Preoperative Assessment for Synchronous Carcinoma or Polyps With Magnetic Resonance (MR) Colonography

Preoperative Assessment for Synchronous Carcinoma or Polyps With MR Colonography in Patients With Obstructing Cancer. A Prospective Study.

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00300547

Enrollment

Registered

2006-03-09

Start date

2007-03-31

Completion date

Unknown

Last updated

2010-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructing Colorectal Cancer

Keywords

colorectal cancer, polyps, Virtual colonoscopy, synchronous carcinoma, MR colonography

Brief summary

The purpose of this study is to diagnose possible synchronous carcinomas and polyps with magnetic resonance (MR) colonography in patients booked for operation because of carcinoma in the descending or sigmoid colon, where a preoperative full colonoscopy is not possible. Two days before colonography, patients ingest a 200 ml Barium sulfate solution four times a day, which will render fecal masses invisible on the following MR colonography. The study is primarily a feasibility study with altered operative strategy as a secondary end-point. Gold standard is colonoscopy and operation.

Interventions

PROCEDUREMR colonography

Altered planned surgical procedure if MR colonoscopy reveals synchronous cancer or larger polyps

Study design

Allocation

NON_RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Obstructing colorectal cancer

Exclusion criteria

* Suspicion of IBD * Pacemaker * Metal in the body * Claustrophobia * Pregnancy

Design outcomes

Primary

Measure	Time frame
Feasibility of MR colonography to diagnose possible synchronous carcinomas and polyps	3

Secondary

Measure	Time frame
Altered operative strategy due to findings on MR colonography	3

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026