Kariya Y, Itoh M, Nakamura T, Yagi K, Kurosawa H
Department of Orthopedics, Jichi Medical School, University of Tokyo, Japan.
Acta Orthop Scand. 1989 Jun;60(3):322-5. doi: 10.3109/17453678909149286.
In 21 patients with injury-related, chronic, anterior cruciate ligament insufficiency, 1H-magnetic resonance (MR) imaging and 31P-MR spectroscopy of the quadriceps muscles were performed with a systemic superconductive MR apparatus. The quadriceps of the noninjured side was used as the control. The quadriceps had a reduced cross-sectional area, but the knee flexors were not reduced. T2 values were prolonged in the vastus lateralis, medialis, and intermedius, but those of the rectus femoris were not. Phosphocreatine per inorganic phosphate measured with 31P-MR spectroscopy was decreased in the atrophied muscles, which correlated with the muscular cross-section. There was no difference in the muscular pH as recorded by the chemical-shift measurements of phosphocreatine and inorganic phosphate. Serial measurements of muscle cross-sectional area and high-energy phosphate bonds reflect the recovery of muscles.
对21例与损伤相关的慢性前交叉韧带功能不全患者，使用全身超导磁共振设备对股四头肌进行了氢质子磁共振（MR）成像和磷-31磁共振波谱分析。以未受伤侧的股四头肌作为对照。股四头肌的横截面积减小，但膝部屈肌未减小。股外侧肌、股内侧肌和股中间肌的T2值延长，但股直肌的T2值未延长。通过磷-31磁共振波谱分析测得的萎缩肌肉中磷酸肌酸与无机磷酸盐的比值降低，这与肌肉横截面积相关。通过磷酸肌酸和无机磷酸盐的化学位移测量记录的肌肉pH值没有差异。肌肉横截面积和高能磷酸键的系列测量反映了肌肉的恢复情况。
