本文選題：喉疾病 + 體層攝影術(shù)�。� 參考：《中國(guó)臨床醫(yī)學(xué)影像雜志》2017年08期

【摘要】：目的:探討低輻射劑量聯(lián)合自適應(yīng)迭代重建技術(shù)(ASi R)在喉部CT成像中的臨床應(yīng)用價(jià)值。方法:220例患者的喉部CT掃描分為兩組:常規(guī)劑量濾波反投影重建組(FBP組)和低輻射劑量聯(lián)合ASiR50%重建組(ASi R50%組),每組各110例。所有重建圖像傳送至AW 4.6工作站進(jìn)行后處理,分別由3名影像醫(yī)師采用雙盲法對(duì)兩組影像質(zhì)量進(jìn)行評(píng)價(jià),采用t檢驗(yàn)對(duì)兩組輻射劑量及圖像質(zhì)量進(jìn)行比較。結(jié)果:ASiR50%組顯著降低了輻射劑量(P0.001),CTDIvol、DLP、Total DLP和m Sv的降低率分別為80.22%(6.65/8.29)、82.95%(78.61/94.77)、82.95%(157.23/189.54)和83.04%(0.93/1.12)。FBP與ASi R50%組圖像質(zhì)量顯示能力的比較差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論:低輻射劑量聯(lián)合ASi R50%重建技術(shù)在保證圖像質(zhì)量的基礎(chǔ)上,顯著降低了輻射劑量。
[Abstract]:Objective: To explore the clinical application value of low radiation dose combined with adaptive iterative reconstruction technique (ASi R) in laryngeal CT imaging. Methods: the laryngeal CT scan of 220 patients was divided into two groups: conventional dose filtering reprojection group (FBP group) and low radiation dose combined ASiR50% reconstruction group (ASi R50% group), 110 cases in each group. All the reconstructed images were transmitted. To AW 4.6 workstation after treatment, 3 image doctors used double blind method to evaluate the quality of two groups of images. The radiation dose and image quality of the two groups were compared by t test. Results: the ASiR50% group significantly reduced the radiation dose (P0.001), CTDIvol, DLP, Total DLP and m Sv respectively, 80.22% (6.65/8.29), 82.95% (78). .61/94.77), there was no significant difference in comparison between 82.95% (157.23/189.54) and 83.04% (0.93/1.12).FBP and ASi R50% group image quality display capability (P0.05). Conclusion: low radiation dose combined with ASi R50% reconstruction technique significantly reduced the radiant dose on the basis of ensuring the quality of the image.

【作者單位】： 湖南省郴州市第一人民醫(yī)院醫(yī)學(xué)影像中心;
【分類(lèi)號(hào)】：R767;R816.96

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