实用放射学杂志
實用放射學雜誌
실용방사학잡지
JOURNAL OF PRACTICAL RADIOLOGY
2014年
12期
1989-1992
,共4页
霍蛟%姚果林%高艳妮%裘晟%王飞%杨欢%张静%杨俊雅%陈向飞%杨小军%姚晓群%杨广夫
霍蛟%姚果林%高豔妮%裘晟%王飛%楊歡%張靜%楊俊雅%陳嚮飛%楊小軍%姚曉群%楊廣伕
곽교%요과림%고염니%구성%왕비%양환%장정%양준아%진향비%양소군%요효군%양엄부
冠状动脉%计算机体层成像%前瞻性心电门控%回顾性心电门控%射线剂量
冠狀動脈%計算機體層成像%前瞻性心電門控%迴顧性心電門控%射線劑量
관상동맥%계산궤체층성상%전첨성심전문공%회고성심전문공%사선제량
the coronary artery%computed tomograply%prospective electrocardiography gated%retrospective electrocardiography gated%radiation dose
目的：研究256层冠状动脉 CT 成像在肥胖患者的应用。方法回顾性分析2011-2013在本院进行冠状动脉 CT 成像的166例肥胖患者(体质量指数 BMI≥30)临床和影像资料(166例中前瞻性心电门控扫描109例,回顾性心电门控扫描57例)。将冠状动脉成像图像分为优、良、可、差4等级,由2位医生独立观察 CT 冠状动脉图像质量。使用χ2或 t 检验比较分析不同门控方法、不同心率(≤70次/min、>71次/min)、不同 kV 值(120 kV、140 kV)对图像质量的影响。结果前瞻性心电门控和回顾性心电门控在显示优秀图像、合格图像(优+良图像)方面无显著性差异(P >0.05)。前瞻性心电门控在心率≤70次/min 组显示优秀图像优于心率>71次/min 组(P <0.05),显示合格图像无显著性差异(P >0.05)。回顾性心电门控不同心率组对显示优秀图像、合格图像方面无显著性差异(P >0.05)。前瞻性心电门控和回顾性心电门控在120 kV、140 kV 组内对显示成像质量均无显著性差异(P >0.05)。前瞻性心电门控扫描患者接受射线剂量明显低于回顾性心电门控扫描。结论肥胖患者冠状动脉256层 CT 成像检查应采用前瞻性心电门控扫描,应维持患者心率≤70次/min,采用120 kV 扫描,降低患者接受射线剂量。
目的：研究256層冠狀動脈 CT 成像在肥胖患者的應用。方法迴顧性分析2011-2013在本院進行冠狀動脈 CT 成像的166例肥胖患者(體質量指數 BMI≥30)臨床和影像資料(166例中前瞻性心電門控掃描109例,迴顧性心電門控掃描57例)。將冠狀動脈成像圖像分為優、良、可、差4等級,由2位醫生獨立觀察 CT 冠狀動脈圖像質量。使用χ2或 t 檢驗比較分析不同門控方法、不同心率(≤70次/min、>71次/min)、不同 kV 值(120 kV、140 kV)對圖像質量的影響。結果前瞻性心電門控和迴顧性心電門控在顯示優秀圖像、閤格圖像(優+良圖像)方麵無顯著性差異(P >0.05)。前瞻性心電門控在心率≤70次/min 組顯示優秀圖像優于心率>71次/min 組(P <0.05),顯示閤格圖像無顯著性差異(P >0.05)。迴顧性心電門控不同心率組對顯示優秀圖像、閤格圖像方麵無顯著性差異(P >0.05)。前瞻性心電門控和迴顧性心電門控在120 kV、140 kV 組內對顯示成像質量均無顯著性差異(P >0.05)。前瞻性心電門控掃描患者接受射線劑量明顯低于迴顧性心電門控掃描。結論肥胖患者冠狀動脈256層 CT 成像檢查應採用前瞻性心電門控掃描,應維持患者心率≤70次/min,採用120 kV 掃描,降低患者接受射線劑量。
목적：연구256층관상동맥 CT 성상재비반환자적응용。방법회고성분석2011-2013재본원진행관상동맥 CT 성상적166례비반환자(체질량지수 BMI≥30)림상화영상자료(166례중전첨성심전문공소묘109례,회고성심전문공소묘57례)。장관상동맥성상도상분위우、량、가、차4등급,유2위의생독립관찰 CT 관상동맥도상질량。사용χ2혹 t 검험비교분석불동문공방법、불동심솔(≤70차/min、>71차/min)、불동 kV 치(120 kV、140 kV)대도상질량적영향。결과전첨성심전문공화회고성심전문공재현시우수도상、합격도상(우+량도상)방면무현저성차이(P >0.05)。전첨성심전문공재심솔≤70차/min 조현시우수도상우우심솔>71차/min 조(P <0.05),현시합격도상무현저성차이(P >0.05)。회고성심전문공불동심솔조대현시우수도상、합격도상방면무현저성차이(P >0.05)。전첨성심전문공화회고성심전문공재120 kV、140 kV 조내대현시성상질량균무현저성차이(P >0.05)。전첨성심전문공소묘환자접수사선제량명현저우회고성심전문공소묘。결론비반환자관상동맥256층 CT 성상검사응채용전첨성심전문공소묘,응유지환자심솔≤70차/min,채용120 kV 소묘,강저환자접수사선제량。
Objective To study the application of 256-slice coronary CT angiography in the obesity patient.Methods Clinical and image date of 1 66 obesity cases (BIM≥30)from 201 1 to 2013 in our hospital were retrospectively analysed.Among the 1 66 cases, prospective and retrospective electrocardiography gated group accounted for 109,57 respectively.According to the coronary CT an-giographic findings,image qualities were divided into four grades (the best,better,good and bad),by the two radiologists independ-ently observation.The image qualities under different electrocardiography gated,different heart rate(≤70 beats per minute and >71 beats per minute)and different kV (120 kV and 140 kV)were statistictally compared with student χ2 test.Results there was no sig-nificant different on displaying the best or the best+better images for prospective and retrospective electrocardiography gated 256-slice coronary CT angiography(P > 0.05 ).On prospective electrocardiography gated coronary CT angiography,the image quality demonstrating the best image was more superior for ≤70 beats per minute group to >71 beats per minute group (P <0.05 ),but significant different did not found for demonstraling the best+better image group(P >0.05 ).On retrospective electrocardiogrphy gated coronary CT angiography,there was no obvious different on demonstrating the image quality for different heart rate groups (P>0.05).There were no signifcicant different on demonstraling the image quality by using different kV value (120 kV and 140 kV) for both different elecrtrocardiography gated coronary CT angiographic groups(P >0.05).The radiation dose for prospective electro-cardiogphy gated group was lower than that of retrospective electrocardiography gated group.Conclusion For 256-slice coronary CT angiography in the obesity patient,prospective electocardigraphy gated scan must be the first choice,contol the patient heart rate un-der 70 beats per minute and use 120 kV scan,in order to decrease the radiation dose.
