t2wi

Results : T2WI and contrast scan can well show tumors in different sites .

结果：T2WI和增强扫描可以提供较好的肿瘤病灶的组织对比显示。

Cases showed inflammatory mass , which showed little low signal in T1WI and little high signal in T2WI ;

5例炎性肿块，表现为T1WI呈稍低信号、T2WI呈稍高信号；

On T2WI , homogeneous decreases in signal intensity of the peripheral zone was found in all patients .

T2加权像上前列腺周围带及移行带信号显示不同程度的弥漫性减低；

Results In acute cerebral hemorrhage , there were low signal or signal on T1WI and T2WI showed high signal ;

结果在急性期脑出血，T1WI可出现低信号或等信号，T2WI呈高信号；

Methods MRI signal change of T1WI and T2WI of15 patients with CO poisoning were analysed .

方法分析了15例CO中毒患者出现双侧苍白球T1WI、T2WI的信号改变。

Choroidal melanomas in eye showed high signal in T1WI and low signal in T2WI .

眼部脉络膜黑色素瘤在T1WI为高信号，T2WI为低信号；

Simple cyst was homogeneously low signal on T1WI and high signal on T2WI , not enhanced .

单纯性囊肿表现为均匀长T1长T2信号，增强扫描不强化。

Conclusion : There were significant different signal changes on conventional T1WI and T2WI on the groups of necrosis and apoptosis .

结论：肝组织细胞坏死和凋亡在T1WI和T2WI上有明显的信号差异表现。

Results 6 cases were pure cystoma , which manifested low signal in T1WI and high signal in T2WI ;

结果：6例卵巢单纯囊肿，T1WI呈低信号，T2WI呈高信号；

Materials and Methods : 35 patients with soft-tissue diseases were examined with MR STIR and FSE T2WI .

材料和方法：选择了35例软组织疾患者同时行磁共振STIR像和FSET2加权像的扫描。

TIR T2WI and MR dynamic enhancement scanning are very valuable for the differential diagnosis of atypical hepatic abscess .

T2WI脂肪抑制序列和动态增强扫描对鉴别诊断有价值。

MRI scan suggested uniform T1WI signal , and slight increase in T2WI signal , and enhanced scan suggested even enhancement .

MRI平扫，T1WI呈等信号，T2WI呈稍高信号，增强扫描大部分呈均匀强化。

High or high-mixed signal intensity on T2WI , and to demonstrate the internal auditory canal is enlarged ;

T2WI呈高或高等混合信号，并可显示内听道扩大；

To evaluate the MRI diagnostic value of T1WI 、 T2WI and Gd-DTPA enhanced imaging in adrenal masses .

目的：为探讨磁共振成像（MRI）T1WI、T2WI及Gd－DTPA增强扫描对肾上腺肿块的诊断价值。

The DNS was ariseed , main signal intensities were low in T1WI , high in T2WI ;

出现迟发性脑病主要表现为T1WI为低信号，T2WI为高信号改变；

There was also iso-signal about fetal liver on PDWI and T2WI during different gestational weeks .

在PDWI及T2WI上，胎儿肝脏的信号在不同的孕周均呈等信号。

Conclusion FLAIR should become a conventional sequence in the diagnosis of cerebral infarction , but it can not substitute SE T2WI .

结论FLAIR序列成像在脑梗死诊断中应作为常规序列使用，但不能取代SET2WI。

MRI findings : 2 apeared as well-defined lesions with low signal intensity on T1WI and high signal intensity on T2WI ;

MRI表现：2例显示髓腔内斑片状T1WI稍低信号，T2WI均呈稍高信号，边界清晰；

Conclusion Cerebral cavernous angioma manifests a wide variety of intensities on T1WI and T2WI , and imaging features are characteristic .

结论脑海绵状血管瘤T1WI、T2WI显示信号多样，但具有特征性。

Materials and Methods : The manifestations of42 cases of spinal metastasis on T1WI , T2WI and STIR sequence were retrospectively analyzed .

材料和方法：回顾性对照分析42例脊柱转移瘤之常规T1WI、T2WI及STIR序列的表现。

The astrocytoma had obvious local occupying effect on the CT and the structure of gyrus disappearanced on the T2WI .

星型细胞瘤CT像上显示局部占位效应明显，在T2WI像上显示脑回结构消失。

Results Among 78 patients with leiomyoma , most ( 60 / 78 ) were a well-circumscribed masses with low signal intensity on T2WI ;

结果大部子宫肌瘤患者（60/78），在T2WI中为边缘清晰的低信号肿块；

All patients were scanned with T1 , T2 weighted imaging ( T1WI , T2WI ), and contrast enhanced T1WI .

全部病例均行T1、T2加权和T1加权增强扫描。

Results : 5 cases'lumbar MR manifest uniformity hypo-signal in T1WI , uniformity hypo-signal in T2WI .

结果5例腰椎椎体表现为于T1WI呈均匀一致低信号，于T2WI呈均匀一致高信号。

Results The muscles and fat in nasopharyngeal masticator space of40 cases ( 80 sides ) were well demonstrated on both T1WI and T2WI images .

结果40例80侧鼻咽咀嚼肌间隙内肌肉及脂肪在T1WI及T2WI上均能较好显示；

Hemophilic pseudotumor showed a mixed signal in both T1WI and T2WI , which was composed of hematoma surrounded by fibrous membrane .

血友病性假肿瘤显示为纤维膜包裹的机化血肿，T1WI、T2WI均呈混杂信号。

Medial and lateral collateral ligament injuries in28 cases demonstrated hyperintensity on T2WI , thickening in shape and marginal haziness .

内、外侧副韧带损伤28例，表现为信号增高，形态增粗，边缘模糊。

Cases were proved cystoma teratoma , which showed low and high signal ( fat ) in T1WI , high and low signal ( bone and teeth ) in T2WI ;

5例为囊性畸胎瘤，T1WI呈低信号及高信号（脂肪），T2WI呈高信号及低信号（骨骼与牙齿）；

Results Epidermoid cysts in 3 cases displayed a variety of non-characteristic signal intensity patterns on T1 and T2-weighted images ( T1WI and T2WI ) .

结果表皮样囊肿3例，T1、T2加权显示各种不典型信号类型；

T1-weighted imaging ( T1WI ) and gradient echo sequences are more sensitive to the subependymal nodules than T2-weighted imaging ( T2WI ) .

室管膜下结节是TSC最重要的MR影像学表现之一，以T1加权成像（T1WI）及梯度回波序列显示效果最佳。