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Microvessel detection test by photoacoustic imaging

An exploratory clinical study using a photoacoustic imaging device in surgical planning for lymphatic venous anastomosis

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1061230019
Enrollment
60
Registered
2023-06-02
Start date
2023-06-13
Completion date
Unknown
Last updated
2025-07-18

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

Conditions

Lymphedema Lymphedema

Interventions

Perform preoperative evaluation of vessels using photoacoustic imaging equipment

Sponsors

Koshima Isao
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1.Patients who have been diagnosed with secondary lower extremity lymphedema after ovarian cancer or uterine cancer treatment and are scheduled to receive LVA treatment 2.Patients aged 18 years or older at the time of consent form acquisition 3.Patients who do not have mental illness or dementia, and who are judged by the principal investigator or co-investigator to be in good health to participate in the study. 4.Patients who have voluntarily given their written informed consent to participate in the study.

Exclusion criteria

Exclusion criteria: 1.Patients who are allergic or suspected to be allergic to iodine (However, if they have a history of ICG administration after an episode suggestive of iodine allergy and have not developed allergic symptoms, this is not applicable.) 2.Patients who are pregnant or may be pregnant 3.Patients who are taking kosen therapeutic agents (Photofylline, etc.) 4.Patients who have experienced a vagal reflex 5. If the research subject's physical condition is hindered by taking the shooting position or taking the shooting posture, or if cellulitis is seriously injured, the research director or co-investigator determines that it is inappropriate to conduct this research.

Design outcomes

Primary

MeasureTime frame
Vessel detection sensitivity

Secondary

MeasureTime frame
1. Concordance of detection by ICG examination, ultrasound imaging, photoacoustic imaging 2. Perform subgroup analysis for each imaging condition 3. Analyze the morphological characteristics and relationships of lymphatic vessels according to severity

Contacts

Public ContactToshiro Mese

International center for lymphedema

mese.toshiro1818@me.com+81-822575555

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Feb 4, 2026