腎臓

[O-1-094] Non-contrast MR Angiography Using 3D PC-VIPR for Renal Arteries in Renal Transplantation

^〇汪洋¹, 竹原康雄², 石井保夫³, 杉山将隆¹, 鈴木孝尚³, 大園誠一郎³, 那須初子¹, 神谷実佳¹, 山下修平¹, 芳澤暢子¹, 平井雪¹, 牛尾貴輔¹, 伊東洋平¹, 兵頭直子¹, 宇佐美諭¹, 廣瀬裕子¹, 若山哲也⁴, Wieben Oliver⁵, 阪原晴海¹ (1.浜松医大医学部　放射線科, 2.浜松医大　放射線部, 3.浜松医大　泌尿器科, 4.GEHCJ, 5.Wisconsin大学)

Background: Post-surgical evaluations of the renal arteries is essential in living donor renal transplantation. CT angiography (CTA) is not a method of choice since it requires nephrotoxic iodinated contrast media. Enhanced MR angiography (MRA) could not replace CTA in the wake of NSF issues. Purpose: to assess the feasibility of non-contrast MRA using 3D PC-VIPR in depicting the renal artery after renal transplantation. Method: Consecutive seven living donors ( male, female, median age of ) underwent CTA on 64 detector row scanner before the transplantation, and seven recepients underwent MRA including 3D PC-VIPR , using a 3 Tesla system after the transplantation. 5-segments (i.e.,main stem and 1st to 4th order of brances) were assessed by two independent readers.Result: the evaluations by 2 observers for segment 1 to 5 were as follows : observer 1: 100%, 100%, 89%, 75%, 66%; observer 2: 100%, 100%, 90%, 80%, 71%.κstatistic (κ＝ 0.731（z=7.73373, P＜0.0001）) Conclusion: Non-enhanced renal artery depiction is feasible with 3D PC-VIPR with comparable delineations to CTA up to secondary brances with excellent inter-observer agreements.