The Impact of Preoperative Breast MRI in Patients With Breast Cancer Selected for Breast Conserving Surgery

July 11, 2011 updated by: Nordlandssykehuset HF

The Impact of Preoperative Breast MRI in Newly Diagnosed Breast Cancer. A Prospective Study of Treatment Outcome in Patients Selected for Breast Conserving Surgery in a Norwegian Multidisciplinary Breast Cancer Clinic.

The purpose of this prospective observational study is to evaluate the impact of preoperative breast MRI in patients with breast cancer selected for breast- conserving surgery. MRI is a more sensitive radiological modality than mammography and ultrasonography. Patients with small breast cancers are, based on conventional modalities, selected for breast-conserving surgery. If preoperative breast MRI reveal additional lesions in the breasts, and malignancy is confirmed histopathologically, this finding leads to a change of surgical method to mastectomy.

Study Overview

Status

Completed

Conditions

Detailed Description

The aim of the study is to evaluate the impact of preoperative breast MRI on primary surgical treatment in a highly specialized multidisciplinary breast cancer clinic. The clinic serves a population of 237.000. The diagnostic tools routinely used are conventional mammography, ultrasound with core needle biopsy, and clinical examination including palpation of breast and axillary nodes. If indicated, the examination includes ultrasound examination and fine needle biopsy of axillary glands. We offer all patients selected for breast-conserving surgery preoperative breast MRI.

We include consecutively breast cancer lesions in women aged 35-75 in a prospective study, collecting data from January 2009 to December 2010. The patients are all selected for breast-conserving surgery based on the criteria recommended by the Norwegian Breast Cancer Group. That is, tumor ≤ 4 cm, or acceptable tumor:breast ratio, and age > 35. Multifocal lesions, defined as more than one tumor > 1 cm apart, size of tumor > 4 cm, or a large tumor:breast ratio, extensive ductal carcinoma in situ (DCIS), or known genetic disposition for breast cancer, indicates mastectomy according to these criterias. In addition, when postoperative radiation therapy is contraindicated, mastectomy is indicated. If the patients fill the criteria for breast-conserving surgery, they are offered preoperative breast MRI and included in the study. Patients who either choose mastectomy, or does not get a breast MRI for technical reasons, are excluded from the study. Two experienced breast radiologists evaluate the breast MRIs, and three experienced breast radiologists study the mammographies and perform the ultrasound examinations and biopsies. All additional MRI findings are examined by ultrasound-guided biopsy and given a histological diagnose before it influence the surgical method.

A formal application has been presented to the regional ethical commitee. Since this is an observational study of established practice, the commitee replied that approval was not required.

Study Type

Observational

Enrollment (Actual)

145

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Norway
      • Bodø, Norway, 8092
        • Breast Diagnostic Centre, Dep. of Surgery, Nordlandssykehuset Bodø

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

35 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Probability Sample

Study Population

Patients are selected from screening or they are referred to the Breast Diagnostic Clinic for clinical symptoms. The clinic serves a population of 237.000 in Nordland county, Norway. Patients selected for breast-conserving surgery based on conventional radiological examination, that is bilateral mammography and ultrasonography with biopsy, are consecutively included in the study and offered preoperative breast MRI.

Description

Inclusion Criteria:

  • Patients ≥ 35 years and ≤ 75 years
  • Indication for breast-conserving surgery according to criteria recommended by the Norwegian Breast Cancer Group:
  • Tumor < 4 cm and acceptable tumor:breast ratio
  • Tumor not infiltrating skin or pectoral fascia
  • No multifocality (that is 2 foci or more, > 1 cm apart)

Exclusion Criteria:

  • Patient choose mastectomy
  • Technical problems with the MR machine
  • Pacemaker
  • Anxiety/claustrophobia

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Breast cancer
Patients selected for breast-conserving surgery based on conventional radiological methods, following the criteria recommended by the Norwegian Breast Cancer Group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change of surgical method after preoperative breast MRI in breast cancer
Time Frame: Two years of data collection
Two years of data collection

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Nordlandssykehuset HF

Investigators

  • Principal Investigator: Toril Rabben, MD DDS PhD, Dep. of Surgery, Nordlandssykehuset Bodø, 8092 Bodø, Norway

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2009

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

July 11, 2011

First Submitted That Met QC Criteria

July 11, 2011

First Posted (Estimate)

July 12, 2011

Study Record Updates

Last Update Posted (Estimate)

July 12, 2011

Last Update Submitted That Met QC Criteria

July 11, 2011

Last Verified

January 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PreopMR 2011

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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