避免冲片机重大故障经验1例

冲片机由于卡片，请维修人员修复，后值班人员发现冲出的胶片无影像，关掉冲片机电源，停止使用。     

MRI对累及头颈部淋巴组织病变的鉴别意义

目的:基于累及头颈部淋巴组织病变的临床不典型性,旨在探讨MRI对其进行鉴别诊断的客观依据。方法:对本组22例可疑累及头颈部淋巴组织的各类病变进行MRI检查并与病理学结果进行对照。结果:MRI对本组22例累及淋巴组织病变的诊断与病理学诊断的符合率(21/22)约为95%。结论:MRI是对累及头颈部淋巴组织病变的重要检查手段,并能为明确其诊断提供客观依据。     

计算机图像处理系统在医学影像诊断学教学中的应用

计算机图像处理系统在医学影像诊断学教学中的应用聂生东，于富华为改变我国医学影像专业教学手段及设施的落后面貌，我们借鉴国外医学影像专业教学的经验，引进了一套计算机图像处理系统，并对其进行了二次开发，应用于医学影像专业影像诊断学的教学中，该系统具有效高的...     

高电压胸部摄影诊断和防护效果研究

作者以体模实验为基础。测定了不同管电压拍摄胸片时的病人剂量，考察了提高管电压对胶片影像质量的影响，结果表明，使用高电压拍摄胸片比使用低电压有利于降低病人剂量，在增加影像信息量，提高肋骨阴影区和纵膈区灶检出率方面更有较大优越性，此外，使用高电压技术不家利于延长Ｘ射线管的使用寿命。     

DICOM网络激光打印机共享问题1例

随着DICOM3．0在影像设备中的广泛采用，越来越多的数字影像设备通过DICOM3．0打印服务输出影像到网络激光打印设备。作为网络共享激光打印设备本应得到高度共享，但实际应用中出现了共享障碍，通过一个典型共享障碍实例，探讨共享障碍的原因。     

迎接数字化时代的到来

当我们充满自豪即将送别猴年，又欢欣鼓舞迎接鸡年到来之时，《中华放射学杂志》第39卷开卷了!     

“全国人体断面数据获取与图像处理研讨会”在山东大学医学院召开

由中国数字人研究联络组和中国解剖学会断层影像解剖学专业委员会主办、山东大学医学院承办的“全国人体断面数据获取与图像处理研讨会”，2005年4月16日～18日在山东大学医学院召开。     

探讨快速维修现代放射影像设备的基本方法与步骤

介绍快速确定现代放射影像设备故障的所在部位与原因的方法与步骤,简述了11种快速维修的基本方法.     

A novel access method for endovascular procedures in the porcine model

Objective To evaluate the use of the saphenous artery as an alternative access for endovascular procedures in the porcine model. Methods Fourteen adult pigs (25-35kg) were used in this study, 3 pigs from an acute study and 11 from chronic studies. A 2-3 cm incision was made and a saphenous artery cutdown was performed in 24 sides. Micropunc ture sets (Boston Scientific) or 18 G puncture needles were used to access the artery. Different sizes of introducers (4-7F) were used to establish endovascular access. Angiographic catheters were then used to confirm if the access was usable. Four saphenous arteries were explanted in the pigs from a chronic study 4 to 28 days after surgical procedure. Results The saphenous artery was very easy to expose and 4-5 F introducer sheaths were able to be inserted to establish access for endovascular procedures in the pigs. The saphenous artery was unable to accomodate an introducer with a size larger than 6 F. Four saphenous arteries were injured when 5 and 6 F introducers were used, but angiographic procedures could still be performed. Morphologic evaluation of the explanted arteries demonstrated occlusion of the saphenous arteries without injury or disruption of the adjacent femoral arteries. Conclusion The saphenous artery can be used as an access site in pigs for angiographic and interventional procedures if the catheter size is less than 6 F. This vessel is easier to access and can preserve the femoral artery for repeat procedures in the future.     

DICOM3．0私有数据元素分类编码方案

根据HIS和PACS的应用需求，分析了现有医学图像分类方法，结合DICOM3．0标准，对DICOM3．0标准中私有数据元素提出一个新颖简便的编码方案。编码由4个部分组成：(1)影像设备技术代码；(2)体位方向代码；(3)解剖学代码；(4)生物系统代码。用来描述医学图像内容，加强医学医疗信息在HIS和PACS系统间的可靠传输。