eADC values, BpMRI score and mpMRI score were effective indicators in diagnosis of clinical significant prostate cancer (P<0.001). The AUC values of ADC value and eADC value were 0.888 and 0.931 respectively, but...
10、死囊变素adcvalues: 1.652.62 x 10-3mm2/sec,57,以脑脓肿为中心的ADC values:0.270;转移性肿瘤实质ADC values: 0.821.24 x 10-3 mm2/sec肿瘤坏死囊变ADC values: 2.62 x 10-3 mm2/sec。59,据报道,转移出现在DWI中,转移的郑智薰坏死部分在DWI(一般是iso-或hypointense)中信号多种多样。偶尔hyperinte...
头颅MRI中不同序列DWI和ADCde区别 57 转移瘤 肿瘤实质ADC values : 零.八二–一.二四 x 一零-三 mm二/sec 肿瘤坏死囊变区ADC values : 二.六二 x 一零-三 mm二/sec 头颅MRI中不同序列DWI和ADCde区别 58 转移瘤 据报道转移瘤在DWI上呈等或稍高信号,而其 ADC值范围约为零.八二–一.二四 x 一零-三...
进一步研究发现,术前MRI四点法瘤周和最大层面瘤体ADC值预测TACE治疗6个月病情进展的曲线下面积分别为0.893、0.785,最佳截断值分别为1.394 × 10-3、1.505 × 10-3mm2/s,灵敏度分别为82.4%、62.7%,特异度分别为84.6%、88.5%;术...
DWI最有价值的临床应用是检出和评价急性脑梗死与恶性肿瘤。在脑梗死的早期阶段，脑细胞出现肿胀并从细胞外间隙吸收水分，细胞内、外的水分子弥散受限，局部组织的ADC值降低，DWI表现为高信号，而此时常规MRI可表现为正常。DWI检查的时间很重要，它主要显示脑梗死后数天内的急性病变。弥散加权成像检查有何临床意义？人体...
头颅MRI中不同序列DWI和ADC的区别.ppt,DWI和ADC图的临床应用探讨 同仁医院影像中心 付琳 弥散加权成像(DWI)是MR新近发展的一种成像技术,它对水分子的随机运动(布朗运动)非常敏感。当水分子弥散正常时,其图像显示等信号改变。当水分子弥散受限制时,DWI上就会出现异常
Two ROC curves were created to determine the optimal cut-off value for the ADC variable between O-RADS MRI categories 3–4 and 4–5, respectively, 1.411×10–3mm2/sec and 0.849×10–3mm2/sec. Based on these ADC values, 3/45 and 22/62 AMs were upgraded, respectively, to score 4 ...
( BIGRADS ) category4lesions , andtoestablish Logistic regressionpredictivemodels.Methods Totally79patientswith82BIGRADS4breastlesionsconfirmedwithpathologicalresultswereenrolled.Univariatebinary Logistic regressionanalysisandtwoGsample t GtestwereperformedtoanalyzethedifferenceofMRIcharacteristicsandADCvaluesbetweenbenign...
after treatment; the ADC values of lymph nodes in level Ⅰb and Ⅱa may be of great value in identifying patients with pSS and healthy volunteers, and the ADC values of lymph nodes in level Ia, Ⅰb and Ⅱa may be of great value in identifying patients with pSS before and after ...
werepositivelycorrelatedwiththepathologicaldiagnosisresults(P<0.05),whiletheADCvalueswerenegatively correlatedwiththepathologicaldiagnosisresults(P<0.05).Conclusion MRIT2valuesandADCvaluescanearly assessthefibrosisstagingandinflammatoryactivityofchronicliverdisease,providesanoninvasive,fastandaccurate quantitativediagnosticmet...