Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27547
Title: Vascularity and grey-scale sonographic features of normal cervical lymph nodes : variations with nodal size
Authors: Ying, M 
Ahuja, A
Brook, F
Metreweli, C
Keywords: Echogenic hilus
Lymph nodes
Neck
Size
Ultrasound
Vascularity
Issue Date: 2001
Publisher: W B Saunders Co Ltd
Source: Clinical radiology, 2001, v. 56, no. 5, p. 416-419 How to cite?
Journal: Clinical Radiology 
Abstract: Aim: This study was undertaken to investigate variations in the vascularity and grey-scale sonographic features of cervical lymph nodes with their size. Materials and Methods: High resolution grey-scale sonography and power Doppler sonography were performed in 1133 cervical nodes in 109 volunteers who had a sonographic examination of the neck. Standardized parameters were used in power Doppler sonography. Results: About 90% of lymph nodes with a maximum transverse diameter greater than 5 mm showed vascularity and an echogenic hilus. Smaller nodes were less likely to show vascularity and an echogenic hilus. As the size of the lymph nodes increased, the intranodal blood flow velocity increased significantly (P < 0.05), whereas there was no significant variation in the vascular resistance (P > 0.05). Conclusions: The findings provide a baseline for grey-scale and power Doppler sonography of normal cervical lymph nodes. Sonologists will find varying vascularity and grey-scale appearances when encountering nodes of different sizes.
URI: http://hdl.handle.net/10397/27547
ISSN: 0009-9260
DOI: 10.1053/crad.2000.0680
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