四肢关节软骨成像的正常变异、成像伪影及其他诊断误区

John H. Schilling, Paulo Miro, Brian Y. Chan
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引用次数: 0

摘要

导言四肢关节软骨成像是一个复杂的课题,通过成像、手术和软骨病理保守治疗的进步,这一课题不断得到完善。本综述将概述软骨成像的基本概念,重点是磁共振成像,包括讨论可能被误认为是异常软骨的魔角、化学位移和易感性伪影。方法回顾成像和关节镜文献中描述的变异软骨解剖和成像伪影,并从犹他大学图片存档和通信系统(PACS)中检索示例。结果介绍了将病理软骨与正常变异附属骨、联盟、分区和正常唇的预期外观区分开来的工具。结论影像学、关节镜和临床发现的相关性是减少诊断困境、防止无意中高估疾病和确保适当干预的关键。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Normal variants, imaging artifacts, and other diagnostic pitfalls in articular cartilage imaging of the extremities

Introduction

Imaging of the articular cartilage of the extremities is a complex topic that is continually refined through advancements in imaging, surgery, and conservative management of chondral pathology. However, there are many commonly encountered pitfalls in articular cartilage imaging, which are critical for both radiologists and surgeons to be aware of.

Objectives

This review will overview the basic concepts of imaging of the cartilage, with a focus on magnetic resonance imaging, including a discussion of magic angle, chemical shift, and susceptibility artifacts that can be mistaken for abnormal cartilage.

Methods

A review of described variant cartilage anatomy and imaging artifacts from the imaging and arthroscopic literature is undertaken with illustrative examples retrieved from the University of Utah picture archiving and communication system (PACS).

Results

Tools for distinguishing pathologic cartilage from the expected appearance of normal variant accessory ossicles, coalitions, partitions, and the normal labrum are introduced. Joint-specific considerations of commonly encountered cartilage-related entities in the shoulder, elbow, wrist, hip, knee, ankle, and foot are also reviewed.

Conclusions

Correlation of imaging, arthroscopic, and clinical findings is key to reducing diagnostic dilemmas, preventing inadvertent overestimation of disease, and ensuring appropriate intervention.

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