中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2013年
6期
526-528
,共3页
谢婷婷%王成林%丁贺宇%黎永滨
謝婷婷%王成林%丁賀宇%黎永濱
사정정%왕성림%정하우%려영빈
肝脏%体层摄影术,X线计算机%能谱成像
肝髒%體層攝影術,X線計算機%能譜成像
간장%체층섭영술,X선계산궤%능보성상
Hepatic%Tomography,X-ray computed%Spectral imaging
目的 应用双能量CT碘定量的方法,探讨正常活体肝脏左、右叶及尾状叶的肝动脉和门静脉双重血流灌注量(或碘含量)的生理特点.方法 对77例行上腹部CT检查肝脏正常的患者行上腹部双能量CT增强扫描,选择规定的ROI测定碘含量,应用双能量分析软件对比研究增强后动脉期、门静脉期肝左、右叶及尾状叶的碘定量,并对肝左右叶及尾状叶的碘含量、肝动脉期/门静脉期血流量比值进行方差分析比较.结果 肝尾状叶肝动脉期碘含量为(851±35) μg/L、门静脉期碘含量为(2912 ±78) μg/L,肝左叶肝动脉、门静脉期碘含量分别为(445 ±34)和(2373±77) μg/L,肝右叶肝动脉、门静脉平均碘含量分别为(504 ±30)和(2515 ±78) μg/L,尾状叶与肝左、肝右叶差异均有统计学意义(P值均＜ 0.05).肝左叶、肝右叶和尾状叶肝动脉/门静脉血流量比值分别为(28.41±3.42)％、(35.76±5.80)％和(49.92±4.63)％,差异有统计学意义(F=5.36,P＜0.01).结论 双能量CT物质分离功能和碘定量可用于反映肝脏各叶双重血供情况.正常人肝尾状叶的肝动脉、门静脉血流量与肝左、右叶存在明显差异.
目的 應用雙能量CT碘定量的方法,探討正常活體肝髒左、右葉及尾狀葉的肝動脈和門靜脈雙重血流灌註量(或碘含量)的生理特點.方法 對77例行上腹部CT檢查肝髒正常的患者行上腹部雙能量CT增彊掃描,選擇規定的ROI測定碘含量,應用雙能量分析軟件對比研究增彊後動脈期、門靜脈期肝左、右葉及尾狀葉的碘定量,併對肝左右葉及尾狀葉的碘含量、肝動脈期/門靜脈期血流量比值進行方差分析比較.結果 肝尾狀葉肝動脈期碘含量為(851±35) μg/L、門靜脈期碘含量為(2912 ±78) μg/L,肝左葉肝動脈、門靜脈期碘含量分彆為(445 ±34)和(2373±77) μg/L,肝右葉肝動脈、門靜脈平均碘含量分彆為(504 ±30)和(2515 ±78) μg/L,尾狀葉與肝左、肝右葉差異均有統計學意義(P值均＜ 0.05).肝左葉、肝右葉和尾狀葉肝動脈/門靜脈血流量比值分彆為(28.41±3.42)％、(35.76±5.80)％和(49.92±4.63)％,差異有統計學意義(F=5.36,P＜0.01).結論 雙能量CT物質分離功能和碘定量可用于反映肝髒各葉雙重血供情況.正常人肝尾狀葉的肝動脈、門靜脈血流量與肝左、右葉存在明顯差異.
목적 응용쌍능량CT전정량적방법,탐토정상활체간장좌、우협급미상협적간동맥화문정맥쌍중혈류관주량(혹전함량)적생리특점.방법 대77례행상복부CT검사간장정상적환자행상복부쌍능량CT증강소묘,선택규정적ROI측정전함량,응용쌍능량분석연건대비연구증강후동맥기、문정맥기간좌、우협급미상협적전정량,병대간좌우협급미상협적전함량、간동맥기/문정맥기혈류량비치진행방차분석비교.결과 간미상협간동맥기전함량위(851±35) μg/L、문정맥기전함량위(2912 ±78) μg/L,간좌협간동맥、문정맥기전함량분별위(445 ±34)화(2373±77) μg/L,간우협간동맥、문정맥평균전함량분별위(504 ±30)화(2515 ±78) μg/L,미상협여간좌、간우협차이균유통계학의의(P치균＜ 0.05).간좌협、간우협화미상협간동맥/문정맥혈류량비치분별위(28.41±3.42)％、(35.76±5.80)％화(49.92±4.63)％,차이유통계학의의(F=5.36,P＜0.01).결론 쌍능량CT물질분리공능화전정량가용우반영간장각협쌍중혈공정황.정상인간미상협적간동맥、문정맥혈류량여간좌、우협존재명현차이.
objective Using iodimetric analysis of dual-energy CT,to explore the dual perfusion amount and proportion of hepatic artery and portal vein in different hepatic lobes on normal living bodies.Methods A total of 77 patients without hepatic diseases underwent contrast-enhanced upper abdomen dual-energy CT scanning.The raw data were transferred to the workstation for postprocessing.ROI were selected,then the iodine content in arterial phase,portal phase and delay phase were calculated automatically.The differences of these measures (iodine content and hepatic artery to portal vein perfusion ratio of the left hepatic lobe,right hepatic lobe and caudate lobe) in the left,fight and caudate lobe of liver were detected by using ANOVA test.Results The iodine concentration in the caudate lobe was(851 ± 35)μg/L from hepatic artery and (2912 ± 78) μg/L from portal vein.The iodine concentration in the left hepatic lobe was (445 ± 34) μg/L from hepatic artery and (2373 ± 77) μg/L from portal vein.The iodine concentration in the right hepatic lobe was(504 ± 30)μg/L from hepatic artery and(2515 ± 78) μg/L from portal vein.The perfusion condition (amount of blood supply) of caudate lobe showed a significant statistic difference from the left and right hepatic lobe (P ＜ 0.05),and the amount of blood supply from both sources were more than those of the left and fight hepatic lobes.There was no significant statistic difference in the amount of hepatic artery and portal vein blood supply between the right and left hepatic lobe(P ＞ 0.05).The proportions of blood supply from hepatic artery and portal vein (hepatic artery/portal vein) were different among the three hepatic lobes,which was (28.41 ± 3.42) ％ in left lobe,(35.76-± 5.80) ％ in fight lobe and (49.92 ±4.63)％ in caudate lobe,respectively(F =5.36,P ＜0.01).Conclusion Dual-energy CT can be used to study the dual-perfusion condition of the liver.On normal living bodies,the hepatic artery and portal vein perfusion in caudate lobe are different from those in left and right lobes.
