References

IJMABHR

International Journal of Medical and All Body Health Research

IJMABHR

2582-8940

Anfo Publication House

153

Study of anatomic variations of intrahepatic bile ducts using magnetic resonance cholangiopancreatography

Garg

Sumit

Sylonia

Subash C

Garga

Umesh C

Kuchay

Ishfaq Ayoub

1Student, Department of Radio Diagnosis, Saraswati Institute of Medical Sciences, Hapur, Uttar Pradesh, India 2Professor and HOD, Department of Radio Diagnosis, Saraswati Institute of Medical Sciences, Hapur, Uttar Pradesh, India 3Professor, Department of Radio Diagnosis, Saraswati Institute of Medical Sciences, Hapur, Uttar Pradesh, India 4Senior Resident, Department of Radio Diagnosis, Saraswati Institute of Medical Sciences, Hapur, Uttar Pradesh, India

2022

3 4 71 94 18112022 08122022

CC BY-NC-SA 4.0

Background and Aim: The aim of this study was to describe the anatomical variations occurring in the branching patterns of intrahepatic bile ducts(IHDs) and their frequencies in general north Indian population using MR cholangiography. Methods: The study was conducted on 110 patients undergoing MR cholangiography for different indications. Anatomical variations in IHDs were classified based on the variable insertion of right posterior hepatic bile duct (RPHD) using Huang classification. Results: Anatomy of the IHD was typical (Huang A1) in 58.2% of cases (n = 64) and atypical in 41.8% (n=46), showing Huang A2, 13.6% (n = 15); Huang A3, 15.4% (n = 17); Huang A4, 9.1% (n = 10); and Huang A5, 3.63% (n = 4). The Huang A1 cases were then subtyped according to distance (L) between RPHD insertion and the junction of right and left hepatic ducts into S1 subtype (L > 1 cm) and S2 subtype (L ≤ 1 cm). We had 43 subjects with subtype S1 (39.1%) and 21 subjects with subtype S2 (19.1%). Conclusion: MRC is an important tool for biliary tract mapping and it provides excellent identification of biliary variants which can reduce the incidence of biliary complications in hepatobiliary surgeries.

intrahepaticmagneticanatomicvariations

References 1

Ragozzino A, De Ritis R, Mosca A, Iaccarino V, Imbriaco M. Value of MR cholangiography in patients with iatrogenic bile duct injury after cholecystectomy. American Journal of Roentgenology. 2004; 183(6):1567-72.

Guiney MJ, Kruskal JB, Sosna J, Hanto DW, Goldberg SN, Raptopoulos V. Multi-detector row CT of relevant vascular anatomy of the surgical plane in split-liver transplantation. Radiology. 2003; 229(2):401-7.

Kapoor V, Peterson MS, Baron RL, Patel S, Eghtesad B, Fung JJ. Intrahepatic Biliary Anatomy of Living Adult Liver Donors: Correlation of Mangafodipir Trisodium-Enhanced MR Cholangiography and Intraoperative Cholangiography. American Journal of Roentgenology. 2002; 179(5):1281-6.

Karakas HM, Celik T, Alicioglu B. Bile duct anatomy of the Anatolian Caucasian population: Huang classification revisited. Surg Radiol Anat. 2008; 30(7):539-45.

Yeh BM, Breiman RS, Taouli B, Qayyum A, Roberts JP, Coakley FV. Biliary tract depiction in living potential liver donors: comparison of conventional MR, mangafodipir trisodium-enhanced excretory MR, and multi-detector row CT cholangiography-initial experience. Radiology. 2004; 230(3):645-51.

Huang TL, Cheng YF, Chen CL, Chen TY, Lee TY. Variants of the bile ducts: clinical application in the potential donor of living-related hepatic transplantation. In Transplantation proceedings 1996 28(3):1669-1670).

Kamisawa T, Takuma K, Anjiki H, et al. Pancreatico biliary maljunction. Clin Gastroenterol Hepatol 2009; 7(11):S84-8.

Limanond P, Raman SS, Ghobrial RM, Busuttil RW, Lu DS. The utility of MRCP in preoperative mapping of biliary anatomy in adult‐to‐adult living related liver transplant donors. Journal of Magnetic Resonance Imaging: An Official Journal of the International Society for Magnetic Resonance in Medicine. 2004; 19(2):209-15.

Gazelle GS, Lee MJ, Mueller PR. Cholangiographic segmental anatomy of the liver. Radio Graphics. 1994; 14:1005-1013.

Puente SG, Bannura GC. Radiological anatomy of the biliary tract: variations and congenital abnormalities. World J Surg. 1983; 7:271-276.

Piana S, Piccoli M, Roccasalva F, et al. Anatomic variants of the biliary tree: a retrospective Magnetic Resonance Cholangiopancreatography (MRCP) evaluation. European Congress of Radiology, 2017. https://dx.doi. org/10.1594/ecr2017/C-2417.

Mortelé KJ, Ros PR. Anatomic variants of the biliary tree: MR cholangiographic findings and clinical applications. AJR Am J

Goldman J, Florman S, Varotti G, Gondolesi GE, Gerning A, Fishbein T, et al. Noninvasive preoperative evaluation of biliary anatomy in right-lobe living donors with mangafodipir trisodium enhanced.

Caruso S, Miraglia R, Maruzzelli L, Gruttadauria S, Luca A, Gridelli B. Imaging in liver transplantation. World J Gastroenterol. 2009; 15(6):675-683.

Ohkubo M, Nagino M, Kamiya J, Yuasa N, Oda K, Arai T, et al. Surgical anatomy of the bile ducts at the hepatic hilum as applied to living donor liver transplantation. Ann Surg. 2004; 239:82-86.

Kim RD, Sakamoto S, Haider MA, Molinari M, Gallinger S, McGilvray ID, et al. Role of magnetic resonance cholangiography in assessing biliary anatomy in right lobe living donors. Transplantation 200; 79:1417-1421.

Dusunceli E, Erden A, Erden I. Anatomic variations of the bile ducts: MRCP findings. Tani Girisim Radyol. 2004; 10:296-303.

Choi JW, Kim TK, Kim KW, Kim AY, Kim PN, Ha HK, et al. Anatomic variation in intrahepatic bile ducts: an analysis of intraoperative cholangiograms in 300 consecutive donors for living donor liver transplantation. Korean J Radiol. 2003; 4(2):85-90.