Korean J Radiol.  2004 Mar;5(1):47-54. 10.3348/kjr.2004.5.1.47.

CT Arthrography and Virtual Arthroscopy in the Diagnosis of the Anterior Cruciate Ligament and Meniscal Abnormalities of the Knee Joint

Affiliations
  • 1Department of Radiology, Seoul National University College of Medicine the Institute of Radiation Medicine, SNUMRC. hongsh@radiol.snu.ac.kr
  • 2Aeromedical Center, Republic of Korea Air Force.

Abstract


OBJECTIVE
To determine the diagnostic accuracy of CT arthrography and virtual arthroscopy in the diagnosis of anterior cruciate ligament and meniscus pathology. MATERIALS AND METHODS: Thirty-eight consecutive patients who underwent CT arthrography and arthroscopy of the knee were included in this study. The ages of the patients ranged from 19 to 52 years and all of the patients were male. Sagittal, coronal, transverse and oblique coronal multiplanar reconstruction images were reformatted from CT arthrography. Virtual arthroscopy was performed from 6 standard views using a volume rendering technique. Three radiologists analyzed the MPR images and two orthopedic surgeons analyzed the virtual arthroscopic images. RESULTS: The sensitivity and specificity of CT arthrography for the diagnosis of anterior cruciate ligament abnormalities were 87.5%-100% and 93.3-96.7%, respectively, and those for meniscus abnormalities were 91.7%-100% and 98.1%, respectively. The sensitivity and specificity of virtual arthroscopy for the diagnosis of anterior cruciate ligament abnormalities were 87.5% and 83.3-90%, respectively, and those for meniscus abnormalities were 83.3%-87.5% and 96.1-98.1%, respectively. CONCLUSION: CT arthrography and virtual arthroscopy showed good diagnostic accuracy for anterior cruciate ligament and meniscal abnormalities.

Keyword

Knee, CT; Knee, arthrography; Knee, ligaments, menisci, and cartilage

MeSH Terms

Adult
Anterior Cruciate Ligament/injuries/*radiography
Arthrography/*methods
Arthroscopy/*methods
Diagnosis, Computer-Assisted/methods
Human
Knee Injuries/*diagnosis/radiography
Male
Menisci, Tibial/injuries/*radiography
Middle Aged
Sensitivity and Specificity
Tomography, X-Ray Computed/methods
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