CT三期动态增强扫描对急性肾梗死的诊断价值  

Diagnostic value of tri-phase dynamic enhancement scan with CT for acute renal infarction

作　　者：禹智波[1] 张云泉[1] 宋凌恒[1] 乔清[1] 李福锁[1] 黄敏[1] 胡文友[1] 李锦青[1] 

机构地区：[1]解放军第324医院医学影像科,重庆400020

出　　处：《局解手术学杂志》2015年第5期486-489,共4页Journal of Regional Anatomy and Operative Surgery

摘　　要：目的探讨急性肾梗死CT三期动态增强扫描影像学特点及临床意义。方法回顾性分析10例临床影像确诊急性肾梗死患者19侧肾脏CT平扫、三期动态增强表现及6例CTA(CT血管造影术)表现。结果 10例患者14侧肾脏发生急性肾梗死。CT平扫:4例肾脏影增大,6例双侧肾脏CT平扫未见异常。CT三期动态增强扫描:单侧肾梗死6例、双侧肾梗死4例,共累及14侧肾脏;肾梗死灶在皮质期呈为高密度皮质环中断,在实质期及肾盂期呈楔形无强化低密度影,或全肾无强化低密度影,以实质期和肾盂期显示肾梗死灶最佳。6例CTA明确肾梗死责任肾血管,以及伴发的其他血管性病变。结论 CT三期动态增强扫描对急性肾梗死有重要诊断价值,CTA能明确肾梗死责任肾血管。Objective To investigate the imaging characteristics and diagnostic value of tri-phase dynamic enhancement scan with CT for acute renal infarction. Methods The image features of CT plain scan and tri-phase dynamic enhancement scan of 10 patients（ 19 sides）with acute renal infarction were retrospectively analyzed,and the CTA expression of 6 patients were observed. Results Fourteen acute renal infarction lesions of 10 cases were diagnosed. The CT scan showed there were 4 cases with enlargement of kidney,and the other 6 cases were of no abnormality. The tri-phase enhancement CT scan showed there were 6 cases of unilateral renal infarction and 4 cases of bilateral renal infarction,which totally involving 14 sides. The acute renal infarction lesions lacked of high density region in the corticomedullary in cortical phase,and there were wedge-shaped hypodense area,even low density of full kidney in parenchymal phase and pyelographic phase. The acute renal infarction lesions were revealed better in parenchymal phase and pyelographic phase than in cortical phase. Six cases of CTA revealed the responsible vessels of renal infarction lesions and the other vascular diseases. Conclusion CT tri-phase dynamic enhancement scan has important value in the diagnosis of acute renal infarction,and CTA can identify the responsible vessels of renal infarction lesions.

关 键 词：急性肾梗死 血管造影术 体层摄影术 X线计算机 

分 类 号：R814.42[医药卫生—影像医学与核医学]