临床荟萃
臨床薈萃
림상회췌
CLINICAL FOCUS
2014年
9期
1008-1011
,共4页
陈伟彬%冯莉%宫凤玲%张惠英
陳偉彬%馮莉%宮鳳玲%張惠英
진위빈%풍리%궁봉령%장혜영
肾动脉%血管造影术%图像处理%体层摄影,X 线计算机
腎動脈%血管造影術%圖像處理%體層攝影,X 線計算機
신동맥%혈관조영술%도상처리%체층섭영,X 선계산궤
renal artery%angiography%image processing%tomography,X-ray computed
目的：探讨优化对比剂注射技术在256排螺旋 CT 血管造影（CTA）中对主肾动脉及肾段动脉图像质量的影响。方法选取行肾动脉 CTA 检查的98例体质量相近的患者，将其随机分为 A 组和 B 组，应用的对比剂为碘普罗胺（370 mg/ml）。A 组50例：根据患者体质量选择对比剂用量（1．0 ml/kg）；B 组48例：对比剂用量在 A 组用量基础上减去10 ml。以 CT 原始横断位图像为基础，结合容积再现（VR）、最大密度投影（MIP）等重建图像对两组各级肾动脉图像质量及对比剂用量进行统计学分析。结果 A 组50例患者：共显示肾动脉100条；B 组48例患者：共显示肾动脉96条。两组主肾动脉及各肾段分支显示清晰，两者比较差异无统计学意义（P ＞0．05）。两组图像质量评分分别为（4．937±0．177）分和（4．565±0．189）分，两者比较差异无统计学意义（P ＞0．05）。对比剂用量分别为（68．76±8．17）ml 和（58．27±6．48）ml，差异有统计学意义（P ＜0．05）。结论256排螺旋 CT 血管造影在肾动脉造影中，与依据患者体质量选择对比剂用量比较，在此基础上再减少10 ml 的优化对比剂注射技术亦能清晰显示肾段动脉，获得满足诊断要求的图像，从而为临床诊断肾段动脉狭窄和了解肾肿瘤分支血供提供了重要的信息。
目的：探討優化對比劑註射技術在256排螺鏇 CT 血管造影（CTA）中對主腎動脈及腎段動脈圖像質量的影響。方法選取行腎動脈 CTA 檢查的98例體質量相近的患者，將其隨機分為 A 組和 B 組，應用的對比劑為碘普囉胺（370 mg/ml）。A 組50例：根據患者體質量選擇對比劑用量（1．0 ml/kg）；B 組48例：對比劑用量在 A 組用量基礎上減去10 ml。以 CT 原始橫斷位圖像為基礎，結閤容積再現（VR）、最大密度投影（MIP）等重建圖像對兩組各級腎動脈圖像質量及對比劑用量進行統計學分析。結果 A 組50例患者：共顯示腎動脈100條；B 組48例患者：共顯示腎動脈96條。兩組主腎動脈及各腎段分支顯示清晰，兩者比較差異無統計學意義（P ＞0．05）。兩組圖像質量評分分彆為（4．937±0．177）分和（4．565±0．189）分，兩者比較差異無統計學意義（P ＞0．05）。對比劑用量分彆為（68．76±8．17）ml 和（58．27±6．48）ml，差異有統計學意義（P ＜0．05）。結論256排螺鏇 CT 血管造影在腎動脈造影中，與依據患者體質量選擇對比劑用量比較，在此基礎上再減少10 ml 的優化對比劑註射技術亦能清晰顯示腎段動脈，穫得滿足診斷要求的圖像，從而為臨床診斷腎段動脈狹窄和瞭解腎腫瘤分支血供提供瞭重要的信息。
목적：탐토우화대비제주사기술재256배라선 CT 혈관조영（CTA）중대주신동맥급신단동맥도상질량적영향。방법선취행신동맥 CTA 검사적98례체질량상근적환자，장기수궤분위 A 조화 B 조，응용적대비제위전보라알（370 mg/ml）。A 조50례：근거환자체질량선택대비제용량（1．0 ml/kg）；B 조48례：대비제용량재 A 조용량기출상감거10 ml。이 CT 원시횡단위도상위기출，결합용적재현（VR）、최대밀도투영（MIP）등중건도상대량조각급신동맥도상질량급대비제용량진행통계학분석。결과 A 조50례환자：공현시신동맥100조；B 조48례환자：공현시신동맥96조。량조주신동맥급각신단분지현시청석，량자비교차이무통계학의의（P ＞0．05）。량조도상질량평분분별위（4．937±0．177）분화（4．565±0．189）분，량자비교차이무통계학의의（P ＞0．05）。대비제용량분별위（68．76±8．17）ml 화（58．27±6．48）ml，차이유통계학의의（P ＜0．05）。결론256배라선 CT 혈관조영재신동맥조영중，여의거환자체질량선택대비제용량비교，재차기출상재감소10 ml 적우화대비제주사기술역능청석현시신단동맥，획득만족진단요구적도상，종이위림상진단신단동맥협착화료해신종류분지혈공제공료중요적신식。
Objective To discuss the image quality of the main renal artery and renal branch on optimization injection contrast agent in 256 slice spiral CT angiography(CTA).Methods The study enrolled 98 patients in similar body mass who took the renal artery CT angiography,and they were randomly divided into A group and B group. Ultravist solution(370 mg/ml)was used as contrast media.In A group,50 cases according to patients’body mass choose contrast agent (1.0 ml/kg),in group B,there were 48 cases:the contrast media dose was subtracted 10 ml on the basis of group A.Based on the original CT transverse image,and combined with VR,MIP reconstruction images of two groups were analyzed in renal artery image quality and contrast agent for statistical analysis.Results In A group, 100 renal arteries were shown in 50 patients,in B group,96 renal arteries were shown in 48 patients.The main renal artery and branch were clearly displayed,there were no statistical significance between them(P > 0.05).The image quality scores of the two groups were (4.937±0.177)marks and (4.565 ±0.189)marks,there were no significant difference between them(P >0.05).The dose of contrast medium was (68.76 ±8.17)ml and (58.27 ± 6.48)ml, there were statistical significance between them (P <0.05).Conclusion In the renal artery angiography with 256 slice spival CT,compared with the dose tailored to patients′ body mass injection protocol,the contrast media dose which was subtracted 10 ml on that basis injection protocol can provide satisfactory quality,and can provide important information for clinical diagnosis of renal artery stenosis and understanding the branch blood of renal tumor.
