Revista nº 815

Fernando J, et al. | Anatomic variations of the healthy colon 25 Actual Med.2022;107(815):18- 26 segmentation of the entire surface of the colon can result in reduced accuracy of the reconstruction and subsequent measurements, compared to image digitization and processing of the reconstruction with other software packages. (7,26,27) Nevertheless, the same working protocol was followed with all images, thus minimizing the margin of error generated in the present study. CONCLUSION Our study sought to combine the description and characterization of the influence of sex, age, and BMI on the anatomy of the colon with the help of three- dimensional reconstruction. The importance of this combination lies in its potential application in clinical practice and teaching. Preoperative preparation for colon surgery can be improved with this technique, like what the Tarragona group previously reported using the dimensions of the bony pelvis for laparoscopic approach to rectal tumours. (11) This method would also allow for the development of virtual anatomical models based on different patient groups, which can be used in teaching and in surgical training. (14-17) In conclusion, three-dimensional reconstructions from CT scans can aid the study of the anatomical variations and disposition of the colon between different human subjects. Sex, age, and BMI of individual patients have a significant influence on the anatomy of the colon. ACKNOWLEDGEMENT The authors wish to sincerely thank those who donated their bodies to science so that anatomical research could be performed. Results from such research can potentially improve patient care and increase mankind's overall knowledge. Therefore, these donors and their families deserve our highest gratitude. The authors thank the staff of the Department of Radiodiagnosis at the Hospital Royo Villanova of Zaragoza for their collaboration in obtaining the study images, as well as the staff of the Department of Microbiology, Preventive Medicine and Public Health at the University of Zaragoza for their help in performing statistical analyses. CONFLICT OF INTERESTS The authors of this article declare that they have no conflict of interest with respect to what is stated in this work. FUNDING SOURCES This research did not receive any specific grant from funding agencies in the public, commercial, or not-for- profit sectors. BIBLIOGRAPHIC REFERENCES 1. Moore K, Persaud T, Torchia M. Embriología clínica. 8th ed. Elservier: Barcelona; 2008. 2. Mike M, Kano N. Reappraisal of the vascular anatomy of the colon and consequences for the definition of sur- gical resection. Dig Surg. 2013;30(4-6):383-92. DOI: 10.1159/000343156 3. Rouviere H, Delmas A, Delmas V. Anatomía humana: Des- criptiva, topográfica y funcional. 11th ed. Elservier: Barce- lona; 2005. 4. Hounnou G, Destrieux C, Desme J, et al. Anatomical study of the length of the human intestine. Surg Radiol Anat. 2002;24(5):290-4. DOI: 10.1007/s00276-002- 0057-y 5. Hunter A, Eisma R, Lamb C. Thiel embalming fluid-a new way to revive formalin-fixed cadaveric specimens. Clin Anat . 2014;27(6):853-5. DOI: 10.1002/ca.22392 6. Ramachandran I, Rodgers P, Elabassy M, et al. Mul- tidetector computed tomography of the mesocolon: Review of anatomy and pathology. Curr Probl Diagn Radiol. 2009;38(2):84-90. DOI: 10.1067/j.cpra- diol.2007.11.005 7. Bourgouin S, Bege T, Lalonde N, et al. Three-dimen- sional determination of variability in colon anatomy: Applications for numerical modeling of the intesti- ne. J Surg Res. 2012;178(1):172-80. DOI: 10.1016/j. jss.2012.03.054 8. Hirai K, Yoshinari D, Ogawa H, et al. Three-dimen- sional computed tomography for analyzing the vas- cular anatomy in laparoscopic surgery for right-si- ded colon cancer. Surg Laparosc Endosc Percutan Tech. 2013;23(6):536-9. DOI: 10.1097/SLE.0b013e- 31828f66fb 9. Hong D, Tavanapong W, Wong J, et al. 3D Reconstruc- tion of virtual colon structures from colonoscopy ima- ges. Comput Med Imaging Graph. 2014;38(1):22-33. DOI: 10.1016/j.compmedimag.2013.10.005 10. Mark EB, Poulsen JL, Haase AM, et al. Assessment of co- lorectal length using the electromagnetic capsule trac- king system: A comparative validation study in healthy subjects. Colorectal Dis. 2017;19(9):O350-O357. DOI : 10.1111/codi.13810