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small focal hepatic lesion
相关语句
  相似匹配句对
     Small.
     Small、为正品。
短句来源
     On Small Towns
     关于小城镇的几点认识
短句来源
     The focal mechanisms of small events of the 1976 Songpan earthquake sequence
     1976年松潘地震序列的小震震源机制
短句来源
     FOCAL MECHANISMS OF SMALL EVENTS TO LONGLING EARTHQUAKE SWARMS IN 1976
     1976年龙陵震群的小震震源机制
短句来源
     1: focal ;
     局部分布,为1级;
短句来源
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Objective To determine the value of lesion/liver signal intensity ratio (SIR) in characterizing the small focal hepatic lesions.Method Ninety two patients with 148 focal hepatic lesions were prospectively performed magnetic resonance imaging at 0.5T.Calculated lesion/liver signal intensity ratios (SIR) of hepatocellular carcinomas,metastases,hemangiomas and cysts.Result There was no significant difference between the values of SIR for hemangiomas and those...

Objective To determine the value of lesion/liver signal intensity ratio (SIR) in characterizing the small focal hepatic lesions.Method Ninety two patients with 148 focal hepatic lesions were prospectively performed magnetic resonance imaging at 0.5T.Calculated lesion/liver signal intensity ratios (SIR) of hepatocellular carcinomas,metastases,hemangiomas and cysts.Result There was no significant difference between the values of SIR for hemangiomas and those for malignant lesions at T 1 weighted imaging(t=1.799,P=0.075),and there was no significant difference between the benign lesions and malignant lesions at proton density imaging(t=0.691,P=0.491).The values of the signal intensity ratios at T 2 weighted imaging for benign lesions were significantly higher than those for malignant lesions(P<0.01),linear positive correlation was found between the SIR values of the four typies liver lesions and echo time (TE).Conclusion In T 2 weighted imaging,the values of SIR can be used to characterize hepatic lesions.

目的 计算肝细胞癌、肝转移瘤、肝脏海绵状血管瘤和肝囊肿的病灶 /肝脏磁共振信号强度比 (SIR) ,并评价其与病灶性质的关系。方法 随机选择经确诊的肝细胞癌、肝转移瘤、肝海绵状血管瘤和肝囊肿病例共 92例 ( 148个病灶 )行前瞻性磁共振成像 ( 0 .5T)研究。计算 4种病灶的SIR ,并进行统计学分析。结果 在T1W图像上 ,肝海绵状血管瘤与恶性肿瘤的SIR值间差异无显著性 (t=1.799,P =0 .0 75) ;质子加权像上 ,良恶性肿瘤的SIR之间无统计学意义 (t=0 .691,P =0 .4 91) ;T2 WI上 ,良性病变的SIR显著高于恶性肿瘤 (P <0 .0 1) ,且 4种病变的SIR值与回波时间 (TE)之间均存在线性正向相关关系。结论 在T2 WI上测得的SIR可用于区分肝脏占位性病灶的性质

Objective To determine the value of lesion/water SIR in characterizing the small focal hepatic lesions.Method Ninety two patients with 144 focal hepatic lesions were prospectively performed magnetic resonance imaging at 0.5T.Calculated lesion/liver SIR of hepatocellular carcinomas,metastases,hemangiomas and cysts.Result There was no significant difference between the values of SIR for hemangiomas and those for malignant lesions at T 1 weighted imaging(t=1.830,P=0.071).The...

Objective To determine the value of lesion/water SIR in characterizing the small focal hepatic lesions.Method Ninety two patients with 144 focal hepatic lesions were prospectively performed magnetic resonance imaging at 0.5T.Calculated lesion/liver SIR of hepatocellular carcinomas,metastases,hemangiomas and cysts.Result There was no significant difference between the values of SIR for hemangiomas and those for malignant lesions at T 1 weighted imaging(t=1.830,P=0.071).The values of the signal intensity ratios for cysts were significantly lower than those for the other three lesions at T 1 weighted imaging(t=16.836,P<0.01),a cutoff of 1.2 was 94% accurate.At T 2 weighted imaging(TR =2500ms) the values of the signal intensity ratios for hemangiomas were significantly higher than those for malignant lesions(P<0.01).A cutoff of 0.6 was 93%accurate to distinguish hemangiomas from malignant lesions at 120ms TE,and a cutoff of 0.48 was 97%accurate to distinguish hemangiomas from hepatocellular carcinomas.Conclusion SIR has the positive value for characterizing hepatic lesions.

目的 研究肝细胞癌、肝转移瘤、肝脏海绵状血管瘤和肝囊肿的病灶 /水信号强度比(SIR)与病灶性质的关系。方法 随机选择经确诊的肝细胞癌、肝转移瘤、肝血管瘤和肝囊肿病例共 92例 ( 144个病灶 )行前瞻性磁共振成像 ( 0 .5T)研究。计算 4种病灶的SIR并进行统计学分析。结果 在T1W图像上 ,肝血管瘤的SIR值与恶性肿瘤之间差异无显著性 (t=1.83 0 ,P =0 .0 71) ,肝囊肿的SIR值显著低于其它三者 (t =16.83 6,P <0 .0 1) ,以 1.2为界 ,诊断正确率为 94 % .于T2 加权像上 (TR =2 50 0ms) ,血管瘤的SIR值均显著高于恶性肿瘤 (P <0 .0 1) ,TE =12 0ms时 ,以 0 .6为界 ,区分血管瘤与恶性肿瘤 ,诊断正确率达 93 % ;以 0 .4 8为界 ,区分血管瘤与HCC ,诊断正确率为 97% .结论 SIR在肝脏占位病变定性诊断方面有肯定的价值

Objective To determine the value of lesion/spleen signal intensity ratio(SIR) in characterizing the small focal hepatic lesions.Methods Seventy-seven patients with 108 focal hepatic lesions were prospectively perfromed magnetic resonance imaging at 0.5T.Calculated lesion/spleen signal intensity ratios(SIR) of hepatocellular carcinomas,metastases,hemangiomas and cysts.Results The values of the signal intensity ratios for cysts were significantly lower than those...

Objective To determine the value of lesion/spleen signal intensity ratio(SIR) in characterizing the small focal hepatic lesions.Methods Seventy-seven patients with 108 focal hepatic lesions were prospectively perfromed magnetic resonance imaging at 0.5T.Calculated lesion/spleen signal intensity ratios(SIR) of hepatocellular carcinomas,metastases,hemangiomas and cysts.Results The values of the signal intensity ratios for cysts were significantly lower than those for the other three lesions at T 1-weighted imaging(t=14.425,Ρ<0.001).A cutoff of 0.76 was 94% accurate.At T 2-weighted imaging(TR=2500 ms)the values of the signal intensity ratios for hemangiomas were significantly higher than those for malignant lesions(Ρ<0.05).The cutoff of 1.2?1.5?1.4 were 98%?89%?98% accurate to distinguish hemangiomas from hepatocellular carcinomas at 60 ms?90 ms?120 ms TE respectively.Conclusion Lesion/spleen signal intensity ratio has the postive value for characterizing hepatic lesions.

目的 计算肝细胞癌、肝转移瘤、肝脏海绵状血管瘤和肝囊肿的病灶 /脾脏信号强度比 (SIR) ,研究其与病灶性质的关系。方法 随机选择经确诊的肝细胞癌、肝转移瘤、肝血管瘤和肝囊肿病例共 77例 (10 8个病灶 ) ,行前瞻性磁共振成像 (0 .5T)研究。计算 4种病灶的SIR并进行统计学分析。结果 于T1WI上 ,肝囊肿的SIR值显著低于肝细胞癌、肝转移瘤和肝血管瘤的SIR值 (t =14 .42 5 ,Ρ <0 .0 0 1) ,以 0 .76为界 ,诊断正确率为 94%。T2 WI上 ,血管瘤的SIR值均显著高于恶性肿瘤 (Ρ <0 .0 5 ) ,TE =60ms、90ms、12 0ms时 ,分别以 1.2、1.5、1.4为界 ,区分血管瘤与HCC ,诊断正确率分别为 98%、89%、98%。结论 病灶 /脾脏信号强度比在肝脏占位病变定性诊断方面有肯定的价值

 
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