Abstract
Purpose
To determine an accurate method for localizing rectal cancer using the distance from the anal verge on preoperative MRI.
Methods
This prospective study included 50 patients scheduled for MRI evaluation of rectal cancer. After rectal filling with gel, MRI was performed with two markers attached at the anal verge. The distance between the tumor and the anal verge on a sagittal T2-weighted image (T2WI) was measured independently by two radiologists using six methods divided into three groups of similar measurement approaches, and compared to those obtained on rigid sigmoidoscopy. The anal verge location relative to the external anal sphincter was assessed on oblique coronal T2WI in reference to the markers. Correlation analysis was performed using the intraclass correlation coefficient (ICC) for verification, and a paired t test was used to evaluate the mean differences.
Results
The highest correlation (ICC 0.797–0.815) and the least mean difference (0.74–0.85 cm) with rigid sigmoidoscopy, and the least standard deviation (3.12–3.17 cm) were obtained in the direct methods group using a straight line from the anal verge to the tumor. The anal verge was localized within a range of − 1.4 to 1.5 cm (mean − 0.31 cm and − 0.22 cm) from the lower end of the external anal sphincter.
Conclusion
The direct methods group provided the most accurate tumor distance among the groups. Among the direct methods, we recommend the direct mass method for its simplicity. Despite minor differences in location, the lower end of the external anal sphincter was a reliable anatomical landmark for the anal verge.
Similar content being viewed by others
Data availability
Data available on request due to privacy/ethical restrictions.
Abbreviations
- T2WI:
-
T2-weighted image
- ICC:
-
Intraclass correlation coefficient
- EAS:
-
External anal sphincter
References
Tersteeg JJC, Gobardhan PD, Crolla R, Kint PAM, Niers-Stobbe I, Boonman-de Winter LJM, Schreinemakers JMJ (2018) Improving the quality of MRI reports of preoperative patients with rectal cancer: Effect of national guidelines and structured reporting. Am J Roentgenol 210(6):1240-1244. https://doi.org/10.2214/ajr.17.19054
Nougaret S, Reinhold C, Mikhael HW, Rouanet P, Bibeau F, Brown G (2013) The use of MR imaging in treatment planning for patients with rectal carcinoma: have you checked the “DISTANCE”? Radiology 268(2):330-344. https://doi.org/10.1148/radiol.13121361
Delli Pizzi A, Basilico R, Cianci R, Seccia B, Timpani M, Tavoletta A, Caposiena D, Faricelli B, Gabrielli D, Caulo M (2018) Rectal cancer MRI: protocols, signs and future perspectives radiologists should consider in everyday clinical practice. Insights inito Imaging 9(4):405-412. https://doi.org/10.1007/s13244-018-0606-5
Beets-Tan RGH, Lambregts DMJ, Maas M, Bipat S, Barbaro B, Curvo-Semedo L, Fenlon HM, Gollub MJ, Gourtsoyianni S, Halligan S, Hoeffel C, Kim SH, Laghi A, Maier A, Rafaelsen SR, Stoker J, Taylor SA, Torkzad MR, Blomqvist L (2018) Magnetic resonance imaging for clinical management of rectal cancer: Updated recommendations from the 2016 European Society of Gastrointestinal and Abdominal Radiology (ESGAR) consensus meeting. Eur Radiol 28(4):1465-1475. https://doi.org/10.1007/s00330-017-5026-2
Gollub MJ, Arya S, Beets-Tan RG, dePrisco G, Gonen M, Jhaveri K, Kassam Z, Kaur H, Kim D, Knezevic A, Korngold E, Lall C, Lalwani N, Blair Macdonald D, Moreno C, Nougaret S, Pickhardt P, Sheedy S, Harisinghani M (2018) Use of magnetic resonance imaging in rectal cancer patients: Society of Abdominal Radiology (SAR) rectal cancer disease-focused panel (DFP) recommendations 2017. Abdom Radiol (NY) 43(11):2893-2902. https://doi.org/10.1007/s00261-018-1642-9
Cancer KSGfR (2017) Essential Items for Structured Reporting of Rectal Cancer MRI: 2016 Consensus Recommendation from the Korean Society of Abdominal Radiology. Korean J Radiol 18(1):132-151. https://doi.org/10.3348/kjr.2017.18.1.132
Schmoll HJ, Van Cutsem E, Stein A, Valentini V, Glimelius B, Haustermans K, Nordlinger B, van de Velde CJ, Balmana J, Regula J, Nagtegaal ID, Beets-Tan RG, Arnold D, Ciardiello F, Hoff P, Kerr D, Kohne CH, Labianca R, Price T, Scheithauer W, Sobrero A, Tabernero J, Aderka D, Barroso S, Bodoky G, Douillard JY, El Ghazaly H, Gallardo J, Garin A, Glynne-Jones R, Jordan K, Meshcheryakov A, Papamichail D, Pfeiffer P, Souglakos I, Turhal S, Cervantes A (2012) ESMO Consensus Guidelines for management of patients with colon and rectal cancer. a personalized approach to clinical decision making. Ann Oncol 23(10):2479-2516. https://doi.org/10.1093/annonc/mds236
Tanaka A, Sadahiro S, Suzuki T, Okada K, Saito G (2018) Comparisons of rigid proctoscopy, flexible colonoscopy, and digital rectal examination for determining the localization of rectal cancers. Dis Colon Rectum 61(2):202-206. https://doi.org/10.1097/dcr.0000000000000906
Chiang JM, Hsieh PS, Chen JS, Tang R, You JF, Yeh CY (2014) Rectal cancer level significantly affects rates and patterns of distant metastases among rectal cancer patients post curative-intent surgery without neoadjuvant therapy. World J Surg Oncol 12:197. https://doi.org/10.1186/1477-7819-12-197
Bhangu A, Rasheed S, Brown G, Tait D, Cunningham D, Tekkis P (2014) Does rectal cancer height influence the oncological outcome? Col Dis 16(10):801-808. https://doi.org/10.1111/codi.12703
Restivo A, Zorcolo L, Cocco IM, Manunza R, Margiani C, Marongiu L, Casula G (2013) Elevated CEA levels and low distance of the tumor from the anal verge are predictors of incomplete response to chemoradiation in patients with rectal cancer. Ann Surg Oncol 20(3):864-871. https://doi.org/10.1245/s10434-012-2669-8
Nielsen LB, Wille-Jorgensen P (2014) National and international guidelines for rectal cancer. Col Dis 16(11):854-865. https://doi.org/10.1111/codi.12678
Goldenberg BA, Holliday EB, Helewa RM, Singh H (2018) Rectal cancer in 2018: A primer for the gastroenterologist. Am J Gastroenterol 113(12):1763-1771. https://doi.org/10.1038/s41395-018-0180-y
Merchea A, Larson DW (2017) Anus. In: Sabiston DC, Townsend CM (eds) Sabiston textbook of surgery. 20th edn. Elsevier, Philadelphia, pp 1394-1417
Standring S (2016) Large intestine. In: Standring S (ed) Gray’s anatomy, vol Chapter 66. Elsevier, Philadelphia, pp 1136-1159
Floch MH (2020) Anatomy of the colon, rectum, and anus. In: Floch MH, Netter FH (eds) Netter’s gastroenterology. 3rd edn. Elsevier, Philadelphia, pp 280-290
Gorfine SR (2016) Anorectal Crohn’s disease. In: Steele SR, Hull TL, Read TE, Saclarides TJ, Senagore AJ, Whitlow CB (eds) The ASCRS textbook of colon and rectal surgery. 3rd edn. Springer, Cham, pp 819-841. https://doi.org/10.1007/978-3-319-25970-3
Han NY, Kim MJ, Park BJ, Sung DJ (2014) Location of rectal cancer as determined using rectal magnetic resonance imaging, and its relationship with pulmonary metastasis. Turk J Gastroenterol 25(6):661-668. https://doi.org/10.5152/tjg.2014.5616
Meylemans D, Penninckx F, Vanbeckevoort D, Wolthuis AM, Fieuws S, D’Hoore A (2014) Endoscopic versus radiology-based location of rectal cancer. Acta chirurgica Belgica 114 (6):364-369
Furey E, Jhaveri KS (2014) Magnetic resonance imaging in rectal cancer. Magn Reson Imaging Clin N Am 22(2):165-190. https://doi.org/10.1016/j.mric.2014.01.004
Hoeffel C, Mule S, Laurent V, Bouche O, Volet J, Soyer P (2014) Primary rectal cancer local staging. Diagn Interv Imaging 95(5):485-494. https://doi.org/10.1016/j.diii.2014.03.005
Arya S, Das D, Engineer R, Saklani A (2015) Imaging in rectal cancer with emphasis on local staging with MRI. Indian J Radiol Imaging 25(2):148-161. https://doi.org/10.4103/0971-3026.155865
Garcia Figueiras R, Caro Dominguez P, Garcia Dorrego R, Vazquez Martin A, Gomez Caamano A (2012) Prognostic factors and functional imaging in rectal cancer. Radiologia 54(1):45-58. https://doi.org/10.1016/j.rx.2011.05.017
Paparo F, Puppo C, Montale A, Bacigalupo L, Pascariello A, Clavarezza M, Binda C, Rollandi GA, Binda GA (2014) Comparison between magnetic resonance imaging and rigid rectoscopy in the preoperative identification of intra- and extraperitoneal rectal cancer. Colorectal Dis 16(11):O379-O385. https://doi.org/10.1111/codi.12698
Shihab OC, Moran BJ, Heald RJ, Quirke P, Brown G (2009) MRI staging of low rectal cancer. Eur Radiol 19(3):643-650. https://doi.org/10.1007/s00330-008-1184-6
Torkzad MR, Pahlman L, Glimelius B (2010) Magnetic resonance imaging (MRI) in rectal cancer: a comprehensive review. Insights into Imaging 1(4):245-267. https://doi.org/10.1007/s13244-010-0037-4
Donner A, Zou G (2002) Testing the equality of dependent intraclass correlation coefficients. Statistician 51(3):367-379
Walther BA, Moore JL (2005) The concepts of bias, precision and accuracy, and their use in testing the performance of species richness estimators, with a literature review of estimator performance. Ecography 28(6):815-829
Keller DS, Paspulati R, Kjellmo A, Rokseth KM, Bankwitz B, Wibe A, Delaney CP (2014) MRI-defined height of rectal tumours. Br J Surg 101(2):127-132. https://doi.org/10.1002/bjs.9355
Dunaway MT, Webb WR, Rodning CB (1988) Intraluminal measurement of distance in the colorectal region employing rigid and flexible endoscopes. Surg Endosc 2(2):81-83. https://doi.org/10.1007/bf00704359
Schoellhammer HF, Gregorian AC, Sarkisyan GG, Petrie BA (2008) How important is rigid proctosigmoidoscopy in localizing rectal cancer? Am J Surg 196(6):904-908. https://doi.org/10.1016/j.amjsurg.2008.08.005
Glimelius B, Tiret E, Cervantes A, Arnold D, ESMO Guidelines Working Group (2013) Rectal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 24 Suppl 6:vi81-vi88. https://doi.org/10.1093/annonc/mdt240
Funding
The author(s) received no financial support for the research, authorship, and/or publication of this article.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
All other authors have no conflicts of interest.
Ethics approval
This study was approved by Institutional Review Board of Korea University Anam Hospital (IRB Number: 2016AN0022).
Informed consent
Written informed consent was obtained from all patients before study enrollment.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Han, Y.E., Park, B.J., Sung, D.J. et al. How to accurately measure the distance from the anal verge to rectal cancer on MRI: a prospective study using anal verge markers. Abdom Radiol 46, 449–458 (2021). https://doi.org/10.1007/s00261-020-02654-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00261-020-02654-9