中国医学创新
中國醫學創新
중국의학창신
MEDICAL INNOVATION OF CHINA
2014年
25期
24-26
,共3页
头颈部%自动跟踪%手动触发%计算机体层成像%血管成像
頭頸部%自動跟蹤%手動觸髮%計算機體層成像%血管成像
두경부%자동근종%수동촉발%계산궤체층성상%혈관성상
Head and neck%Automatic tracking%Manual trigger technology%Computer tomography%Angiography
目的：探讨自动跟踪与手动触发技术在Philips 64排螺旋CT对头颈联合CTA成像图像质量的影响。方法：将接受头颈联合CTA检查的100例患者按照随机数字表法分为A组和B组各50例。A组于监控层面主动脉弓层感兴趣区域CT值达阈值（阈值设定为90 HU）后自动跟踪智能触发扫描。B组在对比剂开始注射后观察监控层主动脉弓层对比剂的增强程度，当观察到对比剂开始进入监控层时按下手动按钮触发扫描。统计分析两组的图像质量、记录监控时间，剔除不成功及显示欠佳的图像，分别测量主动脉弓层、颈总动脉分叉下C5段、颈内动脉C1段、大脑中动脉的平均CT值。结果：B组的图像质量明显优于A组，差异有统计学意义（χ2=6.205，P=0.044）。B组的监控时间（13.32±1.63）s明显少于A组的（14.24±1.73）s，差异有统计学意义（P=0.007）。B组所测得的主动脉弓层平均CT值明显低于A组（P<0.05），两组的颈总动脉分叉下C5段、颈内动脉C1段、大脑中动脉的平均CT值比较差异均无统计学意义（P>0.05）。结论：手动触发技术比自动跟踪智能触发技术更易获得满足诊断要求的图像，更省时。
目的：探討自動跟蹤與手動觸髮技術在Philips 64排螺鏇CT對頭頸聯閤CTA成像圖像質量的影響。方法：將接受頭頸聯閤CTA檢查的100例患者按照隨機數字錶法分為A組和B組各50例。A組于鑑控層麵主動脈弓層感興趣區域CT值達閾值（閾值設定為90 HU）後自動跟蹤智能觸髮掃描。B組在對比劑開始註射後觀察鑑控層主動脈弓層對比劑的增彊程度，噹觀察到對比劑開始進入鑑控層時按下手動按鈕觸髮掃描。統計分析兩組的圖像質量、記錄鑑控時間，剔除不成功及顯示欠佳的圖像，分彆測量主動脈弓層、頸總動脈分扠下C5段、頸內動脈C1段、大腦中動脈的平均CT值。結果：B組的圖像質量明顯優于A組，差異有統計學意義（χ2=6.205，P=0.044）。B組的鑑控時間（13.32±1.63）s明顯少于A組的（14.24±1.73）s，差異有統計學意義（P=0.007）。B組所測得的主動脈弓層平均CT值明顯低于A組（P<0.05），兩組的頸總動脈分扠下C5段、頸內動脈C1段、大腦中動脈的平均CT值比較差異均無統計學意義（P>0.05）。結論：手動觸髮技術比自動跟蹤智能觸髮技術更易穫得滿足診斷要求的圖像，更省時。
목적：탐토자동근종여수동촉발기술재Philips 64배라선CT대두경연합CTA성상도상질량적영향。방법：장접수두경연합CTA검사적100례환자안조수궤수자표법분위A조화B조각50례。A조우감공층면주동맥궁층감흥취구역CT치체역치（역치설정위90 HU）후자동근종지능촉발소묘。B조재대비제개시주사후관찰감공층주동맥궁층대비제적증강정도，당관찰도대비제개시진입감공층시안하수동안뉴촉발소묘。통계분석량조적도상질량、기록감공시간，척제불성공급현시흠가적도상，분별측량주동맥궁층、경총동맥분차하C5단、경내동맥C1단、대뇌중동맥적평균CT치。결과：B조적도상질량명현우우A조，차이유통계학의의（χ2=6.205，P=0.044）。B조적감공시간（13.32±1.63）s명현소우A조적（14.24±1.73）s，차이유통계학의의（P=0.007）。B조소측득적주동맥궁층평균CT치명현저우A조（P<0.05），량조적경총동맥분차하C5단、경내동맥C1단、대뇌중동맥적평균CT치비교차이균무통계학의의（P>0.05）。결론：수동촉발기술비자동근종지능촉발기술경역획득만족진단요구적도상，경성시。
Objective:To investigate the effect of image quality between automatic tracking and manually trigger technology in head and neck 64-slice spiral CT angiography.Method:100 patients underwent CT head and neck angiography were randomly divided into the group A and the group B,50 cases in each group.Group A:when the mean CT value of region of interest(ROI) determined in the top of the aortic arch reached the threshold preset value(threshold 90 HU),the computer started a scanning automatically.Group B:after contrast injection,when the contrast appeared in the top of the aortic arch, the scan was started manually.Analyzed the image quality,recorded the time from contrast injection to scan, excluding the unsuccessful and poor display of images.The mean CT value of the top of the aortic arch,the C5 segment of the carotid bifurcation,the C1 segment of the internal carotid artery and middle cerebral artery were measured.Result:The image quality of group B was better than group A,the difference was statistically significant(χ2=6.205,P=0.044). The monitoring time in group B was (13.32±1.63)s,it was significantly less than (14.24±1.73)s in group A,the difference was statistically significant(P=0.007).The average CT value of aortic arch was significantly lower than the group A(P<0.05),there were no statistically significant differences in the mean CT value of the C5 segment of the carotid bifurcation,the C1 segment of the internal carotid artery and the middle cerebral artery(P>0.05).Conclusion:The satisfactory images can easier obtain using the manually trigger technology than automatic tracking,and save time.
