食管癌肉瘤的临床及X线诊断

目的:分析食管癌肉瘤的临床X线特征,提高对本病的认识。方法:9例食管癌肉瘤行钡餐检查。结果:本病好发于食管中段,以腔内息肉样充盈缺损并伴有分叶、局部食管扩张为特征,它可以带蒂,一般不引起梗阻。结论:本病临床症状出现晚,病史较长,结合钡餐检查的腔内息肉样充盈缺损,应考虑食管癌肉瘤,本病均需组织学检查才能确诊。     

食管癌肉瘤的临床及X线诊断

目的；分析食管癌肉瘤的临床X线特征，提高对本病的认识。方法：9例分管癌肉瘤行钡餐检查。结果：本病好发于食管中段，以腔内息肉样充盈缺损并伴有分叶，局部食管扩张为特征，它可以带蒂，一般不引起梗阻。结论：本病临床症状出现晚，病史较长，结合钡餐检查的腔内息肉样充盈缺损，应考虑食管癌肉瘤，本病均需组织学检查才能确诊。     

温度敏感性液体栓塞材料的体外实验研究

目的合成一种新型温度敏感性液体栓塞材料,并探讨其栓塞脑动静脉畸形(AVM)的可能性。方法应用氮-异丙基丙烯酰胺和氮-正丙基丙烯酰胺合成共聚物,进行物理性质测定和体外AVM模型栓塞试验。结果共聚物具有低临界溶解温度(LCST)特性,具有水溶性和非黏附性等特点,能成功栓塞体外AVM模型。结论该共聚物为一种脑AVM血管内栓塞治疗的新型液体栓塞材料,可进一步用于动物实验。     

癌性支气管狭窄的记忆合金支架治疗

我院自１９９６年以来,对支气管狭窄病人进行了放置支架治疗,其中３０例为癌性支气管狭窄,此方法对缓解病人症状,改善生活质量、赢得治疗时间、延缓病人生命有重要意义。１材料和方法３０例中男１９例,女１１例,年龄３５～７１岁。全组病例均经纤支镜、活检病理和细...     

胎儿罕见食管闭锁并气管食管瘘一例

孕妇31岁，妊娠33周。产科疑羊水过多而行超声检查。孕妇曾因50d早孕人工流产1次。否认近亲结婚、妊娠期间患病及服用药物史。     

急性缺血性脑卒中的MSCT综合影像与溶栓治疗

临床溶栓治疗技术的开展，对急性缺血性脑卒中患者的影像学检查提出了更高的要求。溶栓治疗在发病3—6h内进行，才能获得较好的效果。多层螺旋CT可在较短时间内对急性缺血性脑卒中患者进行CT平扫、CT灌注成像与CT血管成像的综合影像评价，获得多方面的信息，以指导临床选择最佳治疗方案。     

前瞻性心电门控双源CT冠状动脉成像在高心率患者中应用的可行性研究

Objective To explore the optimal reconstruction windows in patients with heart rate (HR) over 91 (beats per minute) bpm, and to explore the feasibility of prospective ECG-gated DSCT coronary angiography.Methods Two hundred and thirty-two patients[body mass index (BMI):23-25 kg/m2, with stable HR, and average HR ≥91 bpm]with suspected or known coronary artery disease underwent retrospective ECG-gated DSCT coronary angiography.They were divided into 3 groups (A-C) according to the average HR of scanning.Images were reconstructed from 29% to 80% of the R-R interval in 3% increments.Two independent readers assessed the overall image quality by a five-point scale and determined the optimal reconstruction windows of each coronary segment and the ranges.Coronary arteries were segmented according to the guideline of the American Heart Association (AHA).The degree of interobserver agreement was determined by Kappa statistics.Results Three thousand three hundred and fortythree segments were considered to have diagnostic image quality in 232 patients.The ranges of optimal reconstruction windows of images were concentrated on 81%-61% and 51%-31%.In group A(91-95 bpm), there were 1183 segments in 83 patients, and the according proportions were 5.49%, 94.51%,respectively; In group B(96-100 bpm), there were 986 segments in 68 patients, and the according proportions were 0.20%, 99.80%, respectively; In group C(≥ 101 bpm), there were 1174 segments in 81 patients, and the according proportions were 0.17%, 99.83%, respectively.The optimal construction windows in 3274 segments out of 3343 segments in 232 patients were concentrated in 41%, ranged from 51%-31%.The image quality assessment in 3343 segments in 232 patients have a high inter-observe agreement (Kappa=0.883,P <0.05).Conclusion The optimal reconstruction windows of patients with stable HR(≥91 bpm) was concentrated in 41%, ranged from 51%-31%.When nothing except the window of data acquisition is considered, the prospective ECC,-gated DSCT coronary angingraphy can be used in patients with stable HR(≥91 bpm).     

多层螺旋CT成像技术在结肠肿瘤诊治中的应用

目的：应用多层螺旋CT成像技术对结肠肿瘤者进行前瞻性研究，旨在提高多层螺旋CT在结肠肿瘤的诊断水平。方法：通过对30例结肠肿瘤病人的MSCT轴位图像和重建的4-D、MIP及仿真内窥镜图像进行观察分析，并与相应的钡灌肠及纤维结肠镜结果进行对照性研究。结果：全部病例诊断符合率为100％，仿真内窥镜结果与纤维结肠镜结果基本吻合。结论：多层螺旋CT在结肠肿瘤的诊断中具有独特的优越性。     

0.23 T开放性磁共振实时引导下经皮激光热消融术 治疗肝脏恶性肿瘤

目的 评价肝脏肿瘤在磁共振介入激光治疗中的热消融变化及光学器械追踪系统对激光纤维的精确定位和实时监测激光治疗中热消融变化的能力，观察激光消融治疗肝脏恶性肿瘤的可行性与安全性。方法 对经病理学活检证实的14例恶性肝脏肿瘤患者(4例为肝细胞癌，10例为肝转移瘤，共22个肿瘤)进行0．23T开放性磁共振成像系统与介入引导下经皮激光热消融治疗术。结果 全部病灶均被成功定位、靶定并消融治疗。肿瘤形态、术后瞬间及3天后热消融形成的凝固坏死灶均在磁共振图像上显示。除1例有部分残余外，所有热消融灶均大于各自原始肿瘤大小；术后3天热消融凝固灶大于术后瞬间凝固灶。结论 磁共振引导经皮肝脏肿瘤激光热消融术是可行和安全的；光学追踪系统引导与磁共振温度监测对准确估计热治疗效果是有用且可信赖的工具。     

小儿降结肠、乙状结肠重复畸形1例

患儿 女．6岁。便秘2年，持续性加重2个月而就诊。查体：心肺来见异常，腹部平坦、软，于左下腹触及一长条状包块，界限欠清、质硬、稍活动、无压痛，肝脾未触及，肠鸣音正常。