Tsujimoto Yumiko, Ryoke Koji, Yamagami Nobuo, Uchio Yuji, Tanaka Shigeko
Department of Orthopaedic Surgery, Wakakusa Daiichi Hospital, Japan.
Hand Surg. 2015;20(1):93-8. doi: 10.1142/S0218810415500136.
To evaluate the capability of the "Soap-Bubble" maximum intensity projection (MIP) processing technique in visualisation of extensor tendons of the hand, 36 intact subjects and seven patients with surgically confirmed extensor tendon rupture were examined. Three-dimensional T1-weighted turbo spin echo (3DT1TFE) MRI was performed using a sensitivity encoding flex coil, followed by Soap-Bubble MIP processing. For patients with extensor tendon ruptures, MRI findings and intraoperative findings were compared. As results, with only 3DT1TFE sequence, the entire extensor tendons that run along the arch of the hand were not shown on one image, but were visualised with addition of Soap-Bubble MIP. Although delineation of the extensor pollicis longus was poor in 27/43 subjects, it was much improved by the combination of water-suppression technique. MRI findings and intraoperative findings agreed in all patients. Soap-Bubble MIP processing with addition of water-suppression technique is considered useful for visualising the extensor tendons of the hand.
为评估“肥皂泡”最大强度投影（MIP）处理技术在手背伸肌腱可视化方面的能力，我们对36名健康受试者和7名经手术证实存在伸肌腱断裂的患者进行了检查。使用灵敏度编码柔性线圈进行三维T1加权快速自旋回波（3DT1TFE）MRI检查，随后进行肥皂泡MIP处理。对于伸肌腱断裂的患者，将MRI检查结果与术中所见进行比较。结果显示，仅使用3DT1TFE序列时，沿手部弓形走行的整个伸肌腱在一张图像上无法显示，但通过添加肥皂泡MIP可以实现可视化。尽管在43名受试者中有27名的拇长伸肌显示不佳，但通过水抑制技术的联合应用有了很大改善。所有患者的MRI检查结果与术中所见均相符。添加水抑制技术的肥皂泡MIP处理被认为有助于手部伸肌腱的可视化。
