病灶

3 Patients were in the acutestage,〓FDG and 〓NH〓 PET showed brain stem infarction in 2 patients, while CT was normal. MRA of one of them showed right vertebral artery obstruction. One case showed focal infarction within the territory of the right middle cerebral artery 12 hours after stroke onset.〓NH〓 uptake was reduced in right frontoparietal lobe, putamen and part of thalamus, while hyperperfusion was observed in ipsilateral head of caudate nucleus and a portion of thalamus.

急性期3例，2例〓FDG和〓NH〓均示病灶位于右侧脑干为放射性缺损区，CT检查均未显示，1例MRA示右侧椎动脉阻塞：另1例〓FDG示病灶在右侧大脑中动脉区域，与12小时CT所示病灶范围相同，但12小时的〓NH〓示右侧额、顶叶，壳核和部分丘脑为放射性减低和缺损区，而同侧尾状核头部和部分丘脑为过度灌注；发病24小时〓FDG显示除〓NH〓所见缺损区外，右侧额、顶叶部分区域和右侧尾状核头部代谢异常增高，血流和代谢有不一致处。

The tumors were lobulated in shape and appeared as iso-or slight high density in comparion with gyri on CT.

MRI见5个病灶境界清楚，信号不均匀，实质部分T1WI呈等或略低信号，T2WI呈等或略高信号。5例病灶边缘见类包膜样改变，T2WI呈略低信号；轻微水肿5个病灶。3个周围可见血管流空。

Result: The ADC values of hepatic cysts and hemangiomas were higher than those of primary hepatic carcinomas and hepatic metastasis, which were significantly different (P.01). According to signal intensity in arterial phase, hepatic malignant tumors were classified into hypervascular and hypovascular lesions.

结果：肝囊肿和血管瘤ADC值均明显高于原发性肝癌、转移瘤(P.0l)，根据多期动态增强扫描动脉期肝脏恶性肿瘤病灶的表现将其分为富血供病灶和乏血供病灶。

Key words: Monte Carlo method; MIRD method; ^153Sm-EDTMP; Absorption dose

患者注射153Sm-EDTMP 33.6×37 MBq，左髂骨转移病灶最高吸收剂量约为5.6 Gy，病灶边缘的吸收剂量为2.0 Gy，以病灶区最高剂量点为参考点，则椎体、皮质、骨髓、脊髓和盆腔组织仅相当于最高剂量的37%、12%、13%、21%和2%；MIRD方法的计算数据仅能粗略提示全身红骨髓吸收剂量，为2.39 Gy。

Peripheral ring-type, tortuous beaded shape or serpiginous tubular shape enhancement were found in 8 cases. After analysis of follow-up MRI for 7 cases, a change in location and shape of lesions was found in 2 cases.

结果：增强扫描12例，病灶均显示强化，8例病灶呈环形、串珠状或匐行管状强化。7例MRI复查发现2例病灶强化的位置及形态有改变。

Results In 11 cases,5 cases were intracranial,and 6 cases intravertebral canal.MRI could effectively show similarly shuttle or long-round shape's abnormal signal imaging.The T1W imaging showed uniformity or asymmetric and low or equal signal.The borders were slighty low or equal signal intensity,some had spetum.The T2W imaging showed obviously high signal,and a few cases showed slightly high or equal signal,while the borders showed slightly low or equal signal imaging.The thin peripheral could be obviously enhanced,but without inner enhancement.

结果 11例中发生于颅内5例，椎管内6例，其 MRI 表现：断面上显示为在颅板下或椎管内的梭形或长圆形异常信号影， T1WI 上表现为均匀或不均匀的低、略低或等信号影，周边为略低或等信号的较厚边缘，少部分（2例）有分隔； T2WI 上多表现为较明显的高信号，少数呈等、略高信号，并可见略低或等信号的边缘；增强扫描病灶边缘明显强化，其内无明显强化或不强化，1例病灶呈较均匀的强化，1例病灶部分呈片状强化。

The incidence of bone metastases varied with different lateral of lun g cancer (P.01).The incidence of adenocarcinoma (72.41%) was higher than squam ous carcinoma(43.48%)(P.05).Multiple metastatic lesions accounted for 93.1%(8 1 cases) and solitary 6.9%(6 cases),with an average of 6.39 loci per patient.

肺腺癌的阳性率72.4 1%，肺鳞癌的阳性率为43.48%，腺癌较鳞癌容易发生骨转移(P.05)。87例骨转移患者中81 例为多发病灶(占93.1%)，6例为单发病灶(占6.9%)，每例患者的平均病灶数为6.39个。

The sublumbar lymph nodes are the most common site of metastasis and can become larger than the original tumor.

髂淋巴结是最常见的扩散病灶，而且该病灶的肿瘤能增长到比原发病灶肿瘤更大的尺寸。

METHODS: Twenty pationts with spinal tuberculosis were treated by anterior partial vertebrectomy of the diseased vertebrae, iliac grafting and internal fixation via anterior of posterior approach.

20例脊柱结核患者，施行病灶部分切除、髂骨植骨、前路或后路内固定手术，术后将切除的大块病灶骨用MMA包埋、不脱钙骨切片、甲苯胺蓝染色，观察结核特征性病灶在整块骨中的分布情况。

Treatment of spinal tuberculosis1methods between february 1998 and august 2000 , 12 patients with spinal tuberculosis were operated with anterior vertebrectomy , bone grafting and plating1 evaluation including bone fusionrate , correction of deformity and status of spinal lesion was carried out1results in an average of ten months ,spinal tuberculosis was completely cured and solid bone fusion had taken place in all 12 patients1 the time for bone fusion averaged 518 months and the average angle of correction of kyphosis was 16°1conclusions anterior plating following vertebrectomy and bone grafting offers a complete removal of lesion and decompression of the spinal canal as well as reconstruction of spinal stability1 early rehabilitation and an increased curative rate can be expected through this procedure1

目的 探讨经脊柱前路结核病灶清除的同时植骨内固定的可行性和必要性，以及对脊柱结核的治疗效果。方法1998 年2月~2000 年8 月采用脊柱前路病椎切除加植骨，并采用orion或z-plate 钢板进行椎体固定。共治疗12 例脊柱结核，观察植骨融合及矫正畸形情况和结核病灶愈合情况。结果经平均10 个月的随访，12 例患者脊柱结核均治愈，植骨与受骨区全部骨性融合，融合时间平均为518 个月，后凸矫正角度平均16°。全组病例切口均一期愈合。无手术并发症。结论本方法可经脊柱前路作较彻底的病灶清除，并较好地进行脊柱矫形和椎管减压，完成脊柱稳定性重建，有利于患者早期离床活动和脊柱结核治愈率的提高。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。