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An Exploratory Clinical Study for The Development of the Diagnostic Method for Lymphatic-vessel Lesions Using Photoacoustic Imaging

An Exploratory Clinical Study for The Development of the Diagnostic Method for Lymphatic-vessel Lesions Using Photoacoustic Imaging - A Clinical Study to Visualize Lymph Vessels Using Photoacoustic Imaging

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000030500
Enrollment
60
Registered
2017-12-25
Start date
2017-12-26
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

lymphedema

Interventions

After subcutaneous injection of indocyanine green in the dorsum of foot, photoacoustic imaging is taken. (The amount of indocyanine green used is up to 5 mg, and the duration of the device use is fo

Sponsors

Keio University
Lead Sponsor
Canon Inc.
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients aged 20 years or older at the time of consent acquisition and suspected to have lymphedema of the lower limbs, who are judged by their doctor that in a condition without any problems participating in the research. 2. Healthy persons aged 20 years or older at the time of consent acquisition without mental illness, dementia, who are judged by the doctor in charge that in a condition without any problems participating in the research. 3. Pearsons in accordance with criteria 1 or 2 who have agreed to participate in this study from their own free will with document consents.

Exclusion criteria

Exclusion criteria: 1. Pregnancy or possible pregnancy 2. The status of immunodeficiency due to neutropenia and so on. 3. Complications that make imaging difficult (e.g. inability to maintain the posture). 4. In cases where it is judged by the research director or the attending physician that it is inappropriate for carrying out this research (e.g. having trouble with the subject's physical condition by keeping the posture during the imaging).

Design outcomes

Primary

MeasureTime frame
The capability of the photoacoustic imaging system for visualizing the lymph-vessel lesion of the patients

Secondary

MeasureTime frame
1. The relationship between the photoacoustic images and the images by other modalities 2. The relationship between the characteristics of the examinees and the photoacoustic images.

Countries

Japan

Contacts

Public ContactHiroki Kajita

Keio University School of Medicine Department of Plastic and Reconstructive Surgery

jmrbx767@keio.jp03-3352-1524

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026