The anorectal sphincter after rectal pull-through surgery for anorectal anomalies: MRI evaluation

Vade, Aruna; Reyes, Hernán M.; Wilbur, Andrew C.; Gyi, B.; Spigos, D G

doi:10.1007/bf02388652

Cited by 34 publications

(11 citation statements)

References 6 publications

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“…Controversy still exists concerning the methods includ ing barium enema, anorectal manometries, CT or MRI to evaluate the long-term results [3,9], A satisfactory barium enema combined with absence of subjective criteria formed the adequate answer in our case.…”

Section: Discussionmentioning

confidence: 99%

Congenital Anal Atresia and Rectovaginal Fistula in a 43-Year-Old Woman

İsgör¹,

Demirel²,

Sezgin³

1995

Dig Surg

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Section: Discussionmentioning

confidence: 99%

Congenital Anal Atresia and Rectovaginal Fistula in a 43-Year-Old Woman

İsgör¹,

Demirel²,

Sezgin³

1995

Dig Surg

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“…Some studies use subjective, visual evaluation of the sphincter muscle complex without measurements [14,20,31], whereas others use a comparison with MRI studies in patients without anorectal disease [29]. Only Vade et al have studied the age-variable normal thickness of the puborectalis muscle on CT examinations done for reasons other than anorectal malformations [23]. They detected a progressive increase in puborectalis muscle thickness with age, and selected a thickness measurement of 2.5 mm as the lower limit of normal in children less than 2 months of age.…”

Section: Mr Imaging Of the Anorectal Malformationsmentioning

confidence: 99%

MR imaging of anorectal malformations and associated anomalies

1998

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Congenital anorectal malformations are found in many forms, and are frequently associated with other anomalies, especially of the spinal cord, spine, and urogenital system. Decisions concerning initial management of children with anorectal malformations can be made only after accurate determination of (a) the level and type of malformation, (b) the type of fistula, (c) the developmental state of the sphincter muscle complex, and (d) the presence of associated anomalies. Magnetic resonance imaging has proven to be the only modality to answer all these crucial questions, and has contributed to a better insight in the morphology and pathogenesis of such complex congenital malformations.

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“…Surface MRI has been extensively used in defining the level of congenital anorectal malformations, the presence or absence of fistulae, associated urological abnormalities and the nature of coincident spinal dysraphism [15][16][17]. This modality has been used in the postoperative assessment of patients particularly following posterior sagittal anorectoplasty with specific emphasis on the extent of development of the puborectalis sling which appears to correlate with functional outcome [18][19][20]. Recently, the endoanal receiver coil has been used in the assessment of the postoperative case where T1-weighted and STIR (short tau inversion recovery) sequences in the transverse and coronal views provide an impression of the amount of postoperative scarring and IAS/EAS defects, both correlating with clinical outcome [21,22].…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging and the coloproctologist

Zbar

2001

Tech Coloproctol

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for the assessment of obstetric sphincter damage and changed our understanding of the natural history of this condition. Moreover, it became a mandatory pre-operative assessment of low rectal cancers whose rostral extent lay within reach of the probe, influencing the utilization of local therapies for cure, neo-adjuvant radiotherapy in particular for improvement in long-term outcome and chemo-radiotherapy for clinical disease down-staging.More recently, magnetic resonance imaging (MRI) both as a surface tool and as an endoluminal tool has developed for specialized usage by the coloproctologist in the assessment of benign and malignant anorectal disease. It has received recent attention as a dynamic modality for the demonstration of specific disorders of the pelvic floor and rectal evacuation although its exact place in pelvic floor dysfunction needs to be determined.This short review assesses the indications and pitfalls of the use of MRI technology in the delineation of anorectal disease and dysfunction. Defining anorectal anatomyThe recent introduction of high-resolution endoluminal MRI appears to have largely settled many of the traditional disputes concerning the anatomy of the internal and external anal sphincters (IAS and EAS) in man. The confusing anatomical studies which divided the sphincter into one [1,2] or two [3,4] components have been replaced by the 3-component model of the EAS as part of the puborectalis complex with a variable constitutive amount of overlap of the end of the IAS [5, 6].This has been confirmed by the coronal views provided by MRI technology (and recently by computer-aided 3-dimensional reconstruction of axial ultrasound images). Variability in main sphincter overlap may be present in different anorectal diseases, perhaps accounting for poor clinical results in those undergoing either internal anal sphincterotomy or anal Tech Coloproctol (2001) 5:1-7Abstract A personal view of the clinical importance and usage of magnetic resonance imaging (MRI) in coloproctology is presented. The real advantage of this modality lies in the assessment of complex recurrent perirectal sepsis. Recent research shows a potential value of dynamic surface MRI in patients with functional disorders of evacuation.

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The anorectal sphincter after rectal pull-through surgery for anorectal anomalies: MRI evaluation

Cited by 34 publications

References 6 publications

Congenital Anal Atresia and Rectovaginal Fistula in a 43-Year-Old Woman

Congenital Anal Atresia and Rectovaginal Fistula in a 43-Year-Old Woman

MR imaging of anorectal malformations and associated anomalies

Magnetic resonance imaging and the coloproctologist

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