Endosonographic anatomy of the normal anal canal

Benign Anorectal Diseases: Diagnosis with Endoanal and Endorectal Ultrasound and New Treatment Options

Volumn , Issue , 2006, Pages 35-54

  Santoro, G A ^a   Di Falco, G ^a  

^a Regional Hospital of Treviso   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84889963762     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1007/88-470-0507-8_5     Document Type: Chapter

References (45)

1. Uz A, Elhan A, Ersoy M, Tekdemir I (2004) Internal anal sphincter: an anatomic study. Clin Anat 17:17-20
2. Lunniss PJ, Phillips RKS (1992) Anatomy and function of the anal longitudinal muscle. Br J Surg 79:882-884
3. Bartram CI (2003) Ultrasound. In: Bartram CI, DeLancy JOL. Imaging Pelvic Floor Disorders. Springer, Berlin Heidelberg New York
4. Williams AB, Bartram CI, Halligan S et al (2002) Endosonographic anatomy of the normal anal canal compared with endocoil magnetic resonance imaging. Dis Colon Rectum 45:176-183
5. Shafik A (1976) A new concept of the anatomy of the anal sphincter mechanism and the physiology of defecation III. The longitudinal anal muscle: anatomy and role in sphincter mechanism. Invest Urol 13:271-277
6. Konerding MA, Dzemali O, Gaumann A et al (1999) Correlation of endoanal sonography with cross-sectional anatomy of the anal sphincter. Gastrointest Endosc 50:804-810
7. Shafik A (1975) A new concept of the anatomy of the anal sphincter mechanism and the physiology of defecation. The external anal sphincter: a triple-loop system. Invest Urol 12:412-419
8. Thakar R, Sultan A (2004) Anal endosonography and its role in assessing the incontinent patient. Best Pract Res Clinic Obstet Gynaec 18:157-173
9. Santoro GA, Di Falco G (2004) Basic anatomy. In: Santoro GA, Di Falco G. Atlas of endoanal and endorectal ultrasonography. Springer Italy, Milan
10. Stoker J (2003) The anatomy of the pelvic floor and sphincters. In: Bartram CI, DeLancy JOL. Imaging Pelvic Floor Disorders. Springer, Berlin Heidelberg New York
11. Woodman PJ, Graney DO (2002) Anatomy and physiology of the female perineal body with relevance to obstetrical injury and repair. Clin Anat 15:321-334
12. Bartram CI, Frudinger A (1997) Handbook of anal endosonography. Wrightson Biomedical, Petersfield
13. Burnett SJD, Bartram CI (1991) Endosonographic variations in the normal internal anal sphincter. Int J Colorectal Dis 6:2
14. Vaizey CJ, Kamm MA, Bartram CI (1997) Primary degeneration of the internal anal sphincter as a cause of passive faecal incontinence. Lancet 349:612-615
15. Williams AB, Bartram CI, Halligan S et al (2001) Multiplanar anal endosonography - normal anal canal anatomy. Colorectal Disease 3:169-174
16. Sultan AH, Kamm MA, Talbot IC et al (1994) Anal endosonography for identifying external sphincter defects confirmed histologically. Br J Surg 81:463-465
17. Frudinger A, Halligan S, Bartram CI et al (2002) Female anal sphincter: age-related differences in asymptomatic volunteers with high-frequency endoanal US. Radiology 224:417-423
18. Beets-Tan RGH, Morren GL, Beets GL et al (2001) Measurement of anal sphincter muscles: endoanal US, endoanal MR imaging, or phased-array MR imaging? A study with healthy volunteers. Radiology 220:81-89
19. Stoker J, Halligan S, Bartram CI (2001) Pelvic floor imaging. Radiology 218:621-641
20. Fritsch H, Brenner E, Lienemann A, Ludwikowski B (2002) Anal sphincter complex: reinterpreted morphology and its clinical relevance. Dis Colon Rectum 45:188-194
21. Williams AB, Cheetham MJ, Bartram CI et al (2000) Gender differences in the longitudinal pressure profile of the anal canal related to anatomical structure as demonstrated on three-dimensional anal endosonography. Br J Surg 87:1674-1679
22. Gold DM, Bartram CI, Halligan S et al (1999) Three-dimensional endoanal sonography in assessing anal canal injury. Br J Surg 86:365-370
23. Bollard RC, Gardiner A, Lindow S et al (2002) Normal female anal sphincter: difficulties in interpretation explained. Dis Colon Rectum 45:171-175
24. Zetterstrom JP, Mellgren A, Madoff RD et al (1998) Perineal body measurement improves evaluation of anterior sphincter lesions during endoanal ultrasonography. Dis Colon Rectum 41:705-713
25. Oberwalder M, Thaler K, Baig MK et al (2004) Anal ultrasound and endosonographic measurement of perineal body thickness. A new evaluation for fecal incontinence in females. Surg Endosc 18:650-654
26. Nielsen MB, Hauge C, Rasmussen OO et al (1992) Anal sphincter size measured by endosonography in healthy volunteers. Effect of age, sex and parity. Acta Radiol 33:453-456
27. Enck P, Heyer T, Gantke B et al (1997) How reproducible are measures of the anal sphincter muscle diameter by endoanal ultrasound? Am J Gastroenterol 92:293-296
28. Gold DM, Halligan S, Kmiot WA, Bartram CI (1999) Intraobserver and interobserver agreement in anal endosonography. Br J Surg 86:371-375
29. Williams AB, Bartram CI, Modhwadia D et al (2001) Endocoil magnetic resonance imaging quantification of external sphincter atrophy. Br J Surg 88:853-859
30. Williams AB, Malouf AJ, Bartram CI et al (2001) Assessment of external anal sphincter morphology in idiopathic fecal incontinence with endocoil magnetic resonance imaging. Dig Dis Sci 46:1466-1471
31. Hussain SM, Stoker J, Zwamborn AW et al (1996) Endoanal MR imaging of the anal sphincter complex: correlation with cross-sectional anatomy and histology. J Anat 189:677-682
32. Rociu E, Stoker J, Eijkemans MJC, Lameris JS (2000) Normal anal sphincter anatomy and age-and sexrelated variations at high-spatial-resolution endoanal MR imaging. Radiology 217:395-401
33. Morren GL, Beets-Tan GH, van Engelshoven MA (2001) Anatomy of the anal canal and perianal structures as defined by phase-array magnetic resonance imaging. Br J Surg 88:1506-1512
34. De Souza NM, Puni R, Zbar A et al (1996) MR imaging of the anal sphincter in multiparous women using an enoanal coil: correlation with in vitro anatomy and appearances in fecal incontinence. Am J Roentgenol 167:1465-1471
35. Stoker J, Rociu E, Zwamborn AW et al (1999) Endoluminal MR imaging of the rectum and anus: technique, applications and pitfalls. Radiographics 19:383-398
36. Sentovich SM, Wong WD, Blatchford GJ (1998) Accuracy and reliability of transanal ultrasound for anterior anal sphincter injury. Dis Colon Rectum 41:1000-1014
37. Kumar A, Scholefield JH (2000) Endosonography of the anal canal and rectum. World J Surg 24:208-215
38. Hussain SM, Stoker J, Schutte HE, Lameris JS (1996) Imaging of the anorectal region. Europ J Radiol 22:116-122
39. Sultan AH, Kamm MA, Hudson CN et al (1993) Anal-sphincter disruption during vaginal delivery. N Engl J Med 329:1905-1911
40. Zetterstrom JP, Mellgren A, Jensen LL et al (1999) Effect of delivery on anal sphincter morphology and function. Dis Colon Rectum 42:1253-1260
41. Burnett SJ, Spence-Jones C, Speakman CT et al (1991) Unsuspected sphincter damage following childbirth revealed by anal endosonography. Br J Radiol 64:225-227
42. Tjandra JJ, Milsom JW, Stolfi VM et al (1992) Endoluminal ultrasound defines anatomy of the anal canal and pelvic floor. Dis Colon Rectum 35:465-470
43. Nielsen MB, Rasmussen OO, Pedersen JF, Christiansen J (1993) Anal endosonographic findings in patients with obstructed defecation. Acta Radiol 34:35-38
44. Williams AB, Bartram CI, Halligan S et al (2001) Multiplanar anal endosonography-normal anal canal anatomy. Colorectal Dis 3:169-174
45. West RL, Felt-Bersma RJF, Hansen BE et al (2005) Volume measurement of the anal sphincter complex in healthy controls and fecal-incontinent patients with a three-dimensional reconstruction of endoanal ultrasonography images. Dis Colon Rectum 48:540-548