREL / CC0 (cropped)
- Related lab (マイクロCT・
医用画像工学研究室): “X-ray Computed Tomography of Astromaterials -- jsc2024e076997” NASA Johnson Space Center / ROBERT MARKOWITZ NASA-JSC / Public domain (cropped) - Related lab (超
音波グループ 応用物理学研究室 （ULAP・吉田研究室） ): “A modern medical ultrasound scanner” Harrison Keely / CC BY 4.0 (cropped) - Related lab (山本研究室): “ITER Central Solenoid CICC ( )” Charlie Sanabria / CC BY-SA 2.0 (cropped)
- Related lab (超
音波グループ 組織性状診断研究室 （ULTC・山口研究室） ): “Doppler Ultrasound and Vascular Sonography Examination in Navi Mumbai, Maharashtra, India” Goleisureintl / CC BY 4.0 (cropped)
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