Capsule endoscopy of the future: What's on the horizon?

Capsule endoscopes have evolved from passively moving diagnostic devices to actively moving systems with potential therapeutic capability. In this review,we will discuss the state of the art, define the current shortcomings of capsule endoscopy, and address research areas that aim to overcome said shortcomings.Developments in capsule mobility schemes are emphasized in this text, with magnetic actuation being the most promising endeavor. Research groups are working to integrate sensor data and fuse it with robotic control to outperform today's standard invasive procedures, but in a less intrusive manner. With recent advances in areas such as mobility, drug delivery, and therapeutics, we foresee a translation of interventional capsule technology from the bench-top to the clinical setting within the next 10 years.

肩袖损伤的低场MRI诊断价值

目的评价开放式低场MRI检查在肩袖撕裂和肩关节盂唇损伤中的诊断价值。方法搜集2002年11月-2009年8月临床有撞击综合征或疑似肩袖损伤并于手术前行0.23TMRI检查患者共52例,以常规外科手术或关节镜作为诊断标准,统计MRI诊断的敏感度、特异度、准确度和阳性预测值。结果手术发现44例肩袖损伤和11例关节盂唇损伤。肩袖撕裂中,MRI检查的敏感度为95%,特异度为88%,准确度为94%,阳性预测值为98%;其中肩袖完全撕裂的敏感性为96%,肩袖部分撕裂MRI的敏感度为73%。关节盂唇损伤的检测敏感度、特异度、准确度和阳性预测值分别为75%、95%、90%和82%。结论本试验中肩袖撕裂和关节盂唇损伤的低场MRI诊断与手术结果较为一致。