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dtpa动态
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  dtpa
     Objective To investigate the enhancement characteristics of the pancreas on Mn DPDP enhanced MRI and to compare Mn DPDP enhancement with Gd DTPA dynamic enhancement, to guide Mn DPDP enhanced pancreatic MRI in clinical practice.
     目的 探讨Mn DPDP增强MRI胰腺强化特征 ,并与Gd DTPA动态增强比较 ,为Mn DPDP增强胰腺MRI的临床应用提供指导。
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     Conclusion Gd DTPA dynamic enhanced MR imaging can improve the diagnostic accuracy significantly on SHCC.
     结论 :Gd- DTPA动态增强 MRI能显著提高对 SHCC诊断准确性。
短句来源
     The pancreatic CEI on SPGR T 1WI, obtained at 35 min after the administration of Mn DPDP, was lower than that obtained on Gd DTPA enhanced images in arterial phase (80%±29 vs 108%±26, P<0.05). But it was similar to that obtained in portal phase (85%±25, P<0.05) and higher than that obtained in delayed phase (69%±13, P<0.05).
     给药结束后 35minSPGRT1W图像上胰腺CEI(80 %± 2 9)低于Gd DTPA动态增强动脉期 (10 8%± 2 6 ) (P <0 .0 5 ) ,与门脉期的 85 %± 2 5相似 (P >0 .0 5 ) ,比延迟期的 6 9%± 13高 (P <0 .0 5 )。
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     Pseudocapsule can be detected in 52 % patients, The diagnostic accuracy of Gd DTPA dynamic enhanced MR imaging on SHCC was 92.6 % and the traditional MR plain scan (T 1WI and T 2WI)was 74 %(P<0.05).
     5 2 %可见假包膜。 MRI平扫与 Gd- DTPA动态增强对 SHCC诊断的准确率分别为 74 %和 92 .6% (P<0 .0 5 )。
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     Conventional plain and dynamic Gd DTPA enhanced scanning were done initially.
     常规平扫及Gd DTPA动态增强 ;
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  “dtpa动态”译为未确定词的双语例句
     The accuracy of the evaluation for resectability were 47.9%~57.9%,78.9%~84.2% and 84.2%~89.5% for plain scan,Mn-DPDP e nhancement and Gd-DTPA enhancement respectively.
     平扫、Mn -DPDP增强及Gd -DTPA动态增强对胰腺癌可切除性评价准确性分别为47.9 %~57.9 %、78.9 %~84.2 %和84.2 %~89.5 %。
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     Gd-DTPA dynamic enhancement MRI for evaluation of myocardial micro-vessels injury
     Gd-DTPA动态增强MRI评价心肌微血管损伤
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     MRI Diagnosis of Pancreatic Islet Cell Tumors——Stressing the Applications of 3D Gd - DTPA Dynamic Enhanced MR Imaging
     胰岛细胞瘤的MRI诊断——着重探讨3D Gd-DTPA动态增强MRI的应用
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     Hepatocellular Carcinoma: Clinical Studies of Dynamic Enhanced MRI with Gd-DTPA and Mn-DPDP Enhanced MRI
     肝细胞癌Gd-DTPA动态增强及Mn-DPDP增强MRI的临床研究
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     Gd-DTPA Dynamic Enhanced MRI Diagnosis on Small Hepotacellar Carcinomas
     小肝癌的Gd-DTPA动态增强MRI诊断
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     Trends
     动态:
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     TRENDS
     动态
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     Conventional plain and dynamic Gd DTPA enhanced scanning were done initially.
     常规平扫及Gd DTPA动态增强 ;
短句来源
     An analysis of ~(99m)Tc-DTPA renal dynamic imaging in patients with diabetes mellitus
     糖尿病患者~(99m)Tc-DTPA动态显像的分析
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  dtpa
A new heterometallic Bi(III) complex with diethylenetriaminepentaacetic acid anion (Dtpa)5- of the composition [Co(Tsc)3]2[Bi(Dtpa)]2SO4 ? 6H2O (I) (Tsc is thiosemicarbazide) is synthesized and its crystal structure is determined.
      
The complex consists of the [Co(Tsc)3]3+ cations, [Bi(Dtpa)]2- and SO42- anions, and crystallization water molecules.
      
The carboxyl groups of octadentate (Dtpa)5- ligand in the [Bi(Dtpa)]2- anion are fully deprotonated.
      
Heteronuclear Ge(IV) complexonates with Co(II), Ni(II), and Zn(II) based on diethylenetri-aminepentaacetic acid (H5Dtpa) are synthesized for the first time.
      
A reaction of samarium oxide, nickel oxocarbonate, and diethylenetriaminepentaacetic acid (H5DTPA) taken in stoichiometric proportions in water gave SmNiDTPA · 10H2O as a glassy solid.
      
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?99m)Tc-DTPA dynamic renal image and colour doppler flow image were performed to monitor the renal allografts in 15 dogs,During early acute rejection, ̄(99m)Tc-DTPA dynamic renal image findings were as follows:K/A ratio was≤3,B/K ratio<1 and the ratio of positive estimation was 100%,The less the K/A ratio and the poorer the image,the more severe was the acute rejection. The positive estimation rate was 82%,In severe acute rejection,the intrarenal arch arteries were blocked and vanished and the diastolic period...

?99m)Tc-DTPA dynamic renal image and colour doppler flow image were performed to monitor the renal allografts in 15 dogs,During early acute rejection, ̄(99m)Tc-DTPA dynamic renal image findings were as follows:K/A ratio was≤3,B/K ratio<1 and the ratio of positive estimation was 100%,The less the K/A ratio and the poorer the image,the more severe was the acute rejection. The positive estimation rate was 82%,In severe acute rejection,the intrarenal arch arteries were blocked and vanished and the diastolic period blood flow of renal arteries were reversed.

目的:通过动物实验,对 ̄(99m)Tc-DTPA动态肾显像和彩色多普勒血流成像(CDFI)在肾移植检查中的应用做一评价。方法:建立犬异体肾移植模型,应用以上两项技术,对15只犬异体肾移植后进行连续监测。结果与结论:(1) ̄(99m)Tc-DTPA动态肾显像诊断早期排斥标准:K/A比值<3,B/K比值<1,其阳性预测率为100%,随着排斥加重,K/A比值进行性降低,肾显像模糊;(2)CDFI诊断急性排斥标准:RI值>0.8,其阳性预测率为82%,严重排斥时,肾内弓形动脉闭塞消失,肾动脉舒张期血流反向。

To study the dynamic changes of myocardial signal intensities in normal subjects by Gd -DTPA enhanced MRI.Materials and Methods; 12 cases of normal hearts were examined before and after Gd-DTPA enhancement by 0.35 ̄ 0.38T MRI set also with dynamic observation on the latter.Results:The signal intensities revealed no significant differences among various parts of myocardium such as interventricular septum,lateral wall of left ventricle (LV),inferior wall of LV and anterior wall of LV on the preenhancement images,nor...

To study the dynamic changes of myocardial signal intensities in normal subjects by Gd -DTPA enhanced MRI.Materials and Methods; 12 cases of normal hearts were examined before and after Gd-DTPA enhancement by 0.35 ̄ 0.38T MRI set also with dynamic observation on the latter.Results:The signal intensities revealed no significant differences among various parts of myocardium such as interventricular septum,lateral wall of left ventricle (LV),inferior wall of LV and anterior wall of LV on the preenhancement images,nor did on the images of different timed and dynamic scannings after enhancement(P>0.05) .Myocardial signal intensity increased uniformly after intravenous administration of Gd-DTPA, and reached its peak in 5 minutes after enhancement and decreased gradually on the delayed enhanced scannings.Conclusion: No matter whether on preenhancement or postenhancement scans the myocardium showed homogeneous signal intensity.Regional signal intensity increased or decreased should be considered as abnormal.

目的:探讨正常心脏心肌在Gd-DTPA动态MRI上的信号表现及动态变化规律。材料和方法:12例正常心脏于0.35~0.38TMRI机上作Gd-DTPA增强前后MRI检查,增强后为动态观察。结果:左心室前壁、侧壁、下壁以及室间隔的信号强度在增强前其差别无统计意义(P>0.05);增强后及其动态观察中,各时间段内各部心肌信号率差别无统计意义(P>0.05)。正常心肌增强后呈均匀一致强化,最大强化是在增强后5分钟内,随增强时间延长而递减。结论:正常心肌在Gd-DTPAMRI增强前后的信号均匀一致,局部心肌信号增高或减低应视为病理改变。

Objective: To determine the characteristics of dynamic Gd DTPA-enhanced of 13 cases liver lesions with fast field echo (FFE) technique of gradient echo (GRE) and improve the accuracy of diagnosis in liver lesions.Materials and Methods:20 cases single liver lesion, unconfirmed by other imaging, were performed with conventional spin echo (SE) and rapid dynamic Gd DTPA enhanced with FFE sequences. The signal intensity of normal liver (SI liver), lesions (SI lesion) and noise in the image background (SI noise±[WT5”BX〗s[WT5”BZ〗)...

Objective: To determine the characteristics of dynamic Gd DTPA-enhanced of 13 cases liver lesions with fast field echo (FFE) technique of gradient echo (GRE) and improve the accuracy of diagnosis in liver lesions.Materials and Methods:20 cases single liver lesion, unconfirmed by other imaging, were performed with conventional spin echo (SE) and rapid dynamic Gd DTPA enhanced with FFE sequences. The signal intensity of normal liver (SI liver), lesions (SI lesion) and noise in the image background (SI noise±[WT5”BX〗s[WT5”BZ〗) were measured respectively. The contrast to noise ratio of livers and lesions (C/N) were calculated in different phases of various liver lesion. 13 cases of single liver lesion were confirmed by histology or surgery, including 10 cases of hepatic cell carcinoma (HCC), 3 cases of focal nodular hyperplasia (FNH). According to the liver lesion C/N values of different lesions in each phase, the time C/N curves wre illustrated.Results:The time C/N curve of HCC is similar to that of FNH (including enhancement peaks, rising and dropping slope), but at early stage (within 1 minute) the C/N values of HCCs are higher, the second later stage (after 3 minutes) the enhancement value of them drops, the C/N valuse of FHNs is above zero, that of HCCs are below zero. These difference could last 15~20 minutes.Conclusion: Underwent rapid dynamic enhancement, the time C/N curves of various hepatic lesion are different, particularly at the early stage and the second later stage. Rapid dynamic Gd DTPA enhanced MRI can be used as a effective supplement method of conventional SE sequence of liver.

目的:运用梯度回波(GRE)的快速场回波(FFE)技术,对20例肝肿块进行Gd-DTPA动态增强,旨在探明不同肿块的增强规律,提高肝肿块的诊断和鉴别诊断能力。材料与方法:选取经过其他影像学检查未确诊的20例肝肿块,作常规自旋回波(SE)平扫后作Gd-DTPAFFE序列快速动态增强扫描,分别测量病灶信号强度(SIlesion),灶周正常肝脏信号强度(SIlivsr),背景噪声信号强度和标准差(SInoisec±s),计算不同病变不同时相的肝-病灶对比噪声比(C/N),描出不同肿块(本文只评价其中手术病理证实的13例肿块,包括肝细胞癌10例,局灶性结节增生3例的时间-病灶C/N曲线。结果:HCC与FNH两者曲线较接近(包括强化峰值和升降坡度),但在增强早期,HCC的C/N值高于FNH,3分钟以后二者强化值均下降,且FNH的C/N值大于0,HCC的C/N值小于0,此差异可持续15~20分钟。结论:不同的肝肿块,动态增强后的时间-C/N曲线不同,对HCC及FNH而言,增强早期(1分钟以内)及3分钟以后曲线差异较大,最有助于鉴别诊断。动态增强MR成像可作为肝脏常规SE序列成像的一种有效的补充方法。

 
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