Dynamic Magnetic Resonance (MR) Study in Evaluating the Vertebral Bone Marrow Perfusion and Its Related Research

NCT ID: NCT00172224

Last Updated: 2012-11-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2002-08-31

Brief Summary

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The etiology and pathogenesis of osteoporosis has been extensively discussed. The relationship between bone blood circulation and the formation of bony trabeculae has been less understood. There is plenty of indirect evidence highly suggestive of the correlation between these two factors, such as: the number of blood vessels in the per unit area of the bone marrow was decreased in the osteoporotic bone, indicating the possible role of a microvascular defect in the pathogenesis of osteoporosis.

Furthermore, the bone mineral density in severe arteriosclerotic patients was lower than in the less affected subjects. In a large scale epidemiologic study, diminished bone mineral density was strongly associated with increased deaths from stroke. Osteopenia was also associated with an increased risk of stroke. These reports highly suggest the effect of ischemia on bone metabolism and make the investigators more interested in further investigation.

A dynamic contrast-enhanced magnetic resonance (MR) study was used recently in evaluating the blood perfusion of bone tumors. This method also has a strong correlation with the microsphere blood flow measurements. The investigator (T.F. Shih) used the dynamic MR in her recent two researches:

1. To differentiate benign versus malignant spinal compression fractures.
2. To evaluate the blood perfusion of non-fractured, normal-appearing vertebral bodies and find its significant correlation with aging and sex.

The alterations of bone marrow perfusion are synchronous with the changes of bone mineral density. Thus, based on the investigators' previous research work, they propose to further explore the relationship between bone marrow perfusion and bone mineral density in different age groups.

Detailed Description

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The etiology and pathogenesis of osteoporosis has been extensively discussed. The relationship between bone blood circulation and the formation of bony trabeculae has been less understood. There is plenty of indirect evidence highly suggestive of the correlation between these two factors, such as: the number of blood vessels in the per unit area of the bone marrow was decreased in the osteoporotic bone, indicating the possible role of a microvascular defect in the pathogenesis of osteoporosis.

Furthermore, the bone mineral density in severe arteriosclerotic patients was lower than in the less affected subjects. In a large scale epidemiologic study, diminished bone mineral density was strongly associated with increased deaths from stroke. Osteopenia was also associated with an increased risk of stroke. These reports highly suggest the effect of ischemia on bone metabolism and make the investigators more interested in further investigation.

A dynamic contrast-enhanced magnetic resonance (MR) study was used recently in evaluating the blood perfusion of bone tumors. This method also has a strong correlation with the microsphere blood flow measurements. The investigator (T.F. Shih) used the dynamic MR in her recent two researches:

1. To differentiate benign versus malignant spinal compression fractures.
2. To evaluate the blood perfusion of non-fractured, normal-appearing vertebral bodies and find its significant correlation with aging and sex.

The alterations of bone marrow perfusion are synchronous with the changes of bone mineral density. Thus, based on the investigators' previous research work, they propose to further explore the relationship between bone marrow perfusion and bone mineral density in different age groups.

Conditions

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Osteoporosis Fractures, Compression

Keywords

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osteoporosis compression fracture bone marrow perfusion MR spectroscopy hormone therapy

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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osteoporosis

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Normal subjects
* Elder subjects with osteoporosis

Exclusion Criteria

* History of malignancy or infection
Minimum Eligible Age

40 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Taiwan University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Tiffany Ting-Fang Shih, M.D.

Role: PRINCIPAL_INVESTIGATOR

Department of Medical Image, National Taiwan University Hospital

Locations

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Tiffany Ting-Fang Shih

Taipei, , Taiwan

Site Status

Countries

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Taiwan

Other Identifiers

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NSC 91-2314-B-002-395

Identifier Type: -

Identifier Source: secondary_id

NSC 92-2314-B-002-172

Identifier Type: -

Identifier Source: secondary_id

32244

Identifier Type: -

Identifier Source: org_study_id