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mri enhancement
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  mri增强
     To study diagnostic value of Gd DTPA enhanced MRI, 33 cases of spinal metastatic tumor pathologically confirmed were subjected to the 1 5 Tesla MR imaging and the examination of Gd DTPA MRI enhancement.
     为研究MRI(磁共振影像) 增强检查对脊柱转移瘤的诊断价值, 对33 例经手术病理证实的脊柱转移瘤, 使用GE (美国通用电器公司) Signa 1.5 Tesla MR扫描和使用Gd-DTPA (顺磁造影剂- 钇二乙烯五胺乙酸) MRI增强检查。
短句来源
     T1WI imaging Wal low singal; T2WI high singal in MRI. MRI enhancement scanning has different extent potentiation in T1WI.
     结论:神经节细胞瘤典型的CT表现为低密度和点状钙化,在MRI上T1WI呈低信号,T2WI为高信号,MRI增强扫描.T1WI有不同程度的强化。
短句来源
     MRI enhancement in gliomas and its correlation with microvascular density and tumor cell proliferation
     胶质瘤MRI增强与微血管密度和肿瘤增殖活性的相关性
短句来源
     MRI enhancement scanning found abnormally diffused piamater enhancement in 3 cases.
     头颅MRI增强扫描显示软脑膜弥漫性异常增强3例。
短句来源
     Conclusion:The method can develope C6 glioma model effectively , and Gd DTPA induced MRI enhancement images can reveal the volume of tumor very well.
     结论 :该方法可有效建立胶质瘤模型 ,采用MRI增强扫描可以较好地反映C6胶质瘤的生长情况
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  增强mri
     Intrathecal sICAM-1 production in multiple sclerosis Correlation with triple dose Gd-DTPA MRI enhancement and IgG index
     多发性硬化症鞘膜内sICAM-1产物与3倍剂量Gd-DTPA增强MRI以及IgG指数相关性的研究
短句来源
     Objective:To study the correlation of dynamic MRI enhancement features with nuclear DNA content in hepatocellular carcinomas(HCC).
     目的:探讨肝细胞癌(Hepatocellular carcinoma,HCC)动态增强MRI表现与癌细胞核DNA含量的相关性。
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     Among 8 cases of MRI enhancement, 5 cases which showed abnormal hepatic segmental signal on plain scan were hepatic segmental enhancement, and other 2 lesions were transient hepatic segmental on CT enhancement which showed hepatic segmental hyperintensity in T_2WI on plain MR scan.
     8例行增强MRI者中,5例平扫表现肝段性异常信号的病灶均呈肝段性强化。 另有2例MRI平扫呈肝段性T2WI高信号灶,CT增强检查见动脉期一过性肝段性强化。
短句来源
     (2) To investigate the correlation between the dynamic MRI enhancement characteristics and tumor angiogenesis in gastric carcinoma.
     (2)探讨胃癌动态增强MRI强化表现与肿瘤血管生成的关系。
短句来源
     Objective To investigate the correlation between the dynamic MRI enhancement characteristics and tumor angiogenesis in gastric carcinoma.
     目的 探讨胃癌动态增强MRI强化表现与肿瘤血管形成的关系。
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  “mri enhancement”译为未确定词的双语例句
     14 cases received MRI examinations,and 12 cases among them underwent MRI enhancement scans; and 1 case received 3D TOP MRA examination.
     14例行MRI检查,其中2例作MRI平扫,12例作MRI平扫加增强,其中1例3D TOF MRA检查。
短句来源
     SYNTHESIS AND MRI ENHANCEMENT OF IRON(Ⅲ) COMPLEXES WITH PHOSPHATE- EDTA-POLYGLYCOL TERPOLYMER LIGANDS
     多甘醇-磷酸酯-EDTA酯共聚物铁(Ⅲ)配合物的合成和磁共振成象增强作用
短句来源
     The wall of hematoma was enhanced in 3 cases on MRI enhancement scan.
     增强扫描3例见血肿壁强化,4例未见强化。
短句来源
     1 The effect of diazepam on the blood brain barrier (BBB) after irradiated:(1) In vivo: Magnetic resonance imaging(MRI) with the T1-Weighted images, T2-Weighted images and Gd-DTPA induced MRI enhancement images was used to find out the effects of diazepam on the brain tissue signal intensity and the enhancement rate at the each observed point.
     (1)在体水平:在各观察时间点行磁共振(MRI)检查,分别作T_1、T_2加权像扫描以及增强扫描,检测安定对照射后脑组织信号强度以及信号增强率的影响。
短句来源
     Methods MRI plain scan and MRI enhancement were analyzed in 47 cases with meningitis. Enhancement T1W images was digitally subtracted with the pre-enhanced image as the mask.
     方法47例脑膜炎病人进行MRI平扫及增强扫描,然后用T1W增强后的图像与增强前的图像进行减影,比较减影前后图像对脑膜强化显示能力及对比度/噪声比值(CNS值)。
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  mri enhancement
Predicting response using MRI enhancement characteristics when response is determined using change in enhancement pattern: a pot
      
In the operated group, preoperative MRI enhancement, type of hernia, and invasion of granulation tissue in the histological specimens were studied.
      
Intrathecal sICAM-1 production in multiple sclerosis Correlation with triple dose Gd-DTPA MRI enhancement and IgG index
      
This difference in the degree of MRI enhancement persisted throughout the 15-minute MRI acquisition period.
      
Tl evidence for nonviability have significantly greater MRI enhancement; this effect persists throughout 15-minute MRI imaging period.
      
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This study compares the diagnostic value of 18F-FDG PET and 99mTc-MIBISPECT imaging in the diagnosis of recurrence and malignancy of glioma. 28 patientswith glioma post treatment were performed by MRI or/and CT and 18F-FDG PETimagmg, and 14 of them were also performed by 99mTc-MIBI SPECT. On PET scans,10 patients were hypometabolic, 4 patients were central non-metabolic withperipheral rm FDG uptake, 14 patients were hypermetabolic. Out of 8 patients withastrocytoma Ⅰ - Ⅱ grade confirmed by operation, 5...

This study compares the diagnostic value of 18F-FDG PET and 99mTc-MIBISPECT imaging in the diagnosis of recurrence and malignancy of glioma. 28 patientswith glioma post treatment were performed by MRI or/and CT and 18F-FDG PETimagmg, and 14 of them were also performed by 99mTc-MIBI SPECT. On PET scans,10 patients were hypometabolic, 4 patients were central non-metabolic withperipheral rm FDG uptake, 14 patients were hypermetabolic. Out of 8 patients withastrocytoma Ⅰ - Ⅱ grade confirmed by operation, 5 ones showed hypermetabolic,indicating malignant degeneration of low-grade glioma. The sensitivity and accuracyof 18F-FDG PET and 99mTc-MIBI SPECT in the diagnosis of recurrence andmalignant degeneration of glioma were 93.3%, 94.1% and 91.7%, 85.7% respectively.FDG PET imaging is the most accurate method in the detection of recurrence andmalignant degeneration of low-grade glioma, compared with MRI enhancement and99mTc-MIBI SPECT. The extent of lesion site detected by MIBI scans is usuallybigger than FDG PET imaging.

对28例经过治疗的胶质瘤患者进行Gd-DTPAMRI和18F-FDGPET显像,其中14例同时进行99mTc-MIBISPECT显像,并与治疗前解剖影像对比。PET结果发现14例高代谢,10例低代谢,4例瘤灶中心坏死,周边FDG环状摄取。8例首次手术病理Ⅰ-Ⅱ级星形细胞瘤患者中5例为高代谢。18F-FDGPET和99mTc-MIBISPECT诊断胶质瘤复发及恶变的灵敏度依次为93.3%、91.7%。准确性依次为94.1%、85.7%.PET比MRI增强扫描及MIBISPECT显像更能准确鉴别胶质瘤的复发与恶变,MIBISPECT检出的病变范围比PET大。

A new series of polyglycol-phosphate-EDTA ester terpolymer ligands were synthesized by the copolymerization of ethylene diamine tetraacetic dianhydride(EDTAA),ethyl phosphodichloridate (or methyl phosphodichloridate, n-butyl phosphodichloridate) with diethylene glycol or triethylene glycol,and their Fe(Ⅲ) complexes were prepared. The structures of these new ligands and Fe(Ⅲ) complexes were comfirmed by 1 H NMR,IR and elemental analysis. The longitudinal relaxation measurements on these macromolecular complexes...

A new series of polyglycol-phosphate-EDTA ester terpolymer ligands were synthesized by the copolymerization of ethylene diamine tetraacetic dianhydride(EDTAA),ethyl phosphodichloridate (or methyl phosphodichloridate, n-butyl phosphodichloridate) with diethylene glycol or triethylene glycol,and their Fe(Ⅲ) complexes were prepared. The structures of these new ligands and Fe(Ⅲ) complexes were comfirmed by 1 H NMR,IR and elemental analysis. The longitudinal relaxation measurements on these macromolecular complexes indicated that most of them have higher relaxivity as compared to Fe(Ⅲ) EDTA.Moreover,the acute toxicity test using one of these Fe(Ⅲ) complexes was performed and no obvious toxicity was observed.Finally,T 1 weighted contrast imaging of rat liver showed clear MRI enhancement after injection the new complex.

通过乙二胺四乙酸双酸酐、二氯磷酸酯与多甘醇共缩聚,制得一系列三元共聚物配体.用配体与三氯化铁反应,得到相应的铁配合物.表征了配体和配合物的化学结构,测试了配合物的纵向弛豫速率,并考察了配合物的急性毒性和磁共振成象增强作用.

Purpose To evaluate the value of ~(201) Tl SPECT and enhanced MRI in classification of gliomas Methods With semiquantitative method, we compared ~(201) Tl uptake and MRI enhancement in classification of gliomas in 37 patients with histologically confirmed supratentorial glioma, including 13 low-grade gliomas (LgG), 8 anaplastic gliomas (AG) and 16 glioblastomas (GB) according to WHO classification Results The ~(201) Tluptake were 1.23±0.76 in LgG, 2.60±1.24 in AG, and 4.45±1.68 in GB LgG...

Purpose To evaluate the value of ~(201) Tl SPECT and enhanced MRI in classification of gliomas Methods With semiquantitative method, we compared ~(201) Tl uptake and MRI enhancement in classification of gliomas in 37 patients with histologically confirmed supratentorial glioma, including 13 low-grade gliomas (LgG), 8 anaplastic gliomas (AG) and 16 glioblastomas (GB) according to WHO classification Results The ~(201) Tluptake were 1.23±0.76 in LgG, 2.60±1.24 in AG, and 4.45±1.68 in GB LgG had a significantly lower uptake than AG and GB (P<0.01), and there was a significant difference between AG and GB (P<0.05) Based on a cutoff of 2.0 to distinguish low-grade lesions from highgrade ones (AG and GB), histological grades in 31 of 37 (838%) patients were correctly recognized by ~(201) Tl SPECT Moreover, the present study showed that a moderate MRI enhancement was not accurate enough in classification of gliomas, and ~(201) Tl SPECT could offer complementary informations Conclusions ~(201) Tl SPECT is more valuable for evaluating malignancy of the gliomas than MRI

目的评估201TlSPECT与增强MRI在脑胶质瘤恶性度判断中的价值。方法37例经组织学证实的幕上胶质瘤病人,按WHO分级,13例为低级别损害,8例为间变性损害,16例为胶质母细胞瘤。采用半定量法,比较201Tl摄取、MRI增强与胶质瘤组织学级别的关系。结果在低级别损害组201Tl平均摄取值为123±076,明显低于间变组260±124(P<001)和胶质母细胞瘤组445±168(P<001),后两组差异也有显著性(P<005)。若用201Tl摄取值20作为阈值,鉴别高与低级别胶质瘤,则838%(31/37)病例可被正确预测。研究显示,按肿瘤在MRI上的增强度来判定其恶性程度,其主要缺陷在于中等度增强缺乏特异性,而201TlSPECT可弥补其不足。结论对于胶质瘤恶性度的判定,201TlSPECT比MRI更有价值

 
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