UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056280
Receipt number R000064307
Scientific Title An Exploratory Study on the Characteristics of Multiple Types of Cortical Bone Imaging in the Spinal Region
Date of disclosure of the study information 2024/11/27
Last modified on 2025/11/28 10:39:14

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Basic information

Public title


An Exploratory Study on the Characteristics of Multiple Types of Cortical Bone Imaging in the Spinal Region

Acronym


An Exploratory Study on the Characteristics of Multiple Types of Cortical Bone Imaging in the Spinal Region

Scientific Title


An Exploratory Study on the Characteristics of Multiple Types of Cortical Bone Imaging in the Spinal Region

Scientific Title:Acronym


An Exploratory Study on the Characteristics of Multiple Types of Cortical Bone Imaging in the Spinal Region

Region

Japan


Condition

Condition

None in particular

Classification by specialty

Radiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To exploratively evaluate the characteristics, appropriate clinical applications, and pitfalls of various cortical bone imaging techniques in the spinal region.

Basic objectives2

Others

Basic objectives -Others

Traditionally, the evaluation of cortical bone and calcifications has been challenging with MRI due to their extremely short T2 values, and CT has been the primary modality used. However, recent advancements have introduced cortical bone imaging (CT-like imaging) techniques, including zero TE, ultra-short TE, 3D multi-gradient echo, and AI-driven MRI-based synthetic CT, enabling cortical bone assessment using MRI. This development offers the potential to simultaneously evaluate soft tissues and bone morphology with MRI alone, promising improved clinical efficiency and economic benefits. However, the characteristics, optimal applications, and pitfalls of each technique remain unclear, limiting their clinical adoption. This study aims to capture spinal region images using these cortical bone imaging techniques and conduct an exploratory evaluation of their features and appropriate clinical applications.

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

In newly acquired spinal MRI cortical bone imaging, a visual scaling evaluation will be performed by multiple reviewers. This evaluation will assess the presence and extent of lesions, anatomical structures, artifacts, and noise levels. The results will be compared with CT examinations of the same patients and the same regions.

Key secondary outcomes

To support the primary evaluation metrics, the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) will be calculated for each sequence, and these quantitative values will be compared and analyzed.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

MRI bone cortical imaging

Interventions/Control_2


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

Patients for whom spinal MRI was clinically indicated and who had previously undergone CT imaging of the same region.
Patients for whom the target cortical bone imaging was successfully performed without issues.

Key exclusion criteria

- Individuals under 18 years of age
- Individuals unsuitable for MRI examinations (e.g., those with pacemakers or other metallic implants, or those with claustrophobia)
- Individuals who do not consent to participate in the study
- Pregnant individuals or those who may be pregnant
- Other individuals deemed unsuitable by the principal investigator or co-investigators

Target sample size

393


Research contact person

Name of lead principal investigator

1st name Taiki
Middle name
Last name Nozaki

Organization

Keio University, School of Medicine

Division name

Department of Radiology

Zip code

160-8582

Address

35 Shinanomachi, Shinjuku-ku, Tokyo

TEL

03-3353-1211

Email

nozaki@rad.med.keio.ac.jp


Public contact

Name of contact person

1st name Manabu
Middle name
Last name Hase

Organization

Keio University, School of Medicine

Division name

Department of Radiology

Zip code

160-8582

Address

35 Shinanomachi, Shinjuku-ku, Tokyo

TEL

03-3353-1211

Homepage URL


Email

hase@rad.med.keio.ac.jp


Sponsor or person

Institute

Keio University

Institute

Department

Personal name



Funding Source

Organization

Keio University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Keio University School of Medicine Ethics Committee

Address

35 Shinanomachi, Shinjuku-ku, Tokyo

Tel

03-3353-1211

Email

keio@esct.bvits.com


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

2024 Year 11 Month 27 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

Open public recruiting

Date of protocol fixation

2024 Year 11 Month 26 Day

Date of IRB

2024 Year 11 Month 25 Day

Anticipated trial start date

2024 Year 11 Month 27 Day

Last follow-up date

2028 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

2024 Year 11 Month 27 Day

Last modified on

2025 Year 11 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064307