Clinical trial · Observational
US-CT Fusion for Post Implant Dosimetry
Comparison Between Postoperative Ultrasound-CT Fusion With MRI-CT Fusion for Postimplant Dosimetry for Prostate LDR Permanent Seed Brachytherapy
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Post implant dosimetry is an essential part of quality assurance after permanent seed prostate brachytherapy. CT imaging is the standard of assessment but due to contouring uncertainties, MR-CT fusion is preferred. This is not always available due to financial restrictions. This study explores the possibility of post implant US-CT fusion to improve contouring accuracy and potentially replace the use of MR-CT fusion.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Prostate Cancer | Malignant Prostate Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| transrectal ultrasound | Diagnostic Test | — | UNRESOLVED |
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- Comparison of prostate dosimetry assessed by US-CT fusion with respect to the standard MR-CT fusion
- timeFrame
- 1 month
- description
- Dosimetry will be calculated using 2 different imaging modalities (US vs MRI) and compared
Secondary outcomes (1)
- measure
- Comparison of prostate volume assessed by 2 different imaging modalities
- timeFrame
- 1 month
- description
- Assessment of prostate volume as contoured on US vs MRI post implant
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 40 Years
- Maximum age
- 80 Years
Show eligibility criteria text
Inclusion Criteria: * localized prostate cancer suitable for permanent seed implant brachytherapy as either monotherapy or as a boost Exclusion Criteria: * Unable to undergo MRI
References
Publications (0)
Data not yet available