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Volumn 14, Issue 4, 2003, Pages 441-449

Preoperative evaluation of the entire hepatic vasculature in living liver donors with use of contrast-enhanced MR angiography and true fast imaging with steady-state precession

Author keywords

[No Author keywords available]

Indexed keywords

GADOLINIUM PENTETATE;

EID: 0037386443     PISSN: 10510443     EISSN: None     Source Type: Journal    
DOI: 10.1097/01.RVI.0000064853.87207.42     Document Type: Article
Times cited : (55)

References (55)
  • 1
    • 0028267545 scopus 로고
    • Liver transplantation using a right lobe graft from a living related donor
    • Yamaoka Y, Washida M, Honda K, et al. Liver transplantation using a right lobe graft from a living related donor. Transplantation 1994; 57:1127-1130.
    • (1994) Transplantation , vol.57 , pp. 1127-1130
    • Yamaoka, Y.1    Washida, M.2    Honda, K.3
  • 2
    • 0027516868 scopus 로고
    • Donor hepatectomy for living related partial liver transplantation
    • Makuuchi M, Kawasaki S, Noguchi T, et al. Donor hepatectomy for living related partial liver transplantation. Surgery 1993; 113:395-402.
    • (1993) Surgery , vol.113 , pp. 395-402
    • Makuuchi, M.1    Kawasaki, S.2    Noguchi, T.3
  • 3
    • 0034088150 scopus 로고    scopus 로고
    • Partial left lateral segment transplant from a living donor
    • De Santibanes E, McCormack L, Mattera J, et al. Partial left lateral segment transplant from a living donor. Liver Transpl 2000;6:108-112.
    • (2000) Liver Transpl , vol.6 , pp. 108-112
    • De Santibanes, E.1    McCormack, L.2    Mattera, J.3
  • 4
    • 0025943574 scopus 로고
    • Liver transplantation in children from living liver donors
    • Broelsch C, Whitington P, Emond J, et al. Liver transplantation in children from living liver donors. Ann Surg 1991; 214:428-439.
    • (1991) Ann Surg , vol.214 , pp. 428-439
    • Broelsch, C.1    Whitington, P.2    Emond, J.3
  • 5
    • 0029958831 scopus 로고    scopus 로고
    • Left lobectomy of the donor: Operation for larger recipients in living related liver transplantation
    • Ikai I, Moromoto T, Yamamoto Y, et al. Left lobectomy of the donor: operation for larger recipients in living related liver transplantation. Transplant Proc 1996; 28:56-58.
    • (1996) Transplant Proc , vol.28 , pp. 56-58
    • Ikai, I.1    Moromoto, T.2    Yamamoto, Y.3
  • 6
    • 0033610250 scopus 로고    scopus 로고
    • Right lobe living donor liver transplantation
    • Marcos A, Fisher R, Ham J, et al. Right lobe living donor liver transplantation. Transplantation 1999; 68:798-803.
    • (1999) Transplantation , vol.68 , pp. 798-803
    • Marcos, A.1    Fisher, R.2    Ham, J.3
  • 7
    • 0034659943 scopus 로고    scopus 로고
    • Selection and outcome of living donors for adult to adult right lobe transplantation
    • Marcos A, Fisher R, Ham J, et al. Selection and outcome of living donors for adult to adult right lobe transplantation. Transplantation 2000; 69:2410-2414.
    • (2000) Transplantation , vol.69 , pp. 2410-2414
    • Marcos, A.1    Fisher, R.2    Ham, J.3
  • 8
    • 0034049077 scopus 로고    scopus 로고
    • Right lobe living donor liver transplantation: A review
    • Marcos A. Right lobe living donor liver transplantation: a review. Transplantation 2000; 6:3-20.
    • (2000) Transplantation , vol.6 , pp. 3-20
    • Marcos, A.1
  • 9
    • 0031418731 scopus 로고    scopus 로고
    • Adult-to-adult living donor liver transplantation
    • Chung-Mau L, Sheung-Tat F, ChiLeung L, et al. Adult-to-adult living donor liver transplantation. Ann Surg 1997; 226:261-270.
    • (1997) Ann Surg , vol.226 , pp. 261-270
    • Chung-Mau, L.1    Sheung-Tat, F.2    ChiLeung, L.3
  • 10
    • 0031911993 scopus 로고    scopus 로고
    • Living related liver transplantation in adults
    • Kawasaki S, Masatoshi M, Hidetoshi M, et al. Living related liver transplantation in adults. Ann Surg 1998; 227:269-274.
    • (1998) Ann Surg , vol.227 , pp. 269-274
    • Kawasaki, S.1    Masatoshi, M.2    Hidetoshi, M.3
  • 11
    • 0028883090 scopus 로고
    • Donor safety in living related liver transplantation
    • Morimoto T, Tanaka A, Ikai I, et al. Donor safety in living related liver transplantation. Transplant Proc 1995; 27:1166-1169.
    • (1995) Transplant Proc , vol.27 , pp. 1166-1169
    • Morimoto, T.1    Tanaka, A.2    Ikai, I.3
  • 12
    • 0034064360 scopus 로고    scopus 로고
    • Safety of donors in live donor liver transplantation using right lobe grafts
    • Fan S, Lo C, Liu C, al. e. Safety of donors in live donor liver transplantation using right lobe grafts. Arch Surg 2000; 135:336-340.
    • (2000) Arch Surg , vol.135 , pp. 336-340
    • Fan, S.1    Lo, C.2    Liu, C.3
  • 13
    • 0032470702 scopus 로고    scopus 로고
    • Complications in 100 living liver donors
    • Grewal H, Thistlewaite J, Loss G, et al. Complications in 100 living liver donors. Ann Surg 1998; 228:214-229.
    • (1998) Ann Surg , vol.228 , pp. 214-229
    • Grewal, H.1    Thistlewaite, J.2    Loss, G.3
  • 14
    • 0028837482 scopus 로고
    • Safety of the donor in living-related liver transplantation - An analysis of 100 parental donors
    • Yamaoka Y, Morimoto T, Inamoto T, et al. Safety of the donor in living-related liver transplantation - an analysis of 100 parental donors. Transplantation 1995; 59:224-226.
    • (1995) Transplantation , vol.59 , pp. 224-226
    • Yamaoka, Y.1    Morimoto, T.2    Inamoto, T.3
  • 15
    • 0023295512 scopus 로고
    • Hepatic artery in liver transplantation
    • Todo S, Makowka L, Tzakis A, et al. Hepatic artery in liver transplantation. Transplant Proc 1987; 19:2406-2411.
    • (1987) Transplant Proc , vol.19 , pp. 2406-2411
    • Todo, S.1    Makowka, L.2    Tzakis, A.3
  • 16
    • 0032572987 scopus 로고    scopus 로고
    • Accessory right hepatic artery arising from the left - Implications for split liver transplantation
    • Rela M, McCall J, Karani J, et al. Accessory right hepatic artery arising from the left - implications for split liver transplantation. Transplantation 1998; 66:792-814.
    • (1998) Transplantation , vol.66 , pp. 792-814
    • Rela, M.1    McCall, J.2    Karani, J.3
  • 18
    • 0035140372 scopus 로고    scopus 로고
    • High-spatial-resolution contrast-enhanced MR angiography of the renal arteries: A prospective comparison with digital subtraction angiography
    • Fain S, King B, Breen J, et al. High-spatial-resolution contrast-enhanced MR angiography of the renal arteries: a prospective comparison with digital subtraction angiography. Radiology 2001; 21:481-490.
    • (2001) Radiology , vol.21 , pp. 481-490
    • Fain, S.1    King, B.2    Breen, J.3
  • 19
    • 0031958157 scopus 로고    scopus 로고
    • Gadolinium-enhanced 3D MRA of the aortic arch vessels in the detection of atherosclerotic cerebrovascular occlusive disease
    • Krinsky G, Maya M, Rofsky N, et al. Gadolinium-enhanced 3D MRA of the aortic arch vessels in the detection of atherosclerotic cerebrovascular occlusive disease. J Comput Assist Tomogr 1998; 22:167-178.
    • (1998) J Comput Assist Tomogr , vol.22 , pp. 167-178
    • Krinsky, G.1    Maya, M.2    Rofsky, N.3
  • 20
    • 0030939253 scopus 로고    scopus 로고
    • Diagnosis of pulmonary embolism with magnetic resonance angiography
    • Meaney J, Weg J, Chenevert T, et al. Diagnosis of pulmonary embolism with magnetic resonance angiography. N Engl J Med 1997; 336:1422-1427.
    • (1997) N Engl J Med , vol.336 , pp. 1422-1427
    • Meaney, J.1    Weg, J.2    Chenevert, T.3
  • 21
    • 0028845732 scopus 로고
    • Breath-hold gadolinium-enhanced MR angiography of the abdominal aorta and its major branches
    • Prince MR, Narasimham DL, Stanley JC, et al. Breath-hold gadolinium-enhanced MR angiography of the abdominal aorta and its major branches. Radiology 1995; 197:785-792.
    • (1995) Radiology , vol.197 , pp. 785-792
    • Prince, M.R.1    Narasimham, D.L.2    Stanley, J.C.3
  • 22
    • 0028351567 scopus 로고
    • Gadolinium-enhanced MR aortography
    • Prince M. Gadolinium-enhanced MR aortography. Radiology 1994; 191:155-164.
    • (1994) Radiology , vol.191 , pp. 155-164
    • Prince, M.1
  • 23
    • 0035088021 scopus 로고    scopus 로고
    • MR evaluation of ventricular function: True fast imaging with steady-state precession versus fast low-angle shot cine MR imaging. Feasibility study
    • Barkhausen J, Ruehm S, Goyen M, et al. MR evaluation of ventricular function: true fast imaging with steady-state precession versus fast low-angle shot cine MR imaging. Feasibility study. Radiology 2001; 219:264-269.
    • (2001) Radiology , vol.219 , pp. 264-269
    • Barkhausen, J.1    Ruehm, S.2    Goyen, M.3
  • 24
    • 0035023617 scopus 로고    scopus 로고
    • Cine MR angiography of the heart with segmented true fast imaging with steady-state precession
    • Carr J, Simonetti O, Bundy J, et al. Cine MR angiography of the heart with segmented true fast imaging with steady-state precession. Radiology 2001; 219:828-834.
    • (2001) Radiology , vol.219 , pp. 828-834
    • Carr, J.1    Simonetti, O.2    Bundy, J.3
  • 26
    • 0035047877 scopus 로고    scopus 로고
    • Live donor adult liver transplantation using right lobe grafts: Donor evaluation and surgical outcome
    • Pomfret E, Pomposelli J, Lewis W, et al. Live donor adult liver transplantation using right lobe grafts: donor evaluation and surgical outcome. Arch Surg 2001; 136:425-433.
    • (2001) Arch Surg , vol.136 , pp. 425-433
    • Pomfret, E.1    Pomposelli, J.2    Lewis, W.3
  • 27
    • 0029882075 scopus 로고    scopus 로고
    • Angiographic selection criteria for living related liver transplant donors
    • Kostelic J, Piper J, Leef J, et al. Angiographic selection criteria for living related liver transplant donors. AJR Am J Roentgenol 1996; 166:1103-1108.
    • (1996) AJR Am J Roentgenol , vol.166 , pp. 1103-1108
    • Kostelic, J.1    Piper, J.2    Leef, J.3
  • 28
    • 0026564750 scopus 로고
    • Arteriographic complications in the DSA era
    • Waugh JR, Sacharias N. Arteriographic complications in the DSA era. Radiology 1992; 182:243-246.
    • (1992) Radiology , vol.182 , pp. 243-246
    • Waugh, J.R.1    Sacharias, N.2
  • 29
    • 0035077065 scopus 로고    scopus 로고
    • 3D CT angiography in patients before and after liver transplantation
    • Weszelits V, Doros A, Puhl M, et al. 3D CT angiography in patients before and after liver transplantation. Transplant Proc 2001; 33:1372-1376.
    • (2001) Transplant Proc , vol.33 , pp. 1372-1376
    • Weszelits, V.1    Doros, A.2    Puhl, M.3
  • 30
    • 0033659783 scopus 로고    scopus 로고
    • Detection of vascular complications after liver transplantation: Early experience in multislice CT angiography with volume rendering
    • Katyal S, Oliver J, Buck D, et al. Detection of vascular complications after liver transplantation: early experience in multislice CT angiography with volume rendering. AJR Am J Roentgenol 2000; 175:1735-1739.
    • (2000) AJR Am J Roentgenol , vol.175 , pp. 1735-1739
    • Katyal, S.1    Oliver, J.2    Buck, D.3
  • 31
    • 0035488787 scopus 로고    scopus 로고
    • Liver transplantation: Preoperative CT evaluation
    • Pannu H, Maley W, Fishman E. Liver transplantation: preoperative CT evaluation. Radiographics 2001; 21:133-146.
    • (2001) Radiographics , vol.21 , pp. 133-146
    • Pannu, H.1    Maley, W.2    Fishman, E.3
  • 32
    • 0033801711 scopus 로고    scopus 로고
    • Living adult right lobe liver transplantation: Imaging before surgery with multidetector multiphase CT
    • Kamel I, Raptopoulos V, Pomfret E, et al. Living adult right lobe liver transplantation: imaging before surgery with multidetector multiphase CT. AJR Am J Roentgenol 2000; 175:1141-1143.
    • (2000) AJR Am J Roentgenol , vol.175 , pp. 1141-1143
    • Kamel, I.1    Raptopoulos, V.2    Pomfret, E.3
  • 33
    • 0035191231 scopus 로고    scopus 로고
    • Impact of multidetector CT on donor selection and surgical planning before living adult right lobe liver transplantation
    • Kamel I, Kruskal J, Pomfret E, et al. Impact of multidetector CT on donor selection and surgical planning before living adult right lobe liver transplantation. AJR Am J Roentgenol 2001; 176: 193-200.
    • (2001) AJR Am J Roentgenol , vol.176 , pp. 193-200
    • Kamel, I.1    Kruskal, J.2    Pomfret, E.3
  • 34
    • 0025271135 scopus 로고
    • Gadolinium-enhanced MR angiography
    • Creasy J, Price R, Presbrey T, et al. Gadolinium-enhanced MR angiography. Radiology 1990; 175:280-283.
    • (1990) Radiology , vol.175 , pp. 280-283
    • Creasy, J.1    Price, R.2    Presbrey, T.3
  • 35
    • 0027442668 scopus 로고
    • Pulmonary angiography with MR imaging: Preliminary clinical experience
    • Grist T, Sostman H, MacFall J, et al. Pulmonary angiography with MR imaging: preliminary clinical experience. Radiology 1993; 189:523-530.
    • (1993) Radiology , vol.189 , pp. 523-530
    • Grist, T.1    Sostman, H.2    MacFall, J.3
  • 36
    • 0028845732 scopus 로고
    • Breath-hold Gadolinium-enhanced MR angiography of the abdominal aorta and its major branches
    • Prince MR, Narasimham DL, Stanley JC, et al. Breath-hold Gadolinium-enhanced MR angiography of the abdominal aorta and its major branches. Radiology 1995; 197:785-792.
    • (1995) Radiology , vol.197 , pp. 785-792
    • Prince, M.R.1    Narasimham, D.L.2    Stanley, J.C.3
  • 37
    • 22644444480 scopus 로고    scopus 로고
    • Liver transplantation: Dynamic contrast-enhanced magnetic resonance imaging of the hepatic vasculature
    • Ward J, Spencer J, Guthrie J, et al. Liver transplantation: dynamic contrast-enhanced magnetic resonance imaging of the hepatic vasculature. Clin Radiol 1996; 51:191-197.
    • (1996) Clin Radiol , vol.51 , pp. 191-197
    • Ward, J.1    Spencer, J.2    Guthrie, J.3
  • 38
    • 0032903632 scopus 로고    scopus 로고
    • Hepatic blood supply: Comparison of optimized dual-phase contrast-enhanced three-dimensional MR angiography and digital subtraction angiography
    • Kopka K, Rodenwaldt J, Vosshenrich R, et al. Hepatic blood supply: comparison of optimized dual-phase contrast-enhanced three-dimensional MR angiography and digital subtraction angiography. Radiology 1999; 211:51-58.
    • (1999) Radiology , vol.211 , pp. 51-58
    • Kopka, K.1    Rodenwaldt, J.2    Vosshenrich, R.3
  • 39
    • 0029937898 scopus 로고    scopus 로고
    • Breath-hold ultrafast three-dimensional gadolinium-enhanced MR angiography of the aorta and the renal and other visceral arteries
    • Holland G, Dougherty L, Carpenter J, et al. Breath-hold ultrafast three-dimensional gadolinium-enhanced MR angiography of the aorta and the renal and other visceral arteries. AJR Am J Roentgenol 1996; 166:971-981.
    • (1996) AJR Am J Roentgenol , vol.166 , pp. 971-981
    • Holland, G.1    Dougherty, L.2    Carpenter, J.3
  • 40
    • 0034098595 scopus 로고    scopus 로고
    • Three-dimensional gadoliniumenhanced MR angiography of vascular complications after liver transplantation
    • Glockner J, Forauer A, Solomon H, et al. Three-dimensional gadoliniumenhanced MR angiography of vascular complications after liver transplantation. AJR Am J Roentgenol 2000; 174: 1447-1453.
    • (2000) AJR Am J Roentgenol , vol.174 , pp. 1447-1453
    • Glockner, J.1    Forauer, A.2    Solomon, H.3
  • 41
    • 0035145141 scopus 로고    scopus 로고
    • Hepatic MR angiography: A multiobserver comparison of visualization methods
    • Choyke P, Yim P, Marcos H, et al. Hepatic MR angiography: a multiobserver comparison of visualization methods. AJR Am J Roentgenol 2001; 176:465-470.
    • (2001) AJR Am J Roentgenol , vol.176 , pp. 465-470
    • Choyke, P.1    Yim, P.2    Marcos, H.3
  • 42
    • 0032853979 scopus 로고    scopus 로고
    • Gadolinium-enhanced 3D MRA prior to isolated hepatic perfusion for metastases
    • Zeh H, Choyke P, Alexander H, et al. Gadolinium-enhanced 3D MRA prior to isolated hepatic perfusion for metastases. J Comput Assist Tomogr 1999; 23:664-669.
    • (1999) J Comput Assist Tomogr , vol.23 , pp. 664-669
    • Zeh, H.1    Choyke, P.2    Alexander, H.3
  • 43
    • 0031961415 scopus 로고    scopus 로고
    • Vascular complications of liver transplantation: Evaluation with gadolinium-enhanced MR angiography
    • Stafford-Johnson D, Hamilton B, Dong Q, et al. Vascular complications of liver transplantation: evaluation with gadolinium-enhanced MR angiography. Radiology 1998; 207:153-160.
    • (1998) Radiology , vol.207 , pp. 153-160
    • Stafford-Johnson, D.1    Hamilton, B.2    Dong, Q.3
  • 44
    • 0034986692 scopus 로고    scopus 로고
    • Right lobe living donor liver transplantation: Preoperative evaluation of the donor with MR imaging
    • Fulcher A, Szucs R, Bassignani M, et al. Right lobe living donor liver transplantation: preoperative evaluation of the donor with MR imaging. AJR Am J Roentgenol 2001; 176:1483-1491.
    • (2001) AJR Am J Roentgenol , vol.176 , pp. 1483-1491
    • Fulcher, A.1    Szucs, R.2    Bassignani, M.3
  • 45
    • 0034986740 scopus 로고    scopus 로고
    • MR imaging as the sole preoperative imaging modality for right hepatectomy: A prospective study of living adult-to-adult liver donor candidates
    • Lee V, Morgan G, Teperman L, et al. MR imaging as the sole preoperative imaging modality for right hepatectomy: a prospective study of living adult-to-adult liver donor candidates. AJR Am J Roentgenol 2001; 176:1475-1482.
    • (2001) AJR Am J Roentgenol , vol.176 , pp. 1475-1482
    • Lee, V.1    Morgan, G.2    Teperman, L.3
  • 46
    • 0036201188 scopus 로고    scopus 로고
    • Right-lobe living related liver transplantation: Evaluation of a comprehensive magnetic resonance imaging protocol for assessing potential donors
    • Goyen M, Barkhausen J, Debatin J, et al. Right-lobe living related liver transplantation: evaluation of a comprehensive magnetic resonance imaging protocol for assessing potential donors. Liver Transpl 2002; 8:241-250.
    • (2002) Liver Transpl , vol.8 , pp. 241-250
    • Goyen, M.1    Barkhausen, J.2    Debatin, J.3
  • 47
    • 0034778415 scopus 로고    scopus 로고
    • Vascular and extravascular complications of liver transplantation: Comprehensive evaluation with three-dimensional contrast-enhanced volumetric MR imaging and MR cholangiopancreatography
    • Pandharipande P, Lee V, Morgan G, et al. Vascular and extravascular complications of liver transplantation: comprehensive evaluation with three-dimensional contrast-enhanced volumetric MR imaging and MR cholangiopancreatography. AJR Am J Roentgenol 2001; 177:1101-1107.
    • (2001) AJR Am J Roentgenol , vol.177 , pp. 1101-1107
    • Pandharipande, P.1    Lee, V.2    Morgan, G.3
  • 48
    • 0034890285 scopus 로고    scopus 로고
    • Superior diagnostic strength of combined contrast-enhanced MR angiography and MR imaging compared to intra-arterial DSA in liver transplant candidates
    • Boeve WJ, Kok T, Haagsma EB, et al. Superior diagnostic strength of combined contrast-enhanced MR angiography and MR imaging compared to intra-arterial DSA in liver transplant candidates. Magn Reson Imaging 2001; 19:609-622.
    • (2001) Magn Reson Imaging , vol.19 , pp. 609-622
    • Boeve, W.J.1    Kok, T.2    Haagsma, E.B.3
  • 49
    • 0013951851 scopus 로고
    • Newer anatomy of the liver and its variant blood supply and collateral circulation
    • Michels N. Newer anatomy of the liver and its variant blood supply and collateral circulation. Am J Surg 1966; 112:337-347.
    • (1966) Am J Surg , vol.112 , pp. 337-347
    • Michels, N.1
  • 50
    • 0015140540 scopus 로고
    • Surgical significance of anatomic variations of the hepatic artery
    • Suzuki T, Nakayasu A, Kawabe K, et al. Surgical significance of anatomic variations of the hepatic artery. Am J Surg 1971; 122:505-512.
    • (1971) Am J Surg , vol.122 , pp. 505-512
    • Suzuki, T.1    Nakayasu, A.2    Kawabe, K.3
  • 51
    • 0023295512 scopus 로고
    • Hepatic artery in liver transplantation
    • Todo S, Makowka A, Tzakis A, et al. Hepatic artery in liver transplantation. Transpl Proc 1987; 19:2406-2411.
    • (1987) Transpl Proc , vol.19 , pp. 2406-2411
    • Todo, S.1    Makowka, A.2    Tzakis, A.3
  • 52
    • 0032995345 scopus 로고    scopus 로고
    • Hepatic arterial supply from the cystic artery: Findings on arteriography, CT arteriography and CT during arterial portography
    • Takayasu K, Muramatsu Y, Iwata R. Hepatic arterial supply from the cystic artery: findings on arteriography, CT arteriography and CT during arterial portography. AJR Am J Roentgenol 1999; 172:659-660.
    • (1999) AJR Am J Roentgenol , vol.172 , pp. 659-660
    • Takayasu, K.1    Muramatsu, Y.2    Iwata, R.3
  • 53
    • 0026683312 scopus 로고
    • Intrahepatic portal venous variations: Prevalence with US
    • Atri M, Bret P, Fraser-Hill M, et al. Intrahepatic portal venous variations: prevalence with US. Radiology 1992; 184:157-158.
    • (1992) Radiology , vol.184 , pp. 157-158
    • Atri, M.1    Bret, P.2    Fraser-Hill, M.3
  • 54
    • 0028861683 scopus 로고
    • Variations in the intrahepatic portions of the hepatic and portal veins: Findings on helical CT scans during arterial portography
    • Soyer P, Bluemke D, Choti M, et al. Variations in the intrahepatic portions of the hepatic and portal veins: findings on helical CT scans during arterial portography. AJR Am J Roentgenol 1995; 164:103-108.
    • (1995) AJR Am J Roentgenol , vol.164 , pp. 103-108
    • Soyer, P.1    Bluemke, D.2    Choti, M.3
  • 55
    • 0019378520 scopus 로고
    • Surgical anatomy of the hepatic veins and the inferior vena cava
    • Nakamura S, Tsuzuki T. Surgical anatomy of the hepatic veins and the inferior vena cava. Surg Gynecol Obstet 1981; 152:43-50.
    • (1981) Surg Gynecol Obstet , vol.152 , pp. 43-50
    • Nakamura, S.1    Tsuzuki, T.2


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