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Open Access 01-12-2008 | Research

The importance of rectal cancer MRI protocols on iInterpretation accuracy

Authors: Chikako Suzuki, Michael R Torkzad, Soichi Tanaka, Gabriella Palmer, Johan Lindholm, Torbjörn Holm, Lennart Blomqvist

Published in: World Journal of Surgical Oncology | Issue 1/2008

Abstract

Background

Magnetic resonance imaging (MRI) is used for preoperative local staging in patients with rectal cancer. Our aim was to retrospectively study the effects of the imaging protocol on the staging accuracy.

Patients and methods

MR-examinations of 37 patients with locally advanced disease were divided into two groups; compliant and noncompliant, based on the imaging protocol, without knowledge of the histopathological results. A compliant rectal cancer imaging protocol was defined as including T2-weighted imaging in the sagittal and axial planes with supplementary coronal in low rectal tumors, alongside a high-resolution plane perpendicular to the rectum at the level of the primary tumor. Protocols not complying with these criteria were defined as noncompliant. Histopathological results were used as gold standard.

Results

Compliant rectal imaging protocols showed significantly better correlation with histopathological results regarding assessment of anterior organ involvement (sensitivity and specificity rates in compliant group were 86% and 94%, respectively vs. 50% and 33% in the noncompliant group). Compliant imaging protocols also used statistically significantly smaller voxel sizes and fewer number of MR sequences than the noncompliant protocols

Conclusion

Appropriate MR imaging protocols enable more accurate local staging of locally advanced rectal tumors with less number of sequences and without intravenous gadolinium contrast agents.

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Title: The importance of rectal cancer MRI protocols on iInterpretation accuracy
Authors: Chikako Suzuki
Michael R Torkzad
Soichi Tanaka
Gabriella Palmer
Johan Lindholm
Torbjörn Holm
Lennart Blomqvist
Publication date: 01-12-2008
Publisher: BioMed Central
Published in: World Journal of Surgical Oncology / Issue 1/2008
Electronic ISSN: 1477-7819
DOI: https://doi.org/10.1186/1477-7819-6-89

Keynote webinar | Spotlight on medication adherence

Springer Medicine

The importance of rectal cancer MRI protocols on iInterpretation accuracy

Abstract

Background

Patients and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Patients and methods

Results

Conclusion

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