分离团注单期成像技术在MSCT泌尿系成像中的应用价值  

The application value of separate bolus injection in single phase imaging technique in MSCT urinary system imaging

作　　者：潘为领 李霞[1] 陈黎丽 PAN Weiling;LI Xia;CHEN Lili(Department of Radiology, 960 Hospital of PLA, Zibo 255300, P.R.China)

机构地区：[1]中国人民解放军第九六O医院淄博院区CT室,山东淄博255300

出　　处：《医学影像学杂志》2021年第1期67-71,共5页Journal of Medical Imaging

摘　　要：目的探讨分离团注单期成像技术在MSCT泌尿系疾病检查中的可行性及临床应用价值。方法选取我院临床资料完整的泌尿系疾病患者60例,按不同扫描方法分为A、B两组各30例,A组采用常规平扫、皮质期(20~30 s)、髓质期(55~60 s)、排泄期(5~15 min)扫描;B组采用平扫、分离团注一次扫描;应用VR、MIP、MPR、CPR多种后处理技术重建图像。结果60例中,肾盂和输尿管结石20例,先天畸形16例,输尿管炎性病变5例,肾盂旁囊肿8例,肾挫裂伤2例,泌尿系肿瘤9例;肾血管对比剂浓度:A组:肾动脉(282±50)HU,肾静脉(126±28)HU;B组:肾动脉(256±39)HU,肾静脉(185±27)HU;两组肾动脉CT值差异无统计学意义(P>0.05),肾静脉CT值差异有统计学意义(P<0.001),两组尿路成像(CTU)图像质量无明显差异。结论MSCT泌尿系成像中,采用分离团注单期成像技术所获得图像能清晰显示泌尿系病变,同时观察肾动脉、肾静脉、评价肾功能,比常规扫描减少了48%的辐射剂量,具有可靠的临床应用价值。Objective To investigate the feasibility and clinical application value of separate bolus injection in single phase imaging technique in the examination of MSCT urinary system disease.Methods Nearly 2-year complete clinical data of 60 patients with urinary system diseases were enrolled.They were divided into groups A,B according to two different scanning methods,each group included 30 cases.Group A was treated with conventional plain scan,cortical phase(20~30 s),medulla period(55~60 s)and excretory phase(5~15 min)scan.Group B used flat scan and separate bolus injection in single phase scan;VR,MIP,MPR and CPR multiple post-processing techniques were used to reconstruct images.Results In 60 cases,there were 20 of renal pelvis and ureteral calculus,16 of congenital malformation,5 of ureteral inflammatory disease,8 of parapelvic cyst,2 of renal trauma,and 9 of urinary system of tumor.The comparison of renal intravascular contrast agent concentration was as follows Group A was renal artery(282±50)HU,renal vein(126±28)HU;Group B was renal artery(256±39)HU,renal vein(185±27)HU.There was no significant difference in CT values of renal artery between the two groups(P>0.05).The CT value of renal vein showed statistically significant difference(P<0.001).There was no significant difference in the urinary tract imaging between the two groups.Conclusion In MSCT urinary system imaging,images obtained by separate bolus injection in single phase imaging technique can show the lesions of the urinary system clearly,while,observing the renal artery,renal vein,evaluating renal function,reducing 48%of radiation dose compared with conventional scanning,and having reliable clinical application value.

关 键 词：尿路成像术 分离团注单期成像技术 体层摄影术 X线计算机 

分 类 号：R691[医药卫生—泌尿科学] R814.42[医药卫生—外科学]