转移灶

Further studies revealed that remnant of microscopic tumor nodules in the mesorectum contributes to the most of local failures.

进一步的研究揭示，存在于直肠系膜内的术前不易用影像学手段发现、手术中不易用手触摸到的直肠癌微转移残留灶与大多数肿瘤局部的复发相关。

Primarily focus, lymph node and ossature metastasis could be well diagnosed by WBDWI.

磁共振全身弥散技术对全身各系统的恶性肿瘤原发灶及淋巴结与骨转移灶具有很高的诊断价值。

Methods:Using Japan Shimadzu 1250Ma CCD DSA X machine,4F RH or 4F YASHIRO catheter and 3F SP microcatheter were employed in superselective chemoembolization for feeding artery of lung cancer and the metastases tumor with rich blood feeding in lung with lipiodol and 2～3 species chemodrug.The period of repetitive treatment was 4～6weeks.After treatment,the change of the symptoms,images of neoplasm and the survival rates were observed.

材料与方法：在日本岛津1250MA CCD数字减影X光机的引导下，使用4F RH或4F YASHIRO超滑导管及3F超滑微导管实施超选择性肿瘤滋养动脉插管，以超液态碘油及2～3种化疗药物对临床及病理证实的原发性支气管肺癌、肺富血供性转移瘤灶实施完全性化疗栓塞，重复治疗间隔时间4～6周，术后随访观察临床症状的变化、肿瘤的影像学改变、生存率等。

Results:(1) All of HCC were irregular hyperdense in arterial phase companioned with mass and hyperdense tumor vessels.

结果 ：( 1)肝动脉期肿瘤实质出现密度高于肝实质的肿瘤血管和瘤区强化，门静脉期其密度迅速降低，至平衡期为低密度；( 2 )肿瘤边缘于肝动脉期和门静脉期均可见环行强化；( 3)转移性子灶仅在肝动脉期明显强化，门脉期全瘤密度迅速降至等密度；( 4)门静脉受累表现为肝内分支的边缘侵蚀、破坏、中断，或为不规则的充盈缺损。

Objective:To compare the ability of planar skeletal scintigraphy and MRI in detecting vertebral matastatic foci.

目的：比较放射性核素骨显像（简称骨显像与MRI对脊柱骨转移癌灶的检出情况。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。