Total colorectal and terminal ileal duplication presenting as intussusception and intestinal obstruction

Colonic intussusception and gastrointestinal duplication are diseases that arise in young children. The clinical presentation of adult cases of intussusception and enteric duplication is non-specific and thus poses a diagnostic challenge. A computed tomography (CT) scan is recommended in adult cases as the most sensitive diagnostic tool and the pathognomonic finding of outer intussuscepiens and central intussusceptum is diagnostic. A septum of a duplicated colon in a non-intussuscepted segment has been rarely reported in the literature. With advancements in radiological imaging technology and the increased availability of CT scanners, the capacity for a correct pre-operative diagnosis has been significantly enhanced. Our current case report illustrates the importance of considering an uncommon etiology for enteric intussusception and duplication as a differential diagnosis of acute abdomen in an adult patient. Our analyses of this patient also highlight the successful use of CT scanning to make this diagnosis.

基于多模型的迭代重建技术对低剂量CT结肠成像图像质量的影响

本文旨在系统综述基于多模型的迭代重建技术对低剂量CT结肠成像图像质量的影响,探讨该技术的应用前景和发展趋势。方法 收集接受结肠CT平扫和增强扫描的患者资料60例,采取随机形式将患者分组,一组应用传统低剂量CT结肠成像技术,共30例为对照组,一组应用多模型迭代重建技术,共30例为研究组,统计分析两组所获图像指标、有效辐射剂量、剂量长度乘积以及CT剂量指数之间的差异性。结果 两组CT剂量指数、有效辐射剂量和剂量长度乘积对比存在显著差异。结论 基于多模型的迭代重建技术在低剂量CT结肠成像中具有广泛的应用价值。它可以通过结合多种模型的信息,大大提高图像的清晰度和质量,同时减少辐射剂量和成像噪声。此外,多模型迭代重建技术具有较高的灵活性和可操作性,可以根据具体应用场景进行优化和调整。因此,该技术有望成为低剂量CT结肠成像领域的重要发展方向,为患者提供更加安全、高效、准确的医学影像服务。