Immunochemical studies on blood groups; the methylpentose contents of hog and human blood group A and O substances and their relationship to cross-reactivity with type XIV antipneumococcus horse serum

It has been possible, by employing a new color reaction for methylpentoses, to determine the fucose content of individual hog and human blood group A, B, and O substances. The data indicate an inverse correlation between fucose content of the hog A and O substances and ability to cross-react with Type XIV antipneumococcus serum. The human A, B, and O substances display no correlation between their fucose content and ability to cross-react with Type XIV antipneumococcus serum.     

Using adiabatic inversion pulses for long-T2 suppression in ultrashort echo time (UTE) imaging.

Ultrashort echo time (UTE) imaging is a technique that can visualize tissues with sub-millisecond T(2) values that have little or no signal in conventional MRI techniques. The short-T(2) tissues, which include tendons, menisci, calcifications, and cortical bone, are often obscured by long-T(2) tissues. This paper introduces a new method of long-T(2) component suppression based on adiabatic inversion pulses that significantly improves the contrast of short-T(2) tissues. Narrow bandwidth inversion pulses are used to selectively invert only long-T(2) components. These components are then suppressed by combining images prepared with and without inversion pulses. Fat suppression can be incorporated by combining images with the pulses applied on the fat and water resonances. Scaling factors must be used in the combination to compensate for relaxation during the preparation pulses. The suppression is insensitive to RF inhomogeneities because it uses adiabatic inversion pulses. Simulations and phantom experiments demonstrate the adiabatic pulse contrast and how the scaling factors are chosen. In vivo 2D UTE images in the ankle and lower leg show excellent, robust long-T(2) suppression for visualization of cortical bone and tendons.     

125I粒子组织间置入治疗骨转移瘤

目的探讨^125I粒子组织间永久置入在骨转移瘤中的治疗价值。方法对22例不同来源骨转移瘤患者采取^125I粒子永久置入的方法进行治疗，观察治疗后骨痛缓解及术后病灶影像改变的情况。结果^125I粒子永久置入治疗骨转移瘤止痛有效率为91％（20／22），术后2个月粒子置入病灶的影像检查结果显示，32个骨转移灶中，完全缓解（CR）4个、部分缓解（PR）18个、稳定（NC）10个，总缓解率68．7％，所有患者均未出现严重不良反应。结论组织间永久置入^125I粒子治疗骨转移瘤止痛效果好，不良反应发生率低且程度轻，是一种疗效较好的治疗方法。     

妊娠期肝内胆汁淤积症病人的护理

妊娠期肝内胆汁淤积症(intrahepatic cholestasis of prenancy,ICP)是妊娠期特有的一种并发症,多发生于妊娠中期、晚期,表现为皮肤瘙痒和黄疸,主要危害胎儿,可导致早产、羊水胎粪污染及胎儿宫内窘迫,甚至死胎.目前已受到产科临床工作者的高度重视.我院自2000年1月-2004年11月收治ICP病人173例,经过积极治疗、严密监护、适时终止妊娠,母婴情况良好.现将有关护理总结如下.……     

Quantitative ultrasound at the hand phalanges in 2850 females aged 7 to 77 yr: a cross-sectional study.

In the study, skeletal status was evaluated in 2850 females aged 7 to 77 yr using quantitative ultrasound (QUS amplitude-dependent speed of sound [Ad-SoS]). Ad-SoS ranged from 1923 +/- 30 to 1876 +/- 81 m/s, and the peak value (2121 m/s) was achieved in 19-yr-old females. Ad-SoS increased significantly between subgroups aged 11 and 12 yr, 12 and 13 yr, 13 and 14 yr, 14 and 15 yr, and 15 and 16 yr. After the age of 19 yr the only significant drop was noted between age groups 47 and 48 yr. Ad-SoS was regressed on age, weight, and height for age ranges 7 to 11 yr.(before an increase in Ad-SoS), 12 to 19 yr (from the onset of the increase to the peak value), and older than 19 yr to menopause. In females after menopause, years since menopause (YSM) were taken into consideration. In the two youngest groups Ad-SoS was affected positively by age, and in the two next groups, age had a negative influence on Ad-SoS, whereas weight had a negative and height a positive influence in all groups. YSM did not influence the Ad-SoS value. It was concluded that QUS measurements at the hand phalanges are a useful tool in assessment of skeletal status in the female population.     

听神经病的纯音听阈检查结果分析

目的 探讨听神经病纯音听阈(PTT)检查的特征。方法 对48例听神经病患者的PTT检查结果进行分析，并与耳蜗性聋进行对照比较。结果 听神经病的PTT图有上升型、峰型、匙型、W型、倒S型、水平型和缓降型。双耳对称的PTT图有38例，不对称的有10例。听神经病的听阈升高程度呈轻、中度。左右耳听阈升高程度基本一致。低频听阈升高或以低频听阈升高为主的PTT图型占93．75％(90／96耳)。结论 双耳对称或基本对称的低频听阈升高或以低频听阈升高为主是听神经病的重要特征。     

原发性单纯性脑干出血52例临床研究

目的研究原发性单纯性脑干出血的病因、诊断、治疗、预后及预防。方法对52例原发性单纯性脑干出血的临床资料进行回顾性分析。结果预后良好25例，优良率为48．1％；死亡21例，死亡率40．4％；出血量≤5．0ml死亡率21．9％（7／32），出血量≥5．1ml死亡率70．0％（14／20），出血量〉10.0ml 10例全部死亡。结论原发性单纯性脑干出血发病急，病情重，死亡率高，预后差；高血压为本病的主要发病原因；CT是原发性单纯性脑干出血的安全、可靠诊断方法；适时进行气管切开及亚低温治疗能有效提高疗效及降低死残率；严格控制血压是预防原发性单纯性脑干出血的重要措施。     

椎动脉形态学异常对后循环短暂性脑缺血发作症状持续时间的影响

目的 探讨椎动脉形态学异常对后循环TIA症状持续时间的影响。
方法 回顾性分析2015年10月-2018年3月在中国科学院大学重庆仁济医院神经内科完成头颈部DSA
或CTA的后循环TIA住院患者临床资料，根据症状持续时间分为<10 min组、10～59 min组和≥60 mi n组，
比较椎动脉形态异常各亚型在3组间的差异。通过多因素Logistic回归分析明确椎动脉形态异常与后
循环TIA症状持续时间之间的关系。
结果 共纳入237例患者，其中症状持续时间<10 min组109例（45.99%）、10～59 min组71例（29.96%）
和≥60 min组57例（24.05%）。一般临床资料的比较显示，性别、椎动脉和基底动脉狭窄率≥50%
在3组间差异具有统计学意义（P＜0.05）。椎动脉形态异常中，动脉粥样硬化性椎动脉狭窄（狭窄
率1%～99%）在3组间的差异具有统计学意义（P =0.004），而一侧迂曲、双侧迂曲、一侧优势、一
侧优势合并迂曲和起源异常在3组间差异均无统计学意义；多因素Logi sti c回归分析显示椎动脉
狭窄（OR 2.500，95%CI 1.381～4.525，P =0.002）、基底动脉狭窄率≥50%（OR 12.066，95%CI
1.446～100.668，P =0.021）是TI A症状持续时间延长的独立影响因素。
结论 椎动脉狭窄和基底动脉狭窄率≥50%是影响后循环TIA症状持续时间延长的独立影响因素。