实用放射学杂志
實用放射學雜誌
실용방사학잡지
Journal of Practical Radiology
2015年
9期
1460-1462,1470
,共4页
泡球蚴%肝细胞%边缘带%扩散加权成像%ADC 值%强化率
泡毬蚴%肝細胞%邊緣帶%擴散加權成像%ADC 值%彊化率
포구유%간세포%변연대%확산가권성상%ADC 치%강화솔
echinococcosi%hepatic%peripheral zone%duffusion-weighted imaging%apparent diffusion coefficient%enhanced ratio
目的：探讨3.0T MRI 扩散加权成像(DWI)结合动态增强扫描在肝泡球蚴病(HAE)边缘带诊断中的应用价值。方法对20例 HAE 的患者行上腹部 MR 常规平扫、DWI 扫描及动态增强扫描,并测量病灶中央坏死、实性部分、边缘带、正常肝实质的表观扩散系数(ADC)值范围及增强强化率,并进行比较分析。结果20例患者共检出包含>1 cm 的病灶32个,将伴有液化坏死的病灶(16个)编为 A 组,将无坏死的病灶(16个)编为 B 组；A 组实性部分、正常肝实质的 ADC 值为(1.52±0.30)×10-3 mm2/s、(1.22±0.30)×10-3 mm2/s；B 组实性部分、正常肝实质的 ADC 值为(1.50±0.25)×10-3 mm2/s、(1.03±0.28)×10-3 mm2/s。2组之间实性部分和正常肝实质之间无统计学差异。A、B 组边缘带的 ADC 值分别表示为1.34(1.10,1.61)×10-3 mm2/s,0.96(0.86,1.22)×10-3 mm2/s, A、B 2组之间有统计学差异(Z=2.867,P=0.004≤0.05)。A 组边缘带的强化率为1.70±0.36；B 组边缘带的强化率为1.58±0.30；A 组与B 组之间无统计学差异。边缘带 ADC 值与强化率之间无相关性。结论3.0T MRI DWI 图像能较直观显示 HAE,通过测定边缘带的 ADC 值范围能真实反映中央伴液化坏死和无坏死的病灶边缘带的扩散特点,并与病灶边缘带强化率作对比,对病灶具有一定的诊断价值。
目的：探討3.0T MRI 擴散加權成像(DWI)結閤動態增彊掃描在肝泡毬蚴病(HAE)邊緣帶診斷中的應用價值。方法對20例 HAE 的患者行上腹部 MR 常規平掃、DWI 掃描及動態增彊掃描,併測量病竈中央壞死、實性部分、邊緣帶、正常肝實質的錶觀擴散繫數(ADC)值範圍及增彊彊化率,併進行比較分析。結果20例患者共檢齣包含>1 cm 的病竈32箇,將伴有液化壞死的病竈(16箇)編為 A 組,將無壞死的病竈(16箇)編為 B 組；A 組實性部分、正常肝實質的 ADC 值為(1.52±0.30)×10-3 mm2/s、(1.22±0.30)×10-3 mm2/s；B 組實性部分、正常肝實質的 ADC 值為(1.50±0.25)×10-3 mm2/s、(1.03±0.28)×10-3 mm2/s。2組之間實性部分和正常肝實質之間無統計學差異。A、B 組邊緣帶的 ADC 值分彆錶示為1.34(1.10,1.61)×10-3 mm2/s,0.96(0.86,1.22)×10-3 mm2/s, A、B 2組之間有統計學差異(Z=2.867,P=0.004≤0.05)。A 組邊緣帶的彊化率為1.70±0.36；B 組邊緣帶的彊化率為1.58±0.30；A 組與B 組之間無統計學差異。邊緣帶 ADC 值與彊化率之間無相關性。結論3.0T MRI DWI 圖像能較直觀顯示 HAE,通過測定邊緣帶的 ADC 值範圍能真實反映中央伴液化壞死和無壞死的病竈邊緣帶的擴散特點,併與病竈邊緣帶彊化率作對比,對病竈具有一定的診斷價值。
목적：탐토3.0T MRI 확산가권성상(DWI)결합동태증강소묘재간포구유병(HAE)변연대진단중적응용개치。방법대20례 HAE 적환자행상복부 MR 상규평소、DWI 소묘급동태증강소묘,병측량병조중앙배사、실성부분、변연대、정상간실질적표관확산계수(ADC)치범위급증강강화솔,병진행비교분석。결과20례환자공검출포함>1 cm 적병조32개,장반유액화배사적병조(16개)편위 A 조,장무배사적병조(16개)편위 B 조；A 조실성부분、정상간실질적 ADC 치위(1.52±0.30)×10-3 mm2/s、(1.22±0.30)×10-3 mm2/s；B 조실성부분、정상간실질적 ADC 치위(1.50±0.25)×10-3 mm2/s、(1.03±0.28)×10-3 mm2/s。2조지간실성부분화정상간실질지간무통계학차이。A、B 조변연대적 ADC 치분별표시위1.34(1.10,1.61)×10-3 mm2/s,0.96(0.86,1.22)×10-3 mm2/s, A、B 2조지간유통계학차이(Z=2.867,P=0.004≤0.05)。A 조변연대적강화솔위1.70±0.36；B 조변연대적강화솔위1.58±0.30；A 조여B 조지간무통계학차이。변연대 ADC 치여강화솔지간무상관성。결론3.0T MRI DWI 도상능교직관현시 HAE,통과측정변연대적 ADC 치범위능진실반영중앙반액화배사화무배사적병조변연대적확산특점,병여병조변연대강화솔작대비,대병조구유일정적진단개치。
Objective To explore the application value of the diffusion-weighted imaging (DWI)and dynamic contrast-enhanced MRI in detection of peripheral zone of hepatic alveolar echinococcosis (HAE).Methods Twenty patients with HAE underwent abdominal plain scan,DWI and dynamic enhanced MRI.The ADC values and enhanced ratio of the central necrosis,solid component,peripheral zone and normal liver parenchyma were measured at a workstation,and further were analyzed and compared.Results 32 lesions were detected in 20 patients with HAE.Two groups were divided according to the lesion with central necrosis (group A)or not (group B).In group A, the ADC values of the solid part and normal liver parenchyma were (1.52±0.30)×10 -3 mm2/s and (1.22±0.30)×10 -3 mm2/s. Meanwhile,in group B those were (1.50±0.25)×10-3 mm2/s and (1.03±0.28)×10-3 mm2/s,exhibiting no statistical differences between the two groups.In group A and B,the ADC values of the peripheral zone of lesion were 1.34(1.10,1.61)×10 -3 mm2/s and 0.96 (0.86,1.22)×10 -3 mm2/s,exhibiting statistical differences (Z =2.867,P =0.004);meanwhile,the enhanced ratio were 1.70± 0.36 and 1.58±0.30,exhibiting no statistical difference.No correlation between ADC values and enhanced ratio was found in the peripheral zone.Conclusion DWI at 3.0T can display visually the HAE,and the ADC value may reflect the DWI features of periph-eral zone.The ADC values in combination with enhanced ratio may help for the diagnosis.
