Fecal Incontinence: Endoanal US versus Endoanal MR Imaging

Rociu, Elena; Stoker, J.; Eijkemans, M. J. C.; Schouten, W. R.; Laméris, Johan S.

doi:10.1148/radiology.212.2.r99au10453

Cited by 144 publications

(63 citation statements)

References 21 publications

(19 reference statements)

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“…Unfortunately, it has only a 65% success rate. A recent study indicated that external sphincteric atrophy detectable only with endoanal MR imaging could be predictive of a poor outcome of anterior anal repair (9). In this respect, the use of endoanal MR imaging may lead to better patient selection and therefore better results.…”

Section: N Effect On Treatment Of Fecal Incontinencementioning

confidence: 99%

“…On coronal images, the thickness of all anal muscles may be compared; such comparison makes external sphincteric atrophy easy to detect (Fig 11). Several studies have demonstrated a good correlation between atrophy as seen at endoanal MR imaging and the findings at surgery and histopathologic investigation of the biopsy specimens (8,9). Therefore, endoanal MR imaging is of major importance in the preoperative assessment of fecal incontinence.…”

mentioning

confidence: 99%

“…n RadioGraphics n S175 defined as an extreme generalized thinning (Fig 10), has been proved to be a predictive factor for a negative outcome of sphincteric surgery (9). On coronal images, the thickness of all anal muscles may be compared; such comparison makes external sphincteric atrophy easy to detect (Fig 11).…”

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confidence: 99%

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Endoanal MR Imaging of the Anal Sphincter in Fecal Incontinence

Rociu¹,

Stoker²,

Zwamborn³

et al. 1999

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Fecal incontinence is a major medical and social problem. The most frequent cause is a pathologic condition of the anal sphincter. Endoanal magnetic resonance (MR) imaging allows detailed visualization of the normal anatomy and pathologic conditions of the anal sphincter. The hyperintense internal sphincter appears as a continuation of the smooth muscle of the rectum; the hypointense external sphincter surrounds the lower part of the internal sphincter. A sphincteric defect is seen as a discontinuity of the muscle ring. Scarring appears as a hypointense deformation of the normal pattern of the muscle layer. Two external sphincteric patterns may be misdiagnosed as defects: a posterior discontinuity (often seen in young male patients) and an anterior discontinuity (often seen in female patients). Atrophy of the external sphincter is easily detected on coronal MR images by comparing the thicknesses of all anal muscles. Endoanal MR imaging is superior to endoanal ultrasonography because of the multiplanar capability and higher inherent contrast resolution of the former. Use of endoanal MR imaging may lead to better selection of candidates for surgery and therefore better surgical results. Endoanal MR imaging is the most accurate technique for detection and characterization of sphincteric lesions and planning of optimal therapy.

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Section: N Effect On Treatment Of Fecal Incontinencementioning

confidence: 99%

mentioning

confidence: 99%

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Endoanal MR Imaging of the Anal Sphincter in Fecal Incontinence

Rociu¹,

Stoker²,

Zwamborn³

et al. 1999

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“…In the assessment of perianal Crohn's disease, EUS has a 91% accuracy, comparable and complementary to MRI and evaluation under general anaesthetic 55 . EUS also has >90% sensitivity for the detection of anal sphincter defects in faecal incontinence 56 , 57 however studies comparing EUS with MRI are conflicting 58 , 59 .…”

Section: Perianal Diseasementioning

confidence: 99%

Endoscopic ultrasound: an overview of its role in current clinical practice

Chung

Kwan

2009

Australas J Ultrason Med

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“…Zur Diagnosestellung der externen Sphinkterruptur wurde beispielsweise die endoanale MR gegenüber dem Ultraschall als besser betrachtet[12].Während andere die beiden Verfahren gleich bewerteten, wurde das MR in der Diagnostik der internen Sphinkterpathologie als das Unterlegenere bezeichnet[10]. Letztlich ergänzen sich beide Untersuchungen, und es ist am besten mit beiden vertraut zu sein.…”

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Endoanale MR-Bildgebung

Frudinger

Buchanan

Halligan

2003

Chirurg

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Endoanal MR imaging is an alternative to anal endosonography for the acquisition of high-resolution images of the external and internal anal sphincter. A dedicated anal receiver coil is placed in the anus so that it spans the sphincter complex. Highly detailed images of the sphincters can be obtained in any plane and the morphological abnormalities found in various types of anal incontinence can be demonstrated. Whilst MR demonstrates external sphincter disruption with an efficacy similar to that of endosonography, it is better able to demonstrate external sphincter atrophy that is presumed secondary to neuropathy. The finding of coexisting muscular atrophy on MR may prejudice the effects of anal sphincter repair for obstetric disruption.

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Fecal Incontinence: Endoanal US versus Endoanal MR Imaging

Cited by 144 publications

References 21 publications

Endoanal MR Imaging of the Anal Sphincter in Fecal Incontinence

Endoanal MR Imaging of the Anal Sphincter in Fecal Incontinence

Endoscopic ultrasound: an overview of its role in current clinical practice

Endoanale MR-Bildgebung

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