UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060611
Receipt number R000068815
Scientific Title A Randomized Controlled Trial of an AI-Based Adaptive 3D Navigation System to Assist Intraoperative Ultrasonography in Minimally Invasive Liver Resection
Date of disclosure of the study information 2026/03/01
Last modified on 2026/02/07 12:06:08

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Basic information

Public title

A study evaluating AI-based 3D navigation for anatomical understanding during intraoperative ultrasonography in minimally invasive liver resection

Acronym

AI-US (AI-assisted Intraoperative Decision-support with US) study

Scientific Title

A Randomized Controlled Trial of an AI-Based Adaptive 3D Navigation System to Assist Intraoperative Ultrasonography in Minimally Invasive Liver Resection

Scientific Title:Acronym

AI-US (AI-assisted Intraoperative Decision-support with US) study

Region

Japan


Condition

Condition

Patients deemed eligible for hepatectomy

Classification by specialty

Hepato-biliary-pancreatic surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to prospectively evaluate whether an AI-based adaptive 3D navigation system improves anatomical understanding during intraoperative ultrasonography in minimally invasive liver resection.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Time to identify target anatomical structures (seconds)

Key secondary outcomes

Accuracy, Identification error (cm)


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

No need to know


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Device,equipment

Interventions/Control_1

AI based adaptive 3D navigation assisted intraoperative ultrasonography

Interventions/Control_2

conventional intraoperative ultrasound alone, without AI-assisted adaptive 3D navigation

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Medical students and surgeons who are engaged in clinical training or surgical practice at our institution during the study period

Key exclusion criteria

None

Target sample size

24


Research contact person

Name of lead principal investigator

1st name Satoshi
Middle name
Last name Ogiso

Organization

Department of Surgery, Graduate School of Medicine, Kyoto University

Division name

Division of Hepato-Biliary-Pancreatic Surgery and Transplantation

Zip code

6068507

Address

54 Shogo-in Kawahara-cho, Sakyo-ku, Kyoto, JAPAN

TEL

+81-75-751-3242

Email

ogiso@kuhp.kyoto-u.ac.jp


Public contact

Name of contact person

1st name Satoshi
Middle name
Last name Ogiso

Organization

Department of Surgery, Graduate School of Medicine, Kyoto University

Division name

Division of Hepato-Biliary-Pancreatic Surgery and Transplantation

Zip code

6068507

Address

54 Shogo-in Kawahara-cho, Sakyo-ku, Kyoto, JAPAN

TEL

+81-75-751-3242

Homepage URL


Email

ogiso@kuhp.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name



Funding Source

Organization

Nakatani Foundation

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School and Faculty of Medicine, Ethics Committee

Address

53 Shogoin-kawahara-cho, Sakyo-ku, Kyoto, JAPAN

Tel

+81-75-366-7618

Email

ethcom@kuhp.kyoto-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 12 Month 23 Day

Date of IRB


Anticipated trial start date

2026 Year 02 Month 01 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 02 Month 07 Day

Last modified on

2026 Year 02 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068815