Abstract
Objective.To investigate the MRI findings of acute sports injury of the gastrocnemius muscle and to provide evidence for clinical diagnosis. Methods. The MRI imaging data of 16 cases of gastrocnemius muscle group sports injury were compared, analyzed, and collated. In this paper, the variation of MRI image entropy before and after gastrocnemius muscle injury was studied by using the texture characteristics of the muscle image. Results. The experiment demonstrated that the entropy of MRI images before and after fatigue showed a decrease after muscle tissue was raised; that is, after muscle tissue underwent centrifugal and centripetal contraction. This result is more effective and convenient for nondestructive prediction of the gastrocnemius muscle injury state. Conclusion. MRI can show the site and pathological changes of acute gastrocnemius injury.
Highlights
Gastrocnemius motor injury is a common injury among lower limb motor injuries
Magnetic resonance imaging (MRI) image acquisition of the fixed position of the calf gastrocnemius muscle of 16 subjects was processed with a computer to obtain the MRI image entropy value, and the fitting curve was obtained by using the least square method [7]
MRI images of the calf gastrocnemius muscle during heel lifting were collected and synchronous surface EMG signals were collected. e surface EMG signals of each subject with heel lifting under different weights were segmented at their intersection points, respectively processed to obtain the corresponding root mean square (RMS), and normalized and fitted by the least square method under different forces of different subjects
Summary
Gastrocnemius motor injury is a common injury among lower limb motor injuries. Ultrasound and other imaging methods play a role in the detection of acute sports injury of the gastrocnemius muscle [1, 2]. Magnetic resonance imaging (MRI) has good soft tissue resolution, for soft tissue injury, edema, and hemorrhage, according to its characteristics, and the calf muscles injury exhibit certain MRI features. MRI can show the skin, subcutaneous shallow deep fascia, muscles, tendon, ligament, joint capsule, synovial sheath, and slippery bursa and bone pathological damage. We analyzed the MRI signs of 16 cases of gastrocnemius muscle group sports injury admitted to our hospital from January 2016 to January 2020 and discussed the imaging findings of this disease. 16 normal gastrocnemius groups were tested, and the following data were obtained We analyzed the MRI signs of 16 cases of gastrocnemius muscle group sports injury admitted to our hospital from January 2016 to January 2020 and discussed the imaging findings of this disease. 16 normal gastrocnemius groups were tested, and the following data were obtained
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