排序方式: 共有27条查询结果,搜索用时 13 毫秒
1.
目的 通过检测慢性HBV感染者血清IGF-1和IGFBP-3水平,探讨其对于慢性HBV感染分期诊断的临床意义及应用价值。方法 采用化学发光免疫分析法检测各组研究对象血清IGF-1和IGFBP-3水平。分析血清IGF-1和IGFBP-3水平在不同组别间的统计学差异及其与ALT等常用肝功能及肝损伤指标的相关性,并评价其在HBV感染相关炎症中的诊断效能。结果 与健康对照组相比,慢性HBV感染患者的血清IGF-1和IGFBP-3水平低于健康对照组,差异有统计学意义(P均<0.05);运用ROC曲线对慢性HBV感染引起的肝脏炎症中ALT、IGF-1和IGFBP-3诊断效能进行计算、比较,结果显示3者的ROC曲线下面积(AUC)分别为0.933、0.611、0.743,其中ALT的灵敏度,特异性均高于IGF-1和IGFBP-3,但IGF-1和IGFBP-3均有预测价值(AUC>0.5),且3者联合检测时AUC可提高至0.946。结论 IGF-1和IGFBP-3对于HBV感染引起的肝脏炎症有预测价值,虽然不能比ALT更好地反映HBV感染引起的肝脏炎症,但是ALT、IGF-1和IGFBP-... 相似文献
2.
Objective 99Tcm-4, 9-diaza-3, 3, 10, 10-tetramethyldodecan-2, 11-dione dioxime (HL91) is a new hypoxia imaging agent that demonstrates increased uptake and retention in tumor hypoxic tissues in vivo. The objective of this study was to evaluate the clinical value of 99Tcm-HL91 hypoxia imaging in post-therapeutic patients with cancers. Methods Thirty-seven patients with primary cancers at head and neck and upper aerodigestive region who were suspected to have residual, recurrent, or metastatic disease at either clinical follow-up or by regular CT follow-up, were included. All underwent 99Tcm-HL91 imaging. The radioactivity ratios of tumor to normal tissues (T/NT) were calculated using the region of interest (ROI) technique. A t-test was used for data analysis. The " gold standard" of diagnostic accuracy was based on histopathology or clinical follow-up. Results were compared between 99Tcm-HL91 and CT. Results Of the 37 patients, 11 had either residual or recurrent lesions and 7 had distant disease. (1) A significantly higher 99Tcm-HL91 uptake were noted in residual or recurrent lesions than benign lesions (1.58 ± 0. 16 vs 1.18 ±0.14, t =4. 87, P <0.001). (2) The sensitivity, specificity, and accuracy for residual or recur-rent lesions were 72. 73% (8/11), 63.64% (7/11), 4/4; 89.47% (17/19), 84. 21% (16/19), 94. 12% (16/17), and 83.33% (25/30), 76.67% (23/30), 95.24% (20/21) in 99Tcm-HL91, CT, and combined 99Tcm-HL91 and CT, respectively. (3) For distant sites detection (n = 7), CT detected all but 99Tcm-HL91 missed three. Conclusions A combination of 99Tcm-HL91 and CT in detection either residu-al, recurrent, or metastatic disease would have the highest benefit in patients with cancers at head and neck and upper aerodigestive region. 相似文献
3.
4.
血清肿瘤标志物CEA、CYFRA21-1、CA50、CA19-9、CA125联合检测对肺癌的诊断价值探讨 总被引:3,自引:0,他引:3
目的 探讨肿瘤标志物 CEA、CYFRA2 1- 1、CA5 0、CA19- 9、CA12 5辅助诊断肺癌的临床应用价值。方法 采集 16 0例住院患者的血清 ,其中肺癌 131例 ,肺部良性病变 (BL D) 2 9例 ,用化学发光法检测其血清癌胚抗原 (CEA)、糖链抗原 (CA19- 9)、糖链抗原 (CA12 5 ) ,用免疫放射法检测血清糖链抗原 (CA5 0 )、细胞角质蛋白19(CYFRA2 1- 1)的含量。结果 肺癌组患者血清 CEA、CYFRA2 1- 1、CA5 0、CA19- 9、CA12 5含量明显高于 BL D(P<0 .0 0 1) ;CEA+CYFRA2 1- 1+CA19- 9、 CEA+CYFRA2 1- 1+CA5 0和 CEA+CYFRA2 1- 1+CA12 5联合检测肺癌敏感性较单项检测提高 ,分别为 71.6 %、 79.1%、 83.7% ;CEA、 CA5 0、 CA12 5、 CA19- 9、 CYFRA2 1- 1的含量随肺癌病情进展和分期而升高。结论 肺癌患者血清 CEA、CYFRA2 1- 1、CA5 0、CA19- 9、CA12 5含量明显高于 BL D。血清肿瘤标志物联合检测可提高诊断肺癌敏感性。 相似文献
5.
目的探讨腮腺核素显像半定量分析与干燥综合征(SS)患者唇腺病理检查分级的相关性,以评价其在SS早期诊断和病情判断中的价值。方法对135例SS患者及30名健康志愿者(对照组)行常规腮腺核素显像和半定量分析,计算半定量指标:腮腺最大浓聚率(MAR)、腮腺酸刺激后最大分泌率(MSR)、酸刺激后腮腺达到最低放射性计数所需的时间(t腮腺)、酸刺激前口内活性指数(PRI)、酸刺激后口内活性指数(POI)。所有患者在显像检查后均获得唇腺病理检查结果,根据病理变化分为:0,1,2,3,4级。将各病理分级组的半定量指标与对照组进行比较(单因素方差分析和q检验),并且与唇腺病理分级结果进行相关性分析。结果病理分级3级以上组与对照组比较,所有半定量指标差异均有统计学意义(q=6.79~38.64,P均〈0.01);而病理1~2级组与对照组的比较,仅PRI和POI差异有统计学意义(q值分别为8.33和8.63,P均〈0.01)。MAR和MSR均随病理分级增加而减少,与病理分级呈负相关(r值分别为-0.679和-0.601,P均〈0.01)。t腮腺随病理分级增加而延长,与病理分级呈正相关(r=0.364,P〈0.01)。PRI和POI也随病理分级增加而明显减低,与病理分级呈负相关(r值分别为-0.724和-0.751,P〈0.01)。结论腮腺核素显像有关半定量指标与SS唇腺病理改变分级有相关性,提示其可用于评价SS的病变程度和监测病情变化,而口腔相关指标对SS的早期诊断可能更有价值。 相似文献
6.
Objective 99Tcm-4, 9-diaza-3, 3, 10, 10-tetramethyldodecan-2, 11-dione dioxime (HL91) is a new hypoxia imaging agent that demonstrates increased uptake and retention in tumor hypoxic tissues in vivo. The objective of this study was to evaluate the clinical value of 99Tcm-HL91 hypoxia imaging in post-therapeutic patients with cancers. Methods Thirty-seven patients with primary cancers at head and neck and upper aerodigestive region who were suspected to have residual, recurrent, or metastatic disease at either clinical follow-up or by regular CT follow-up, were included. All underwent 99Tcm-HL91 imaging. The radioactivity ratios of tumor to normal tissues (T/NT) were calculated using the region of interest (ROI) technique. A t-test was used for data analysis. The " gold standard" of diagnostic accuracy was based on histopathology or clinical follow-up. Results were compared between 99Tcm-HL91 and CT. Results Of the 37 patients, 11 had either residual or recurrent lesions and 7 had distant disease. (1) A significantly higher 99Tcm-HL91 uptake were noted in residual or recurrent lesions than benign lesions (1.58 ± 0. 16 vs 1.18 ±0.14, t =4. 87, P <0.001). (2) The sensitivity, specificity, and accuracy for residual or recur-rent lesions were 72. 73% (8/11), 63.64% (7/11), 4/4; 89.47% (17/19), 84. 21% (16/19), 94. 12% (16/17), and 83.33% (25/30), 76.67% (23/30), 95.24% (20/21) in 99Tcm-HL91, CT, and combined 99Tcm-HL91 and CT, respectively. (3) For distant sites detection (n = 7), CT detected all but 99Tcm-HL91 missed three. Conclusions A combination of 99Tcm-HL91 and CT in detection either residu-al, recurrent, or metastatic disease would have the highest benefit in patients with cancers at head and neck and upper aerodigestive region. 相似文献
7.
目的探讨血清肿瘤标志物预测乳腺癌骨转移的临床价值。方法应用化学发光免疫检测技术检测174例乳腺癌患者血清CA153、CA125、CEA、FER等四种肿瘤标志物,同时应用SPECT对所有患者行全身骨扫描检查,以明确有无骨转移。结果174例患者中55例临床诊断为乳腺癌骨转移。CA153、CA125、CEA、FER对诊断骨转移的阳性预测价值分别为68.0%(34/50),70.0%(14/20),88.9%(8/9),53.8%(14/26),阴性预测价值分别为86.2%(106/123),89.0%(130/146),73.2%(115/157),75.9%(85/112)。一种以上标志物同时阳性或阴性者,其阳性或阴性预测价值增加。结论CA153、CA125、CEA、FER具有预测乳腺癌骨转移的临床价值,联合检测CA153、CA125、CEA、FER能提高其预测乳腺癌骨转移的准确性。 相似文献
8.
9.
Objective 99Tcm-4, 9-diaza-3, 3, 10, 10-tetramethyldodecan-2, 11-dione dioxime (HL91) is a new hypoxia imaging agent that demonstrates increased uptake and retention in tumor hypoxic tissues in vivo. The objective of this study was to evaluate the clinical value of 99Tcm-HL91 hypoxia imaging in post-therapeutic patients with cancers. Methods Thirty-seven patients with primary cancers at head and neck and upper aerodigestive region who were suspected to have residual, recurrent, or metastatic disease at either clinical follow-up or by regular CT follow-up, were included. All underwent 99Tcm-HL91 imaging. The radioactivity ratios of tumor to normal tissues (T/NT) were calculated using the region of interest (ROI) technique. A t-test was used for data analysis. The " gold standard" of diagnostic accuracy was based on histopathology or clinical follow-up. Results were compared between 99Tcm-HL91 and CT. Results Of the 37 patients, 11 had either residual or recurrent lesions and 7 had distant disease. (1) A significantly higher 99Tcm-HL91 uptake were noted in residual or recurrent lesions than benign lesions (1.58 ± 0. 16 vs 1.18 ±0.14, t =4. 87, P <0.001). (2) The sensitivity, specificity, and accuracy for residual or recur-rent lesions were 72. 73% (8/11), 63.64% (7/11), 4/4; 89.47% (17/19), 84. 21% (16/19), 94. 12% (16/17), and 83.33% (25/30), 76.67% (23/30), 95.24% (20/21) in 99Tcm-HL91, CT, and combined 99Tcm-HL91 and CT, respectively. (3) For distant sites detection (n = 7), CT detected all but 99Tcm-HL91 missed three. Conclusions A combination of 99Tcm-HL91 and CT in detection either residu-al, recurrent, or metastatic disease would have the highest benefit in patients with cancers at head and neck and upper aerodigestive region. 相似文献
10.
目的评价^99Tc^m-4,9-二氮-3,3,10,10-四甲基十二烷-2,11-二酮肟(HL91)乏氧显像在恶性肿瘤治疗后随访中的价值。方法37例胸部和头颈部恶性肿瘤患者在治疗结束后3—12个月的临床随访中,CT检查怀疑肿瘤残余、复发或转移,再行^99Tc^m-HL91乏氧显像。目测定性分析,判定乏氧显像阳性病例,再用感兴趣区(ROI)技术对阳性病例进行半定量分析,计算肿瘤部位(T)与对侧相应部位或头皮(NT)的放射性比值(T/NT),并采用成组设计两样本均数t检验进行比较。以鼻咽内镜检查、病理活组织检查结果和12个月的临床随访资料作为判断肿瘤残余、复发或转移的依据,计算^99Tc^m-HL91显像和cT的诊断效能。结果37例患者中,无肿瘤局部残余或复发病灶者19例,存在肿瘤局部残余或复发病灶者11例,有远处转移病灶者7例。(1)无肿瘤局部残余或复发组与肿瘤局部残余或复发组的T/NT比值分别为1.18±0.14和1.58±0.16,两者差异有统计学意义(t=4.87,P〈0.001)。(2)^99Tc^m-HL91显像监测肿瘤局部残余或复发的灵敏度72.73%(8/11),特异性89.47%(17/19),准确性83.33%(25/30);CT监测肿瘤局部残余或复发的灵敏度63.64%(7/11),特异性84.21%(16/19),准确性76.67%(23/30)。^99Tc^m-HL91显像与CT结果一致的有21例患者,^99Tc^m-HL91显像与CT联合监测此21例肿瘤残余或复发的灵敏度4/4,特异性94.12%(16/17),准确性95.24%(20/21)。(3)7例转移患者,^99Tc^m-HL91显像阳性4例,CT均阳性。结论^99Tc^m-HL91乏氧显像对恶性肿瘤治疗后局部残余、复发或转移灶的鉴别有一定价值,与CT联合可有效提高对恶性肿瘤治疗后局部残余、复发或转移灶的早期诊断效能。 相似文献