Ogawa Takeshi, Onishi Shinzo, Mamizuka Naotaka, Yoshii Yuichi, Ikeda Kazuhiro, Mammoto Takeo, Yamazaki Masashi
Department of Orthopedic Surgery, National Hospital Organization Mito Medical Center, 280 Sakuranosato, Ibarakimachi 311-3193, Japan.
Department of Orthopedic Surgery and Sports Medicine, Mito Clinical Education and Training Center, University of Tsukuba Hospital, Mito Kyodo General Hospital, 3-2-7 Miya-Machi, Mito 310-0015, Japan.
Diagnostics (Basel). 2023 Jan 15;13(2):319. doi: 10.3390/diagnostics13020319.
The aim of this study was to use the magnetic resonance imaging maximum-intensity projection (MRI-MIP) method for diagnostic imaging of thoracic outlet syndrome (TOS) and to investigate the stricture ratios of the subclavian artery (SCA), subclavian vein (SCV), and brachial plexus bundle (BP). A total of 113 patients with clinically suspected TOS were evaluated. MRI was performed in a position similar to the Wright test. The stricture was classified into four grades. Then, the stricture ratios of the SCA, SCV, and BP in the sagittal view were calculated by dividing the minimum diameter by the maximum diameter of each structure. Patients were divided into two groups: surgical ( = 22) and conservative ( = 91). Statistical analysis was performed using the Mann-Whitney U test. The stricture level and ratio in the SCV were significantly higher in the surgical group, while the stricture level and the ratio of SCA to BP did not show significant differences between the two groups. The MRI-MIP method may be helpful for both subsidiary and severe diagnoses of TOS.
本研究的目的是使用磁共振成像最大强度投影（MRI-MIP）方法对胸廓出口综合征（TOS）进行诊断成像，并研究锁骨下动脉（SCA）、锁骨下静脉（SCV）和臂丛神经束（BP）的狭窄率。总共评估了113例临床疑似TOS的患者。在类似于Wright试验的体位下进行MRI检查。将狭窄分为四个等级。然后，通过将矢状位上每个结构的最小直径除以最大直径来计算SCA、SCV和BP的狭窄率。患者分为两组：手术组（n = 22）和保守组（n = 91）。使用Mann-Whitney U检验进行统计分析。手术组SCV的狭窄程度和狭窄率显著更高，而两组之间SCA与BP的狭窄程度和狭窄率没有显著差异。MRI-MIP方法可能有助于TOS的辅助诊断和严重程度诊断。
