Abstract Objective: To investigate the influence of median cubital vein and dorsal venous puncture point on renal artery magnetic resonance imaging.Method:32 patients on renal artery magnetic resonance imaging treated from June 2013 to November 2014 in our hospital were selected and randomly divided into two groups,respectively chosen median cubital vein and dorsal vein as the puncture point to proceed renal artery magnetic resonance imaging,the Test Bolus was used to monitor two groups of renal artery imaging peak time,Cor Cemra FT sequence was chosen for renal artery imaging to evaluate the vascular signal strength of the two sets of image,signal to noise ratio(SNR) and image contrast to noise ratio(CNR)and reconstruction of vascular score.Result:All of the 32 cases completed the inspection,two groups of peak time delay,respectively:median cubital vein point was(24±3.4)s,the dorsal vein of foot point was(45±5.1)s,the differences were significant(P<0.05).There were totally 67 renal arteries imaging,12 cases of renal artery were normal,21 cases were stenosis,and 1 artery was totally occlusion.Two groups of signal intensity at the renal arteries openings were(751.25±14.2),(738.98±31.3);SNR were(73.11±4.5),(71.96±9.5);CNR were(41.74±9.3),(40.24±12.6),there was no statistical difference(P>0.05).Reconstruction of renal artery both reached the requirement of diagnosis,with no difference between the two groups.Conclusion:When the median cubital vein upper limb venous puncture failure,dorsal vein can be optional to meet the clinical demand at renal artery magnetic resonance imaging.
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