Qualitative evaluation of thyroid nodules with gray-scale contrast-enhanced ultrasound / 浙江大学学报·医学版
Journal of Zhejiang University. Medical sciences
;
(6): 515-518, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-310420
ABSTRACT
<p><b>OBJECTIVE</b>To assess the feasibility of gray-scale contrast-enhanced ultrasound for characterizing thyroid nodules.</p><p><b>METHODS</b>Forty thyroid nodules from 35 patients were studied both by conventional techniques and gray-scale contrast-enhanced ultrasound. Of the nodules examined, 15 were benign and 25 malignant. The enhancement of echogenicity was evaluated. The diagnosis was confirmed by surgical biopsy and histopathological examination.</p><p><b>RESULTS</b>The study using gray-scale contrast-enhanced ultrasound showed absent contrast-enhancement in 9 of 25 malignant nodules and 1 of 11 benign solitary nodules; intense enhancement in 6 of 25 malignant nodules, with perfusion defect in the center; diffuse faint enhancement in 10 of 25 malignant nodules and 10 of 11 benign solitary nodules. Benign cystic nodules all showed absent enhancement in the cystic components and 2 of 4 intense enhancement in the solitary components.</p><p><b>CONCLUSIONS</b>Gray-scale contrast-enhanced ultrasonography imaging may be a useful tool for evaluating the perfusion of thyroid nodules. Solitary nodules showing absent enhancement or intense enhancement with absent enhancement in the nodular center may suggest malignant.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Thyroid Neoplasms
/
Diagnostic Imaging
/
Image Enhancement
/
Ultrasonography
/
Thyroid Nodule
/
Contrast Media
/
Diagnosis, Differential
/
Methods
Type of study:
Diagnostic study
/
Qualitative research
Limits:
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Journal of Zhejiang University. Medical sciences
Year:
2008
Type:
Article
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