【摘要】：目的探討低碘流率多層螺旋CT(MSCT)冠狀動(dòng)脈造影對(duì)斑塊診斷的價(jià)值。方法收集2013年6月—2014年12月深圳市第四(福田)人民醫(yī)院行低碘流率MSCT冠狀動(dòng)脈造影的冠心病患者30例為低碘流率組,另選擇同時(shí)期行正常碘流率MSCT冠狀動(dòng)脈造影的冠心病患者30例為對(duì)照組,在相同掃描條件及對(duì)比劑濃度下,分別用1 480 mg I/s及1 850 mg I/s碘流率(注射流率分別為4 ml/s及5 ml/s)進(jìn)行檢查,利用工作站軟件進(jìn)行后處理圖像,比較兩組圖像質(zhì)量及斑塊指標(biāo)、對(duì)比劑總量、注射時(shí)間。結(jié)果對(duì)照組與低碘流率組信號(hào)-噪音比(SNR)、對(duì)比噪音比(CNR)、圖像質(zhì)量、圖像銳利程度、斑塊面積(PA)、斑塊負(fù)荷(PB)、斑塊偏心指數(shù)、狹窄程度(SD)比較,差異均無統(tǒng)計(jì)學(xué)意義(P0.05)。對(duì)照組對(duì)比劑總量為(68.5±4.9)ml,低碘流率組對(duì)比劑總量為(56.8±6.3)ml,兩組比較差異有統(tǒng)計(jì)學(xué)意義(t=8.067,P0.001)。對(duì)照組注射時(shí)間為(14.4±1.5)s,低碘流率組注射時(shí)間為(14.0±0.9)s,兩組比較差異無統(tǒng)計(jì)學(xué)意義(t=1.282,P=0.205)。結(jié)論使用低碘流率進(jìn)行MSCT冠狀動(dòng)脈造影,不僅可以達(dá)到診斷要求的圖像質(zhì)量,還可以減少對(duì)比劑使用,減少對(duì)比劑腎病等不良反應(yīng)的發(fā)生,具有一定的臨床應(yīng)用價(jià)值。
[Abstract]:Objective to evaluate the value of low iodine flow rate multi-slice spiral CT (MSCT) coronary angiography in the diagnosis of plaques. Methods from June 2013 to December 2014, 30 patients with coronary heart disease who underwent low iodine flow rate MSCT coronary angiography in Shenzhen fourth (Futian) people's Hospital were enrolled in the low iodine flow rate group. In addition, 30 patients with coronary heart disease who underwent normal iodine flow rate MSCT coronary angiography at the same time were selected as the control group under the same scanning conditions and contrast agent concentration. The iodine flow rates of 1 480 mg I 鈮，

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