中国医药
中國醫藥
중국의약
CHINA MEDICINE
2015年
6期
888-891
,共4页
腰椎间盘%体重指数%腰围%辐射剂量%体层摄影术,X线计算机
腰椎間盤%體重指數%腰圍%輻射劑量%體層攝影術,X線計算機
요추간반%체중지수%요위%복사제량%체층섭영술,X선계산궤
Lumbar intervertebral disc%Body mass index%Waist circumference%Radiation dose%Tomography,X-ray computed
目的 探讨腰椎间盘低剂量CT轴位扫描的临床意义及图像质量与受检者自身因素的相关性.方法 抽取福建中医药大学附属漳州市中医院放射科2013年5月至2014年5月行腰椎间盘CT检查的患者105例,在其他参数均相同的情况下进行常规剂量(270 mA)和低剂量(180 mA、135 mA)扫描,比较应用2种不同低剂量扫描所得图像与常规剂量所得图像质量的差异,以及发现椎间盘病变的差异.对图像质量与受检者性别、年龄、体质量、身高、腰围、体重指数相关性进行统计学分析.结果 2种不同低剂量CT扫描所得图像与常规剂量所得图像质量评分差异均有统计学意义[L3-4:(3.8±0.7)、(3.3±0.8)分比(4.2±0.6)分;L4～5:(3.6±0.9)、(3.2±0.9)分比(4.3±0.7)分;L5～S1:(3.9±0.7)、(3.3±0.8)分比(4.4±0.6)分](P＜0.05).2种不同低剂量CT图像发现椎间盘病变数目与常规剂量CT图像间差异无统计学意义(P＞0.05).管电流180和135 mA扫描辐射剂量较管电流270 mA扫描降低36.5％、54.0％.管电流270、180和135 mA CT图像中,腰围与图像质量评分相关性最强(r=-0.267、-0.427、-0.398,P＜0.01),其次依次为体重指数、年龄及体质量(P＜0.01),而性别及身高与之无相关性(P＞0.05).结论 腰椎间盘CT个体化低剂量轴向扫描技术可大幅度降低受检者辐射剂量,但不影响病变检出能力.
目的 探討腰椎間盤低劑量CT軸位掃描的臨床意義及圖像質量與受檢者自身因素的相關性.方法 抽取福建中醫藥大學附屬漳州市中醫院放射科2013年5月至2014年5月行腰椎間盤CT檢查的患者105例,在其他參數均相同的情況下進行常規劑量(270 mA)和低劑量(180 mA、135 mA)掃描,比較應用2種不同低劑量掃描所得圖像與常規劑量所得圖像質量的差異,以及髮現椎間盤病變的差異.對圖像質量與受檢者性彆、年齡、體質量、身高、腰圍、體重指數相關性進行統計學分析.結果 2種不同低劑量CT掃描所得圖像與常規劑量所得圖像質量評分差異均有統計學意義[L3-4:(3.8±0.7)、(3.3±0.8)分比(4.2±0.6)分;L4～5:(3.6±0.9)、(3.2±0.9)分比(4.3±0.7)分;L5～S1:(3.9±0.7)、(3.3±0.8)分比(4.4±0.6)分](P＜0.05).2種不同低劑量CT圖像髮現椎間盤病變數目與常規劑量CT圖像間差異無統計學意義(P＞0.05).管電流180和135 mA掃描輻射劑量較管電流270 mA掃描降低36.5％、54.0％.管電流270、180和135 mA CT圖像中,腰圍與圖像質量評分相關性最彊(r=-0.267、-0.427、-0.398,P＜0.01),其次依次為體重指數、年齡及體質量(P＜0.01),而性彆及身高與之無相關性(P＞0.05).結論 腰椎間盤CT箇體化低劑量軸嚮掃描技術可大幅度降低受檢者輻射劑量,但不影響病變檢齣能力.
목적 탐토요추간반저제량CT축위소묘적림상의의급도상질량여수검자자신인소적상관성.방법 추취복건중의약대학부속장주시중의원방사과2013년5월지2014년5월행요추간반CT검사적환자105례,재기타삼수균상동적정황하진행상규제량(270 mA)화저제량(180 mA、135 mA)소묘,비교응용2충불동저제량소묘소득도상여상규제량소득도상질량적차이,이급발현추간반병변적차이.대도상질량여수검자성별、년령、체질량、신고、요위、체중지수상관성진행통계학분석.결과 2충불동저제량CT소묘소득도상여상규제량소득도상질량평분차이균유통계학의의[L3-4:(3.8±0.7)、(3.3±0.8)분비(4.2±0.6)분;L4～5:(3.6±0.9)、(3.2±0.9)분비(4.3±0.7)분;L5～S1:(3.9±0.7)、(3.3±0.8)분비(4.4±0.6)분](P＜0.05).2충불동저제량CT도상발현추간반병변수목여상규제량CT도상간차이무통계학의의(P＞0.05).관전류180화135 mA소묘복사제량교관전류270 mA소묘강저36.5％、54.0％.관전류270、180화135 mA CT도상중,요위여도상질량평분상관성최강(r=-0.267、-0.427、-0.398,P＜0.01),기차의차위체중지수、년령급체질량(P＜0.01),이성별급신고여지무상관성(P＞0.05).결론 요추간반CT개체화저제량축향소묘기술가대폭도강저수검자복사제량,단불영향병변검출능력.
Objective To discuss the clinical significance of axial CT scanning of lumbar intervertebral disc with low radiation dose,and to analyze image quality.Methods Totally 105 patients with lumbar intervertebral disc diseases were enrolled and underwent multi-slice spiral CT scanning with standard dose (tube current 270 mA) and low dose (tube current 180 mA,135 mA);the image quality and detection of lesions were compared.The correlation between image quality and general,age,body weight,height,waist circumference and body mass index (BMI) were evaluated.Results The image quality score was statistically different between low-dose CT scan and standard dose CT scan [L3-4:(3.8 ± 0.7),(3.3 ± 0.8) scores vs (4.2 ± 0.6) scores;L4-5:(3.6 ± 0.9),(3.2 ± 0.9) scores vs (4.3 ± 0.7) scores;L5-S1:(3.9 ± 0.7),(3.3 ± 0.8) scores vs (4.4 ± 0.6) scores] (all P ＜ 0.05).However,there was not statistical difference in detection of lesions between low-dose CT scan and standard dose CT scan (both P ＞ 0.05).Compared with standard dose CT scan,the dose length product was decreased by 36.5％ and 54.0％ of in low-dose CT scan with tube current of 180 mA and 135 mA,respectively.In CT scan with tube current of 270 mA,180 mA and 135 mA,the image quality was the most strongly correlated with waist circumference (r =-0.267,-0.427,-0.398,P ＜ 0.01),followed by BMI,age and body weight,but it was not correlated with gender and height.Conclusion Low dose individual axial CT scan of lumbar intervertebral disc can greatly reduce the radiation dose without reducing the ability of detecting lesions.
