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脊柱感染(spinal infection,SI)是一种由致病菌沿中轴骨血行播散[1]引起的疾病,主要表现为椎间盘炎、椎体骨髓炎和脊椎脓肿,根据发病部位可将脊椎脓肿分为脊髓硬膜外脓肿、脊髓脓肿、腰大肌脓肿及椎旁脓肿等。SI按病理类型分为脊柱结核、化脓性脊柱炎和布鲁氏杆菌脊柱炎等。金黄色葡萄球菌是SI最常见的致病菌,其次是结核杆菌[2]。SI的症状通常是非特异性的,严重者可出现脊柱畸形、神经功能损伤、瘫痪甚至病死。虽然MRI是诊断SI的首选影像学检查方法,但其可能无法显示出所有病灶。18F-FDG PET/CT作为一种一站式的全身检查方法,在鉴别感染原发灶和脊柱术后感染等方面较具优势[3]。此外,18F-FDG PET/CT还可用于SI的疗效评估。MRI是目前临床实践中最常用的SI诊断方法,但在诊断和鉴别诊断等方面亦有其局限性。我们主要就18F-FDG PET/CT在SI诊治中的应用及其与MRI的比较进行综述。
18F-FDG PET/CT在脊柱感染诊治中的应用及与MRI的比较
Application of 18F-FDG PET/CT in the diagnosis and treatment of spinal infection and comparison with MRI
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摘要: 脊柱感染(SI)是一种由致病菌沿中轴骨血行播散引起的疾病。虽然MRI是诊断SI的首选影像学检查方法,但在诊断和鉴别诊断等方面亦有其局限性。18F-氟脱氧葡萄糖(FDG)PET/CT作为一种一站式的全身检查方法,在鉴别感染原发灶和脊柱术后感染及评估治疗疗效等方面较具优势。笔者重点从SI的诊断、鉴别诊断和疗效评估三个方面综述18F-FDG PET/CT在SI诊治中的应用及其与MRI的比较。
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关键词:
- 骨疾病,感染性 /
- 正电子发射断层显像术 /
- 体层摄影术,X线计算机 /
- 氟脱氧葡萄糖F18 /
- 磁共振成像
Abstract: Spinal infection (SI) is a disease caused by pathogenic bacteria spreading along the axial skeleton. Although MRI is the first imaging examination method for SI diagnosis, it has some disadvantages in diagnosis and differential diagnosis of SI. And 18F-FDG PET/CT, as one-stop general check-up method, is superior to MRI in identifying specific primary lesion and postoperative infection, and evaluating treatment response. The review mainly includes the clinical application of 18F-FDG PET/CT in early diagnosis, differential diagnosis and therapeutic efficacy evaluation of SI and compares it with MRI. -
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