内腔

Six consecutive cardiac phases in 2 cirsoid aneurysms were selected to characterize the intra-aneurysmatic flow.

选择6个相继的心动时刻来显示流腔内的流动。

The median part of the middle fossa, the lateral part of the superior clivus and the trigeminal nerve in the Meckel cave could be exposed via a retrosigmoid suprameatal approach.

采用乙状窦后经内耳道上入路，可将乙状窦后入路的手术野扩大到颅中窝的中线侧和上斜坡侧方，并可显露Meckel腔内的三叉神经。

The fundamental imaging features of osteosarcoma were showed bone destruction, periosteal reaction, neoplastic bone and soft-tissue mass. Among 49 cases examined by radiography, osteoblastic pattern sarcoma was found in 19 cases, osteolytic pattern sarcoma was found in 13 cases and mixed pattern sarcoma was found in 17 cases. The detection rates of bone destruction, periosteal reaction, soft-tissue mass, neoplastic bone and Codman triangle by radiography were respectively 61.2%, 95.9%, 71.4%, 73.5%and 27.7%. All 10 cases with CT scan were showed bone destruction, soft - tissue mass and neoplastic bone. The detection rates of periosteal reaction,憇ieve sign挶 and Codman triangle with CT scan were respectively 90%, 90% and 11%. The tiny neoplastic bone and"sieve sign"were showed sensitively by CT, but Codman triangle was showed by radiography superior to CT.32 cases with MRI scan presented the normal marrow was replaced by the tumor, which was showed low to intermediate signal intensity on T1-weighted images and promiscuity signal intensity on T2-weighted images. 7 cases presented hemorrhage and 24 cases presented necrosis.

骨肉瘤基本影像表现为骨质破坏、骨膜反应、瘤骨和软组织肿块。49例X线表现为成骨型19例，溶骨型13例，混合型17例；X线对骨质破坏、骨膜反应、软组织肿块、瘤骨和Codman三角的检出率分别为61.2%、95.9%、71.4%、73.5%和27.7%；10例CT表现均可见骨质破坏、软组织肿块及瘤骨，CT对骨膜反应、筛孔征和Codman三角的检出率为90%、90%和11%；CT对显示细小肿瘤骨和筛孔征最敏感，但对Codman三角的显示不如X线平片；32例MRI表现为骨髓腔内正常的骨髓高信号被肿瘤信号所取代，T1WI呈低～等信号，T2WI呈混杂信号，7例合并出血，24例中央坏死囊变，32例增强扫描均呈不均匀强化及瘤周可见水肿区。

CT displayed the structure of femoral head was vague. A piece of coloboma could be observed clearly on the cartilage of a femoral head. Medullary canal was almost filled with white adipose tissue. Osteoblasts and osteocytes decreased. Empty bone lacuna increased. Thrombus distributed widely in the bone tissue microcirculation.

MA组病理检查肉眼可见股骨头软骨面局部缺损，坏死面暴露，髓腔内大量脂肪组织堆积；光镜下成骨细胞、骨细胞均减少，空骨陷窝增多，微小血栓广泛分布，变形扩大的脂肪细胞挤压正常骨髓组织细胞，骨小梁变细破裂明显。

8Neoplastic bone or neoplastic calcified cartilage: the former demonstrate ill-defined patched, radial or conglomeratic high density area in CT; the latter demonstrate spotty or circled high density in CT.

MR检查显示软组织肿胀I度2例，n度6例，nl度6例。3例显示脓肿样囊腔，在MR DWI上均呈明显高信号。1例显示脂液平面。1例显示软组织肿块。14例MR检查均未见软组织内气体。70例恶性骨肿瘤病人中，54例行CT检查，49例行MR检查。

Results 6 patients with PAP presented with ground-glass opacification of the bilateral lungs on HRCT. Typical chest HRCT scan showed "map-like" lesions in 3 cases and "cobble stone-like" lesions in 3 cases. Multifocal consolidative opacities in the lungs were seen on HRCT in 3 cases. Lung biopsies from 6 patients with PAP revealed a prominent positive periodic acid-Schiff intra-alveolar exudates. There were normal alveolar spetasis in 3 patients while interstitial thickening, fibroblast hyperplasia, interstitial fibrosis in the others.

结果 6例患者在不同层面可见磨玻璃影，其中2例可见小结节影；3例表现为两肺斑片状磨玻璃影与周围肺组织分界清楚，呈地图样改变；3例因磨玻璃影与小叶间隔增厚交织成铺路石样改变；3例可见肺泡实变融合成密度较高的斑片状阴影，1例在肺泡实变区可见&空气支气管征&。6例患者活检肺组织在光镜下显示肺泡腔内充满大量块状或颗粒状嗜伊红物质，PAS染色阳性，AB染色阴性，其中3例肺泡间隔正常，3例肺泡间隔增宽，可见慢性炎性细胞浸润、成纤维细胞增生和胶原沉积。

Joint effusion were in 5,the tibial ligament sprains in 2 and tears in 1,the fibular collateral ligaments sprains in 1,MR appeared contusive ligaments as irregular hyperitensity in swollen ligament,and teared ligament present as diffusive hyperintensity and total or partial interruption in the injuried ligaments.

其中关节腔积液5例，内侧副韧带损伤2例，部分撕裂1例，外侧副韧带损伤1例，损伤韧带表现为韧带不同程度增粗，正常低信号内出现不规则高信号；撕裂表现为韧带明显增粗，呈弥漫性高信号，韧带的连续性部分或完全中断。

There were no signs of bleed ing into the peritoneal cavity nor of pneumothorax, but the head and neck became increasingly cyanosed and the jugular veins considerably distended.

没有迹象表明腹膜腔内有出血，也没有气胸体征，但头颈部越来越变得呈青紫色，颈静脉明显怒张。

Results In the all 64 patients all showed the ultrasound expresion of the brain structure misty, intracerebral ehco-enhanced area or cysted cavity to some certain.

结果64例患者均不同程度显示脑结构模糊不清、脑实质内回声增强区或囊腔形成等声像表现。

They should be well dimensioned to minimize pressure and temperature losses. Sharp edges and flow restrictions

流道系统保证熔体在模腔内的均匀分布，对于填充尼龙，流道要设计合适的尺寸，以尽量降低压力和温

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。