首页> 外文期刊>British Journal of Radiology >The incidence and diagnostic relevance of chemicai shift artefact in the magnetic resonance imaging characterisation of superficial soft tissue masses.
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The incidence and diagnostic relevance of chemicai shift artefact in the magnetic resonance imaging characterisation of superficial soft tissue masses.

机译:浅析浅析软组织块磁共振成像特征中Chemicai换档人工的发病率及诊断相关性。

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Objective: Chemical shift artefact (CSA) is often encountered during MRI evaluation of superficial soft tissue masses. The study aim was to determine the incidence and diagnostic relevance of CSA in a consecutive series of superficial soft tissue masses referred to a specialist musculoskeletal sarcoma service. Methods: All patients referred over a 6 month period with a non-lipomatous superficial soft tissue mass were prospectively analysed. Patients characteristics (age, gender), lesion features (anatomical location, size, relationship to the skin and deep fascia), presence of CSA and final histopathological diagnosis were collected. The presence of CSA was statistically analysed against these clinical, imaging and histopathological variables. Results: 128 patients fulfilled the inclusion criteria [63 males, 65 females; mean age = 50.6 years (7-96 years)]. CSA was present in 50 cases (39.1%) overall, but in 39 (41.5%) of 94 cases with histological diagnosis. There was no statistically significant relationship to any assessed variable apart from relationship to the deep fascia, CSA being more frequent in lesions contacting the fascia compared to lesions contacting both skin and fascia (p-value 0.02). In particular, the presence of CSA did not allow differentiation between non-malignant and malignant lesions. Conclusion: The presence of CSA is a not infrequent finding in the MRI assessment of superficial soft tissue masses but does not appear to be of any significance in differentiating between non-malignant and malignant lesions. Advances in knowledge: CSA is a relatively common finding in association with superficial soft tissue masses, but does not indicate a particular histological diagnosis or help in the differentiation of non-malignant from malignant lesions.
机译:目的:在浅表软组织群体的MRI评估期间常常遇到化学换档艺术品(CSA)。研究目的是确定CSA在连续系列浅表软组织群中的发病率和诊断相关性,提到了专科肌肉骨骼肉瘤服务。方法:前瞻性地分析了在6个月内提到的患者6个月内提到的患者。患者的特征(年龄,性别),病变特征(解剖定位,大小,与皮肤和深筋膜的关系),CSA的存在和最终组织病理学诊断。针对这些临床,成像和组织病理学变量进行统计分析CSA的存在。结果:128名患者符合纳入标准[63名男性,65名女性;平均年龄= 50.6岁(7-96岁)]。 CSA在50例(39.1%)总体上存在,但在39例(41.5%)中有94例,组织学诊断。除了与深筋膜的关系外,CSA在与皮肤和筋膜联系的病变相比,CSA在与筋膜相比的病变相比,CSA的统计学上没有统计学上显着的关系。特别地,CSA的存在不允许在非恶性和恶性病变之间分化。结论:CSA的存在是浅表性软组织群体MRI评估的不常见发现,但在不同恶性和恶性病变之间似乎并不具有重要意义。知识的进展:CSA与浅表软组织群体结合的相对常见的发现,但并未表明特定的组织学诊断或帮助非恶性病变的分化。

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