A Clinical Trial of Photoacoustic Imaging in the Planning of Free Flaps

A Clinical Trial of Diagnostic Photoacoustic Imaging System in the Planning of Free Flap Surgery

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCTs052200139

Enrollment

Registered

2021-02-19

Start date

2021-08-18

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

conditions requiring reconsructive surgeries using free flaps Head and neck cancer, Breast cancer

Interventions

The use of photoacoustic imaging in the planning of free flaps

diagnostic imaging system

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients who are planned to undergo reconstructive surgeries using flaps at Kyoto Univ.'s Hospital 2. Aged 20 years or older at the time of the informed consent

Exclusion criteria

Exclusion criteria: 1. Pregnant or lactating women 2. Photosensitizer for photodynamic therapy 3. A cardiac pacemaker in their body 4. Severe systemic disease corresponding to ASA-PS (American Society of Anesthesiologists physical status classification) Class 4 or larger. 5. Infection at the examined body sites 6. Difficult in communicating or body positioning during examinations

Design outcomes

Primary

Measure	Time frame
Subjective evaluation (visibility and ease of use of vascular map) Objective evaluation (accuracy of the location of perforators)	—

Secondary

Measure	Time frame
Visual properties of perforating vessels Anatomical variations of vessels Correspondence of findings from photoacoustic imaging and those in ICG tests during surgery	—

Contacts

Public ContactNagai Yoshiko

Kyoto University Hospital

y_nagai@kuhp.kyoto-u.ac.jp+81-75-751-3613

Outcome results

None listed

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