Three-dimensional magnetic resonance visualisation of fistula-in-ano
Magnetic resonance imaging (MRI) is recognised as providing the ‘gold standard’ assessment of fistula-in-ano anatomy, knowledge which is fundamental to a successful clinical outcome . However, interpretation of two-dimensional (2D) monotone magnetic resonance images can prove difficult for the operating surgeon, who is more used to visualising anatomical structures in three dimensions. We describe an imaging technique enabling three-dimensional (3D) reconstruction of complex fistula-in-ano disease.
Imaging is performed following a standard pelvic imaging protocol on a 1.5-T MRI system. In order to produce a 3D- model, axial and coronal T2-weighted turbo inversion recovery magnitude (TIRM) images and axial T2-weighted turbo spin echo (TSE) images orientated along the anal canal axis are used. Following image interpretation by a consultant radiologist, a standardised radiological report is produced. After surgical review of the imaging and report,...
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
This study did not need ethical approval from the local ethical committee.
For this type of study formal consent is not required.
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- 2.Horvat M, Nelson A, Piper J, Traughber B, Faulhaber P (2012) Time savings for liver volume generation: comparison of manual and deformable segmentation methods. J Nucl Med 53(supp 1):2264Google Scholar