50例脊柱结核的CT及X线平片表现分析

选择５０例经ＣＴ诊断及手术病理证实的脊柱结核，对ＣＴ及Ｘ线平片表现进行回顾性分析，结果表明：ＣＴ发现椎体及附件骨破坏特别是较小较轻微的骨破坏及椎管内侵犯的能力、显示死骨及局限性脓肿的能力优于平片，能区别脓肿及肉芽肿。而Ｘ线平片显示椎间隙狭窄、脊柱滑脱等优于ＣＴ。结合文献讨论了与脊柱转移瘤的鉴别诊断。     

Andrew's Liver Salt as an effervescent in upper gastrointestinal radiography

Double-contrast radiography is widely used for examination of the upper gastrointestinal tract. However, it is not practiced routinely in many developing areas, partly because of high cost of the effervescent agents. In a series of 300 upper gastrointestinal tract investigations, Andrew's Liver Salt has proven to be an effective effervescent, releasing adequate gas in more than 80% of the examinations. It disintegrates rapidly with minimal bubble formation and no artifacts. It has high patient acceptability and is very inexpensive.     

早期食管癌X线诊断(附276例分析)

目的　总结早期食管癌X线诊断的经验。方法　回顾性分析经手术病理证实及有电子纤维胃镜资料的 276例早期食管癌的食管双对比造影照片。结果　276例食管双重对比造影表现有: ( 1 )环征、半环征; ( 2 )平盘或棒状隆起; ( 3 )结节泡囊状亮区; (4)细颗粒花纹状黏膜; (5)偏侧局限性管壁凹陷增厚; (6)斑状及长条状龛影; (7)靶征; (8)缺口征及双边征。同电子纤维镜观察到的隆起、平坦、凹陷 3项基本病理学改变相一致。结论　食管双对比造影对早期食管癌的定位、定性、定量、定型和定期的诊断具有重要价值。     

儿童十二指肠淤滞综合征的临床及X线诊断(附78例分析)

目的　提高对儿童十二指肠淤滞症的临床及X线诊断的认识。方法　对确诊的78例十二指肠淤滞症的临床及X线表现进行总结分析。结果　78例均有不同程度的十二指肠水平段不全梗阻征象。72例表现为典型的十二指肠水平段纵行条状的“笔杆状”压迹,在改变体位的状态下均有不同程度的梗阻缓解。6例随体位改变梗阻无明显缓解者均有合并症。结论　十二指肠淤滞综合征的梗阻征象在俯卧位、左侧卧位、胸膝位时缓解。     

胸内壁隆凸型病变的X线影象学诊断（附120例分析）

报告120例胸内壁隆凸形病变的X线切线投影诊断，其中肿瘤类69例，感染类44例，外伤类7例，投影象分为五年基本类型。梭形、园顶形、袋形，波形，驼峰形，边缘光整锐利者89例，模糊者22例，毛糙者9例。一般呈软组织均匀致密影4，出现钙化者11例，对隆凸形病挛 命名，分型等进行了讨论。     

直接数字化曲面体层片评价颌骨萌出囊肿

目的 回顾分析了正畸患者萌出囊肿的影像学特点,以提高对萌出囊肿的认识.方法 用ChinView 6.1.3分析软件在3 182例正畸患者的直接数字化曲面体层片上测量正在萌出牙齿的牙囊间隙的最大宽度,将经两位医师测量,其牙囊间隙都大于2.5mm的定为萌出囊肿.结果 在3 182例正畸患者中发现164例患者共有萌出囊肿277个.277个萌出囊肿中有208个发生在第三磨牙(75.09%),55个发生于第二磨牙(19.86%),发生于尖牙的9个(3.25%),发生于前磨牙2个(0.72%),囊肿含多颗牙的有3个(1.08%).结论 萌出囊肿在正畸患者的检出率较高.第三磨牙为好发部位,多发性萌出囊肿常表现为对称性,大多数萌出囊肿不影响正畸治疗,但囊性病损造成牙齿萌出障碍时,应结合外科治疗.     

Hydrophilic-lipophilic balance as predictor of mucus coating with barium sulfate

In order to improve barium coating of the mucus layer covering the alimentary tract, various surface active substances are added to commercially available contrast media. The action of additives can be expressed in part by their hydrophilic-lipophilic balance (HLB). In an experimental study using human colonic mucus and barium sulfate USP, surfactants of varying HLB (range, 3–11) were used to study the range of HLB resulting in optimal coating. The best coating occurred with an HLB of 7. Quality of coating may be predicted based on knowledge of the HLB of various surface active additives.     

Radiology of the paranasal sinuses in nonhealing granulomas of the nose

Radiology of the paranasal sinuses in non-healing granulomas of the nose The few accounts of the radiographic features in the nose and sinuses of Wegener's granulomatosis and lethal midline granuloma have involved small numbers. This paper reviews these changes in 20 cases of Wegener's granulomatosis and 7 cases of lethal midline granuloma. Fifteen cases of Wegener's granulomatosis showed either negative or non-specific changes on plain sinus views. In the remaining 5 cases some evidence of bone destruction was seen. The range of changes was much greater in lethal midline granuloma. The radiographic changes varied from normal appearances (1 case) through generalized soft tissue opacity (3 cases), to massive destruction of the nasal bones and sinus walls (3 cases). The difference in radiological pattern in Wegener's and lethal midline granuloma would seem to be one of degree only.     

Periodontal regeneration of intrabony defects with resorbable and non-resorbable membranes: 30-month results

Abstract The aim of this prospective split-mouth-study was to compare the healing results in intrabony defects 12 and 30 months after placement of resorbable (polyglactin-910) and non-resorbable (e-PTFE) GTR-membranes. 11 healthy patients with 30 defects participated. 10 patients with 10 pairs of contralateral lesions, which were treated with both membrane types, were included in the split-mouth-design. Furthermore, in an additional group-design all 30 (16 polyglactin-910 and 14 e-PTFE) treated sites were evaluated. Clinical examinations (PBI, REC, PPD, PAL) and radiographic examinations were carried out under standardized conditions immediately before as well as 12 and 30 months after surgery. Additionally, for the assessment of the effectiveness of the 2 membranes by comparing the regeneration results of different defects, the vertical relative attachment gain (V-rAG) was calculated as a% of the PAL gain related to the maximum possible attachment gain (expressed by the baseline depth of the osseous defect intraoperatively measured). Digital subtraction radiography (DSR) was carried out for the quantitative assessment of bone density changes due to GTR. In the split-mouth-design, both types of membranes provided significant V-rAGs (median) after 12 months (polyglactin: 81.7%: e-PTFE: 100.0%) and after 30 months (polyglactin: 69.1%: e-PTFE: 83.8%) compared to baseline. In 90.0% of the polyglactin and e-PTFE sites, a probing attachment gain of at least 2 mm was maintained over the 30-month period. However, in 2 polyglactin treated sites, and 5 e-PTFE treated sites, a new attachment loss was found between 12 and 30 months. DSR showed bone density gain 12 and 30 months postsurgically. No statistically significant differences could be observed between the 2 membrane materials with regard to clinical and radiographic findings. This was confirmed when considering the total number of defects (group-design). In conclusion, based on this 30-month-study resorbable polyglactin membranes may be regarded as a useful alternative to the well established e-PTFE membranes for the treatment of intrabony defects.