查询词典 stepwise enhancement

It has great value to diagnose RA when pannus enhancement in MRI existed simultaneity with morning stiffness or and RF positive.

结论MRI血管翳强化与晨僵或类风湿因子阳性同时存在时，对于诊断早期类风湿关节炎具有较大的价值。

T1-weighted coronal sections show gadolinium enhancement along cortical gyri and sulci in the occipital paracentral cortex.

冠位增强T1像于枕叶旁中央灰质处见沿皮层脑回、脑沟的强化病灶；左侧枕叶距状裂皮层也见轻度强化病灶（最后1张图片）。

Materials and Methods: Seven pa- tients of cerebral paragonimiasis examined with contrast enhancement and plain CT scans.

材料与方法：7例均作CT平扫和增强扫描。

Sensory impairment and urinary dysfunction also had developed, and paraparesis persisted after the hypokalemia was corrected during hospitalization. An optokinetic nystagmus test showed bilateral sick waves and at the same time a cerebrospinal fluid analysis was normal. A blood examination disclosed borderline anti-nuclear antibodies and an elevated serum IgG level. Her cervical spinal cord showed mild swelling and contrast-enhancement when examined by magnetic resonance imaging. Neither a brain stem nor an optic nerve's lesion was found. Based on the above, acute transverse myelitis was diagnosed. All the symptoms present in the patient relieved gradually after 5-days of pulsed intravenous methylprednisolone therapy.

一50岁女性，因为眩晕、前额头痛、视力模糊、恶心、呕吐及两侧下肢无力而求诊，於低血钾矫正后，两侧下肢无力依然持续，并发生胸部以下感觉缺损及排尿困难等现象，视运动性眼振检查显示两侧波形障碍，脑脊液检查正常，血液学检查显示抗核酸抗体及血清IgG指数偏高，显影剂增强磁振造影显示颈段脊髓肿大且略为显影，并无脑干或视神经的病灶，诊断为急性横断性脊髓炎，给予静脉注射类固醇后症状逐渐缓解。

It typically presents as a pedunculated or sessile mass, slightly hypo- or isointense to cortex on T1 and generally slightly bright on T2, without contrast enhancement and stable over time.

典型表现为有蒂或无蒂的肿块，T1序列上表现为稍低或等信号，T2为稍高信号，无强化，MRS表现为低NAA，正常到轻度升高的胆碱峰和高肌醇。

Multiphasic CT has moderate sensitivity in the detection of PETs. Most tumors are more conspicuous on the earlier phases of enhancement. Potential sources of false-negative results include tumors adjacent to vessels, pedunculated morphology, and nonhyperattenuating lesions.

薄层螺旋CT多期扫描对PET的检出敏感性高，多数肿瘤在增强早期显示明显，肿瘤邻近血管、蒂状突出及非高密度病灶是造成假阴性的潜在因素。

After injecting Gd-DTPA,the tumors mildly or moderately enhanced in 5,non-enhancement in1,MR could demonstrate clearly the cauliflowerlikeor papillaryform protrudinginto the bladder lumen,or out of vesical wall,Perivesical fat and adjacent structuresand lymph nodes were involved.

病灶可向腔内或膀胱外生长，累及膀胱周围脂肪及邻近器官和淋巴结转移；T1期3例，T2期4例，T3a期7例，T3b期8例，T4期5例，与病理分期对照，MR分期的准确率为77.8%(21/27)。

At the same time, we found that the aggravation of patients' jointpain was correlate with the enhancement of lipid peroxidate reaction when the weather changed bed.

提示机体脂质过氧化物反应增强可能是气象变化引起某些RA息者出现关节不舒或疼痛加重反应的主要因素之一。

A security enhancement scheme is proposed to encounter the black hole attacks in aodv protocol . this scheme may solve the black hole problem and prevent personating the destination node to some degree .

针对移动adhoc网络aodv协议中所存在的黑洞攻击，提出了一种增强安全性的解决方案，该方案能在一定程度上解决黑洞问题并可防止假冒目的节点攻击。

There is a mass noted over the posterior cervical space in the left posterior neck ,that corresponds to the mass palpated by patient.This mass appears hyperintense on T2 image,and shows moderate contrast enhancement.Radiograph confirmed the presence of a phlebolith at this location,and complementary ultrasound shows hypoechoic mass which is compressible.

有一个大规模指出，在颈椎后路空间在左后颈部，即相当于地下palpated由patient.this大规模出现高信号图像，并显示出温和的反差enhancement.radiograph证实存在一个静脉石在这个位置，和互补性超声显示低回声肿块是可压缩。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。