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CT arthrography and virtual arthroscopy in the diagnosis of the anterior cruciate ligament and meniscal abnormalities of the knee joint.

Lee W, Kim HS, Kim SJ, Kim HH, Chung JW, Kang HS, Hong SH, Choi JY - Korean J Radiol (2004 Jan-Mar)

Bottom Line: The ages of the patients ranged from 19 to 52 years and all of the patients were male.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Seoul National University College of Medicine the Institute of Radiation Medicine, SNUMRC, Seoul, Korea.

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.

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Related in: MedlinePlus

Medial meniscus tear in a 28-year-old man with knee pain after trauma.A. Sagittal CT image clearly demonstrating an oblique tear of the medial meniscus (arrow).B. Virtual arthroscopy of the medial meniscus showing cleavage (arrow) and a rugged free margin of torn meniscus (arrowheads). The tibial plateau (asterisk) and femur condyle (curved arrow) are also shown.
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Figure 1: Medial meniscus tear in a 28-year-old man with knee pain after trauma.A. Sagittal CT image clearly demonstrating an oblique tear of the medial meniscus (arrow).B. Virtual arthroscopy of the medial meniscus showing cleavage (arrow) and a rugged free margin of torn meniscus (arrowheads). The tibial plateau (asterisk) and femur condyle (curved arrow) are also shown.

Mentions: Sagittal (Fig. 1A), coronal (Fig. 2A), and transverse MPR images were reformatted using a PC-based 3D reconstruction program (Rapidia, Infinitt, Seoul, Korea) with a thickness of 1 mm. The oblique MPR images along the course of the ACL (Fig. 3A) were additionally reformatted. The window width and center used for the MPR images were 1400 and 300, respectively.


CT arthrography and virtual arthroscopy in the diagnosis of the anterior cruciate ligament and meniscal abnormalities of the knee joint.

Lee W, Kim HS, Kim SJ, Kim HH, Chung JW, Kang HS, Hong SH, Choi JY - Korean J Radiol (2004 Jan-Mar)

Medial meniscus tear in a 28-year-old man with knee pain after trauma.A. Sagittal CT image clearly demonstrating an oblique tear of the medial meniscus (arrow).B. Virtual arthroscopy of the medial meniscus showing cleavage (arrow) and a rugged free margin of torn meniscus (arrowheads). The tibial plateau (asterisk) and femur condyle (curved arrow) are also shown.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2698113&req=5

Figure 1: Medial meniscus tear in a 28-year-old man with knee pain after trauma.A. Sagittal CT image clearly demonstrating an oblique tear of the medial meniscus (arrow).B. Virtual arthroscopy of the medial meniscus showing cleavage (arrow) and a rugged free margin of torn meniscus (arrowheads). The tibial plateau (asterisk) and femur condyle (curved arrow) are also shown.
Mentions: Sagittal (Fig. 1A), coronal (Fig. 2A), and transverse MPR images were reformatted using a PC-based 3D reconstruction program (Rapidia, Infinitt, Seoul, Korea) with a thickness of 1 mm. The oblique MPR images along the course of the ACL (Fig. 3A) were additionally reformatted. The window width and center used for the MPR images were 1400 and 300, respectively.

Bottom Line: The ages of the patients ranged from 19 to 52 years and all of the patients were male.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Seoul National University College of Medicine the Institute of Radiation Medicine, SNUMRC, Seoul, Korea.

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.

Show MeSH
Related in: MedlinePlus