Diagnostic performance of advanced tomosynthesis in patients with metal devices in the affected knee: a case report.

IF 1.2 4区 医学 Q2 MEDICINE, GENERAL & INTERNAL Journal of Nippon Medical School Pub Date : 2024-06-18 DOI:10.1272/jnms.JNMS.2025_92-101
Yasushi Oshima, Tokifumi Majima
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Abstract

Simple radiography is the most frequently and widely available technology to examine bone pathologies. Computed tomography (CT) can evaluate pathologies more accurately in multiple planes and three dimensions; however, radiation exposure is much higher than with simple radiography. In addition, diagnostic ability is decreased for both technologies when metal devices are present. Tomosynthesis is a radiographic technology used to evaluate tissues quasi-three-dimensionally with less radiation exposure. Tomosynthesis technology was recently upgraded to reduce the effects of metal artifacts. This case report compares examination time, medical expense, image resolution, and radiation exposure for upgraded tomosynthesis, simple radiography, CT, and standard tomosynthesis in three patients with metal devices in the affected knees. Examination times were similar for the imaging technologies. Diagnostic performance was better for upgraded tomosynthesis than for simple radiography and standard tomosynthesis, and similar to that for CT. Moreover, radiation exposure and expense were higher for tomosynthesis than for simple radiography but lower than for CT. These findings suggest that upgraded tomosynthesis is the best method for evaluating bone pathology when metal devices are present and radiation exposure must be limited.

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先进断层扫描对患膝关节金属装置患者的诊断效果:病例报告。
简单的射线照相术是检查骨骼病变最常用、最广泛的技术。计算机断层扫描(CT)可在多个平面和三个维度上更准确地评估病变,但辐射量远高于简单的射线照相术。此外,如果存在金属装置,这两种技术的诊断能力都会下降。Tomosynthesis 是一种放射摄影技术,用于对组织进行准三维评估,辐射量较少。Tomosynthesis 技术最近进行了升级,以减少金属伪影的影响。本病例报告比较了升级版断层合成术、简单放射摄影、CT 和标准断层合成术对三名患膝有金属装置的患者的检查时间、医疗费用、图像分辨率和辐射暴露。各种成像技术的检查时间相似。升级断层扫描的诊断效果优于简单放射摄影和标准断层扫描,与 CT 相似。此外,断层合成术的辐射量和费用高于简单放射摄影,但低于 CT。这些研究结果表明,当存在金属装置且必须限制辐射照射时,升级断层合成术是评估骨病理学的最佳方法。
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来源期刊
Journal of Nippon Medical School
Journal of Nippon Medical School MEDICINE, GENERAL & INTERNAL-
CiteScore
1.80
自引率
10.00%
发文量
118
期刊介绍: The international effort to understand, treat and control disease involve clinicians and researchers from many medical and biological science disciplines. The Journal of Nippon Medical School (JNMS) is the official journal of the Medical Association of Nippon Medical School and is dedicated to furthering international exchange of medical science experience and opinion. It provides an international forum for researchers in the fields of bascic and clinical medicine to introduce, discuss and exchange thier novel achievements in biomedical science and a platform for the worldwide dissemination and steering of biomedical knowledge for the benefit of human health and welfare. Properly reasoned discussions disciplined by appropriate references to existing bodies of knowledge or aimed at motivating the creation of such knowledge is the aim of the journal.
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