The prospective multicentre cohort study about benign and malignant discrimination of chocolate cyst using MRI R2 value.

The prospective multicentre cohort study about benign and malignant discrimination of chocolate cyst using MRI R2 value. - MRS multicentre study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034969

Enrollment

120

Registered

2018-11-21

Start date

2018-11-22

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

Epithelial ovarian tumor

Interventions

After the conduction of MRI for ovarian tumor, to compare its R2 value and pathological outcomes as endometriosis associated ovarian cancer, non endometriosis associated ovarian cancer, endometriosis

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: Epithelial ovarian tumor

Exclusion criteria

Exclusion criteria: 1. Metastatic ovarian tumor 2. Inadequate patient decided by researcher 3. Less than 5cm of tumor long diameter 4. Distinctive mucinous cyst adenoma or dermoid cyst 5. Unbearable to undergo MRI(claustrophobia etc. ) 6. Inadequate patient having mental manifestation or psychiatric disorder 7. Unable to indicate one's intention

Design outcomes

Primary

Measure	Time frame
1. Reevalutation of R2 cut-off value(endometriosis associated ovarian cancer vs endometriosis).	—

Secondary

Measure	Time frame
2. Evaluation of R2 value in non endometriosis associated ovarian cancer. 3. Variation in R2 value at malignant transformation. 4. Evaluation of R2 value in benign ovarian tumor (except for chocolate cyst).	—

Countries

Japan

Contacts

Public ContactNaoki Kawahara

Nara Medical University Department of Obstetrics and gynecology

naoki35@naramed-u.ac.jp0744-22-3051(ext.6336)

Outcome results

None listed

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