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Title: Three-dimensional ultrasound measurement of cervical lymph node volume
Authors: Ying, M 
Pang, BSF
Issue Date: 2009
Publisher: British Institute of Radiology
Source: British journal of radiology, 2009, v. 82, no. 980, p. 617-625 How to cite?
Journal: British journal of radiology 
Abstract: This study evaluated the accuracy of three-dimensional (3-D) ultrasound measurement of lymph node volume, and investigated the normal variations of cervical nodal volume. The volumes of 12 porcine neck lymph nodes were measured with 3-D ultrasound and calculated from two-dimensional (2-D) ultrasound using the ellipsoid formula, and compared with the volume measured by the water displacement method. 3-D ultrasound of cervical nodes was performed in 100 subjects, and the volumes of all ultrasound-detectable cervical nodes were measured. Results showed that the mean absolute errors of 3-D ultrasound and the 2-D ellipsoid formula method were 0.042 ml and 0.372 ml, respectively, and the mean percentage errors in measurement were 4.4% and 17.8%, respectively. In total, 830 nodes were detected in the subjects. Upper cervical nodes (0.48±0.47 ml) were significantly larger than submandibular nodes (0.39±0.24 ml) (p<.05), and these two groups of lymph nodes were significantly larger than parotid (0.1±0.06 ml) and posterior triangle (0.1±0.11 ml) nodes (p<.05). There was no significant variation of normal cervical node volume with advancing age (p>.05). Men aged 20-29 years had significantly larger cervical nodes than women of the same age group (p<.05), whereas there was no significant gender difference in nodal volume in other age groups (p>.05). 3-D ultrasound measurement of cervical nodal volume is feasible. In vitro study showed that 3-D ultrasound had a lower mean error than the 2-D ellipsoid formula method in the measurement of cervical nodal volume. This study provides baseline information on the normal variations of cervical lymph node volume, as measured by 3-D ultrasound.
ISSN: 0007-1285
EISSN: 1748-880X
DOI: 10.1259/bjr/17611956
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