放射学实践
放射學實踐
방사학실천
RADIOLOGIC PRACTICE
2014年
9期
1035-1038
,共4页
曾宪春%付隽%韩丹%康绍磊%王勇
曾憲春%付雋%韓丹%康紹磊%王勇
증헌춘%부준%한단%강소뢰%왕용
眼眶%体层摄影术,X 线计算机%辐射剂量
眼眶%體層攝影術,X 線計算機%輻射劑量
안광%체층섭영술,X 선계산궤%복사제량
Orbit%Tomography,X-ray computed%Radiation dosage
_目的：探讨自动管电流调节（CARE Dose 4D）联合智能最佳 kV（CARE kV）技术在眼眶 CT 检查中的临床应用价值。方法：将行眼眶 CT 检查的70例患者分为两组，A 组（35例）采用 CARE Dose 4D 扫描技术，B 组（35例）采用CARE kV 联合 CARE Dose 4D 扫描技术。比较 A、B 两组图像质量（平均 CT 值、噪声 SD、SNR、CNR、图像质量主观评分）、患者所接受的辐射剂量及病变检出率。结果：A、B 两组辐射剂量差异有统计学意义（P＜0．05），B 组[（0．59±1．55）mSv]较 A 组[（0．71±1．84）mSv]ED 较少约15．9％。两组平均 CT 值、噪声 SD、SNR、CNR、图像质量评分及病变检出率差异均无统计学意义（P＞0．05）。结论：联合 CARE kV 与 CARE Dose 4D 技术行眼眶 CT 扫描，在保证图像质量的同时，可有效降低辐射剂量。
_目的：探討自動管電流調節（CARE Dose 4D）聯閤智能最佳 kV（CARE kV）技術在眼眶 CT 檢查中的臨床應用價值。方法：將行眼眶 CT 檢查的70例患者分為兩組，A 組（35例）採用 CARE Dose 4D 掃描技術，B 組（35例）採用CARE kV 聯閤 CARE Dose 4D 掃描技術。比較 A、B 兩組圖像質量（平均 CT 值、譟聲 SD、SNR、CNR、圖像質量主觀評分）、患者所接受的輻射劑量及病變檢齣率。結果：A、B 兩組輻射劑量差異有統計學意義（P＜0．05），B 組[（0．59±1．55）mSv]較 A 組[（0．71±1．84）mSv]ED 較少約15．9％。兩組平均 CT 值、譟聲 SD、SNR、CNR、圖像質量評分及病變檢齣率差異均無統計學意義（P＞0．05）。結論：聯閤 CARE kV 與 CARE Dose 4D 技術行眼眶 CT 掃描，在保證圖像質量的同時，可有效降低輻射劑量。
_목적：탐토자동관전류조절（CARE Dose 4D）연합지능최가 kV（CARE kV）기술재안광 CT 검사중적림상응용개치。방법：장행안광 CT 검사적70례환자분위량조，A 조（35례）채용 CARE Dose 4D 소묘기술，B 조（35례）채용CARE kV 연합 CARE Dose 4D 소묘기술。비교 A、B 량조도상질량（평균 CT 치、조성 SD、SNR、CNR、도상질량주관평분）、환자소접수적복사제량급병변검출솔。결과：A、B 량조복사제량차이유통계학의의（P＜0．05），B 조[（0．59±1．55）mSv]교 A 조[（0．71±1．84）mSv]ED 교소약15．9％。량조평균 CT 치、조성 SD、SNR、CNR、도상질량평분급병변검출솔차이균무통계학의의（P＞0．05）。결론：연합 CARE kV 여 CARE Dose 4D 기술행안광 CT 소묘，재보증도상질량적동시，가유효강저복사제량。
To explore the clinical application value of CARE Dose 4D (tube current regulation technique) combined with CARE kV (the smart kV scanning technology)in orbital CT scan,expecting to reduce the radiation dose. Methods:70 patients underwent plain orbital CT scan,they were randomly divided into two groups according to chronologi-cal sequence.In group A (n=35 cases),applied CARE Dose 4D technique was used only;In group B (n=35 cases),applied both CARE Dose 4D and CARE kV technique was used.Comparison of radiation dose and image quality (based on average CT values,Noise SD,SNR,CNR and quality score)between the two groups were made.Results:The difference of radiation dose between the two groups was statistically significant (P<0.05);ED of group B was less than those of group A by a-round 16.9%.There were no significant differences between the two groups in average CT values,SD,SNR and CNR (P>0.05);Also the image quality score and lesion detection rate demonstrated no significant difference among the two groups. Conclusion:On the premise of obtaining good quality of image for diagnosis,CARE kV combined with CARE Dose 4D tech-nology can be applied in orbital CT scan,which will reduce about 15.9% radiation dose.
