Osteoid osteoma - The CT vessel sign

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מדריך מקוצר למשתמש מדריך מפורט למשתמש

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פותח על ידי קלירמאש פתרונות בע"מ -

Osteoid osteoma - The CT vessel sign

Year: 

2011

Source of publication :

Skeletal Radiology

Authors :

שרון, מיכל

.

Volume :

Co-Authors: 

Yaniv, G., Dept. of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel
Shabshin, N., Dept. of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel
Sharon, M., Dept. of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel
Liberman, B., Division of Orthopedics, Tel Hashomer, Sackler School of Medicine, Sheba Medical Center, Tel Aviv, Israel
Garniack, A., Dept. of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel
Rimon, U., Dept. of Diagnostic Imaging, Tel Hashomer, Sheba Medical Center, Sackler School of Medicine, Tel Aviv, Israel
Eshed, I., Dept. of Diagnostic Imaging, Tel Hashomer, Tel Aviv University Sackler School of Medicine, Sheba Medical Center, Tel Aviv, Israel

From page: 

1311

To page: 

1314

(

Total pages: 

4

)

Link :

Osteoid osteoma - The CT vessel sign

Abstract: 

Objective To evaluate whether the presence of a feeding vessel in proximity to osteoid osteomas of long bones on multidetector CT (MDCT) can be an adjuvant clue for the diagnosis of osteoid osteoma. Materials and methods Forty-nine CT scans of patients with radiological and clinical diagnosis of osteoid osteoma of long bones and a control group of 20 CT scans of patients with cortical-based lesions other then osteoid osteoma were analyzed. Two radiologists evaluated the CT images in consensus for the presence of a blood vessel in the same axial slices in which the nidus of osteoid osteoma was seen and to determine the incidence. Results In 39 cases (79.6%) of osteoid osteoma, a blood vessel either entered the nidus (23 patients) or was seen in proximity to it (16 patients). This was significantly different (P<0.05) from the cortical-based lesions, in which only two CT scans (10%) showed a blood vessel in the lesion's proximity. Conclusion In the majority of osteoid osteoma lesions in long bones, a blood vessel can be seen on MDCT either entering the nidus itself or in its proximity. The role of this vessel in the lesion pathogenesis and whether it improves diagnostic accuracy need further evaluation. © ISS 2011.