本文選題：肺栓塞 + 體層攝影術(shù)�。� 參考：《中國醫(yī)學(xué)影像學(xué)雜志》2016年01期

【摘要】：目的比較能譜CT肺動(dòng)脈造影(CTPA)團(tuán)注測(cè)試法單能量圖像與透視觸發(fā)法常規(guī)的圖像質(zhì)量,以降低機(jī)體總碘攝入并優(yōu)化圖像質(zhì)量。資料與方法 68例接受CTPA檢查的患者隨機(jī)分為研究組和常規(guī)組,每組34例。研究組行GSI能譜掃描,使用造影劑歐乃派克(300 mg I/ml)30 ml,使用隨機(jī)軟件計(jì)算最佳ke V的單能量圖像。常規(guī)組行透視觸發(fā)掃描,使用造影劑碘普羅胺(370 mg I/ml)80 ml,所得圖像為混合能量圖像。比較兩組患者主肺動(dòng)脈、左肺動(dòng)脈干、右肺動(dòng)脈干、左肺下動(dòng)脈及右肺下動(dòng)脈CT值,比較兩組圖像的對(duì)比噪聲比與圖像質(zhì)量主觀評(píng)分。結(jié)果研究組總碘攝入量(9000 mg)顯著低于常規(guī)組(29 600 mg)。研究組主肺動(dòng)脈、左肺動(dòng)脈、右肺動(dòng)脈、左下肺動(dòng)脈、右下肺動(dòng)脈的對(duì)比噪聲比均高于常規(guī)組,差異均有統(tǒng)計(jì)學(xué)意義(t=2.07~2.71,P0.05)。2名醫(yī)師評(píng)價(jià)圖片的結(jié)果一致性較好(Kappa=0.8,P0.05)。研究組圖像主觀評(píng)分高于常規(guī)組,但差異無統(tǒng)計(jì)學(xué)意義(Z=-0.944,P0.05)。結(jié)論團(tuán)注測(cè)試法與能譜CT單能量圖像結(jié)合可顯著降低機(jī)體碘攝入并優(yōu)化圖像質(zhì)量。
[Abstract]:Objective to compare the image quality of single energy injection test with conventional fluoroscopic trigger method in order to reduce the total iodine intake and optimize the image quality. Materials and methods 68 patients with CTPA were randomly divided into study group and routine group with 34 cases in each group. The study group was scanned with GSI energy spectrum, using the contrast agent Oenopectin 300mg I/ml)30 ml, and using random software to calculate the best single energy image of keV. The routine fluoroscopic trigger scan was performed with 370mg I/ml)80 ml of iopramide, and the images were mixed energy images. The CT values of main pulmonary artery, left pulmonary artery trunk, right pulmonary artery trunk, left inferior pulmonary artery and right inferior pulmonary artery were compared between the two groups. Results the total iodine intake of the study group was significantly lower than that of the control group (29600 mg / g). The contrast noise ratio of the main pulmonary artery, left pulmonary artery, right pulmonary artery, left inferior pulmonary artery and right inferior pulmonary artery in the study group was higher than that in the control group, and the difference was statistically significant. The subjective score of image in the study group was higher than that in the routine group, but the difference was not statistically significant (P 0.05). Conclusion the combination of cluster injection test and energy dispersive CT single energy image can significantly reduce iodine intake and optimize image quality.
【作者單位】： 安徽省腫瘤醫(yī)院醫(yī)學(xué)影像科;
【分類號(hào)】：R563.5;R816.41

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