The Accuracy of High Resolution Ultrasound in the Diagnosis of TMJ Disc Displacement in Comparison With MRI

Autor: Hassan Mohamed Mohamed Youssef, Khaled Ahmed Mohamed Ali, Remon Zaher Elia
Rok vydání: 2021
Předmět:
Zdroj: QJM: An International Journal of Medicine. 114
ISSN: 1460-2393
1460-2725
DOI: 10.1093/qjmed/hcab106.026
Popis: Background The temporomandibular joint disorders (TMD) have been a major source of pathology. Being only second to chronic low back pain as a cause of pain and disability. MRI is currently considered the gold standard method for imaging of the TMJ. USG is a non-invasive, inexpensive procedure. And can provide a potential sensitive tool for diagnosis of anterior disc displacement. Aim of the work The aim of this study is to compare between the accuracy of ultrasound and MRI in diagnosis of TMJ disc displacement. Patients and Methods This study was carried out at the Radiology Department, Ain Shams University Hospitals. Twenty one patients with clinically suspected TMJ disc displacement underwent ultrasound (US) and MRI examination. Results The overall sensitivity of the US to diagnose disc displacement compared to MRI reached (94.7%), specificity (91.3%), Positive Predictive value (90.0%), Negative Predictive Value (95%) and accuracy (92.9%). The results indicated 1.8 mm was the most accurate cut-off distance between the articular capsule and the anterior surface of the mandibular condyle for diagnosis of MR positive disc displacement.
Databáze: OpenAIRE